LOCAL CLIMATOLOGICAL DATA Monthly Summary April 2008 Station: Portsmouth, Virginia - KPWR Latitude: 36° 48' 04" N Longitude: 76° 19' 37" W Elevation (ground): 20 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind | Sun | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak | Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | I | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | n | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | d | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | e | | e| m | m | e | n | t | n | g | g |8 smk, hz| r| v | w | x | n | n | d | d | r | d | r | d | r | x | | | | | | | | | | |9 blw snw| | | | | | | | | | | | | | | | 1| 2 | 3 | 4A | 4B | 5 | 6 | 7 | 8 | 9 |10| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18| 19| 20| 21| 22| 23 | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |01| 76.6 | 60.7 | 68.7 | 67.6 | 63| 84| 0| 4|.........| 0| 0.06| 0.0| 30.25| 29.96|30.081| 8.1| 7.8|195| 28|SSW| 4|183| | |02| 66.9 | 43.1 | 55.0 | 55.0 | 41| 62| 10| 0|.........| 0| 0.00| 0.0| 30.44| 30.02|30.265| 9.5| 6.0| 32| 28| NE| 11|337| | |03| 55.5 | 43.3 | 49.4 | 50.6 | 40| 67| 15| 0|1........| 0| 0.12| 0.0| 30.49| 30.12|30.386| 4.0| 3.9| 69| 20|ENE| 3| 75| | |04| 74.4 | 50.2 | 62.3 | 62.7 | 59| 87| 3| 0|1........| 0| 0.53| 0.0| 30.08| 29.84|29.940| 7.4| 6.9|204| 26|SSW| 2|212| | |05| 68.5 | 52.6 | 60.5 | 62.5 | 60| 92| 4| 0|1........| 0| 0.41| 0.0| 30.00| 29.81|29.935| 6.2| 0.2|146| 28| NE| 3|195| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 54.0 | 46.5 | 50.3 | 51.0 | 49| 94| 14| 0|1........| 0| 0.28| 0.0| 30.16| 29.89|30.029|10.4| 9.7| 30| 26| NE| 4| 15| | |07| 48.4 | 46.0 | 47.2 | 47.0 | 45| 94| 18| 0|1........| 0| 0.01| 0.0| 30.24| 30.07|30.197|10.5|10.5| 45| 27| NE| 7| 39| | |08| 49.6 | 46.2 | 47.9 | 48.0 | 46| 94| 17| 0|1........| 0| 0.01| 0.0| 30.26| 30.11|30.230| 9.1| 8.9| 4| 23| N| 6| 0| | |09| 56.4 | 48.7 | 52.6 | 51.7 | 50| 95| 12| 0|1........| 0| 0.01| 0.0| 30.23| 30.10|30.185| 6.1| 5.7| 8| 19| N| 7| 12| | |10| 74.1 | 51.1 | 62.6 | 60.0 | 56| 88| 2| 0|1........| 0| 0.00| 0.0| 30.18| 30.05|30.124| 2.2| 1.1| 61| 15| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 82.8 | 56.7 | 69.8 | 68.4 | 61| 79| 0| 5|1........| 0| 0.00| 0.0| 30.07| 29.79|29.935| 5.1| 5.0|197| 20|SSW| 1|193| | |12| 82.7 | 62.5 | 72.6 | 70.5 | 63| 78| 0| 8|1.3......| 0| 0.16| 0.0| 29.78| 29.56|29.661| 9.6| 9.4|205| 38|WSW| 6|188| | |13| 65.3 | 47.5 | 56.4 | 59.0 | 46| 64| 8| 0|.........| 0| 0.04| 0.0| 29.90| 29.64|29.751| 5.7| 3.0| 21| 23| NE| 2| 17| | |14| 52.2 | 41.9 | 47.1*| 47.9 | 40| 76| 18| 0|.........| 0| T | 0.0| 30.05| 29.82|29.964| 5.6| 4.9| 30| 23| NE| 3|339| | |15| 55.0 | 41.0 | 48.0 | 48.7 | 38| 67| 17| 0|.........| 0| 0.00| 0.0| 30.22| 29.97|30.114| 7.2| 6.6| 30| 28| NE| 7|353| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 61.7 | 35.3*| 48.5 | 50.2 | 33| 57| 16| 0|.........| 0| 0.00| 0.0| 30.30| 30.17|30.231| 5.0| 4.4| 26| 24| NE| 6|358| | |17| 75.0 | 37.2 | 56.1 | 55.6 | 37| 55| 9| 0|.........| 0| 0.00| 0.0| 30.19| 30.03|30.118| 3.2| 2.9|356| 19|NNW| 3|312| | |18| 84.1 | 48.0 | 66.1 | 66.5 | 46| 52| 0| 1|.........| 0| 0.00| 0.0| 30.07| 29.93|30.020| 2.4| 0.4| 37| 18| NE| 0|230| | |19| 84.6 | 54.3 | 69.4 | 69.3 | 53| 58| 0| 5|.........| 0| 0.00| 0.0| 30.03| 29.87|29.963| 3.9| 3.5|174| 21|SSE| 0|183| | |20| 70.8 | 58.9 | 64.9 | 65.6 | 61| 86| 0| 0|1.3......| 0| 0.35| 0.0| 29.94| 29.79|29.911| 4.9| 4.8|152| 29|SSE| 3|141| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 59.6 | 54.4 | 57.0 | 57.2 | 56| 95| 8| 0|1.3......| 0| 1.89| 0.0| 30.03| 29.84|29.974| 4.3| 3.0| 38| 21| NE| 5| 49| | |22| 69.0 | 57.6 | 63.3 | 62.2 | 59| 89| 1| 0|1........| 0| 0.80| 0.0| 30.12| 29.89|30.037| 8.3| 8.3| 45| 26| NE| 5| 34| | |23| 69.4 | 58.6 | 64.0 | 63.5 | 59| 87| 1| 0|1......8.| 0| 0.00| 0.0| 30.18| 30.02|30.136| 7.3| 7.2| 46| 21| NE| 4| 44| | |24| 80.0 | 53.7 | 66.8 | 66.4 | 57| 75| 0| 2|.2.......| 0| 0.00| 0.0| 30.22| 30.08|30.157| 2.1| 0.9| 56| 14|WSW| 0| 0| | |25| 81.9 | 57.2 | 69.6 | 69.6 | 60| 73| 0| 5|1........| 0| 0.00| 0.0| 30.16| 30.03|30.095| 2.3| 2.0|189| 17| S| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 86.0*| 59.6 | 72.8*| 73.1 | 62| 70| 0| 8|.........| 0| 0.00| 0.0| 30.05| 29.93|29.994| 4.0| 3.6|182| 20| S| 2|169| | |27| 71.6 | 57.9 | 64.8 | 62.9 | 59| 88| 0| 0|1......8.| 0| T | 0.0| 30.10| 29.97|30.051| 5.6| 4.7| 22| 17| N| 5|351| | |28| 71.9 | 58.4 | 65.2 | 64.2 | 63| 95| 0| 0|1.3......| 0| 0.75| 0.0| 30.00| 29.71|29.825| 3.9| 3.1|162| 23|SSE| 3|158| | |29| 63.9 | 52.3 | 58.1 | 58.3 | 50| 77| 7| 0|.........| 0| 0.11| 0.0| 29.99| 29.65|29.815| 5.1| 4.2|328| 23|WNW| 6|268| | |30| 64.8 | 49.9 | 57.4 | 56.2 | 41| 57| 7| 0|.........| 0| 0.00| 0.0| 30.14| 29.99|30.068| 5.4| 4.8| 12| 23| N| 5| 3| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2056.7|1531.3|------|------|---|----| 187| 38| Days | 5.53| 0.0| 30.49| 29.56|30.040| 5.8| 1.8| 46| 38|WSW| 11|337| ---- | +------+------+------+------+---+----+----+----+------------|+2.03" or 158% ---+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 68.6| 51.0| 59.8 | 59.7 | 52|77.8|----|----|>.01 Inch 15|12.65| 0.4| 3 | 12 |------|----|----|---| 12 | 2 | | | -1.0° +2.3° +0.7° +------+---+----+----+----+------------| -1.67" or 88% ---+------+------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |>1.0 Inch 0| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |2789| 48|Thunder 4|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 1| 2.40| 21-22| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 0 | 0 |----|----| Clear 5 Partly Cloudy 14 Cloudy 11 | +--------+---------+--------+--------+----+----+------------------------------------------+ NOTES: Data in column 4A are (MAX+MIN) / 2, whereas data in columns 4B, 5, 6, 15, 16, 23 are means via continuous observations Units are: Temperature=°F, Wind=mph, Pressure=Inches Hg, Precipitation=inches. for 24 hours. Column 5: Dew point is calculated from temperature and humidity and is continuously averaged for 24 hours. Columns 7, 8: Degree Days heating base is 65°F, cooling base is 65°F. Data in columns 9, 10, 12 are entered manually by the station observer. Columns 17-18: Resultant wind is calculated by the vector sum of continuous wind observations. Column 23: Sunshine index is measured in Watts/m^2 and is continuously averaged for 24 hours. Data in columns 4B, 5, 6, 15, 16, 23 are updated continuously, there by achieving a "true" mean.OBSERVER NOTES: FROPA: 2nd, 5th,12th,27th, 28th (WRMFROPA), 29th
STATION RECORDS:
12th - TEMPERATURE - Maximum Minimum 62° [previous 58° 2001]
12th - WIND - 38 mph [previous 33 mph 1988
14th - TEMPERATURE - Minimum Maximum 52° [previous 54° 1988]
21st - RAINFALL - 1.89" [previous 0.66" 1993] MONTHLY AVERAGE MAXIMUM TEMP OF 68.6° WAS 1.0° BELOW NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 51.0° WAS 2.3° ABOVE NORMAL. MONTHLY AVERAGE TEMP OF 59.8° WAS 0.7° ABOVE NORMAL. MAXIMUM TEMP: 86° ON THE 26TH MINIMUM TEMP: 35° ON THE 16TH DAYS WITH TEMPERATURES: MAXIMUM >= 90°: 0 MAXIMUM <= 32°: 0 MINIMUM <= 32°: 0 MINIMUM <= 0°: 0 HEATING DEGREE DAYS: 192.0 COOLING DEGREE DAYS: 0.0 DAYS WITH HEATING DEGREE DAYS: 19 DAYS WITH COOLING DEGREE DAYS: 8 PRECIP TOTAL OF 5.53" WAS 2.03" ABOVE NORMAL (158% OF NORMAL). GREATEST DAILY RAINFALL: 1.89" ON THE 21ST GREATEST 24-HOUR RAINFALL: 2.40" ON THE 21ST-22ND DAYS WITH MEASUREABLE PRECIP: 15 OR 50.00% AVERAGE DAILY PRECIP: 0.18" NORMAL DAILY PRECIP: 0.12" DAYS WITH PRECIP >= 0.01" 15 DAYS WITH PRECIP >= 0.10" 10 DAYS WITH PRECIP >= 0.50" 4 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 4 NUMBER OF THUNDERSTORMS: 5 DAYS WITH SNOW: 00 SNOWFALL TOTAL: 0.0" CLOUDY DAYS: 11 PARTLY CLOUDY DAYS: 14 SUNNY/CLEAR DAYS: 5 DAYS WITH F/GF: 16 DAYS WITH DENSE FOG: 1 DAYS WITH FROST: 0 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 59.8° WAS 2.1° ABOVE NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 41.1° WAS 2.5° ABOVE NORMAL. YEARLY AVERAGE TEMP OF 50.5° WAS 2.4° ABOVE NORMAL. MAXIMUM TEMP: 86° ON APRIL 26TH MINIMUM TEMP: 19° ON JANUARY 4TH DAYS WITH TEMPERATURES: MAXIMUM >= 90°: 0 MAXIMUM <= 32°: 2 MINIMUM <= 32°: 26 MINIMUM <= 0°: 0 HEATING DEGREE DAYS: 1807.0 COOLING DEGREE DAYS: 46.5 DAYS WITH HEATING DEGREE DAYS: 108 DAYS WITH COOLING DEGREE DAYS: 10 PRECIP TOTAL OF 12.65" WAS 1.67" BELOW NORMAL ( 88% OF NORMAL). GREATEST DAILY RAINFALL: 1.89" ON APRIL 21ST GREATEST 24-HOUR RAINFALL: 2.40" ON MAPRIL 21ST-22ND DAYS WITH MEASUREABLE PRECIP: 41 OF 121 OR 33.88% AVERAGE DAILY PRECIP: 0.10" NORMAL DAILY PRECIP: 0.12" DAYS WITH PRECIP >= 0.01" 41 DAYS WITH PRECIP >= 0.10" 24 DAYS WITH PRECIP >= 0.50" 8 DAYS WITH PRECIP >= 1.00" 3 DAYS WITH THUNDERSTORMS: 8 NUMBER OF THUNDERSTORMS: 9 DAYS WITH SNOW: 06 SNOWFALL TOTAL: 0.4" CLOUDY DAYS: 27 PARTLY CLOUDY DAYS: 65 SUNNY/CLEAR DAYS: 29 DAYS WITH F/GF: 38 DAYS WITH DENSE FOG: 1 DAYS WITH FROST: 13OBSERVATIONS AT 3-HOUR INTERVALS April 2008: Portsmouth, Virginia - KPWR +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 1 | APR 2 | APR 3 | | | | | |01| |30.25| 0.00| 61| 55| 82|15| 5| 16| |30.02| 0.00| 66| 63| 90|20| 10| 17| |30.45| 0.00| 44| 37| 76|06| 0| 7| |04| |30.19| 0.00| 61| 56| 84|15| 5| 13| |30.04| 0.00| 65| 63| 94|20| 6| 12| |30.47| 0.00| 48| 35| 60|06| 4| 11| |07| |30.16| 0.00| 62| 59| 90|18| 6| 15| |30.21| 0.00| 53| 36| 53|00| 14| 27| |30.47| 0.00| 49| 34| 56|06| 5| 14| |10| |30.13| 0.00| 72| 64| 77|20| 10| 27| |30.30| 0.00| 53| 37| 54|00| 13| 24| |30.48| 0.00| 54| 35| 50|04| 7| 20| |13| |30.07| 0.00| 72| 66| 82|20| 10| 20| |30.35| 0.00| 53| 37| 54|04| 13| 23| |30.43| 0.00| 55| 40| 57|09| 5| 17| |16| |29.99| 0.00| 76| 66| 73|20| 11| 24| |30.34| 0.00| 53| 36| 52|04| 11| 20| |30.35| 0.00| 53| 41| 64|06| 5| 16| |19| |29.96| 0.00| 72| 65| 80|20| 10| 20| |30.38| 0.00| 51| 30| 43|04| 11| 19| |30.28| 0.00| 50| 46| 85|06| 5| 15| |22| |30.00| 0.00| 67| 64| 88|20| 7| 19| |30.44| 0.00| 46| 37| 71|04| 0| 6| |30.20| 0.01| 52| 49| 91|04| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 4 | APR 5 | APR 6 | | | | | |01| |30.08| 0.27| 57| 56| 97|13| 5| 15| |29.85| 0.00| 67| 62| 84|20| 10| 22| |29.96| 0.03| 54| 53| 96|04| 10| 19| |04| |30.00| 0.00| 57| 56| 96|22| 5| 14| |29.84| 0.00| 64| 63| 96|20| 5| 14| |29.91| 0.05| 53| 52| 96|04| 11| 25| |07| |30.01| 0.00| 52| 51| 96|24| 5| 15| |29.89| 0.00| 64| 63| 96|20| 5| 12| |29.98| 0.04| 51| 50| 96|00| 11| 20| |10| |30.00| 0.00| 55| 54| 95|20| 6| 11| |29.95| 0.00| 66| 65| 95|20| 6| 16| |30.00| 0.00| 53| 50| 92|04| 14| 26| |13| |29.96| 0.00| 66| 61| 84|20| 10| 20| |29.97| 0.00| 67| 59| 75|33| 6| 16| |30.04| 0.00| 53| 51| 92|00| 10| 19| |16| |29.85| 0.00| 73| 64| 73|20| 13| 23| |29.99| 0.01| 59| 54| 85|04| 7| 18| |30.08| 0.00| 50| 49| 95|00| 11| 22| |19| |29.85| 0.00| 73| 64| 75|20| 10| 22| |29.98| 0.08| 57| 55| 95|04| 7| 19| |30.12| 0.00| 48| 47| 95|00| 10| 22| |22| |29.86| 0.00| 69| 63| 83|18| 6| 17| |30.00| 0.01| 55| 53| 94|04| 6| 15| |30.16| 0.00| 47| 45| 95|04| 10| 21| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 7 | APR 8 | APR 9 | | | | | |01| |30.17| 0.00| 47| 46| 96|04| 7| 18| |30.23| 0.00| 46| 45| 95|04| 7| 19| |30.22| 0.00| 49| 47| 93|00| 6| 15| |04| |30.16| 0.00| 46| 45| 95|04| 10| 22| |30.21| 0.00| 46| 45| 94|00| 10| 20| |30.18| 0.00| 49| 48| 97|00| 6| 15| |07| |30.17| 0.00| 46| 45| 96|04| 11| 20| |30.22| 0.01| 47| 46| 96|00| 10| 18| |30.19| 0.00| 50| 49| 97|02| 6| 17| |10| |30.22| 0.00| 47| 45| 95|04| 11| 20| |30.24| 0.00| 48| 45| 91|00| 12| 23| |30.23| 0.00| 50| 49| 95|00| 10| 17| |13| |30.24| 0.00| 48| 45| 92|04| 12| 22| |30.25| 0.00| 49| 47| 92|00| 11| 22| |30.19| 0.00| 53| 52| 96|00| 7| 17| |16| |30.21| 0.00| 48| 46| 91|04| 11| 20| |30.23| 0.00| 49| 47| 94|00| 11| 20| |30.17| 0.00| 56| 54| 93|04| 6| 12| |19| |30.21| 0.00| 47| 45| 91|04| 12| 21| |30.24| 0.00| 49| 47| 95|00| 7| 18| |30.16| 0.00| 54| 53| 94|04| 5| 11| |22| |30.23| 0.00| 47| 45| 95|04| 10| 18| |30.26| 0.00| 49| 48| 95|04| 6| 18| |30.17| 0.00| 53| 53| 97|04| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 10 | APR 11 | APR 12 | | | | | |01| |30.15| 0.00| 53| 53| 98|06| 0| 6| |30.06| 0.00| 57| 56| 95|15| 4| 12| |29.78| 0.00| 68| 61| 79|20| 6| 16| |04| |30.13| 0.00| 52| 51| 98|06| 0| 5| |30.04| 0.00| 57| 56| 97|15| 0| 7| |29.74| 0.00| 66| 60| 81|20| 7| 18| |07| |30.16| 0.00| 51| 51| 98|33| 0| 5| |30.05| 0.00| 58| 57| 97|18| 4| 7| |29.72| 0.00| 67| 59| 77|20| 7| 17| |10| |30.18| 0.00| 55| 54| 99|31| 4| 10| |30.04| 0.00| 65| 64| 96|20| 4| 7| |29.70| 0.00| 74| 63| 68|20| 12| 22| |13| |30.16| 0.00| 66| 59| 77|04| 5| 14| |29.94| 0.00| 77| 66| 69|20| 10| 19| |29.64| 0.00| 81| 68| 64|20| 13| 24| |16| |30.09| 0.00| 72| 61| 68|04| 6| 14| |29.83| 0.00| 82| 65| 56|20| 10| 20| |29.61| 0.07| 69| 65| 85|24| 11| 38| |19| |30.07| 0.00| 71| 60| 69|13| 4| 11| |29.79| 0.00| 79| 61| 54|20| 7| 18| |29.58| 0.00| 69| 67| 91|20| 10| 19| |22| |30.10| 0.00| 58| 55| 90|13| 4| 11| |29.80| 0.00| 71| 63| 75|18| 6| 15| |29.61| 0.00| 66| 60| 83|20| 10| 17| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 13 | APR 14 | APR 15 | | | | | |01| |29.64| 0.00| 61| 56| 83|20| 6| 19| |29.90| 0.00| 47| 42| 83|33| 7| 17| |30.05| 0.00| 42| 39| 90|00| 0| 0| |04| |29.69| 0.00| 61| 51| 69|04| 4| 17| |29.89| 0.00| 45| 40| 83|00| 0| 6| |30.02| 0.00| 43| 39| 88|04| 0| 5| |07| |29.76| 0.00| 57| 43| 61|00| 6| 15| |29.93| 0.00| 45| 40| 82|33| 5| 11| |30.07| 0.00| 48| 35| 62|04| 7| 21| |10| |29.79| 0.00| 59| 43| 55|04| 6| 12| |29.98| 0.00| 48| 42| 80|04| 7| 21| |30.12| 0.00| 52| 40| 64|00| 13| 25| |13| |29.75| 0.00| 65| 46| 50|31| 4| 12| |30.00| 0.00| 51| 42| 72|04| 12| 21| |30.16| 0.00| 54| 34| 48|04| 13| 28| |16| |29.73| 0.00| 61| 46| 57|04| 4| 11| |29.99| 0.00| 51| 40| 66|06| 7| 18| |30.14| 0.00| 54| 37| 53|04| 12| 25| |19| |29.78| 0.00| 58| 42| 56|33| 11| 20| |29.99| 0.00| 51| 34| 53|04| 7| 17| |30.15| 0.00| 51| 38| 59|04| 10| 18| |22| |29.88| 0.01| 53| 46| 77|00| 6| 16| |30.04| 0.00| 45| 39| 79|06| 0| 10| |30.20| 0.00| 45| 37| 73|04| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 16 | APR 17 | APR 18 | | | | | |01| |30.21| 0.00| 40| 35| 82|04| 0| 5| |30.19| 0.00| 41| 33| 74|29| 0| 6| |30.07| 0.00| 52| 40| 62|13| 0| 5| |04| |30.19| 0.00| 36| 33| 89|00| 0| 0| |30.16| 0.00| 38| 34| 86|27| 0| 6| |30.02| 0.00| 49| 43| 80|15| 0| 6| |07| |30.26| 0.00| 36| 34| 93|09| 0| 4| |30.17| 0.00| 42| 40| 92|27| 0| 7| |30.04| 0.00| 48| 43| 82|00| 0| 0| |10| |30.30| 0.00| 54| 37| 52|33| 10| 18| |30.17| 0.00| 59| 36| 43|33| 10| 18| |30.07| 0.00| 69| 48| 47|27| 5| 14| |13| |30.27| 0.00| 59| 31| 34|04| 11| 24| |30.14| 0.00| 64| 35| 34|33| 7| 19| |30.04| 0.00| 80| 48| 33|33| 6| 15| |16| |30.22| 0.00| 61| 29| 29|04| 11| 21| |30.07| 0.00| 68| 38| 33|33| 7| 16| |29.99| 0.00| 83| 47| 28|04| 6| 16| |19| |30.21| 0.00| 58| 33| 38|04| 7| 20| |30.03| 0.00| 71| 41| 34|04| 4| 10| |29.99| 0.00| 83| 49| 31|15| 4| 15| |22| |30.22| 0.00| 49| 31| 50|04| 0| 4| |30.07| 0.00| 58| 41| 54|11| 0| 6| |30.00| 0.00| 68| 48| 49|15| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+MAXIMUM SHORT DURATION PRECIPITATION +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.04 | 0.08 | 0.11 | 0.15 | 0.22 | 0.32 | 0.43 | 0.53 | 0.63 | 0.73 | 0.82 | 0.92 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1004 | 1009 | 1014 | 1019 | 1029 | 1043 | 1100 | 1120 | 1140 | 1200 | 1228 | 1300 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ The precipitation amounts for the indicated time intervals may occur at any time during the month. The time indicated is the ending time of the interval. Date and time are not entered for trace amounts.OBSERVATIONS AT 3-HOUR INTERVALS April 2008: Portsmouth, Virginia - KPWR +--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | T | | | Wind | | | | T | | | Wind | | | | T | | | Wind | | | | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | R | e | | % +--+---+---+ | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | a | m | D | | D| | | | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | S | P | i | p | e | H | i| | | | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | u | r | n | e | w | u | r| | | | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | n | e | f | r | | m | e| | | | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | s | s | a | a | P | i | c| S | | | H| h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | h | s | l | t | o | d | t| p | G | | o| i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | i | u | l | u | i | i | i| e | u | | u| n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | n | r | | r | n | t | o| e | s | | r| e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | e | e | Rate| e | t | y | n| d | t | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 19 | APR 20 | APR 21 | | | | | |01| |29.99| 0.00| 61| 50| 65|20| 4| 10| |29.94| 0.00| 66| 60| 79|15| 5| 19| |29.96| 0.03| 58| 57| 94|18| 4| 10| |04| |29.97| 0.00| 58| 47| 69|18| 0| 5| |29.91| 0.00| 63| 59| 85|15| 4| 10| |29.94| 0.07| 55| 54| 95|33| 4| 7| |07| |30.00| 0.00| 55| 47| 77|18| 0| 5| |29.91| 0.03| 64| 60| 89|15| 4| 15| |29.93| 0.02| 57| 56| 97|13| 0| 7| |10| |30.03| 0.00| 68| 53| 58|18| 5| 14| |29.93| 0.00| 68| 63| 85|13| 6| 19| |29.98| 0.01| 58| 56| 94|04| 0| 7| |13| |29.99| 0.00| 80| 54| 41|20| 6| 16| |29.91| 0.02| 66| 64| 94|15| 4| 12| |30.00| 0.19| 56| 55| 97|04| 5| 11| |16| |29.92| 0.00| 84| 55| 37|15| 6| 17| |29.90| 0.00| 69| 65| 86|15| 7| 29| |29.99| 0.04| 57| 56| 96|04| 7| 17| |19| |29.91| 0.00| 77| 56| 48|15| 5| 18| |29.90| 0.00| 69| 60| 74|13| 6| 20| |29.98| 0.00| 60| 58| 93|04| 5| 14| |22| |29.94| 0.00| 69| 58| 67|15| 5| 17| |29.92| 0.00| 62| 58| 86|13| 4| 13| |30.02| 0.00| 59| 58| 94|04| 6| 17| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 22 | APR 23 | APR 24 | | | | | |01| |30.03| 0.21| 58| 57| 97|04| 4| 11| |30.12| 0.00| 60| 58| 93|04| 7| 17| |30.17| 0.00| 58| 56| 94|00| 0| 0| |04| |30.00| 0.17| 58| 58| 98|04| 5| 14| |30.08| 0.00| 59| 58| 95|04| 6| 16| |30.16| 0.00| 56| 55| 96|06| 0| 4| |07| |30.01| 0.01| 58| 58| 97|04| 10| 19| |30.12| 0.00| 60| 59| 95|04| 6| 18| |30.18| 0.00| 55| 54| 97|00| 0| 0| |10| |30.06| 0.00| 63| 60| 92|04| 11| 21| |30.17| 0.00| 64| 60| 84|04| 11| 20| |30.21| 0.00| 67| 62| 82|24| 4| 10| |13| |30.06| 0.00| 69| 61| 77|04| 10| 25| |30.17| 0.00| 66| 61| 83|04| 10| 20| |30.19| 0.00| 73| 58| 59|04| 5| 12| |16| |30.05| 0.00| 67| 60| 79|04| 10| 21| |30.14| 0.00| 69| 62| 78|04| 10| 18| |30.13| 0.00| 78| 57| 49|06| 5| 11| |19| |30.06| 0.00| 64| 58| 82|04| 10| 20| |30.15| 0.00| 67| 60| 79|04| 10| 17| |30.11| 0.00| 77| 60| 56|15| 4| 10| |22| |30.11| 0.00| 61| 58| 89|04| 7| 16| |30.17| 0.00| 62| 59| 90|00| 0| 0| |30.14| 0.00| 66| 57| 72|15| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 25 | APR 26 | APR 27 | | | | | |01| |30.14| 0.00| 62| 57| 85|15| 0| 6| |30.05| 0.00| 65| 59| 82|18| 5| 11| |30.03| 0.00| 71| 64| 78|18| 0| 14| |04| |30.12| 0.00| 59| 56| 90|15| 0| 6| |30.03| 0.00| 62| 57| 83|18| 0| 7| |30.00| 0.00| 68| 62| 81|00| 6| 17| |07| |30.15| 0.00| 57| 55| 93|15| 0| 4| |30.04| 0.00| 60| 56| 87|18| 4| 7| |30.07| 0.00| 62| 59| 90|04| 7| 16| |10| |30.15| 0.00| 68| 62| 80|24| 4| 14| |30.03| 0.00| 73| 63| 71|24| 6| 19| |30.09| 0.00| 63| 60| 88|00| 6| 15| |13| |30.10| 0.00| 78| 63| 60|18| 5| 12| |29.99| 0.00| 81| 66| 60|24| 6| 18| |30.10| 0.00| 61| 57| 88|04| 7| 16| |16| |30.06| 0.00| 81| 63| 55|18| 5| 17| |29.94| 0.00| 86| 67| 54|18| 5| 18| |30.04| 0.00| 62| 57| 85|00| 7| 16| |19| |30.04| 0.00| 78| 60| 53|18| 4| 12| |29.94| 0.00| 82| 65| 55|18| 5| 13| |30.04| 0.00| 60| 58| 92|04| 6| 14| |22| |30.05| 0.00| 70| 60| 70|13| 4| 10| |30.00| 0.00| 74| 64| 71|15| 5| 12| |30.06| 0.00| 58| 57| 95|04| 4| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | APR 28 | APR 29 | APR 30 | | | | | |01| |30.00| 0.00| 59| 57| 95|06| 0| 4| |29.71| 0.05| 59| 58| 98|00| 0| 4| |30.00| 0.00| 54| 41| 63|00| 5| 16| |04| |29.92| 0.00| 59| 58| 97|15| 0| 7| |29.69| 0.00| 59| 58| 98|33| 4| 7| |30.01| 0.00| 52| 40| 64|00| 7| 17| |07| |29.89| 0.00| 63| 62| 98|13| 5| 17| |29.75| 0.00| 52| 51| 94|00| 4| 13| |30.06| 0.00| 50| 41| 69|00| 6| 16| |10| |29.87| 0.00| 69| 66| 90|18| 6| 16| |29.81| 0.00| 58| 52| 80|29| 6| 17| |30.11| 0.00| 56| 43| 60|00| 10| 23| |13| |29.81| 0.05| 70| 69| 95|18| 5| 15| |29.85| 0.00| 60| 52| 74|29| 10| 23| |30.10| 0.00| 59| 36| 42|04| 11| 23| |16| |29.72| 0.00| 70| 68| 94|15| 6| 17| |29.86| 0.00| 61| 47| 60|00| 7| 19| |30.07| 0.00| 63| 38| 39|04| 6| 15| |19| |29.74| 0.11| 62| 61| 96|00| 4| 11| |29.89| 0.00| 61| 45| 55|33| 7| 15| |30.09| 0.00| 61| 43| 53|15| 4| 12| |22| |29.75| 0.11| 61| 60| 97|24| 5| 12| |29.96| 0.00| 54| 47| 75|27| 0| 4| |30.14| 0.00| 53| 44| 71|15| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+WEATHER NOTES SUMMARY BY HOURS +--+-----------------------------+---------+ Wind Direction: Directions are those from which the wind is blowing, | | Averages | | indicated in tens of degrees from true North: i.e., 09 for East, 18 for | +----+------+---+---+---+-----+Resultant| South, 27 for West, and 00 or 36 for North. | | | | | | | | | Wind Speed: The observed one-minute average speed in miles-per-hour. | | | | T | | | | Wind | Wind Gust: The maximum instantaneous wind speed for the ten minute-period | | | | e | | % | W +----+----+ preceding the observation. | | | | m | D | | i | D | | Rainfall Rate: The instantaneous rainfall rate at time of observation, | | S | P | p | e | H | n | i | | calculated by timing consecutive 0.01" pulses from the electronic rain | | u | r | e | w | u | d | r | | gauge and interpolating this rate for one hour. | | n | e | r | | m | | e | | | | s | s | a | P | i | S | c | S | | H| h | s | t | o | d | p | t | p | | o| i | u | u | i | i | e | i | e | | u| n | r | r | n | t | e | o | e | | r| e | e | e | t | y | d | n | d | +--+----+------+---+---+---+-----+----+----+ |01| |30.055| 56| 51| 85| 3.5| 13 | 0.7| |04| |30.034| 55| 50| 86| 3.3| 03 | 1.2| |07| |30.060| 54| 49| 85| 4.5| 03 | 2.0| |10| |30.083| 60| 52| 77| 7.1| 00 | 2.4| |13| |30.070| 63| 52| 69| 7.5| 03 | 2.5| |16| |30.034| 64| 52| 67| 7.3| 05 | 2.9| |19| |30.031| 63| 51| 69| 6.4| 06 | 2.3| |22| |30.058| 58| 51| 80| 3.4| 10 | 1.1| +--+----+------+---+---+---+-----+----+----+HOURLY PRECIPITATION (Water Equivalent) April 2008: Portsmouth, Virginia - KPWR ---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | D| A.M. Hour Ending at | P.M. Hour Ending at |D a| | |a t+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+t e| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 |e ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- 01| | | | | | | | | | | | |0.05| | | | |0.01| | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | |0.01|0.01|0.01|0.09|03 04| |0.27|0.09|0.17| | | | | | | | | | | | | | | | | | | | |04 05| | | |0.16| | |0.03| | | | | | | |0.01|0.01|0.01|0.03|0.03|0.08|0.02| |0.01|0.02|05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| |0.03|0.02|0.04|0.05|0.04|0.03|0.04|0.02| | | | | | | | | | | | | | |0.01|06 07| | | | | | |0.01| | | | | | | | | | | | | | | | | |07 08| | | | | | | |0.01| | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | |0.01| | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | |0.07|0.09| | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | |0.01|0.03|13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | |0.03|0.03| | | |0.08|0.02|0.12|0.04| | | | |0.01| | |0.02|20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| |0.03| |0.13|0.07|0.11|0.14|0.02| |0.02|0.01|0.42|0.30|0.19|0.11|0.17|0.04|0.01|0.01| | | | |0.11|21 22| |0.21|0.28|0.08|0.17|0.04| |0.01| | | | |0.01| | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | |0.03|0.05| |0.01| |0.01|0.23|0.11|0.06|0.03|0.11|0.11|28 29| |0.05|0.01| | |0.04| | | | | |0.01| | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.59|0.40|0.58|0.29|0.23|0.21|0.11|0.05|0.02|0.01|0.43|0.48|0.26|0.24|0.23|0.12|0.15|0.27|0.19|0.10|0.04|0.14|0.39|Sum ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- During a frozen precipitation event, hourly precipitation totals may not be recorded. In this case, daily amounts are typically entered in the last column (hour ending at 12 A.M.)