LOCAL CLIMATOLOGICAL DATA Monthly Summary
February 2011
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| 54.5 | 32.8 | 43.7 | 41.0 | 37| 87| 21| 0|1........| 0| 0.01| 0.0| 30.31| 30.05|30.202| 3.6| 2.3|309| 17| N| 0| 0| | |02| 70.7 | 44.4 | 57.5 | 59.9 | 52| 78| 7| 0|.........| 0| 0.11| 0.0| 30.15| 29.73|29.879| 8.5| 7.4|216| 33|SSW| 0| 0| | |03| 49.9 | 33.8 | 41.8 | 36.7 | 23| 59| 23| 0|.........| 0| 0.00| 0.0| 30.45| 30.20|30.375| 6.3| 4.9|350| 21| N| 0| 0| | |04| 40.0 | 34.3 | 37.2 | 37.3 | 27| 66| 28| 0|1........| 0| T | 0.0| 30.42| 30.08|30.309| 0.1| 0.1| 45| 10| NE| 0| 0| | |05| 55.3 | 37.9 | 46.6 | 45.6 | 44| 95| 18| 0|1.3......| 0| 1.09| 0.0| 30.06| 29.58|29.799| 5.0| 3.0|197| 34|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 48.6 | 32.8 | 40.7 | 41.3 | 35| 79| 24| 0|.........| 0| 0.00| 0.0| 30.09| 29.77|29.982| 3.2| 1.0| 14| 20| SW| 0| 0| | |07| 55.6 | 30.5 | 43.0 | 41.8 | 39| 89| 21| 0|1........| 0| 0.18| 0.0| 30.06| 29.70|29.936| 0.7| 0.5|154| 17|WSW| 0| 0| | |08| 49.3 | 31.9 | 40.6 | 42.9 | 33| 70| 24| 0|.........| 0| 0.02| 0.0| 30.27| 29.66|29.921| 8.3| 5.2|311| 26|WNW| 0| 0| | |09| 41.6 | 27.4 | 34.5 | 32.3 | 19| 59| 30| 0|........ 0.1| 0.03| 0.1| 30.40| 30.07|30.265| 4.6| 2.9| 27| 20| N| 0| 0| | |10| 33.6 | 22.2 | 27.9*| 29.9 | 23| 77| 37| 0|1....... 3.5| 0.30| 3.5| 30.24| 29.98|30.103| 4.4| 4.0| 13| 23| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 42.3 | 18.5*| 30.4 | 30.3 | 23| 76| 34| 0|.........| 2| 0.00| 0.0| 30.28| 30.07|30.178| 0.0| 0.0|158| 12|SSE| 0| 0| | |12| 51.9 | 23.8 | 37.8 | 37.5 | 25| 63| 27| 0|.........| T| 0.00| 0.0| 30.22| 30.01|30.079| 5.0| 5.0|248| 30|WSW| 0| 0| | |13| 55.7 | 28.5 | 42.1 | 42.8 | 29| 61| 22| 0|.........| 0| 0.00| 0.0| 30.26| 30.04|30.161| 4.9| 4.9|203| 23|SSW| 0| 0| | |14| 68.7 | 41.2 | 54.9 | 54.7 | 34| 48| 10| 0|.........| 0| 0.00| 0.0| 30.02| 29.66|29.838|10.3| 7.9|231| 37|SSW| 0| 0| | |15| 48.9 | 28.9 | 38.9 | 41.5 | 24| 51| 26| 0|.........| 0| 0.00| 0.0| 30.45| 30.05|30.333| 7.2| 6.2|347| 27| N| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 58.3 | 26.0 | 42.2 | 41.5 | 29| 64| 23| 0|.........| 0| 0.00| 0.0| 30.48| 30.29|30.385| 2.5| 2.5|203| 21|SSW| 0| 0| | |17| 70.4 | 40.2 | 55.3 | 54.6 | 48| 80| 10| 0|.........| 0| 0.00| 0.0| 30.29| 30.10|30.213| 4.6| 4.4|204| 27|SSW| 0| 0| | |18| 74.4 | 54.9 | 64.7*| 64.1 | 55| 73| 0| 0|.........| 0| 0.00| 0.0| 30.08| 29.89|29.978| 9.6| 8.9|228| 30|WSW| 0| 0| | |19| 66.3 | 48.5 | 57.4 | 58.1 | 27| 34| 7| 0|.........| 0| 0.00| 0.0| 30.16| 29.91|29.997|11.3|10.0|267| 38|WSW| 0| 0| | |20| 49.9 | 37.9 | 43.9 | 44.5 | 23| 42| 21| 0|.........| 0| 0.00| 0.0| 30.31| 30.05|30.207| 7.4| 6.4|340| 33| NW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 73.9 | 41.1 | 57.5 | 53.2 | 41| 65| 7| 0|.........| 0| 0.00| 0.0| 30.00| 29.63|29.777| 9.8| 3.9|187| 33|SSW| 0| 0| | |22| 41.1 | 32.7 | 36.9 | 34.8 | 29| 81| 28| 0|.........| 0| 0.01| 0.0| 30.26| 29.76|30.051| 9.5| 9.3| 41| 31| NE| 0| 0| | |23| 45.1 | 28.9 | 37.0 | 36.5 | 25| 66| 28| 0|.........| 0| 0.00| 0.0| 30.36| 30.26|30.321| 3.2| 2.6| 13| 17|NNW| 0| 0| | |24| 60.0 | 28.2 | 44.1 | 44.3 | 36| 74| 21| 0|.........| 0| 0.02| 0.0| 30.32| 29.95|30.198| 1.9| 1.7|190| 20|SSW| 0| 0| | |25| 73.5 | 41.0 | 57.3 | 60.9 | 51| 73| 7| 0|.........| 0| 0.05| 0.0| 30.14| 29.50|29.754|12.2| 7.7|235| 52|WNW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 55.6 | 37.0 | 46.3 | 43.7 | 34| 69| 18| 0|.........| 0| 0.00| 0.0| 30.27| 29.98|30.159| 3.8| 2.0| 90| 20| NE| 0| 0| | |27| 69.1 | 38.6 | 53.8 | 54.5 | 47| 77| 11| 0|.........| 0| 0.01| 0.0| 30.04| 29.95|29.998| 4.3| 1.6|205| 22|WSW| 0| 0| | |28| 78.1*| 50.0 | 64.1 | 64.1 | 57| 78| 1| 0|.........| 0| 0.75| 0.0| 29.96| 29.69|29.833| 7.4| 6.2|208| 37|SSW| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |1582.3| 973.9|------|------|---|----| 534| 0| Days | 2.58| 3.6| 30.48| 29.50|30.080| 5.7| 1.7|253| 52|WNW| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|-0.56" or 82% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 56.6| 34.7| 45.6 | 45.4 | 35|69.0|----|----|>.01 Inch 12| 5.80| 19.0| 16 | 25 |------|----|----|---| 25 | 1+ | | + +4.8 +1.2 +2.9 +------+---+----+----+----+------------|-1.03" or 85% of normal +------+----+----+---+-------+-------+------+ | | Season |Snow, Ice | | | | Number of Days | to Date |>1.0 Inch 1| Greatest in 24 Hours and Dates | Greatest Depth on Ground | +------------------+-----------------+----+----+------------+--------------+-----------------+ of Snow, Ice Pellets or Ice | | Max Temperature | Min Temperature |2968| 0|Thunder 1|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | >90°F | <32°F | <32°F | <0°F |----|----|Heavy Fog 0| 1.09| 5 | 3.5 | 10 | 3.6 | 9-10 | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 11 | 0 |----|----| Clear 10 Partly Cloudy 12 Cloudy 6 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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:
    COLD FROPA (except where noted): 1st (WARMFROPA), 2nd, 5th, 8th, 10th,14th,19th,21st,24th(warmfrop)
FROST: 11th, 12th,13th,16th,23rd,24th
STATION RECORDS:
10TH - SNOWFALL TIED 3.5" [previous 1980]
18TH - TEMPERATURE Maximum Minimum 55 [previous 51 1998]
25TH - WIND GUST 52mph [previous 47mph 1990]
25TH - TEMPERATURE TIED Maximum 74 [previous 2000]
28TH - TEMPERATURE Maximum 78 [previous 74 1981] MONTHLY AVERAGE MAXIMUM TEMP OF 56.6 WAS 4.8 ABOVE NORMAL. MONTHLY AVERAGE MINIMUM TEMP OF 34.7 WAS 1.2 ABOVE NORMAL. MONTHLY AVERAGE TEMP OF 45.6 WAS 2.9 ABOVE NORMAL. MAXIMUM TEMP: 78 ON THE 28TH MINIMUM TEMP: 18 ON THE 11TH DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 0 MINIMUM <= 32: 11 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 542.0 COOLING DEGREE DAYS: 0.0 DAYS WITH HEATING DEGREE DAYS: 28 DAYS WITH COOLING DEGREE DAYS: 0 PRECIP TOTAL OF 2.58" WAS 0.56" BELOW NORMAL ( 82% OF NORMAL). GREATEST DAILY RAINFALL: 1.09" ON THE 5TH GREATEST 24-HOUR RAINFALL: 1.09 ON THE 5TH DAYS WITH MEASUREABLE PRECIP: 12 OR 42.86% AVERAGE DAILY PRECIP: 0.10" NORMAL DAILY PRECIP: 0.12" DAYS WITH PRECIP >= 0.01" 12 DAYS WITH PRECIP >= 0.10" 5 DAYS WITH PRECIP >= 0.50" 2 DAYS WITH PRECIP >= 1.00" 1 DAYS WITH THUNDERSTORMS: 1 NUMBER OF THUNDERSTORMS: 1 DAYS WITH SNOW: 02 SNOWFALL TOTAL: 3.6" SEASONAL SNOWFALL 2010-2011: 19.0" CLOUDY DAYS: 6 PARTLY CLOUDY DAYS: 12 SUNNY/CLEAR DAYS: 10 DAYS WITH F/GF: 5 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 6 YEAR-TO-DATE YEARLY AVERAGE MAXIMUM TEMP OF 49.4 WAS 0.7 BELOW NORMAL. YEARLY AVERAGE MINIMUM TEMP OF 31.3 WAS 1.3 BELOW NORMAL. YEARLY AVERAGE TEMP OF 40.4 WAS 1.0 BELOW NORMAL. MAXIMUM TEMP: 78 ON FEBRUARY 28TH MINIMUM TEMP: 15 ON JANUARY 23RD DAYS WITH TEMPERATURES: MAXIMUM >= 90: 0 MAXIMUM <= 32: 1 MINIMUM <= 32: 34 MINIMUM <= 0: 0 HEATING DEGREE DAYS: 1454.0 COOLING DEGREE DAYS: 0.0 DAYS WITH HEATING DEGREE DAYS: 59 DAYS WITH COOLING DEGREE DAYS: 0 PRECIP TOTAL OF 5.80" WAS 1.03" BELOW NORMAL ( 85% OF NORMAL ). GREATEST DAILY RAINFALL: 1.09" ON FEBRUARY 5TH GREATEST 24-HOUR RAINFALL: 1.64" ON JANUARY 17TH-18TH DAYS WITH MEASUREABLE PRECIP: 22 OF 59 OR 37.29% AVERAGE DAILY PRECIP: 0.10" NORMAL DAILY PRECIP: 0.12" DAYS WITH PRECIP >= 0.01" 22 DAYS WITH PRECIP >= 0.10" 10 DAYS WITH PRECIP >= 0.50" 5 DAYS WITH PRECIP >= 1.00" 2 DAYS WITH THUNDERSTORMS: 1 NUMBER OF THUNDERSTORMS: 1 DAYS WITH SNOW (calendar year 2011): 5 SNOWFALL TOTAL (calendar year 2011): 3.6" SEASONAL SNOW 2010-2011 (beginning December 2010): 19.0" CLOUDY DAYS: 15 PARTLY CLOUDY DAYS: 26 SUNNY/CLEAR DAYS: 18 DAYS WITH F/GF: 18 DAYS WITH DENSE FOG: 0 DAYS WITH FROST: 17
OBSERVATIONS AT 3-HOUR INTERVALS
February 2011: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 1 | FEB 2 | FEB 3 | | | | | |01| |30.31| 0.00| 34| 31| 90|00| 6| 15| |30.00| 0.00| 45| 43| 94|13| 0| 10| |30.20| 0.00| 42| 31| 65|04| 6| 16| |04| |30.26| 0.00| 33| 31| 92|00| 5| 14| |29.91| 0.06| 49| 48| 97|15| 0| 10| |30.27| 0.00| 37| 26| 64|00| 5| 17| |07| |30.27| 0.00| 33| 32| 95|31| 5| 14| |29.82| 0.00| 60| 59| 98|20| 10| 24| |30.36| 0.00| 34| 21| 58|00| 7| 17| |10| |30.27| 0.00| 34| 33| 96|31| 5| 11| |29.80| 0.00| 64| 62| 95|20| 7| 28| |30.43| 0.00| 36| 21| 54|00| 11| 21| |13| |30.18| 0.00| 46| 40| 79|29| 4| 14| |29.73| 0.00| 70| 65| 84|20| 13| 33| |30.41| 0.00| 37| 21| 52|31| 10| 19| |16| |30.15| 0.00| 54| 46| 73|20| 4| 10| |29.79| 0.00| 69| 54| 57|20| 13| 30| |30.39| 0.00| 38| 21| 50|31| 7| 16| |19| |30.13| 0.00| 48| 43| 83|15| 0| 7| |29.93| 0.00| 61| 45| 54|20| 6| 18| |30.43| 0.00| 35| 24| 62|04| 4| 10| |22| |30.12| 0.00| 43| 40| 90|13| 0| 10| |30.05| 0.00| 57| 35| 44|29| 7| 22| |30.44| 0.00| 35| 24| 64|06| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 4 | FEB 5 | FEB 6 | | | | | |01| |30.42| 0.00| 35| 26| 69|04| 0| 4| |30.06| 0.00| 39| 35| 85|02| 0| 10| |29.77| 0.00| 46| 43| 90|22| 7| 20| |04| |30.39| 0.00| 35| 27| 72|04| 0| 5| |29.98| 0.00| 38| 36| 94|04| 4| 10| |29.87| 0.00| 41| 39| 90|24| 5| 16| |07| |30.41| 0.00| 35| 26| 70|04| 0| 4| |29.91| 0.00| 40| 39| 96|04| 0| 6| |29.95| 0.00| 36| 34| 90|33| 0| 7| |10| |30.37| 0.00| 39| 27| 63|13| 0| 7| |29.86| 0.36| 43| 42| 97|29| 0| 10| |30.03| 0.00| 43| 34| 70|04| 7| 17| |13| |30.30| 0.00| 40| 27| 60|09| 0| 7| |29.72| 0.17| 52| 51| 98|13| 0| 12| |30.01| 0.00| 44| 33| 65|00| 5| 14| |16| |30.25| 0.00| 40| 28| 61|04| 0| 6| |29.58| 0.00| 55| 54| 98|20| 6| 18| |30.01| 0.00| 49| 35| 60|04| 4| 11| |19| |30.22| 0.00| 39| 27| 63|11| 0| 6| |29.68| 0.00| 51| 49| 94|20| 13| 34| |30.04| 0.00| 39| 32| 76|11| 0| 11| |22| |30.17| 0.00| 37| 31| 76|11| 0| 10| |29.72| 0.00| 47| 45| 92|20| 11| 24| |30.09| 0.00| 34| 31| 89|15| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 7 | FEB 8 | FEB 9 | | | | | |01| |30.06| 0.00| 33| 31| 93|15| 0| 5| |29.67| 0.01| 44| 43| 96|20| 0| 10| |30.30| 0.00| 31| 19| 60|00| 10| 20| |04| |30.04| 0.00| 31| 29| 94|00| 0| 0| |29.66| 0.00| 43| 42| 96|20| 6| 15| |30.33| 0.00| 28| 17| 61|00| 5| 14| |07| |30.06| 0.00| 32| 31| 96|15| 0| 5| |29.76| 0.00| 40| 39| 94|24| 7| 19| |30.37| 0.00| 28| 14| 56|04| 6| 16| |10| |30.02| 0.00| 41| 41| 97|13| 0| 7| |29.89| 0.00| 45| 37| 73|31| 12| 25| |30.39| 0.00| 30| 15| 53|04| 5| 8| |13| |29.94| 0.00| 53| 46| 78|13| 4| 15| |29.91| 0.00| 48| 34| 59|00| 11| 20| |30.28| 0.00| 37| 18| 45|13| 4| 12| |16| |29.86| 0.00| 52| 45| 75|20| 0| 11| |29.97| 0.00| 48| 28| 45|31| 11| 22| |30.20| 0.00| 37| 21| 52|00| 6| 15| |19| |29.78| 0.01| 48| 44| 88|13| 0| 6| |30.14| 0.00| 40| 22| 48|31| 6| 20| |30.15| 0.00| 34| 24| 67|11| 0| 10| |22| |29.76| 0.01| 45| 44| 96|24| 4| 17| |30.24| 0.00| 36| 18| 46|31| 7| 20| |30.12| 0.00| 34| 29| 82|15| 0| 5| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 10 | FEB 11 | FEB 12 | | | | | |01| |30.02| 0.03| 31| 29| 94|00| 0| 7| |30.24| 0.00| 22| 18| 85|06| 0| 4| |30.06| 0.00| 26| 23| 90|00| 0| 0| |04| |30.03| 0.06| 30| 28| 94|00| 5| 14| |30.21| 0.00| 20| 17| 87|00| 0| 0| |30.05| 0.00| 25| 23| 92|06| 0| 4| |07| |30.04| 0.01| 30| 28| 93|04| 4| 7| |30.25| 0.00| 19| 16| 90|00| 0| 0| |30.08| 0.00| 25| 22| 90|13| 0| 6| |10| |30.09| 0.00| 30| 21| 69|00| 10| 18| |30.27| 0.00| 32| 26| 78|18| 0| 7| |30.09| 0.00| 39| 22| 50|24| 10| 21| |13| |30.12| 0.00| 32| 19| 58|00| 11| 22| |30.19| 0.00| 40| 27| 60|15| 0| 10| |30.03| 0.00| 48| 28| 45|24| 13| 30| |16| |30.12| 0.00| 33| 20| 57|04| 5| 15| |30.11| 0.00| 42| 25| 51|13| 0| 11| |30.03| 0.00| 52| 28| 40|24| 12| 27| |19| |30.17| 0.00| 29| 20| 70|06| 0| 10| |30.11| 0.00| 37| 28| 69|06| 0| 7| |30.11| 0.00| 44| 27| 50|24| 4| 11| |22| |30.23| 0.00| 24| 20| 83|00| 0| 0| |30.08| 0.00| 30| 26| 82|06| 0| 5| |30.19| 0.00| 41| 25| 53|24| 4| 12| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 13 | FEB 14 | FEB 15 | | | | | |01| |30.22| 0.00| 33| 25| 72|04| 0| 5| |30.01| 0.00| 48| 31| 53|20| 11| 20| |30.05| 0.00| 48| 31| 52|31| 11| 25| |04| |30.22| 0.00| 32| 25| 78|00| 0| 0| |29.95| 0.00| 41| 30| 63|18| 0| 11| |30.16| 0.00| 44| 28| 55|31| 6| 23| |07| |30.25| 0.00| 29| 24| 84|00| 0| 0| |29.89| 0.00| 43| 32| 63|20| 7| 18| |30.30| 0.00| 40| 27| 61|33| 6| 19| |10| |30.25| 0.00| 43| 33| 67|20| 4| 15| |29.83| 0.00| 54| 36| 52|20| 11| 22| |30.39| 0.00| 42| 20| 41|33| 13| 24| |13| |30.15| 0.00| 52| 33| 47|20| 10| 20| |29.69| 0.00| 66| 40| 38|20| 14| 32| |30.38| 0.00| 46| 18| 33|00| 12| 23| |16| |30.08| 0.00| 55| 33| 42|20| 11| 22| |29.67| 0.00| 69| 38| 32|24| 14| 31| |30.39| 0.00| 44| 22| 41|04| 7| 17| |19| |30.08| 0.00| 49| 31| 50|20| 5| 16| |29.77| 0.00| 62| 31| 32|24| 10| 21| |30.45| 0.00| 37| 22| 54|06| 0| 6| |22| |30.07| 0.00| 49| 31| 50|20| 10| 21| |29.95| 0.00| 53| 33| 47|29| 13| 27| |30.44| 0.00| 31| 22| 71|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 16 | FEB 17 | FEB 18 | | | | | |01| |30.45| 0.00| 28| 22| 78|00| 0| 0| |30.29| 0.00| 43| 41| 90|20| 4| 11| |30.08| 0.00| 57| 53| 86|20| 10| 19| |04| |30.44| 0.00| 27| 23| 84|00| 0| 0| |30.27| 0.00| 41| 39| 93|20| 0| 5| |30.05| 0.00| 55| 53| 93|20| 7| 21| |07| |30.47| 0.00| 26| 23| 87|00| 0| 0| |30.28| 0.00| 42| 41| 96|18| 0| 11| |30.05| 0.00| 56| 54| 93|20| 10| 20| |10| |30.46| 0.00| 43| 34| 69|20| 4| 16| |30.28| 0.00| 56| 52| 86|20| 6| 16| |30.02| 0.00| 64| 56| 77|20| 10| 20| |13| |30.39| 0.00| 55| 29| 37|20| 6| 18| |30.19| 0.00| 69| 56| 62|20| 10| 24| |29.93| 0.00| 72| 56| 56|24| 13| 28| |16| |30.31| 0.00| 57| 31| 36|20| 6| 18| |30.15| 0.00| 68| 54| 61|20| 7| 19| |29.89| 0.00| 74| 57| 54|24| 11| 25| |19| |30.30| 0.00| 49| 32| 51|18| 0| 10| |30.14| 0.00| 61| 52| 73|20| 0| 12| |29.91| 0.00| 67| 54| 64|20| 4| 12| |22| |30.29| 0.00| 45| 37| 75|20| 4| 11| |30.12| 0.00| 57| 51| 82|20| 4| 11| |29.94| 0.00| 67| 53| 60|24| 11| 22| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.04 | 0.07 | 0.10 | 0.13 | 0.19 | 0.28 | 0.37 | 0.46 | 0.56 | 0.66 | 0.75 | 0.85 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | 05 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 0905 | 0910 | 0915 | 0920 | 0930 | 0945 | 1000 | 1018 | 1039 | 1100 | 1128 | 1200 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
February 2011: 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 19 | FEB 20 | FEB 21 | | | | | |01| |29.95| 0.00| 59| 49| 68|24| 5| 15| |30.18| 0.00| 47| 21| 36|31| 13| 26| |30.00| 0.00| 46| 33| 62|15| 4| 14| |04| |29.99| 0.00| 55| 38| 52|24| 6| 15| |30.20| 0.00| 43| 20| 40|31| 13| 33| |29.89| 0.00| 46| 34| 61|20| 6| 17| |07| |30.03| 0.00| 51| 26| 38|24| 10| 20| |30.26| 0.00| 38| 20| 47|00| 11| 24| |29.81| 0.00| 48| 39| 70|20| 10| 19| |10| |30.01| 0.00| 58| 22| 25|24| 13| 28| |30.30| 0.00| 40| 22| 48|00| 11| 20| |29.73| 0.00| 61| 49| 65|20| 13| 27| |13| |29.94| 0.00| 63| 23| 22|24| 17| 38| |30.24| 0.00| 47| 24| 41|33| 10| 19| |29.67| 0.00| 72| 54| 53|20| 12| 33| |16| |29.91| 0.00| 66| 24| 20|24| 15| 34| |30.18| 0.00| 49| 23| 35|06| 5| 12| |29.67| 0.00| 58| 39| 49|24| 10| 29| |19| |30.00| 0.00| 59| 20| 22|29| 10| 30| |30.14| 0.00| 47| 22| 37|13| 0| 7| |29.76| 0.00| 46| 39| 77|04| 11| 25| |22| |30.11| 0.00| 53| 21| 29|31| 14| 28| |30.10| 0.00| 45| 29| 53|13| 4| 14| |29.78| 0.00| 42| 36| 82|06| 11| 22| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 22 | FEB 23 | FEB 24 | | | | | |01| |29.76| 0.00| 40| 36| 85|04| 13| 23| |30.26| 0.00| 33| 27| 80|31| 4| 7| |30.32| 0.00| 30| 27| 88|00| 0| 0| |04| |29.85| 0.01| 35| 31| 87|04| 12| 26| |30.28| 0.00| 29| 26| 87|00| 0| 0| |30.30| 0.00| 29| 26| 91|04| 0| 4| |07| |29.97| 0.00| 35| 30| 84|04| 12| 26| |30.33| 0.00| 32| 27| 83|33| 4| 10| |30.29| 0.00| 29| 27| 93|00| 0| 0| |10| |30.05| 0.00| 34| 30| 83|04| 11| 19| |30.35| 0.00| 39| 27| 62|00| 7| 16| |30.28| 0.00| 47| 36| 67|13| 0| 11| |13| |30.10| 0.00| 35| 28| 77|00| 11| 23| |30.34| 0.00| 43| 26| 51|00| 6| 16| |30.19| 0.00| 59| 41| 51|20| 4| 14| |16| |30.15| 0.00| 34| 27| 75|04| 10| 18| |30.31| 0.00| 45| 21| 38|04| 6| 15| |30.13| 0.00| 59| 42| 52|20| 5| 20| |19| |30.20| 0.00| 33| 27| 79|04| 5| 14| |30.33| 0.00| 38| 24| 56|04| 0| 6| |30.08| 0.01| 52| 44| 72|18| 0| 7| |22| |30.22| 0.00| 33| 27| 79|04| 4| 12| |30.34| 0.00| 32| 27| 79|00| 0| 0| |30.02| 0.00| 49| 43| 77|13| 4| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 25 | FEB 26 | FEB 27 | | | | | |01| |29.93| 0.00| 55| 53| 90|18| 5| 15| |30.20| 0.00| 40| 29| 64|00| 6| 17| |29.97| 0.00| 41| 38| 92|20| 4| 11| |04| |29.80| 0.02| 58| 57| 96|20| 7| 22| |30.19| 0.00| 39| 27| 64|04| 6| 20| |29.96| 0.00| 46| 44| 93|20| 6| 18| |07| |29.71| 0.00| 61| 59| 93|20| 10| 22| |30.24| 0.00| 38| 29| 69|04| 4| 11| |29.99| 0.00| 46| 45| 94|20| 4| 11| |10| |29.62| 0.00| 65| 62| 88|20| 12| 36| |30.26| 0.00| 44| 31| 61|06| 4| 12| |30.03| 0.00| 59| 50| 70|20| 6| 18| |13| |29.51| 0.00| 71| 60| 68|20| 15| 37| |30.19| 0.00| 52| 38| 60|13| 4| 13| |30.00| 0.00| 64| 50| 60|00| 6| 17| |16| |29.55| 0.00| 73| 55| 54|24| 16| 40| |30.09| 0.00| 53| 40| 61|13| 4| 15| |29.99| 0.00| 65| 50| 60|04| 6| 15| |19| |29.88| 0.00| 57| 34| 43|29| 16| 35| |30.08| 0.00| 44| 38| 77|15| 4| 14| |30.01| 0.00| 55| 45| 69|13| 0| 6| |22| |30.08| 0.00| 46| 30| 52|00| 11| 22| |30.03| 0.00| 40| 36| 87|00| 0| 0| |30.03| 0.00| 54| 49| 85|13| 0| 7| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | FEB 28 | | | | | | | |01| |29.96| 0.00| 56| 52| 87|13| 0| 6| | | |04| |29.93| 0.00| 56| 51| 84|20| 4| 11| | | |07| |29.89| 0.00| 57| 52| 83|20| 5| 18| | | |10| |29.90| 0.00| 70| 61| 73|20| 12| 28| | | |13| |29.78| 0.00| 76| 63| 65|20| 15| 35| | | |16| |29.69| 0.00| 78| 62| 57|20| 12| 27| | | |19| |29.78| 0.00| 62| 56| 81|00| 7| 25| | | |22| |29.75| 0.14| 57| 57| 97|15| 0| 12| | | +--+----+-----+-----+---+---+---+--+---+---+---------------------------------------+---------------------------------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
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| |30.059| 43| 37| 81| 3.6| 30 | 0.9| |04| |30.048| 41| 36| 82| 3.5| 28 | 0.8| |07| |30.062| 41| 36| 82| 4.3| 24 | 1.1| |10| |30.070| 49| 39| 72| 6.9| 25 | 2.0| |13| |30.010| 55| 41| 61| 8.2| 24 | 3.5| |16| |29.977| 56| 40| 57| 7.2| 23 | 3.3| |19| |30.019| 49| 38| 67| 3.6| 29 | 1.2| |22| |30.038| 46| 37| 75| 3.7| 27 | 1.3| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
February 2011: 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| | | | | | | | | | | | | | | | | | | | | | | |0.01|01 02| | | | |0.06|0.02| | | | | |0.03| | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | |0.01|0.04|0.36|0.29|0.19|0.17|0.02| | |0.01| | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | | | | | | |0.01|0.05|0.08|0.01|0.03|07 08| |0.01| | | | |0.01| | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | |0.03|09 10| |0.03|0.07|0.07|0.06|0.04|0.02|0.01| | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | | | | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | | | | | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | |0.01| | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | |0.01| |0.01| | |24 25| | | |0.01|0.02| | | | | | |0.02| | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | |0.01|27 28| | | | | | | | | | | | | | | | | | | | |0.24|0.24|0.14|0.13|28 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum| |0.04|0.07|0.08|0.15|0.06|0.03|0.01|0.01|0.04|0.36|0.34|0.19|0.17|0.02|0.00|0.00|0.01|0.00|0.02|0.29|0.33|0.15|0.21|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.)