LOCAL CLIMATOLOGICAL DATA Monthly Summary
PRELIMINARY September 2018
Station: KPWR Portsmouth, Virginia Latitude: 36° 59' 09" N Longitude: 76° 33' 00" W Elevation (ground): 13 feet Time Zone: Eastern +--+-------------------------------+----+---------+---------+--+-----------+--------------------+-----------------------------+------+ | | Temperature | |Deg. Days|Precip Ty| | Precip | Pressure | Wind |Solar | | +------+------+------+------+---+ Hu-+----+----+1 fog | S+-----+-----+ Adj. to Sea Level +----+----+---+-------+-------+------+ | | M | M | A | | |mid-| H | C |2 hvy fog| n| | Ice +------+------+------+ Avg| Res|Res| Peak |2Minute| Mean | | | a | i | v | | D | ity| e | o |3 thunder| o|Water| plts| | | | | | +---+---+---+---+ W | | | x | n | e | | e | | a | o |4 ice plt| w| | | | | | S | S | | S | | S | | a | | D| i | i | r | M | w | M | t | l |5 hail | | E | S | | | M | p | p | | p | | p | | t | | a| m | m | a | e | | e | i | i |6 glaze | C| q | n | M | M | e | e | e | D | e | D | e | D | t | | t| u | u | g | a | P | a | n | n |7 duststm| v| u | o | a | i | a | e | e | i | e | i | e | i | s | | 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 | m^2 | | | | | | | | | | |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| 90.6 | 71.7 | 81.1 | 77.7 | 75| 91| 0| 17|1.3......| 0| 0.02| 0.0| 30.20| 30.15|30.177| 0.0| 0.0| 0| 6| SE| 0| 0| | |02| 90.0 | 70.7 | 80.3 | 79.7 | 75| 87| 0| 16|.......8.| 0| 0.00| 0.0| 30.25| 30.17|30.202| 0.0| 0.0| 0| 10| NE| 0| 0| | |03| 92.1 | 73.9 | 83.0*| 81.3 | 77| 87| 0| 18|1......8.| 0| 0.00| 0.0| 30.27| 30.19|30.230| 0.0| 0.0| 0| 10| NW| 0| 0| | |04| 91.5 | 73.2 | 82.3 | 81.8 | 75| 83| 0| 18|1......8.| 0| 0.00| 0.0| 30.24| 30.16|30.202| 0.0| 0.0| 0| 14| NE| 0| 0| | |05| 92.4*| 71.9 | 82.2 | 81.2 | 75| 82| 0| 17|1......8.| 0| 0.00| 0.0| 30.23| 30.14|30.188| 0.0| 0.0| 0| 12| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 91.3 | 73.8 | 82.6 | 81.1 | 76| 85| 0| 18|.......8.| 0| 0.00| 0.0| 30.18| 30.08|30.139| 0.0| 0.0| 0| 14| SE| 0| 0| | |07| 91.8 | 73.6 | 82.7 | 81.0 | 76| 86| 0| 18|1......8.| 0| 0.02| 0.0| 30.11| 30.00|30.064| 0.0| 0.0| 0| 15| NE| 0| 0| | |08| 91.3 | 72.9 | 82.1 | 78.1 | 75| 91| 0| 17|1.3....8.| 0| 4.13| 0.0| 30.02| 29.89|29.961| 0.2| 0.2|315| 24| NW| 0| 0| | |09| 86.4 | 73.7 | 80.1 | 78.3 | 76| 94| 0| 15|1........| 0| 0.71| 0.0| 29.96| 29.86|29.914| 0.0| 0.0| 0| 11| NE| 0| 0| | |10| 88.6 | 72.5 | 80.6 | 79.6 | 76| 90| 0| 16|.........| 0| 0.00| 0.0| 30.03| 29.93|29.969| 0.0| 0.0| 0| 12|SSE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 90.5 | 74.5 | 82.5 | 80.6 | 78| 91| 0| 18|.........| 0| T | 0.0| 30.09| 30.00|30.051| 0.0| 0.0| 0| 17| SE| 0| 0| | |12| 88.6 | 75.1 | 81.8 | 81.0 | 77| 88| 0| 17|.........| 0| 0.00| 0.0| 30.14| 30.08|30.107| 0.0| 0.0| 0| 13| NE| 0| 0| | |13| 82.0 | 77.9 | 79.9 | 80.3 | 79| 94| 0| 15|.........| 0| 0.01| 0.0| 30.08| 29.94|30.013| 3.5| 3.5| 45| 32| NE| 0| 0| | |14| 85.6 | 74.4 | 80.0 | 79.7 | 77| 92| 0| 15|1........| 0| 0.15| 0.0| 30.01| 29.92|29.961| 0.5| 0.5| 45| 31| NE| 0| 0| | |15| 82.6 | 75.8 | 79.2 | 78.7 | 76| 93| 0| 15|1........| 0| 0.04| 0.0| 30.06| 29.97|30.019| 0.0| 0.0| 45| 21| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 85.1 | 76.2 | 80.6 | 79.4 | 76| 89| 0| 16|.........| 0| 0.00| 0.0| 30.10| 30.03|30.066| 0.0| 0.0| 0| 15| NE| 0| 0| | |17| 84.6 | 76.2 | 80.4 | 80.0 | 77| 91| 0| 16|.........| 0| T | 0.0| 30.07| 29.89|29.981| 0.0| 0.0| 0| 15|SSE| 0| 0| | |18| 88.4 | 74.8 | 81.6 | 81.1 | 76| 86| 0| 17|.........| 0| 0.02| 0.0| 29.89| 29.73|29.804| 0.0| 0.0| 0| 22|WNW| 0| 0| | |19| 85.4 | 72.8 | 79.1 | 78.3 | 73| 84| 0| 14|.........| 0| 0.00| 0.0| 30.01| 29.80|29.888| 0.0| 0.0| 0| 16| NE| 0| 0| | |20| 80.9 | 68.3 | 74.6 | 74.3 | 70| 86| 0| 10|.........| 0| 0.00| 0.0| 30.22| 30.01|30.126| 0.0| 0.0| 0| 6| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 83.9 | 63.3 | 73.6 | 73.4 | 68| 84| 0| 9|.........| 0| 0.00| 0.0| 30.23| 30.08|30.157| 0.0| 0.0| 0| 12|ESE| 0| 0| | |22| 84.8 | 68.0 | 76.4 | 76.0 | 72| 88| 0| 12|.........| 0| 0.00| 0.0| 30.10| 30.04|30.070| 0.0| 0.0| 0| 15| NE| 0| 0| | |23| 86.5 | 70.8 | 78.7 | 76.6 | 73| 90| 0| 14|1........| 0| 1.47| 0.0| 30.14| 30.05|30.090| 0.0| 0.0| 0| 14|NNW| 0| 0| | |24| 81.9 | 70.6 | 76.3 | 74.9 | 74| 96| 0| 12|1........| 0| 0.09| 0.0| 30.24| 30.14|30.191| 0.0| 0.0| 0| 10| S| 0| 0| | |25| 85.4 | 72.1 | 78.8 | 77.6 | 76| 94| 0| 14|1........| 0| 0.03| 0.0| 30.23| 30.09|30.164| 0.0| 0.0| 0| 15| S| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 86.9 | 74.0 | 80.4 | 79.2 | 76| 90| 0| 16|1........| 0| 0.00| 0.0| 30.06| 29.91|29.987| 0.0| 0.0| 0| 12|SSW| 0| 0| | |27| 77.8 | 72.4 | 75.1 | 75.4 | 74| 94| 0| 10|1........| 0| 0.11| 0.0| 30.06| 29.97|30.009| 0.0| 0.0| 0| 7| NE| 0| 0| | |28| 79.4 | 65.7 | 72.6 | 74.2 | 71| 91| 0| 8|.........| 0| 0.05| 0.0| 30.14| 29.94|30.043| 0.0| 0.0| 0| 17| NW| 0| 0| | |29| 79.4 | 60.2*| 69.8 | 69.4 | 64| 86| 0| 5|1........| 0| 0.00| 0.0| 30.24| 30.13|30.181| 0.0| 0.0| 0| 10|ENE| 0| 0| | |30| 78.9 | 60.5 | 69.7*| 69.0 | 63| 84| 0| 5|1........| 0| 0.00| 0.0| 30.31| 30.23|30.275| 0.0| 0.0| 0| 13|ENE| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2584.6|2151.5|------|------|---|----| 0| 428| Days | 6.85| 0.0| 30.31| 29.73|30.074| 0.1| 0.1| 42| 32| NE| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 86.2| 71.7| 78.9 | 78.0 | 74|88.8|----|----|≥.01 Inch 13|49.75| 0.0| 30 | 18 |------|----|----|---| 13 | 1+ | | +------+------+------+------+---+----+----+----+------------+-----+-----+------+------+------+----+----+---+-------+-------+------+ | | 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 | 0|2175|Thunder 2|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 0| 4.83| 8- 9| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 9 | 0 | 0 | 0 |----|----| Clear 12 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: Solar Radiation 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: SUN, SEP 30, 2018 September 2018 was the warmest September in the station database to 1976. The top five warmest Septembers include: 1) 79.0 2018 2) 76.0 1980 3) 75.8 2016 4) 75.7 1977 5) 75.6 1988

FROPA: 18,23,28
RECORDS:
11th - TEMPERATURE Maximum low 74 [previously 73 1985]
12th - TEMP Max low 75 [prev 74 1984]
13th - TEMP Max low 78 [prev 73 1988]
13th - WIND GUST NE 32mph [prev 27mpph 1988]
14th - WIND GUST NE 31mph [prev 26mph 2001]
16th - TEMP Max lo 76 [prev 74 2005]
17th - TEMP Max lo 76 [prev 74 1980]
25th - TEMP TIED Max lo 72 [prev 1980]
26th - TEMP Max lo 74 [prev 73 1993]
OBSERVATIONS AT 3-HOUR INTERVALS
September 2018: KPWR Portsmouth, Virginia
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 1 | SEP 2 | SEP 3 | | | | | |01| |30.17| 0.00| 72| 72| 99|00| 0| 0| |30.19| 0.00| 74| 73| 97|00| 0| 0| |30.22| 0.00| 77| 76| 97|00| 0| 0| |04| |30.16| 0.00| 72| 72|100|00| 0| 0| |30.17| 0.00| 72| 71| 98|00| 0| 0| |30.22| 0.00| 75| 74| 98|00| 0| 0| |07| |30.18| 0.00| 72| 72|100|00| 0| 0| |30.22| 0.00| 71| 70| 99|00| 0| 0| |30.25| 0.00| 74| 74| 99|00| 0| 0| |10| |30.20| 0.00| 81| 78| 93|06| 0| 4| |30.25| 0.00| 82| 76| 84|09| 0| 4| |30.27| 0.00| 83| 78| 87|06| 0| 5| |13| |30.19| 0.00| 90| 79| 70|15| 0| 5| |30.22| 0.00| 88| 77| 69|04| 0| 7| |30.24| 0.00| 89| 78| 69|31| 0| 10| |16| |30.15| 0.00| 83| 77| 82|06| 0| 6| |30.17| 0.00| 90| 78| 68|04| 0| 10| |30.19| 0.00| 90| 80| 71|15| 0| 6| |19| |30.18| 0.00| 78| 75| 89|00| 0| 0| |30.18| 0.00| 83| 77| 83|20| 0| 4| |30.19| 0.00| 85| 78| 79|11| 0| 5| |22| |30.19| 0.00| 75| 74| 94|06| 0| 4| |30.21| 0.00| 79| 77| 94|00| 0| 0| |30.24| 0.00| 79| 76| 90|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |01| |30.23| 0.00| 76| 75| 95|00| 0| 0| |30.19| 0.00| 76| 74| 93|00| 0| 0| |30.18| 0.00| 77| 75| 93|13| 0| 4| |04| |30.20| 0.00| 75| 74| 97|00| 0| 0| |30.18| 0.00| 74| 72| 96|00| 0| 0| |30.17| 0.00| 75| 74| 96|00| 0| 0| |07| |30.21| 0.00| 73| 73| 98|00| 0| 0| |30.22| 0.00| 72| 71| 98|00| 0| 0| |30.18| 0.00| 74| 74| 98|00| 0| 0| |10| |30.23| 0.00| 84| 79| 86|04| 0| 10| |30.23| 0.00| 82| 77| 84|04| 0| 6| |30.17| 0.00| 83| 78| 86|31| 0| 10| |13| |30.22| 0.00| 90| 77| 65|06| 0| 10| |30.21| 0.00| 89| 77| 67|04| 0| 6| |30.14| 0.00| 89| 77| 68|31| 0| 10| |16| |30.17| 0.00| 91| 76| 63|04| 0| 14| |30.16| 0.00| 90| 75| 62|04| 0| 12| |30.09| 0.00| 91| 79| 69|06| 0| 13| |19| |30.16| 0.00| 87| 75| 69|15| 0| 7| |30.15| 0.00| 87| 75| 69|02| 0| 6| |30.08| 0.00| 83| 78| 84|15| 0| 4| |22| |30.20| 0.00| 79| 75| 86|00| 0| 0| |30.19| 0.00| 80| 75| 86|04| 0| 4| |30.13| 0.00| 79| 76| 90|11| 0| 6| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |01| |30.11| 0.00| 77| 75| 95|00| 0| 0| |30.02| 0.00| 76| 75| 94|00| 0| 0| |29.94| 0.00| 75| 75|100|33| 0| 5| |04| |30.10| 0.00| 75| 74| 97|00| 0| 0| |29.99| 0.00| 75| 74| 97|00| 0| 0| |29.92| 0.07| 74| 74|100|02| 0| 4| |07| |30.10| 0.00| 74| 73| 98|00| 0| 0| |29.98| 0.00| 73| 72| 98|00| 0| 0| |29.92| 0.12| 74| 74|100|00| 0| 0| |10| |30.10| 0.00| 83| 78| 84|24| 0| 5| |29.98| 0.00| 81| 77| 88|27| 0| 7| |29.93| 0.00| 79| 79|100|00| 0| 0| |13| |30.07| 0.00| 90| 77| 64|06| 0| 11| |29.94| 0.00| 90| 79| 69|20| 0| 5| |29.91| 0.00| 85| 78| 79|06| 0| 4| |16| |30.02| 0.00| 86| 79| 81|18| 0| 6| |29.89| 0.01| 86| 80| 81|04| 0| 10| |29.86| 0.02| 84| 80| 87|18| 0| 5| |19| |30.00| 0.00| 85| 77| 76|13| 0| 10| |29.93| 0.21| 74| 73| 98|15| 0| 4| |29.88| 0.00| 78| 76| 91|04| 0| 7| |22| |30.03| 0.00| 79| 76| 90|00| 0| 0| |29.96| 0.00| 74| 74|100|00| 0| 0| |29.93| 0.00| 76| 74| 95|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |01| |29.95| 0.00| 74| 73| 98|00| 0| 0| |30.02| 0.00| 78| 77| 96|00| 0| 0| |30.08| 0.00| 78| 77| 98|00| 0| 0| |04| |29.94| 0.00| 74| 74| 99|00| 0| 0| |30.00| 0.00| 76| 75| 97|00| 0| 0| |30.09| 0.00| 77| 77| 99|00| 0| 0| |07| |29.95| 0.00| 73| 72| 99|00| 0| 0| |30.04| 0.00| 75| 74| 99|00| 0| 0| |30.12| 0.00| 75| 75|100|00| 0| 0| |10| |29.99| 0.00| 80| 77| 92|00| 0| 4| |30.07| 0.00| 82| 78| 90|13| 0| 5| |30.14| 0.00| 82| 78| 87|04| 0| 4| |13| |29.99| 0.00| 85| 79| 82|18| 0| 4| |30.07| 0.00| 89| 80| 75|06| 0| 4| |30.12| 0.00| 88| 78| 73|04| 0| 7| |16| |29.94| 0.00| 88| 80| 76|00| 0| 0| |30.04| 0.00| 84| 78| 82|15| 0| 6| |30.09| 0.00| 86| 77| 74|04| 0| 11| |19| |29.96| 0.00| 84| 79| 86|15| 0| 11| |30.06| 0.00| 82| 79| 90|00| 0| 0| |30.10| 0.00| 82| 77| 86|06| 0| 7| |22| |30.01| 0.00| 79| 77| 92|00| 0| 0| |30.09| 0.00| 79| 78| 95|00| 0| 0| |30.11| 0.00| 79| 77| 92|04| 0| 11| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |01| |30.08| 0.00| 78| 77| 96|02| 0| 4| |29.94| 0.00| 80| 78| 93|04| 4| 26| |29.99| 0.01| 77| 76| 98|06| 0| 13| |04| |30.05| 0.00| 79| 78| 96|04| 0| 4| |29.92| 0.00| 81| 78| 91|04| 0| 18| |29.97| 0.00| 78| 78| 97|06| 0| 12| |07| |30.05| 0.00| 80| 79| 95|04| 0| 16| |29.94| 0.00| 80| 77| 91|04| 0| 18| |30.01| 0.00| 77| 75| 95|02| 0| 16| |10| |30.06| 0.00| 81| 79| 95|04| 4| 24| |29.97| 0.00| 79| 77| 94|04| 0| 20| |30.03| 0.00| 78| 75| 89|04| 0| 4| |13| |30.02| 0.00| 82| 79| 93|04| 6| 25| |29.97| 0.00| 81| 79| 96|06| 0| 15| |30.03| 0.00| 82| 78| 86|04| 0| 11| |16| |29.98| 0.00| 81| 79| 94|04| 6| 30| |29.95| 0.00| 83| 79| 88|04| 0| 18| |30.02| 0.00| 81| 78| 90|04| 0| 19| |19| |29.96| 0.00| 81| 79| 94|04| 6| 28| |29.96| 0.00| 79| 76| 92|06| 0| 11| |30.04| 0.00| 79| 77| 92|04| 0| 19| |22| |29.96| 0.00| 80| 78| 94|04| 5| 30| |30.00| 0.04| 75| 73| 95|06| 0| 12| |30.06| 0.01| 77| 76| 96|04| 1| 19| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |01| |30.05| 0.00| 77| 76| 95|04| 0| 15| |30.07| 0.00| 77| 75| 93|13| 0| 4| |29.89| 0.00| 78| 77| 96|18| 0| 4| |04| |30.03| 0.00| 76| 75| 95|06| 0| 4| |30.04| 0.00| 76| 75| 96|09| 0| 4| |29.85| 0.00| 78| 77| 96|22| 0| 4| |07| |30.05| 0.00| 77| 75| 96|04| 0| 4| |30.03| 0.00| 76| 76| 98|00| 0| 0| |29.84| 0.00| 79| 77| 95|00| 0| 0| |10| |30.09| 0.00| 80| 77| 90|06| 0| 12| |30.03| 0.00| 81| 78| 90|15| 0| 7| |29.81| 0.00| 83| 79| 88|20| 0| 15| |13| |30.09| 0.00| 84| 77| 80|06| 0| 10| |30.00| 0.00| 83| 79| 87|11| 0| 5| |29.77| 0.00| 88| 78| 72|20| 0| 21| |16| |30.06| 0.00| 83| 76| 81|13| 0| 6| |29.93| 0.00| 84| 78| 83|15| 0| 15| |29.73| 0.00| 87| 75| 66|29| 0| 22| |19| |30.07| 0.00| 80| 75| 86|09| 0| 4| |29.90| 0.00| 82| 78| 86|15| 0| 6| |29.75| 0.00| 82| 74| 78|24| 0| 7| |22| |30.08| 0.00| 78| 75| 90|15| 0| 4| |29.92| 0.00| 79| 77| 94|13| 0| 10| |29.80| 0.01| 75| 73| 94|00| 0| 14| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.18 | 0.36 | 0.53 | 0.71 | 1.06 | 1.59 | 2.02 | 2.65 | 3.28 | 3.91 | 4.01 | 4.11 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | 08 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1604 | 1609 | 1614 | 1619 | 1629 | 1644 | 1700 | 1719 | 1739 | 1800 | 1828 | 1857 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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
September 2018: KPWR Portsmouth, Virginia
+--+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+----+-----+-----+---+---+---+----------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 | +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 19 | SEP 20 | SEP 21 | | | | | |01| |29.81| 0.00| 75| 73| 95|00| 0| 0| |30.02| 0.00| 73| 71| 94|00| 0| 0| |30.21| 0.00| 67| 66| 94|00| 0| 0| |04| |29.81| 0.00| 74| 72| 93|31| 0| 6| |30.01| 0.00| 70| 69| 96|00| 0| 0| |30.18| 0.00| 65| 64| 96|00| 0| 0| |07| |29.84| 0.00| 73| 70| 92|00| 0| 5| |30.08| 0.00| 69| 68| 98|00| 0| 0| |30.21| 0.00| 63| 63| 97|00| 0| 0| |10| |29.89| 0.00| 78| 73| 84|29| 0| 12| |30.15| 0.00| 77| 73| 86|04| 0| 6| |30.23| 0.00| 75| 69| 82|04| 0| 5| |13| |29.91| 0.00| 84| 74| 72|04| 0| 7| |30.17| 0.00| 80| 72| 75|04| 0| 5| |30.17| 0.00| 82| 70| 67|20| 0| 4| |16| |29.89| 0.00| 85| 75| 71|04| 0| 16| |30.15| 0.00| 80| 70| 72|04| 0| 5| |30.11| 0.00| 84| 72| 69|13| 0| 5| |19| |29.92| 0.00| 81| 74| 79|04| 0| 6| |30.16| 0.00| 76| 69| 79|04| 0| 4| |30.08| 0.00| 79| 71| 77|11| 0| 12| |22| |29.98| 0.00| 76| 71| 84|00| 0| 0| |30.19| 0.00| 70| 67| 89|02| 0| 4| |30.11| 0.00| 73| 69| 87|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |01| |30.09| 0.00| 70| 69| 94|00| 0| 0| |30.09| 0.00| 76| 74| 92|00| 0| 0| |30.14| 0.00| 71| 71|100|00| 0| 0| |04| |30.06| 0.00| 69| 68| 97|00| 0| 0| |30.07| 0.00| 75| 73| 93|00| 0| 0| |30.14| 0.00| 71| 71|100|00| 0| 0| |07| |30.08| 0.00| 68| 67| 98|00| 0| 0| |30.09| 0.00| 71| 70| 96|00| 0| 0| |30.18| 0.00| 71| 71|100|00| 0| 0| |10| |30.08| 0.00| 77| 72| 87|20| 0| 5| |30.11| 0.00| 78| 74| 87|13| 0| 4| |30.22| 0.00| 74| 74|100|00| 0| 0| |13| |30.06| 0.00| 84| 75| 75|04| 0| 15| |30.09| 0.00| 86| 75| 69|06| 0| 6| |30.22| 0.04| 79| 77| 93|06| 0| 5| |16| |30.04| 0.00| 83| 75| 78|06| 0| 7| |30.06| 0.00| 84| 74| 74|13| 0| 11| |30.18| 0.00| 79| 77| 92|06| 0| 4| |19| |30.06| 0.00| 79| 74| 84|04| 0| 7| |30.09| 0.02| 74| 73| 97|00| 0| 0| |30.20| 0.00| 77| 74| 91|04| 0| 4| |22| |30.09| 0.00| 78| 74| 90|04| 0| 4| |30.12| 0.00| 72| 72| 99|00| 0| 0| |30.23| 0.00| 75| 74| 95|04| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |01| |30.23| 0.00| 75| 74| 97|00| 0| 0| |30.06| 0.00| 75| 75|100|00| 0| 0| |29.98| 0.00| 76| 74| 92|27| 0| 6| |04| |30.19| 0.00| 74| 74| 99|00| 0| 0| |30.03| 0.00| 74| 74|100|00| 0| 0| |29.99| 0.05| 74| 73| 94|24| 0| 4| |07| |30.20| 0.00| 72| 72| 99|00| 0| 0| |30.01| 0.00| 75| 75|100|00| 0| 0| |30.03| 0.00| 73| 73| 98|00| 0| 0| |10| |30.22| 0.00| 80| 77| 91|18| 0| 4| |30.04| 0.00| 78| 78|100|00| 0| 0| |30.06| 0.00| 76| 73| 91|02| 0| 4| |13| |30.17| 0.00| 85| 80| 83|11| 0| 7| |29.98| 0.00| 85| 77| 79|20| 0| 7| |30.05| 0.00| 76| 74| 94|06| 0| 4| |16| |30.13| 0.00| 80| 78| 92|18| 0| 15| |29.93| 0.00| 87| 77| 72|22| 0| 10| |30.00| 0.00| 77| 74| 90|04| 0| 5| |19| |30.12| 0.01| 79| 77| 93|00| 0| 0| |29.92| 0.00| 83| 76| 80|22| 0| 4| |29.98| 0.00| 76| 73| 93|11| 0| 4| |22| |30.10| 0.00| 76| 75| 98|15| 0| 4| |29.96| 0.00| 78| 75| 92|22| 0| 4| |29.98| 0.00| 75| 75| 97|13| 0| 4| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 30 | | | | | |01| |29.97| 0.00| 76| 76| 99|22| 0| 4| |30.14| 0.00| 65| 63| 95|00| 0| 0| |30.23| 0.00| 64| 62| 94|00| 0| 0| |04| |29.95| 0.00| 76| 76| 99|20| 0| 6| |30.13| 0.00| 62| 61| 97|00| 0| 0| |30.23| 0.00| 62| 61| 96|00| 0| 0| |07| |29.99| 0.00| 75| 75| 99|00| 0| 0| |30.17| 0.00| 60| 60| 98|00| 0| 0| |30.27| 0.00| 61| 60| 97|00| 0| 0| |10| |30.04| 0.00| 78| 75| 90|29| 0| 7| |30.20| 0.00| 69| 69| 99|00| 0| 0| |30.31| 0.00| 72| 69| 89|06| 0| 7| |13| |30.07| 0.00| 73| 71| 91|31| 0| 17| |30.18| 0.00| 78| 67| 68|04| 0| 6| |30.30| 0.00| 77| 65| 66|06| 0| 6| |16| |30.06| 0.00| 75| 69| 81|04| 0| 4| |30.17| 0.00| 79| 67| 67|06| 0| 6| |30.28| 0.00| 77| 66| 68|06| 0| 5| |19| |30.09| 0.00| 73| 66| 80|00| 0| 0| |30.20| 0.00| 74| 66| 77|06| 0| 4| |30.27| 0.00| 73| 64| 73|13| 0| 4| |22| |30.13| 0.00| 69| 66| 91|00| 0| 0| |30.23| 0.00| 67| 64| 88|00| 0| 0| |30.29| 0.00| 66| 62| 88|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
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| |30.077| 75| 73| 96| 0.1| 05 | 0.1| |04| |30.060| 74| 73| 97| 0.0| 00 | 0.0| |07| |30.081| 73| 72| 98| 0.0| 00 | 0.0| |10| |30.103| 79| 76| 90| 0.1| 05 | 0.1| |13| |30.086| 84| 76| 77| 0.2| 05 | 0.2| |16| |30.047| 84| 76| 77| 0.2| 05 | 0.2| |19| |30.055| 80| 74| 84| 0.2| 05 | 0.2| |22| |30.084| 76| 73| 92| 0.2| 05 | 0.2| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
September 2018: KPWR Portsmouth, Virginia
---+-----------------------------------------------------------+-----------------------------------------------------------+--- | | | 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| | | | | | | | | | | | | | |0.02| | | | | | | | | |01 02| | | | | | | | | | | | | | | | | | | | | | | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | | | | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | | | | | | | | | | | | | | | | | | | | | | | |06 07| | | | | | | | | | | | | | |0.02| | | | | | | | | |07 08| | | | | | | | | | | | | | | |0.01|2.01|1.89|0.21| | | |0.01| |08 09| |0.37| |0.07|0.04|0.08|0.12|0.01| | | | | | | |0.02| | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | |0.01| | | | | | | | | |13 14| | | | | | | | |0.02| |0.02|0.07| | | | | | | | | |0.04| | |14 15|0.01| | | | |0.01| | |0.01| | | | | | | | | | | | |0.01| | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | | | | | |0.01|0.01| | |18 19| | | | | | | | | | | | | | | | | | | | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | |1.35|0.05|0.02|0.02|0.03| | | |23 24| | | | | | | | | | | |0.05|0.04| | | | | | | | | | | |24 25| | | | | | | | | | | | | | |0.01| | | |0.01| | | | |0.01|25 | | | | | | | | | | | | | | | | | | | | | | | | | 26| | | | | | | | | | | | | | | | | | | | | | | | |26 27| | | |0.05| | | |0.04|0.02| | | | | | | | | | | | | | | |27 28| | | | |0.05| | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.01|0.37|0.00|0.12|0.09|0.09|0.12|0.05|0.05|0.00|0.02|0.12|0.04|0.00|0.06|0.03|3.36|1.94|0.24|0.02|0.04|0.06|0.01|0.01|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.)