LOCAL CLIMATOLOGICAL DATA Monthly Summary
Preliminary September 2017
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| 74.9 | 61.2 | 68.1 | 69.8 | 65| 86| 0| 3|.........| 0| 0.28| 0.0| 30.11| 29.94|30.050| 3.1| 3.1| 45| 24| NE| 0| 0| | |02| 80.4 | 63.1 | 71.8 | 72.3 | 72| 97| 0| 7|1........| 0| 0.72| 0.0| 30.06| 29.97|30.010| 0.0| 0.0| 0| 13|NNE| 0| 0| | |03| 78.3 | 66.3 | 72.3 | 72.7 | 68| 86| 0| 7|1........| 0| 0.00| 0.0| 30.02| 29.93|29.974| 0.0| 0.0| 0| 16| W| 0| 0| | |04| 83.8 | 60.9 | 72.4 | 72.4 | 65| 79| 0| 8|.........| 0| 0.00| 0.0| 30.06| 29.93|30.003| 0.0| 0.0| 0| 16| W| 0| 0| | |05| 87.8*| 68.4 | 78.1 | 77.3 | 72| 86| 0| 13|.........| 0| 0.08| 0.0| 29.94| 29.79|29.878| 1.0| 0.9|201| 24|SSW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |06| 84.9 | 65.7 | 75.3 | 73.7 | 70| 90| 0| 11|..3......| 0| 0.38| 0.0| 29.91| 29.79|29.843| 0.3| 0.3| 0| 26| N| 0| 0| | |07| 75.3 | 60.7 | 68.0 | 67.6 | 61| 81| 0| 3|.........| 0| 0.02| 0.0| 30.10| 29.91|29.991| 0.0| 0.0| 0| 15| W| 0| 0| | |08| 76.2 | 55.4*| 65.8 | 65.8 | 56| 73| 0| 1|.........| 0| 0.00| 0.0| 30.18| 30.10|30.146| 0.3| 0.1| 0| 18|ENE| 0| 0| | |09| 72.8 | 56.6 | 64.7 | 65.8 | 56| 72| 0| 0|.........| 0| 0.00| 0.0| 30.26| 30.16|30.220| 2.5| 2.4| 48| 24| NE| 0| 0| | |10| 71.0 | 61.7 | 66.3 | 66.9 | 57| 69| 0| 2|.........| 0| 0.00| 0.0| 30.33| 30.24|30.288| 2.5| 2.3| 44| 22| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |11| 73.9 | 59.9 | 66.9 | 68.6 | 60| 73| 0| 2|.........| 0| 0.00| 0.0| 30.27| 30.06|30.177| 1.8| 1.8| 45| 25| NE| 0| 0| | |12| 77.7 | 68.5 | 73.1 | 72.5 | 67| 83| 0| 9|.........| 0| T | 0.0| 30.05| 29.89|29.957| 0.0| 0.0| 0| 15| NE| 0| 0| | |13| 85.1 | 71.6 | 78.3 | 77.3 | 71| 81| 0| 14|.........| 0| 0.00| 0.0| 29.92| 29.85|29.882| 0.0| 0.0| 0| 15|SSW| 0| 0| | |14| 83.2 | 67.9 | 75.6 | 74.6 | 71| 88| 0| 11|1........| 0| 0.31| 0.0| 29.97| 29.89|29.926| 0.2| 0.2|270| 23| W| 0| 0| | |15| 83.1 | 70.5 | 76.8 | 76.3 | 71| 85| 0| 12|12.......| 0| 0.00| 0.0| 30.08| 29.96|30.020| 0.0| 0.0| 0| 7|ENE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |16| 82.9 | 69.4 | 76.2 | 75.7 | 71| 85| 0| 11|1........| 0| 0.00| 0.0| 30.11| 30.06|30.082| 0.0| 0.0| 0| 17| NE| 0| 0| | |17| 78.6 | 70.4 | 74.5 | 74.5 | 71| 89| 0| 10|.........| 0| 0.00| 0.0| 30.08| 30.02|30.053| 0.5| 0.5| 45| 17| NE| 0| 0| | |18| 78.9 | 72.5 | 75.7 | 75.2 | 72| 89| 0| 11|.........| 0| 0.02| 0.0| 30.01| 29.91|29.959| 3.0| 3.0| 45| 24| NE| 0| 0| | |19| 76.4 | 71.1 | 73.8 | 73.0 | 70| 92| 0| 9|.........| 0| 0.20| 0.0| 29.89| 29.84|29.857| 3.0| 2.8|326| 25|NNW| 0| 0| | |20| 85.0 | 68.7 | 76.8 | 75.7 | 69| 80| 0| 12|.........| 0| 0.00| 0.0| 29.97| 29.86|29.914| 0.0| 0.0| 0| 19|WNW| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |21| 85.2 | 64.2 | 74.7 | 74.8 | 68| 80| 0| 10|.......8.| 0| 0.00| 0.0| 30.03| 29.95|29.989| 0.0| 0.0| 0| 16|ENE| 0| 0| | |22| 84.4 | 65.6 | 75.0 | 73.9 | 68| 83| 0| 10|.........| 0| 0.00| 0.0| 30.04| 29.96|30.001| 0.0| 0.0| 0| 16| W| 0| 0| | |23| 81.7 | 63.8 | 72.8 | 73.3 | 67| 83| 0| 8|1........| 0| 0.00| 0.0| 30.05| 29.98|30.017| 0.0| 0.0| 0| 18|ENE| 0| 0| | |24| 83.9 | 65.4 | 74.7 | 74.3 | 66| 79| 0| 10|.........| 0| 0.00| 0.0| 30.04| 29.98|30.015| 0.0| 0.0| 0| 16| NE| 0| 0| | |25| 77.7 | 66.4 | 72.1 | 72.3 | 69| 90| 0| 7|1........| 0| 0.00| 0.0| 29.99| 29.91|29.957| 2.6| 2.6| 45| 21| NE| 0| 0| | | | | | | | | | | | | | | | | | | | | | | | | | | |26| 76.1 | 71.6 | 73.8 | 73.9 | 73| 98| 0| 9|1........| 0| 0.46| 0.0| 29.90| 29.76|29.842| 2.6| 2.6| 46| 36| NE| 0| 0| | |27| 83.5 | 75.2 | 79.3*| 78.5 | 75| 89| 0| 15|.........| 0| 0.00| 0.0| 29.76| 29.68|29.713| 6.0| 5.5|339| 32|NNW| 0| 0| | |28| 85.3 | 71.7 | 78.5 | 78.1 | 67| 70| 0| 14|.........| 0| 0.00| 0.0| 29.94| 29.70|29.804| 3.1| 2.2|349| 22| NW| 0| 0| | |29| 74.0 | 61.0 | 67.5 | 69.3 | 57| 65| 0| 3|.........| 0| 0.00| 0.0| 30.09| 29.95|30.041| 2.3| 2.3| 45| 21| NE| 0| 0| | |30| 70.9 | 56.8 | 63.8*| 64.1 | 54| 71| 1| 0|.........| 0| 0.00| 0.0| 30.26| 30.07|30.158| 1.7| 1.3|359| 27|NNW| 0| 0| | +--+------+------+------+------+---+----+----+----+---------+--+-----+-----+------+------+------+----+----+---+---+---+---+---+------+ | Sum | Sum |------|------|---|----| Ttl| Ttl| |Total|Total| For the month: | ---- | +------+------+------+------+---+----+----+----+ Number of +-----+-----+------+------+------+----+----+---+---+---+---+---+------+ |2392.9|1972.2|------|------|---|----| 1| 242| Days | 2.47| 0.0| 30.33| 29.68|29.992| 1.2| 0.9| 20| 36| NE| 0| 0| ---- | +------+------+------+------+---+----+----+----+------------|-3.05" or 45% of normal +------+----+----+---+---+---+---+---+------+ | Avg | Avg | Avg | Mean |Avg| Avg|----|----|Precip | Season Ttl| Date | Date |------|----|----|---| Date | Date | Avg | +------+------+------+------+---+----+----+----+ +-----+-----+------+------+------+----+----+---+-------+-------+------+ | 79.8| 65.7| 72.7 | 72.7 | 67|82.4|----|----|≥.01 Inch 9|45.13| 0.0| 10 | 27 |------|----|----|---| 26 | 1+ | | + -0.9 +1.1 +0.1 ------+---+----+----+----+------------|+5.27" or 113% of normal +------+----+----+---+-------+-------+------+ | | 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 | 1|1880|Thunder 1|Precipitation | Snow, Ice Plts | and Date | +--------+---------+--------+--------+----+----+------------+-------+------+---------+-------+-------------+----------------------+ | ≥90°F | ≤32°F | ≤32°F | ≤0°F |----|----|Heavy Fog 1| 0.92| 1- 2| 0.0 | - | 0 | - | +--------+---------+--------+--------+----+----+------------+-------+------+---------+----+--+-------------+----------------------+ | 0 | 0 | 0 | 0 |----|----| Clear 14 Partly Cloudy 11 Cloudy 4 | +--------+---------+--------+--------+----+----+------------------------------------------+ 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: FROPA: 1st (coastal back-door with onshore flow), 3rd, 6th, 28th
STATION RECORDS:
2nd - RAINFALL 0.72" [previous 0.67" in 1999]
8th - TEMPERATURE TIED Minimum 55 [previous 1984]
26th - WIND GUST 36mph [previous 32mph 1985]
27th - TEMPERATURE Maximum low 75 [previous 73 2002]
OBSERVATIONS AT 3-HOUR INTERVALS
September 2017: 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| |29.95| 0.00| 74| 72| 92|20| 0| 12| |30.06| 0.05| 63| 63| 98|02| 0| 13| |29.95| 0.00| 71| 70| 99|00| 0| 0| |04| |29.97| 0.00| 72| 71| 96|00| 0| 4| |30.03| 0.12| 65| 65| 99|04| 0| 7| |29.94| 0.00| 72| 72|100|00| 0| 0| |07| |30.02| 0.00| 72| 71| 94|04| 0| 20| |30.03| 0.00| 68| 68|100|00| 0| 0| |29.96| 0.00| 70| 70|100|00| 0| 0| |10| |30.08| 0.00| 71| 64| 79|04| 5| 22| |30.05| 0.00| 73| 73|100|00| 0| 0| |29.98| 0.00| 71| 68| 89|29| 0| 14| |13| |30.10| 0.00| 71| 65| 80|04| 4| 18| |30.01| 0.00| 78| 76| 96|00| 0| 0| |29.98| 0.00| 76| 66| 72|29| 0| 14| |16| |30.07| 0.00| 71| 62| 73|04| 4| 22| |29.98| 0.00| 79| 77| 92|00| 0| 0| |29.96| 0.00| 77| 67| 70|29| 0| 12| |19| |30.09| 0.00| 68| 61| 77|04| 4| 17| |29.98| 0.07| 77| 75| 93|00| 0| 0| |29.98| 0.00| 77| 67| 72|29| 0| 12| |22| |30.11| 0.03| 61| 60| 94|04| 6| 18| |29.98| 0.00| 73| 72| 98|13| 0| 4| |30.02| 0.00| 69| 65| 88|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 4 | SEP 5 | SEP 6 | | | | | |01| |30.03| 0.00| 65| 63| 93|00| 0| 0| |29.94| 0.00| 71| 69| 92|20| 0| 7| |29.85| 0.00| 76| 74| 94|15| 0| 10| |04| |30.02| 0.00| 63| 62| 95|00| 0| 0| |29.93| 0.00| 69| 68| 94|00| 0| 0| |29.81| 0.00| 71| 68| 91|29| 0| 7| |07| |30.05| 0.00| 61| 60| 96|00| 0| 0| |29.93| 0.00| 68| 68| 97|00| 0| 0| |29.84| 0.01| 70| 69| 96|00| 0| 0| |10| |30.06| 0.00| 71| 68| 92|20| 0| 4| |29.92| 0.00| 77| 73| 88|22| 0| 15| |29.88| 0.00| 75| 71| 87|20| 0| 4| |13| |30.03| 0.00| 81| 66| 60|27| 0| 5| |29.86| 0.00| 86| 74| 67|20| 4| 20| |29.84| 0.00| 84| 75| 76|11| 0| 13| |16| |29.98| 0.00| 84| 67| 57|24| 0| 13| |29.81| 0.00| 88| 75| 67|22| 4| 23| |29.79| 0.02| 79| 75| 87|15| 0| 13| |19| |29.95| 0.00| 80| 68| 66|20| 0| 12| |29.82| 0.00| 83| 76| 79|22| 0| 7| |29.85| 0.01| 69| 67| 94|00| 4| 26| |22| |29.93| 0.00| 73| 67| 81|20| 0| 6| |29.85| 0.00| 76| 74| 95|13| 0| 7| |29.89| 0.00| 66| 64| 94|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 7 | SEP 8 | SEP 9 | | | | | |01| |29.92| 0.00| 66| 65| 97|00| 0| 0| |30.10| 0.00| 60| 57| 91|00| 0| 0| |30.17| 0.00| 60| 57| 89|00| 0| 0| |04| |29.92| 0.00| 65| 65| 98|00| 0| 0| |30.11| 0.00| 57| 55| 94|00| 0| 0| |30.16| 0.00| 57| 55| 92|00| 0| 0| |07| |29.95| 0.00| 62| 61| 97|00| 0| 0| |30.14| 0.00| 55| 54| 95|00| 0| 0| |30.20| 0.00| 57| 55| 95|00| 0| 0| |10| |30.01| 0.00| 65| 62| 90|24| 0| 11| |30.17| 0.00| 68| 59| 71|33| 0| 12| |30.24| 0.00| 71| 60| 69|04| 4| 20| |13| |30.00| 0.00| 72| 61| 69|31| 0| 7| |30.16| 0.00| 74| 54| 50|31| 0| 12| |30.24| 0.00| 72| 58| 61|04| 5| 23| |16| |29.99| 0.00| 75| 57| 53|24| 0| 14| |30.14| 0.00| 76| 56| 49|29| 4| 16| |30.22| 0.00| 73| 56| 56|04| 6| 23| |19| |30.01| 0.00| 73| 57| 57|27| 0| 14| |30.15| 0.00| 73| 56| 54|04| 0| 11| |30.24| 0.00| 69| 53| 57|04| 4| 19| |22| |30.07| 0.00| 64| 58| 83|00| 0| 0| |30.18| 0.00| 64| 57| 77|00| 0| 0| |30.26| 0.00| 67| 54| 63|04| 0| 10| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 10 | SEP 11 | SEP 12 | | | | | |01| |30.25| 0.00| 66| 54| 66|04| 0| 18| |30.27| 0.00| 67| 57| 71|04| 0| 11| |30.05| 0.00| 69| 63| 80|04| 0| 12| |04| |30.25| 0.00| 64| 54| 69|04| 0| 15| |30.26| 0.00| 63| 57| 80|00| 0| 0| |30.00| 0.00| 69| 63| 82|04| 0| 15| |07| |30.29| 0.00| 62| 53| 74|04| 0| 10| |30.24| 0.00| 62| 57| 83|00| 0| 0| |29.98| 0.00| 69| 64| 84|04| 0| 11| |10| |30.33| 0.00| 67| 56| 68|04| 4| 17| |30.20| 0.00| 71| 59| 66|04| 5| 23| |30.00| 0.00| 73| 68| 84|06| 0| 10| |13| |30.31| 0.00| 70| 58| 66|04| 5| 22| |30.20| 0.00| 73| 61| 66|04| 4| 21| |29.94| 0.00| 76| 69| 78|04| 0| 14| |16| |30.30| 0.00| 71| 59| 67|04| 4| 19| |30.12| 0.00| 72| 62| 69|04| 4| 19| |29.92| 0.00| 77| 70| 80|04| 0| 14| |19| |30.28| 0.00| 69| 60| 72|04| 4| 17| |30.12| 0.00| 70| 62| 76|04| 0| 15| |29.90| 0.00| 75| 69| 82|06| 0| 11| |22| |30.28| 0.00| 67| 58| 72|06| 0| 15| |30.08| 0.00| 70| 62| 78|04| 0| 18| |29.90| 0.00| 72| 69| 90|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 13 | SEP 14 | SEP 15 | | | | | |01| |29.87| 0.00| 73| 71| 93|13| 0| 4| |29.90| 0.00| 71| 67| 88|09| 0| 4| |29.97| 0.00| 72| 71| 96|00| 0| 0| |04| |29.86| 0.00| 74| 72| 95|00| 0| 0| |29.90| 0.00| 69| 67| 94|00| 0| 0| |29.96| 0.00| 72| 71| 97|00| 0| 0| |07| |29.89| 0.00| 73| 72| 96|00| 0| 0| |29.93| 0.00| 68| 67| 97|00| 0| 0| |30.00| 0.00| 71| 71| 98|00| 0| 0| |10| |29.92| 0.00| 76| 73| 89|18| 0| 4| |29.96| 0.00| 77| 73| 89|22| 0| 7| |30.05| 0.00| 76| 72| 88|02| 0| 4| |13| |29.90| 0.00| 83| 73| 72|20| 0| 15| |29.92| 0.31| 78| 75| 89|27| 4| 23| |30.03| 0.00| 82| 71| 68|06| 0| 4| |16| |29.85| 0.00| 85| 70| 60|27| 0| 13| |29.90| 0.00| 82| 73| 75|15| 0| 10| |30.01| 0.00| 83| 72| 69|04| 0| 4| |19| |29.86| 0.00| 81| 69| 66|20| 0| 5| |29.92| 0.00| 79| 71| 78|20| 0| 4| |30.04| 0.00| 79| 71| 75|04| 0| 7| |22| |29.89| 0.00| 74| 68| 82|24| 0| 4| |29.96| 0.00| 73| 70| 92|00| 0| 0| |30.06| 0.00| 75| 71| 87|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 16 | SEP 17 | SEP 18 | | | | | |01| |30.08| 0.00| 73| 71| 94|00| 0| 0| |30.07| 0.00| 71| 70| 96|00| 0| 0| |30.01| 0.00| 74| 71| 92|04| 0| 12| |04| |30.06| 0.00| 71| 70| 95|00| 0| 0| |30.05| 0.00| 72| 69| 91|04| 0| 6| |29.97| 0.00| 73| 72| 97|06| 0| 7| |07| |30.08| 0.00| 70| 69| 97|00| 0| 0| |30.08| 0.00| 73| 70| 92|02| 0| 4| |29.98| 0.00| 73| 72| 95|04| 0| 11| |10| |30.11| 0.00| 78| 73| 84|04| 0| 11| |30.08| 0.00| 77| 72| 85|04| 0| 10| |30.00| 0.00| 76| 72| 89|04| 4| 18| |13| |30.09| 0.00| 82| 71| 70|04| 0| 12| |30.07| 0.00| 78| 72| 83|04| 0| 14| |29.97| 0.00| 79| 72| 79|04| 4| 18| |16| |30.07| 0.00| 82| 70| 67|04| 0| 15| |30.04| 0.00| 76| 72| 88|04| 4| 17| |29.93| 0.00| 78| 72| 83|04| 4| 21| |19| |30.07| 0.00| 77| 71| 81|04| 0| 14| |30.02| 0.00| 75| 71| 88|04| 0| 11| |29.92| 0.00| 76| 71| 86|04| 5| 21| |22| |30.08| 0.00| 73| 69| 90|00| 0| 0| |30.03| 0.00| 74| 71| 91|04| 0| 14| |29.93| 0.00| 74| 70| 88|04| 4| 15| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+
MAXIMUM SHORT DURATION PRECIPITATION
+------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Time Period (minutes) | 5 | 10 | 15 | 20 | 30 | 45 | 60 | 80 | 100 | 120 | 150 | 180 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Precipitation | 0.03 | 0.06 | 0.08 | 0.11 | 0.16 | 0.24 | 0.31 | 0.31 | 0.31 | 0.33 | 0.33 | 0.33 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Date | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 02 | 02 | 02 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ | Ended: Time | 1203 | 1209 | 1213 | 1219 | 1229 | 1244 | 1258 | 1258 | 1258 | 0457 | 0457 | 0457 | +------------------------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+ 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 2017: 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| |29.89| 0.00| 74| 70| 89|04| 4| 20| |29.87| 0.00| 72| 70| 95|29| 0| 10| |29.96| 0.00| 69| 67| 92|00| 0| 0| |04| |29.84| 0.00| 73| 70| 89|31| 4| 22| |29.86| 0.00| 70| 69| 95|00| 0| 0| |29.95| 0.00| 67| 65| 95|00| 0| 0| |07| |29.85| 0.00| 73| 69| 89|31| 4| 20| |29.90| 0.00| 69| 67| 94|00| 0| 0| |29.99| 0.00| 64| 63| 96|00| 0| 0| |10| |29.87| 0.00| 72| 69| 92|31| 0| 18| |29.95| 0.00| 75| 70| 86|00| 0| 0| |30.02| 0.00| 77| 69| 76|06| 0| 6| |13| |29.86| 0.00| 74| 71| 92|31| 5| 21| |29.93| 0.00| 82| 70| 67|29| 0| 16| |30.00| 0.00| 84| 68| 59|31| 0| 7| |16| |29.84| 0.00| 76| 72| 87|31| 4| 18| |29.90| 0.00| 85| 68| 57|29| 0| 19| |29.97| 0.00| 85| 70| 62|29| 0| 16| |19| |29.84| 0.00| 72| 71| 97|00| 0| 6| |29.91| 0.00| 81| 69| 66|00| 0| 0| |29.98| 0.00| 81| 69| 67|00| 0| 0| |22| |29.87| 0.00| 72| 70| 94|00| 0| 0| |29.95| 0.00| 73| 68| 85|02| 0| 5| |30.02| 0.00| 74| 69| 85|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 22 | SEP 23 | SEP 24 | | | | | |01| |30.04| 0.00| 70| 68| 92|00| 0| 0| |29.99| 0.00| 67| 65| 93|00| 0| 0| |30.03| 0.00| 70| 67| 92|00| 0| 0| |04| |29.99| 0.00| 67| 65| 94|00| 0| 0| |29.98| 0.00| 65| 63| 95|00| 0| 0| |30.01| 0.00| 67| 66| 94|00| 0| 0| |07| |30.02| 0.00| 66| 65| 97|00| 0| 0| |30.00| 0.00| 64| 63| 97|00| 0| 0| |30.04| 0.00| 66| 64| 96|00| 0| 0| |10| |30.04| 0.00| 75| 72| 90|29| 0| 12| |30.02| 0.00| 75| 71| 88|06| 0| 15| |30.04| 0.00| 76| 71| 83|06| 0| 10| |13| |30.00| 0.00| 84| 70| 63|31| 0| 13| |30.03| 0.00| 81| 69| 66|29| 0| 16| |30.03| 0.00| 83| 69| 62|04| 0| 14| |16| |29.97| 0.00| 81| 69| 67|04| 0| 11| |30.02| 0.00| 82| 69| 66|06| 0| 18| |29.99| 0.00| 83| 65| 55|06| 0| 16| |19| |29.96| 0.00| 79| 68| 68|00| 0| 0| |30.03| 0.00| 79| 69| 71|04| 0| 7| |29.98| 0.00| 78| 65| 64|06| 0| 15| |22| |29.99| 0.00| 70| 67| 88|00| 0| 0| |30.05| 0.00| 74| 69| 86|00| 0| 0| |30.00| 0.00| 73| 67| 83|00| 0| 0| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 25 | SEP 26 | SEP 27 | | | | | |01| |29.97| 0.00| 68| 65| 92|00| 0| 0| |29.90| 0.10| 72| 71| 98|04| 0| 13| |29.76| 0.00| 75| 75| 97|04| 5| 22| |04| |29.96| 0.00| 67| 65| 95|00| 0| 0| |29.87| 0.00| 72| 72| 99|04| 0| 14| |29.72| 0.00| 76| 75| 96|33| 5| 23| |07| |29.97| 0.00| 70| 69| 96|00| 0| 0| |29.88| 0.01| 72| 72|100|06| 0| 16| |29.73| 0.00| 76| 75| 96|33| 5| 26| |10| |29.98| 0.00| 74| 70| 87|04| 4| 20| |29.89| 0.00| 73| 73|100|04| 0| 15| |29.73| 0.00| 76| 75| 95|31| 7| 25| |13| |29.98| 0.00| 77| 71| 83|04| 4| 20| |29.86| 0.01| 75| 74| 97|04| 4| 18| |29.71| 0.00| 80| 76| 87|33| 7| 27| |16| |29.94| 0.00| 76| 70| 81|04| 5| 21| |29.80| 0.01| 76| 75| 96|04| 6| 36| |29.68| 0.00| 83| 76| 79|33| 11| 31| |19| |29.93| 0.00| 73| 69| 88|04| 5| 21| |29.79| 0.00| 75| 75| 98|04| 4| 21| |29.69| 0.00| 82| 75| 79|33| 6| 28| |22| |29.93| 0.00| 72| 70| 93|04| 4| 20| |29.79| 0.00| 75| 74| 98|04| 4| 19| |29.71| 0.00| 81| 74| 80|31| 4| 20| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | SEP 28 | SEP 29 | SEP 30 | | | | | |01| |29.71| 0.00| 78| 74| 87|31| 0| 14| |29.95| 0.00| 73| 60| 63|04| 6| 15| |30.08| 0.00| 60| 57| 89|00| 0| 0| |04| |29.71| 0.00| 74| 71| 89|29| 0| 12| |29.99| 0.00| 70| 55| 60|04| 6| 20| |30.08| 0.00| 58| 55| 92|00| 0| 0| |07| |29.75| 0.00| 72| 68| 89|29| 0| 4| |30.04| 0.00| 66| 51| 60|04| 6| 17| |30.11| 0.00| 57| 56| 95|00| 0| 0| |10| |29.81| 0.00| 79| 70| 74|31| 5| 19| |30.08| 0.00| 69| 55| 61|04| 0| 17| |30.15| 0.00| 68| 58| 70|31| 4| 19| |13| |29.80| 0.00| 83| 70| 66|31| 5| 19| |30.06| 0.00| 71| 57| 61|04| 0| 11| |30.17| 0.00| 70| 54| 57|31| 0| 18| |16| |29.80| 0.00| 85| 65| 51|29| 5| 19| |30.03| 0.00| 73| 57| 57|33| 0| 6| |30.17| 0.00| 70| 53| 55|33| 4| 20| |19| |29.85| 0.00| 79| 62| 55|04| 5| 20| |30.04| 0.00| 72| 59| 65|00| 0| 0| |30.21| 0.00| 66| 51| 59|31| 0| 10| |22| |29.92| 0.00| 75| 57| 53|04| 4| 16| |30.07| 0.00| 64| 58| 82|00| 0| 0| |30.26| 0.00| 65| 50| 59|33| 0| 21| +--+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+----+-----+-----+---+---+---+--+---+---+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +------------------------------------------+---------------------------------------+---------------------------------------+
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| |29.986| 70| 66| 90| 0.5| 05 | 0.5| |04| |29.973| 68| 66| 92| 0.5| 36 | 0.4| |07| |29.996| 67| 65| 93| 0.5| 36 | 0.4| |10| |30.020| 73| 68| 84| 1.4| 01 | 1.0| |13| |30.003| 78| 68| 72| 1.8| 01 | 1.1| |16| |29.971| 79| 67| 69| 2.3| 01 | 1.5| |19| |29.980| 76| 66| 74| 1.4| 03 | 1.2| |22| |30.002| 71| 66| 84| 0.9| 03 | 0.7| +--+----+------+---+---+---+-----+----+----+
HOURLY PRECIPITATION (Water Equivalent)
September 2017: 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| |0.03|0.01| | | | | | | | | | | | | | | | |0.01|0.07|0.03|0.05|0.08|01 02|0.05|0.06| |0.12|0.21| | | | | | | | |0.01| | | | |0.07|0.17|0.03| | | |02 03| | | | | | | | | | | | | | | | | | | | | | | | |03 04| | | | | | | | | | | | | | | | | | | | | | | | |04 05| | | | | | | | | | | | | | | | | | | |0.08| | | | |05 | | | | | | | | | | | | | | | | | | | | | | | | | 06| | |0.01| | | |0.01| | | | | | | | |0.02|0.23|0.03|0.01|0.06|0.01| | | |06 07| |0.02| | | | | | | | | | | | | | | | | | | | | | |07 08| | | | | | | | | | | | | | | | | | | | | | | | |08 09| | | | | | | | | | | | | | | | | | | | | | | | |09 10| | | | | | | | | | | | | | | | | | | | | | | | |10 | | | | | | | | | | | | | | | | | | | | | | | | | 11| | | | | | | | | | | | | | | | | | | | | | | | |11 12| | | | | | | | | | | | | | | | | | | | | | | | |12 13| | | | | | | | | | | | | | | | | | | | | | | | |13 14| | | | | | | | | | | | |0.31| | | | | | | | | | | |14 15| | | | | | | | | | | | | | | | | | | | | | | | |15 | | | | | | | | | | | | | | | | | | | | | | | | | 16| | | | | | | | | | | | | | | | | | | | | | | | |16 17| | | | | | | | | | | | | | | | | | | | | | | | |17 18| | | | | | | | | | | | | | | | |0.02| | | | | | | |18 19| | | | | | | | |0.06| | |0.02| |0.01|0.01| | |0.10| | | | | | |19 20| | | | | | | | | | | | | | | | | | | | | | | | |20 | | | | | | | | | | | | | | | | | | | | | | | | | 21| | | | | | | | | | | | | | | | | | | | | | | | |21 22| | | | | | | | | | | | | | | | | | | | | | | | |22 23| | | | | | | | | | | | | | | | | | | | | | | | |23 24| | | | | | | | | | | | | | | | | | | | | | | | |24 25| | | | | | | | | | | | | | | | | | | | | | | | |25 | | | | | | | | | | | | | | | | | | | | | | | | | 26|0.10|0.10| | | | |0.01| | | | | |0.01|0.02| |0.01|0.02|0.01| |0.18| | | | |26 27| | | | | | | | | | | | | | | | | | | | | | | | |27 28| | | | | | | | | | | | | | | | | | | | | | | | |28 29| | | | | | | | | | | | | | | | | | | | | | | | |29 30| | | | | | | | | | | | | | | | | | | | | | | | |30 ---+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+--- Sum|0.15|0.21|0.02|0.12|0.21|0.00|0.02|0.00|0.06|0.00|0.00|0.02|0.32|0.04|0.01|0.03|0.27|0.14|0.08|0.50|0.11|0.03|0.05|0.08|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.)