Click on button above to view VA Watches/Warnings/Special Wx Statements.


Prince William, VA Weather and Climate Synopsis

To access other UK Agricultural Weather Center Pages use the pull-down menu below.

(Click image to zoom) or Click Here

36 Hr. Forecast Map
All Radar images NOAA/UKAWC
Satellite images from NOAA

Weather Summary Hourly Observations Nowcast Agricultural Weather Outlook
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts





US Weekly Rainfall Departure



US Weekly Temperature Departure
Also see:




A joint service of the UK Ag Weather Center and the National Weather Service.


Weather Summary for SW VA...SE WV...and NW NC
National Weather Service Blacksburg VA
529 AM EDT Wed Aug 15 2018

.FORECAST SUMMARY...
High pressure over the central and southern Appalachians will move 
off the southeast coast by Thursday night. Low pressure over the 
Great Lakes will track east Friday and Saturday pushing a cold front 
into the Mid-Atlantic region. This front will remain in the area 
through Monday. Dry weather today will give way to increasing
chances for showers and thunderstorms Thursday and even more so
Friday through the weekend. Isolated strong to severe storms and
locally heavy rainfall will be possible over the weekend.

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.
Regional Hourly Observations For PRINCE WILLIAM County
1200 PM EDT WED AUG 15 2018


NORTHERN VIRGINIA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
WASH NATIONAL  FAIR      87  67  51 VRB5      30.04S                  
DULLES         FAIR      85  68  56 W9        30.05S                  
FORT BELVOIR   FAIR      86  70  58 NW9       30.04S                  
QUANTICO       FAIR      86  70  58 CALM      30.05S                  
FREDERICKSBRG* FAIR      86  70  59 NW5       30.05S                  
STAFFORD*      FAIR      85  69  59 W5        30.09F                  
WARRENTON      FAIR      87  66  49 W6        30.05F                  
CULPEPER*      FAIR      85  66  53 N3        30.06F                  
MANASSAS*      FAIR      87  70  56 N10       30.05F                  
LEESBURG*      FAIR      84  72  65 NW7       30.06S                  
WINCHESTER     FAIR      81  64  57 W9G18     30.08F                  
FRONT ROYAL*   FAIR      81  70  69 S5        30.07S                  
LURAY*         FAIR      82  64  54 CALM      30.09F                  

Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel


Current Agricultural Weather Conditions in Virginia
Based on observations at 1100am EDT, Wednesday August 15, 2018

Across Virginia...temperatures are near 83 degrees north, near 84 degrees central, and near 81 degrees south. Current sky conditions are fair north, fair central, and fair south. In the north, relative humidity is near 60%, and the dew point is near 68 degrees. In the central part of the state, relative humidity is near 56%, and the dew point is near 67 degrees. In the south, relative humidity is near 67%, and the dew point is near 69 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. Winds are from the northwest at 9 mph north, where conditions are favorable for spraying. Winds are variable at 3 mph central, where conditions are favorable for spraying. Winds are calm south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 86 degrees at Wallops Island. The lowest temperature is FAIR degrees at Roanoke.


Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For PRINCE WILLIAM County,VA

521 AM EDT Wed Aug 15 2018

 DAY ONE  Today and Tonight

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  Thursday through Tuesday

No hazardous weather is expected at this time.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not expected at this time.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For PRINCE WILLIAM County, VA
Issued at 1032 AM EDT Wed Aug 15 2018

REST OF TODAY
Sunny. Highs around 90. West winds 5 to 10 mph.

TONIGHT
Partly cloudy. Lows in the upper 60s. Southwest winds around 5 mph.

THURSDAY
Mostly sunny. Highs in the lower 90s. Southwest winds around 5 mph.

THURSDAY NIGHT
Mostly cloudy. Lows in the lower 70s. South winds around 5 mph.

FRIDAY
Partly sunny in the morning, then mostly cloudy with a chance of showers in the afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.

FRIDAY NIGHT
Mostly cloudy. Lows in the lower 70s.

SATURDAY
Mostly cloudy with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 30 percent.

SATURDAY NIGHT
Mostly cloudy with a 40 percent chance of showers. Lows in the upper 60s.

SUNDAY
Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 40 percent.

SUNDAY NIGHT
Partly cloudy. Lows in the mid 60s.

MONDAY
Mostly sunny. Highs in the lower 80s.

MONDAY NIGHT
Partly cloudy. Lows in the upper 60s.

TUESDAY
Partly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 40 percent.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2


Medium & Long Range Outlook For Virginia
                             VIRGINIA                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   AUG 20-24    AUG 22-28    AUG       AUG-OCT                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above      Above      Above                      
 Precipitation:      Above        Above     Normal     Normal                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Almanac Information

Wednesday August 15, 2018 the 227th Day of Year

---------------------------------------------------
SUN
Declination 13.750000
Distance 0.999717 AU
Rise 06:32 EDT Set 20:09 EDT
Transit Meridian 13:20 EDT
Civil Twilight Begins 06:05 EDT Ends 20:35 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy


Historical Weather And Climate Facts For Today

///////////////////////////
AUGUST 15TH...HISTORIC WEATHER EVENTS
...1787...
Tornadoes were reported in Connecticut, Rhode Island, Massachusetts, and
New Hampshire. Wethersfield CT was hard hit by the tornado outbreak. (David
Ludlum)
...1946...
Saint Louis MO was deluged with a record 8.78 inches of rain in 24 hours.
(The Weather Channel)
...1967...
The "sundance fire" in northern Idaho was started by lightning. Winds of 50
mph carried firebrands as much as ten miles in advance to ignite new fires,
and as a result, the forest fire spread twenty miles across the Selkirk
Mountains in just twelve hours, burning 56,000 acres. The heat of the fire
produced whirlwinds of flame with winds up to 300 mph which flung giant
trees about like matchsticks. (David Ludlum)
...1987...
Thunderstorms developing ahead of a sharp cold front produced severe
weather in the Upper Midwest during the afternoon and evening hours, with
Minnesota and eastern South Dakota hardest hit. A thunderstorm in west
central Minnesota spawned a tornado at Eagle Lake which killed one person
and injured eight others. A thunder- storm in eastern South Dakota produced
softball size hail at Warner. (The National Weather Summary) (Storm Data)
...1988...
Thirty five cities in twenty states in the north central and northeastern
U.S. reported record high temperatures for the date, including Lamoni IA
and Baltimore MD, where the mercury hit 105 degrees. Temperatures 100
degrees or above were reported in twenty-two states. Pierre SD was the hot
spot in the nation with a high of 114 degrees. Bluefield WV reported eight
straight days of record heat. (The National Weather Summary)
...1989...
Evening thunderstorms in eastern New Mexico produced wind gusts to 66 mph
at Clovis. Evening thunderstorms in West Texas produced baseball size hail
around Hereford, Dimmitt, Ware and Dalhart. (The National Weather Summary)
(Storm Data)


Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky