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Prince William, VA Weather and Climate Synopsis

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Regional Hourly Observations For PRINCE WILLIAM County
200 AM EST THU DEC 14 2017


NORTHERN VIRGINIA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
WASH NATIONAL  CLOUDY    36  16  44 S12       29.54F                  
DULLES         PTCLDY    32  14  47 S8        29.51F                  
FORT BELVOIR   PTCLDY    35  16  44 S5        29.54F                  
QUANTICO       PTCLDY    37  20  50 SW13      29.56F                  
FREDERICKSBRG* CLEAR     36  19  49 S9G17     29.55F                  
STAFFORD*      CLEAR     33  15  47 S7        29.58F                  
WARRENTON      CLEAR     34  12  40 CALM      29.52F                  
CULPEPER*      MOCLDY    32  13  45 S3        29.53F                  
MANASSAS*      PTCLDY    29  16  58 SE3       29.53F                  
LEESBURG*      CLOUDY    32  18  55 S8        29.51F                  
WINCHESTER     PTCLDY    27  18  69 CALM      29.45F                  
FRONT ROYAL*   MOSUNNY   32  14  47 CALM      29.45F                  
LURAY*         CLOUDY    34  18  51 SW7       29.46F                  

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


Current Agricultural Weather Conditions in Virginia
Based on observations at 200am EST, Thursday December 14, 2017

Across Virginia...temperatures are near 32 degrees north, near 38 degrees central, and near 32 degrees south. Current sky conditions are partly cloudy north, partly cloudy central, and clear south. In the north, relative humidity is near 47%, and the dew point is near 14 degrees. In the central part of the state, relative humidity is near 44%, and the dew point is near 18 degrees. In the south, relative humidity is near 58%, and the dew point is near 19 degrees. Winds are from the south at 8 mph north, where conditions are favorable for spraying. Winds are from the south at 14 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the southwest at 7 mph south, where conditions are favorable for spraying. The livestock cold stress index is in the no stress category north, no stress category central, and no stress category south. Based on current available observations, the highest temperature is 39 degrees at Wallops Island and Norfolk. 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

1208 AM EST Thu Dec 14 2017

 DAY ONE  Tonight

A Gale warning is in effect for the lower Chesapeake Bay waters
overnight. 

Slippery conditions on untreated surfaces will continue into the
morning rush for areas that received snow. 

 DAYS TWO THROUGH SEVEN  Thursday through Tuesday

The Gale Warning continues through Thursday morning. 

 SPOTTER INFORMATION STATEMENT  

Spotters are asked to report significant weather using standard
operating procedures.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For PRINCE WILLIAM County, VA
Issued at 1229 AM EST Thu Dec 14 2017

OVERNIGHT
Mostly cloudy. Lows in the upper 20s. Southwest winds around 10 mph with gusts up to 20 mph.

THURSDAY
Mostly sunny. Highs in the lower 40s. West winds 10 to 15 mph, becoming northwest in the afternoon.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 20s. North winds 5 to 10 mph, becoming northeast after midnight.

FRIDAY
Mostly cloudy. Highs in the mid 30s. South winds around 5 mph.

FRIDAY NIGHT
Partly cloudy. Lows in the mid 20s. West winds 5 to 10 mph.

SATURDAY
Mostly sunny. Highs in the mid 40s.

SATURDAY NIGHT
Mostly clear. Lows in the mid 20s.

SUNDAY
Partly sunny. Highs in the upper 40s.

SUNDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the mid 30s.

MONDAY
Partly sunny. Highs in the mid 50s.

MONDAY NIGHT
Partly cloudy. Lows in the mid 30s.

TUESDAY
Mostly sunny. Highs in the lower 50s.

TUESDAY NIGHT
Partly cloudy. Lows in the mid 30s.

WEDNESDAY
Sunny. Highs in the mid 40s.

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 
                   DEC 19-23    DEC 21-27    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal       Normal     Normal      Above                      
 Precipitation:     Normal        Above      Below      Below                      

....  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

Thursday December 14, 2017 the 348th Day of Year

---------------------------------------------------
SUN
Declination -23.270000
Distance 0.999725 AU
Rise 07:25 EST Set 16:57 EST
Transit Meridian 12:11 EST
Civil Twilight Begins 06:56 EST Ends 17:26 EST

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

DECEMBER 14TH
HISTORIC WEATHER EVENTS
...1901...
Wet and cold: Louisville, KY set both a record low (2 degrees) and a daily 
precipitation record (2.21 inches). (The high temperature that day was 42.)
(NWS Louisville)
...1924...
The temperature at Helena MT plunged 79 degrees in 24 hours, and 88 degrees
in 34 hours. The mercury plummeted from 63 above to 25 below zero. At
Fairfield MT the temperature plunged 84 degrees in just 12 hours, from 63
at Noon to 21 below zero at midnight. (David Ludlum)
...1987...
A powerful storm spread heavy snow from the Southern High Plains to the
Middle Mississippi Valley, and produced severe thunderstorms in the Lower
Mississippi Valley. During the evening a tornado hit West Memphis TN
killing six persons and injuring two hundred others. The tornado left 1500
persons homeless, and left all of the residents of Crittendon County
without electricity. Kansas City MO was blanketed with 10.8 inches of snow,
a 24 hour record for December, and snowfall totals in the Oklahoma
panhandle ranged up to 14 inches. Strong winds, gusting to 63 mph at Austin
TX, ushered arctic cold into the Great Plains, and caused considerable
blowing and drifting of snow. (Storm Data) (The National Weather Summary)
...1988...
Blowing snow was reported in western Kansas, as snow and gusty winds
plagued the Central Rockies and Central High Plains. Colorado Springs CO
reported thirteen inches of snow. Low pressure in Wisconsin brought heavy
snow to the Lake Superior snowbelt area, with 22 inches reported at
Marquette MI. (Storm Data) (The National Weather Summary)
...1989...
High winds and heavy snow prevailed from Montana to Colorado. Snowfall
totals in Wyoming ranged up to 20 inches at Burgess Junction, leaving up to
48 inches on the ground in the northeast sections of the state. Wind gusts
in Colorado reached 87 mph south of the town of Rollinsville. Strong
northwesterly winds continued to produce heavy snow squalls in the Great
Lakes Region. Totals in northeastern Lower Michigan ranged up to 29 inches
at Hubbard Lake, with 28 inches reported at Posen. Two day totals in
northeastern Wisconsin ranged up to thirty inches. (Storm Data) (The
National Weather Summary)

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