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


Frederick, 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
625 PM EDT Fri Jul 20 2018

.FORECAST SUMMARY...
Expect partly cloudy skies through around sunset this evening,
when a broken line of showers and thunderstorms will move in from
Kentucky and West Virginia, affecting areas west of Interstate 77
through midnight. Some widely scattered shower activity will 
linger through the early morning hours of Saturday under otherwise
partly to mostly cloudy skies. Overnight temperatures will hold
generally in the 60s. Saturday will start mainly on the dry side,
however rain chances will increase considerably in the afternoon 
as showers and thunderstorms move across the central Appalachians.
Saturday afternoon high temperatures will vary from the mid 70s 
in the west to the low 80s east of the mountains. 

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 FREDERICK County
800 PM EDT FRI JUL 20 2018


SHENANDOAH VALLEY
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
WINCHESTER*    FAIR      75  63  64 SE9       30.04S                  
FRONT ROYAL*   FAIR      77  61  57 SE5       30.02S                  
LURAY*         FAIR      77  61  57 SE3       30.03R                  
NEW MARKET*    FAIR      78  60  54 CALM      30.00S                  
STAUNTON*      FAIR      76  61  58 SE7       30.05F                  
WAYNESBORO*    FAIR      75  62  65 SE5       30.05S                  

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


Current Agricultural Weather Conditions in Virginia
Based on observations at 700pm EDT, Friday July 20, 2018

Across Virginia...temperatures are near 80 degrees north, near 82 degrees central, and near 82 degrees south. Current sky conditions are fair north, fair central, and cloudy south. In the north, relative humidity is near 48%, and the dew point is near 59 degrees. In the central part of the state, relative humidity is near 42%, and the dew point is near 57 degrees. In the south, relative humidity is near 54%, and the dew point is near 64 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. Winds are from the southeast at 9 mph north, where conditions are favorable for spraying. Winds are from the east at 8 mph central, where conditions are favorable for spraying. Winds are variable at 3 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 83 degrees at Washington DC and Fort Belvoir. The lowest temperature is MOCLDY 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 FREDERICK County,VA

1044 AM EDT Fri Jul 20 2018

 DAY ONE  Today and Tonight

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  Saturday through Thursday

Locally heavy rain may lead to isolated incidents of flooding 
Saturday into Saturday evening in the Baltimore-Washington metro 
area.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not expected at this time.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For FREDERICK County, VA
Issued at 731 PM EDT Fri Jul 20 2018

TONIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Southeast winds 5 to 10 mph. Chance of rain 20 percent.

SATURDAY
A chance of showers in the morning, then rain likely in the afternoon. Highs in the lower 70s. East winds 5 to 10 mph. Chance of rain 70 percent.

SATURDAY NIGHT
Cloudy with a 50 percent chance of showers. Patchy fog in the evening. Patchy fog after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph.

SUNDAY
Cloudy. Patchy fog in the morning. A chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 70s. Southeast winds 5 to 10 mph. Chance of rain 60 percent.

SUNDAY NIGHT
Showers likely. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of rain 60 percent.

MONDAY
Showers with a chance of thunderstorms. Highs in the lower 80s. Chance of rain 80 percent.

MONDAY NIGHT
Showers. Lows around 70. Chance of rain 80 percent.

TUESDAY
Showers with a chance of thunderstorms. Highs in the upper 70s. Chance of rain 80 percent.

TUESDAY NIGHT
Showers likely. Lows in the upper 60s. Chance of rain 70 percent.

WEDNESDAY
Showers likely with a chance of thunderstorms. Highs around 80. Chance of rain 70 percent.

WEDNESDAY NIGHT
Showers likely. Lows in the upper 60s. Chance of rain 70 percent.

THURSDAY
Showers likely with a chance of thunderstorms. Highs in the lower 80s. Chance of rain 70 percent.

THURSDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the upper 60s.

FRIDAY
Partly sunny with a chance of showers. Highs in the mid 80s. Chance of rain 50 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 
                   JUL 26-30 JUL 28-AUG 3    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal       Normal      Above      Above                      
 Precipitation:      Above        Above     Normal      Above                      

....  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

Friday July 20, 2018 the 201th Day of Year

---------------------------------------------------
SUN
Declination 20.480000
Distance 0.999716 AU
Rise 06:10 EDT Set 20:35 EDT
Transit Meridian 13:22 EDT
Civil Twilight Begins 05:41 EDT Ends 21:04 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

////////////////////////
JULY 20TH...HISTORIC WEATHER EVENTS
...1930...
The temperature at Washington D.C. soared to an all-time record of 106
degrees. The next day Millsboro reached 110 degrees to set a record for the
state of Delaware. July 1930 was one of the hottest and driest summers in
the U.S., particularly in the Missouri Valley where severe drought
conditions developed. Toward the end of the month state records were set
for Kentucky with 114 degrees, and Mississippi with 115 degrees. (David
Ludlum)
...1934...
The temperature at Keokuk IA soared to 118 degrees to establish a state
record. (The Weather Channel)
...1953...
Twenty-two inches of hail reportedly fell northeast of Dickinson ND. (The
Weather Channel)
...1986...
The temperature at Charleston SC hit 104 degrees for the second day in a
row to tie their all-time record high. (The Weather Channel)
...1987...
Thunderstorms produced severe weather across Minnesota, Wisconsin and
Michigan. Thunderstorms produced wind gusts to 87 mph at Mosinee WI, and
strong thunderstorm winds capsized twenty-six boats on Grand Traverse Bay
drowning two women. Thunderstorms produced nine inches of rain at Shakopee
MN, with 7.83 inches reported in six hours at Chaska MN. Thunderstorms in
north central Nebraska produced hail as large as golf balls in southwestern
Cherry County, which accumulated to a depth of 12 inches. (The National
Weather Summary) (Storm Data)
...1988...
The temperature at Redding CA soared to an all-time record high of 118
degrees. Showers and thunderstorms produced much needed rains from New
England to southern Texas. Salem IN was deluged with 7.2 inches of rain
resulting in flash flooding. (The National Weather Summary)
...1989...
Showers and thunderstorms in the Middle Atlantic Coast Region soaked
Wilmington DE with 2.28 inches of rain, pushing their total for the period
May through July past the previous record of 22.43 inches. Heavy rain over
that three month period virtually wiped out a 16.82 inch deficit which had
been building since drought conditions began in 1985. Thunderstorms in
central Indiana deluged Lebanon with 6.50 inches of rain in twelve hours,
and thunderstorms over Florida produced wind gusts to 84 mph at Flagler
Beach. (The National Weather Summary) (Storm Data)

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