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Grayson, VA Weather and Climate Synopsis

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





US Weekly Rainfall Departure



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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
517 AM EDT Mon Jul 16 2018

.FORECAST SUMMARY...

An upper level disturbance will track across the region today.
A cold front will pass through the area Tuesday.  These features
will result in scattered to numerous showers and thunderstorms
across the region today into Tuesday.  The upper level winds
are very light, so showers that form will be slow moving.
Thunderstorms will be very rain efficient, and will produce 
localized torrential downpours, with the potential for poor
drainage flooding. 

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 GRAYSON County

SWR not available
Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel
Current Agricultural Weather Conditions in Virginia
Based on observations at 700am EDT, Monday July 16, 2018

Across Virginia...temperatures are near 69 degrees north, near 75 degrees central, and near 73 degrees south. Current sky conditions are fair north, cloudy central, and fair south. In the north, relative humidity is near 100%, and the dew point is near 69 degrees. In the central part of the state, relative humidity is near 78%, and the dew point is near 68 degrees. In the south, relative humidity is near 93%, and the dew point is near 71 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. Winds are calm north, where conditions are favorable for spraying. Winds are from the south 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 78 degrees at Washington DC. 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 GRAYSON County,VA

419 AM EDT Mon Jul 16 2018

 DAY ONE  Today and tonight.

Scattered slow-moving thunderstorms are expected to develop this
afternoon from the foothills of the Blue Ridge westward into 
southeastern West Virginia. Localized flooding is possible from
slow-moving thunderstorms in this area.

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday.

The probability for widespread hazardous weather is low for Monday
and Tuesday. 

There is no hazardous weather expected Wednesday through Sunday.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not expected at this time.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For GRAYSON County, VA
Issued at 631 AM EDT Mon Jul 16 2018

TODAY
Thunderstorms likely. Showers likely. Highs around 80. Light and variable winds, becoming southwest around 10 mph this afternoon. Chance of rain 70 percent.

TONIGHT
Mostly cloudy. Showers and thunderstorms likely in the evening, then a chance of showers with isolated thunderstorms after midnight. Lows in the mid 60s. Light and variable winds. Chance of rain 70 percent.

TUESDAY
Showers likely with a slight chance of thunderstorms in the morning, then occasional showers and thunderstorms in the afternoon. Highs in the upper 70s. West winds around 10 mph. Chance of rain 80 percent.

TUESDAY NIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 60s. Northwest winds around 10 mph. Chance of rain 50 percent.

WEDNESDAY
Sunny. Highs in the upper 70s. Light and variable winds, becoming north around 10 mph in the afternoon.

WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
Partly cloudy. Lows around 60. Highs in the upper 70s.

FRIDAY AND FRIDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 30 percent.

SATURDAY THROUGH SUNDAY
Mostly cloudy with a chance of showers and thunderstorms. Highs in the upper 70s. Lows in the lower 60s. 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 
                   JUL 21-25    JUL 23-29    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

Monday July 16, 2018 the 197th Day of Year

---------------------------------------------------
SUN
Declination 21.200000
Distance 0.999716 AU
Rise 06:07 EDT Set 20:37 EDT
Transit Meridian 13:22 EDT
Civil Twilight Begins 05:37 EDT Ends 21:06 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 16TH...HISTORIC WEATHER EVENTS
...1920...
A severe hailstorm over parts of Antelope and Boone counties in Nebraska
stripped trees of bark and foliage, ruined roofs, and broke nearly every
window facing north. (The Weather Channel)
...1946...
The temperature at Medford OR soared to an all-time high of 115 degrees to
begin a two week heat wave. During that Oregon heat wave the mercury hit
100 degrees at Sexton Summit for the only time in forty years of records.
(David Ludlum) (The Weather Channel)
...1975...
An early afternoon thunderstorm raked the east side of Tucson AZ with gale
force winds, heavy rain, and numerous lightning strikes. A thirteen year
old boy was swept through a forty foot long culvert by raging waters before
being rescued. (The Weather Channel)
...1979...
An intense thunderstorm dropped as much as 7 inches of rain in a three hour 
period over portions of southeastern pike county. two residents lost their lives 
as the car they were in was washed off the road. a young boy also died while 
being evacuated from his home. forty businesses and 2560 homes were 
affected...amounting to 7 million dollars in damage. (NWS JKL)
...1987...
Showers and thundestorms in the southwestern U.S. ended a record string of
thirty-nine consecutive days of 100 degree heat at Tucson AZ. A
thunderstorm at Bullhead City AZ produced wind gusts to 70 mph reducing the
visibility to near zero in blowing dust. Southerly winds gusting to 40 mph
pushed temperature readings above 100 degrees in the Northern Plains. Rapid
City SD reported a record high of 106 degrees, following a record low of 39
degrees just three days earlier. (The National Weather Summary) (Storm
Data)
...1988...
Thirty-seven cities in the eastern U.S. reported record high temperatures
for the date. Highs of 96 degrees at Bluefield WV and 104 degrees at
Charleston WV were all-time records, and afternoon highs of 98 degrees at
Binghamton NY, 99 degrees at Elkins WV, and 103 degrees at Pittsburgh PA,
tied all-time records. Highs of 104 degrees at Baltimore MD and 105
degrees at Parkersburg WV were records for July, and Beckley WV equalled
their record for July with a high of 94 degrees. Martinsburg WV was the hot
spot in the nation with a reading of 107 degrees. Afternoon and evening
thunderstorms raked the northeastern U.S. with large hail and damaging
winds. (The National Weather Summary)
...1989...
Showers and thunderstorms developing along a stationary front drenched the
Middle Atlantic Coast States with heavy rain, causing flooding in some
areas. More than five inches of rain was reported near Madison VA and
Ferncliff VA. Hot weather prevailed in Texas. San Angelo reported a record
high of 106 degrees. (The National Weather Summary)


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