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Washington County, MS Weather and Climate Synopsis

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

606 PM CST Sun Dec 17 2017

...DENSE FOG WILL BE A CONCERN THROUGH THE NIGHT...

.UPDATE...
Updated for 00Z aviation discussion and for forecast update

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 WASHINGTON County
600 PM CST SUN DEC 17 2017
GREENWOOD      CLOUDY    51  49  92 CALM      30.12R                  
6HR MIN TEMP:  51; 6HR MAX TEMP:  54;                                

GREENVILLE     CLOUDY    47  45  93 N3        30.11S                  
6HR MIN TEMP:  47; 6HR MAX TEMP:  49;                                

OLIVE BRANCH   CLOUDY    45  45 100 CALM      30.11R FOG              
TUNICA           N/A    N/A N/A N/A CALM      30.13F HAZE             
WINONA         CLOUDY    51  51 100 CALM      30.12R FOG              

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


Current Agricultural Weather Conditions in Mississippi
Based on observations at 600pm CST, Sunday December 17, 2017

Across Mississippi...temperatures are near 47 degrees north, near 60 degrees central, and near 64 degrees south. Current sky conditions are cloudy north, cloudy central, and cloudy south. In the north, relative humidity is near 93%, and the dew point is near 45 degrees. In the central part of the state, relative humidity is near 89%, and the dew point is near 57 degrees. In the south, relative humidity is near 97%, and the dew point is near 64 degrees. There is patchy fog north and central. Winds are calm north, where conditions are favorable for spraying. Winds are from the southeast at 3 mph central, where conditions are favorable for spraying. Winds are from the southeast 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 67 degrees at Pascagoula. The lowest temperature is 47 degrees at Tupelo and Greenville.


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 WASHINGTON County,MS

514 PM CST Sun Dec 17 2017

 DAY ONE  Tonight and Monday

FOG
THREAT  Elevated
TIMING  Tonight through 9 AM Monday

Areas of fog developing this evening are expected to reduce
visibilities through early tomorrow morning. Visibilities may be
reduced down to a quarter mile or less at times.

(www.weather.gov/images/jan/graphicast/image1.png)

 DAYS TWO THROUGH SEVEN  Monday night through Saturday

The probability for widespread hazardous weather is low.

 SPOTTER CALL TO ACTION STATEMENT  
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Saturday.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For WASHINGTON County, MS
512 PM CST Sun Dec 17 2017

TONIGHT
Patchy fog in the evening. Areas of fog after midnight. Patchy drizzle during the night. Cloudy. Temperatures nearly steady in the upper 40s. North winds around 5 mph.

MONDAY
Areas of fog in the morning. Patchy drizzle in the morning. Cloudy. Highs in the mid 60s. Northeast winds around 5 mph.

MONDAY NIGHT
Slight chance of showers in the evening, then a chance of showers after midnight. Cloudy. Lows in the lower 50s. Southeast winds 5 to 10 mph. The chance of rain 50 percent.

TUESDAY
Showers and slight chance of thunderstorms in the morning, then showers likely and slight chance of thunderstorms in the afternoon. Cloudy. Highs around 70. South winds 5 to 10 mph. The chance of rain 80 percent.

TUESDAY NIGHT
Showers and slight chance of thunderstorms. Cloudy. Lows in the mid 50s. Southeast winds 5 to 10 mph becoming west 10 to 15 mph after midnight. The chance of rain 90 percent.

WEDNESDAY
Mostly cloudy with a 30 percent chance of showers in the morning, then partly cloudy in the afternoon. Highs in the mid 60s.

WEDNESDAY NIGHT
Partly cloudy. Cooler. Lows in the mid 40s.

THURSDAY
Mostly sunny. Highs in the upper 60s.

THURSDAY NIGHT
A 40 percent chance of showers. Partly cloudy in the evening then becoming mostly cloudy. Warmer. Lows in the mid 50s.

FRIDAY
Showers likely. Cloudy. Highs in the upper 60s. The chance of rain 70 percent.

FRIDAY NIGHT
Showers likely. Cloudy, cooler. Lows in the lower 40s. The chance of rain 70 percent.

SATURDAY
Mostly cloudy with a 30 percent chance of showers. Cooler. Highs in the lower 50s.

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

SUNDAY
Mostly cloudy with a 50 percent chance of showers. Highs in the lower 50s.

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 Mississippi
                          MISSISSIPPI                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 23-27 DEC 25-DEC 31    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal        Below      Above      Above                      
 Precipitation:      Above        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

Sunday December 17, 2017 the 351th Day of Year

---------------------------------------------------
SUN
Declination -23.380000
Distance 0.999725 AU
Rise 07:56 EST Set 17:58 EST
Transit Meridian 12:57 EST
Civil Twilight Begins 07:30 EST Ends 18:25 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 17TH
HISTORIC WEATHER EVENTS
...1884...
A three week blockade of snow began at Portland OR. A record December total
of 34 inches was received. (David Ludlum)
...1924...
A severe icestorm struck central Illinois. It coated the ground with nearly
two inches of glaze at Springfield. The storm caused 21 million dollars
damage along with much hardship. Ice was on the trees until the 4th of
January, and electricity was not restored until January 10th. (David
Ludlum)
...1929...
An icestorm in western New York State resulted in much damage and hardship.
A Buffalo report stated, "one was kept awake by the breaking limbs, which
snapped off with a report much louder than a rifle shot." (17th-18th) (The
Weather Channel)
...1987...
A storm in the southwestern U.S. brought heavy rain and heavy snow to parts
of California, Nevada, Arizona, Utah and New Mexico. Charleston NV was
blanketed with 12 inches of snow. Lake Havasu City AZ was drenched with
2.26 inches of rain. (Storm Data) (The National Weather Summary)
...1988...
Squalls brought locally heavy snow to the southeastern shores of Lake
Michigan. Totals in Michigan ranged up to 14 inches at Harvey. Totals in
Ohio ranged up to 16 inches at Chardon. (The National Weather Summary)
(Storm Data)
...1989...
Twenty-one cities from Kentucky to Pennsylvania reported record low
temperatures for the date, including Columbus OH with a reading of 12
degrees below zero. Heavy snow continued in the Colorado Rockies. Vail
received 65 inches of snow between the 14th and the 18th of December.
Steamboat Springs was buried under 74 inches, and reported a total of 108
inches of snow between the 10th and the 18th of the month. (The National
Weather Summary) (Storm Data)

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