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Gwinnett County, GA Weather and Climate Synopsis

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Regional Hourly Observations For GWINNETT County
Issued at 100 AM EST MON DEC 18 2017

NORTH GEORGIA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ATLANTA        CLOUDY    47  46  97 E3        30.16F                  
6HR MIN TEMP:  45; 6HR MAX TEMP:  47; 6HR PCP: TRACE;                

ATHENS         CLOUDY    47  44  90 CALM      30.17F                  
6HR MIN TEMP:  45; 6HR MAX TEMP:  47; 6HR PCP: TRACE;                

CHAMBLEE       CLOUDY    46  44  93 CALM      30.16F FOG              
6HR MIN TEMP:  45; 6HR MAX TEMP:  46; 6HR PCP: TRACE;                

PEACHTREE CITY CLOUDY    48  46  93 CALM      30.17F                  
6HR MIN TEMP:  47; 6HR MAX TEMP:  48; 6HR PCP:  0.01;                

ROME           FOG       44  44 100 W5        30.17S VSB 3/4          
6HR MIN TEMP:  43; 6HR MAX TEMP:  44;                                

WEST ATLANTA   CLOUDY    47  47 100 CALM      30.17S FOG              
6HR MIN TEMP:  45; 6HR MAX TEMP:  47; 6HR PCP: TRACE;                

GAINESVILLE    CLOUDY    46  46 100 CALM      30.17S FOG              
6HR MIN TEMP:  43; 6HR MAX TEMP:  46; 6HR PCP: TRACE;                

CARTERSVILLE   CLOUDY    46  45  96 CALM      30.18S                  
6HR MIN TEMP:  45; 6HR MAX TEMP:  46;                                


  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DALTON*        CLOUDY    43  43 100 CALM      30.18S FOG              
LAWRENCEVILLE* CLOUDY    45  45 100 CALM      30.16S FOG              
MARIETTA       DRIZZLE   46  45  93 NE3       30.15F FOG              
KENNESAW*      CLOUDY    44  43  96 CALM      30.17F                  
CANTON*        FOG       45  45 100 CALM      30.17S VSB 1/2          

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


Current Agricultural Weather Conditions in Georgia
Based on observations at 100am EST, Monday December 18, 2017

Across Georgia...temperatures are near 47 degrees north, near 56 degrees central, and near 64 degrees south. Current sky conditions are cloudy north, cloudy central, and partly cloudy south. In the north, relative humidity is near 97%, and the dew point is near 46 degrees. In the central part of the state, relative humidity is near 74%, and the dew point is near 48 degrees. In the south, relative humidity is near 90%, and the dew point is near 61 degrees. Winds are from the east at 3 mph north, where conditions are favorable for spraying. Winds are calm central, where conditions are favorable for spraying. Winds are from the southwest at 3 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 68 degrees at Bainbridge. The lowest temperature is 43 degrees at Dalton.


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 GWINNETT County,GA

645 PM EST Sun Dec 17 2017

 DAY ONE  Tonight  

Patchy dense fog, with visibilities of 1/4 mile or less, will be 
possible after midnight tonight. 


 DAYS TWO THROUGH SEVEN  Monday through Saturday  

Unsettled weather will persist for much of this period. The 
potential for locally heavy rainfall is increasing, especially for 
Wednesday and into next weekend. Localized flooding will be 
possible. 


 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed through tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For GWINNETT County, GA
Issued at 1031 PM EST Sun Dec 17 2017

REST OF TONIGHT
Cloudy with a chance of rain and patchy drizzle this late evening and early morning, then areas of drizzle and slight chance of rain late. Patchy dense fog this late evening and early morning, then areas of fog late. Near steady temperature in the mid 40s. light Northeast winds. Chance of rain 30 percent.

MONDAY
Mostly cloudy. Areas of fog and drizzle in the morning, then a chance of showers in the afternoon. Highs around 60. West winds 5 to 10 mph. Chance of rain 30 percent.

MONDAY NIGHT
Mostly cloudy with a chance of rain in the evening. Lows in the upper 40s. light West winds. Chance of rain 30 percent.

TUESDAY
Mostly cloudy with a slight chance of rain in the morning, then a chance of rain in the afternoon. Highs in the mid 60s. West winds 5 to 10 mph. Chance of rain 50 percent.

TUESDAY NIGHT
A chance of rain in the evening, then rain likely after midnight. Lows in the upper 50s. Southwest winds 5 to 10 mph. Chance of rain 60 percent.

WEDNESDAY
Rain. Highs in the mid 60s. Chance of rain 80 percent.

WEDNESDAY NIGHT
Mostly cloudy with a chance of rain. Lows in the upper 40s. Chance of rain 40 percent.

THURSDAY
Partly sunny. Highs in the mid 50s.

THURSDAY NIGHT
Mostly cloudy with a slight chance of light rain. Lows in the mid 40s. Chance of rain 20 percent.

FRIDAY
Mostly cloudy with a chance of rain. Highs in the upper 50s. Chance of rain 40 percent.

FRIDAY NIGHT
Cloudy with a chance of rain. Lows in the upper 40s. Chance of rain 50 percent.

SATURDAY
Cloudy with a chance of rain. Highs in the lower 60s. Chance of rain 50 percent.

SATURDAY NIGHT
Cloudy with a chance of rain. Lows in the mid 40s. Chance of rain 50 percent.

SUNDAY
Cloudy with a chance of rain. Highs in the mid 50s. Chance of rain 40 percent.

ETA Surface Forecast Maps, AVN 6-Panel 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 Georgia
                              GEORGIA                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 23-27 DEC 25-DEC 31    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Above       Normal      Above      Above                      
 Precipitation:     Normal       Normal      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

Monday December 18, 2017 the 352th Day of Year

---------------------------------------------------
SUN
Declination -23.410000
Distance 0.999725 AU
Rise 07:33 EST Set 17:31 EST
Transit Meridian 12:32 EST
Civil Twilight Begins 07:06 EST Ends 17:58 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 18TH
HISTORIC WEATHER EVENTS
...1957...
A tornado swept across Jackson County, Williamson County and Franklin
County in southern Illinois killing eleven persons. (David Ludlum)
...1981...
A heavy lake-effect snow blanketed the southern and southeast shores of
Lake Michigan leaving up to 22 inches of snow at Valparaiso IND. (David
Ludlum)
...1983...
Record cold hit the north central states. At Havre MT the mercury plunged
to a record reading of 34 degrees below zero. (Sandra and TI Richard
Sanders - 1987)
...1984...
A storm over southern California left up to 16 inches of snow in the
mountains and upper deserts, with 13 inches reported at Lancaster. Edwards
Air Force Base was closed, and Interstate 5 was closed from Castaic to the
Tehachapis Mountains. (18th-19th) (The Weather Channel)
...1986...
A strong winter storm, which developed off the coast of New Jersey and
moved out to sea, lashed the northeastern U.S. with high winds, heavy rain,
and heavy snow. The storm left snowfall amounts of up to 30 inches in
Vermont, 24 inches in Massachusetts, and 20 inches in New Hampshire. The
highest rainfall amounts approached four inches in southern New England,
where winds gusted to 70 mph. (Storm Data)
...1987...
A weakening storm moved into the Rocky Mountain Region producing six inches
of snow at the Platoro Reservoir in the San Juan Mountains of Colorado. The
storm then spread rain and drizzle across the Southern High Plains into the
Middle Mississippi Valley, with thunderstorms over Texas. (Storm Data) (The
National Weather Summary)
...1988...
Warm weather prevailed in the central U.S. while cool weather prevailed
across the eastern states. Sheridan WY, with a record warm afternoon high
of 68 degrees, was seven degrees warmer than Key West FL. (The National
Weather Summary)
...1989...
A winter storm moving out of the Great Plains Region spread freezing rain,
sleet and snow across parts of the southeastern U.S. Freezing rain resulted
in 170 auto accidents in the Memphis area during the evening hours.
Unseasonably warm weather continued ahead of arctic cold front. Miami FL
equalled their record for December with an afternoon high of 87 degrees.
(Storm Data) (The National Weather Summary)

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