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Cobb County, GA Weather and Climate Synopsis

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Regional Hourly Observations For COBB County
Issued at 700 AM EDT MON APR 21 2025

NORTH GEORGIA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ATLANTA        PTCLDY    63  56  78 SE3       30.17S TC  17           
ATHENS         PTCLDY    58  55  90 CALM      30.19R TC  14           
CHAMBLEE       PTCLDY    56  54  93 CALM      30.17S TC  13           
PEACHTREE CITY MOCLDY    56  55  97 CALM      30.18R TC  13           
ROME           CLEAR     58  56  93 CALM      30.13S TC  14           
WEST ATLANTA   PTCLDY    58  55  90 CALM      30.16S TC  14           
GAINESVILLE    CLOUDY    63  53  70 CALM      30.20S TC  17           
CARTERSVILLE     N/A     59  57  94 E5        30.16R TC  15           

  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DALTON*        CLEAR     63  60  90 CALM      30.13R TC  17           
LAWRENCEVILLE* PTCLDY    58  58 100 CALM      30.19S TC  14           
MARIETTA       PTCLDY    60  56  85 CALM      30.15S TC  16           
KENNESAW*      PTCLDY    59  56  89 CALM      30.18S TC  15           
CANTON*        CLOUDY    61  56  84 E5        30.19R TC  16           
BLAIRSVILLE*   MOCLDY    58  54  84 CALM      30.20S TC  15           

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


Current Agricultural Weather Conditions in Georgia
Based on observations at 700am EDT, Monday April 21, 2025

Across Georgia...temperatures are near 63 degrees north, near 58 degrees central, and near 63 degrees south. Current sky conditions are partly cloudy north, mostly cloudy central, and mostly cloudy south. In the north, relative humidity is near 78%, and the dew point is near 56 degrees. In the central part of the state, relative humidity is near 100%, and the dew point is near 58 degrees. In the south, relative humidity is near 90%, and the dew point is near 60 degrees. Winds are from the southeast at 3 mph north, where conditions are favorable for spraying. Winds are from the east at 6 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 66 degrees at Saint Simons. The lowest temperature is 56 degrees at Peachtree City, LaGrange, Chamblee, , , , , , and .


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 COBB County,GA

442 AM EDT Mon Apr 21 2025

 DAY ONE  Today and Tonight  

Isolated thunderstorms will be possible this afternoon and evening
across portions of north Georgia. A few storms may be capable of
an isolated damaging wind gust in far NW GA, where a Marginal Risk
of severe thunderstorms (Level 1 out of 5) is in effect.

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday  

Isolated thunderstorms are forecast for Tuesday through Saturday 
across portions of north and central Georgia, with highest chances
across north Georgia. Widespread severe storms are not expected 
at this time.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed through tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For COBB County, GA
Issued at 357 AM EDT Mon Apr 21 2025

TODAY
Mostly sunny. Highs in the mid 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph.

TONIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Light West winds. Chance of rain 50 percent.

TUESDAY
Showers likely with a chance of thunderstorms. Highs around 80. Light West winds. Chance of rain 70 percent.

TUESDAY NIGHT
Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the lower 60s. Light Northwest winds in the evening, becoming light and variable. Chance of rain 40 percent.

WEDNESDAY
Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Light Southeast winds, becoming south around 5 mph in the afternoon. Chance of rain 70 percent.

WEDNESDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of rain 30 percent.

THURSDAY
Mostly cloudy in the morning, then becoming partly sunny. A slight chance of thunderstorms. A slight chance of showers in the morning, then showers likely in the afternoon. Highs in the lower 80s. Chance of rain 60 percent.

THURSDAY NIGHT
Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the lower 60s. Chance of rain 40 percent.

FRIDAY
Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

FRIDAY NIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Chance of rain 50 percent.

SATURDAY
Partly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent.

SATURDAY NIGHT
Partly cloudy. Lows around 60.

SUNDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 20 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 
               APR 26-APR 30 APR 28-MAY 4    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above                                            
 Precipitation:     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


Historical Weather And Climate Facts For Today

APRIL 21ST
HISTORIC WEATHER EVENTS
...1958...
Portions of Montana were in the midst of a spring snowburst. Snowfall
amounts ranged up to 55 inches at Red Lodge, 61 inches at Nye Mine, and 72
inches at Mystic Lake. (David Ludlum)
...1967...
Severe thunderstorms spawned 48 tornadoes in the Upper Midwest. Hardest hit
was northern Illinois where sixteen tornadoes touched down during the
afternoon and evening hours causing fifty million dollars damage. On that
Friday afternoon tornadoes struck Belvidere IL, and the Chicago suburb of
Oak Lawn, killing 57 persons. (David Ludlum)
...1980...
The temperature at International Falls MN hit 90 degrees. (The National
Weather Summary)


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