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Clarke County, AL 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





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


.DISCUSSION...
Updated for severe weather threats on Friday night and Saturday.

An upper-level trough over the Great Lakes an attendant swath of 
northwesterly 40-60kt 500mb flow will have an unusual impact (for
July) on our forecast area Friday night and Saturday. A synoptic 
cold front located near the Ohio River should be the focus for 
explosive thunderstorm development late Friday afternoon. This 
activity should grow upscale in the presence of SBCAPE values of 
4000-6000 J/kg and move southward into TN during the evening. It 
appears that relatively lower amounts of boundary layer moisture 
will be present over much of Alabama on Friday afternoon due to 
low-level diffluence. This should begin to change during the 
evening as the surface to 850mb wind fields respond to the 
approaching upper-level jet streak. A mesolow associated with the
MCS may also enhance moisture transport especially across West 
Alabama, leading to SBCAPE values of 3000-4000 J/kg as the MCS 
arrives. This amount of instability combined with 500mb flow of 
35-45kt should help maintain an enhanced damaging wind into the 
northwestern part of the CWA, and possibly all the way to our 
southern border through early Saturday morning. The damaging wind 
threat may diminish with eastward extent due to lower CAPE values.

Another round of severe storms is possible on Saturday if the 
airmass recovers. This will depend on the strength and placement 
of the cold pool resulting from the MCS Friday night into Saturday
morning. Models suggest low-level westerly flow will become 
established Saturday afternoon as 50-55kt northwesterly 500mb flow
overspreads this area. This may result in quality moisture 
advection and SBCAPE values of 3500-4500 J/kg. Weak surface 
convergence and boundaries leftover from prior convection could 
serve to spark isolated to scattered supercell thunderstorm 
development Saturday afternoon and evening. In addition to 
damaging winds and quarter size hail, strongly veering surface to 
700mb flow would support some tornado risk as well. The overall 
setup is highly conditional, and forecast confidence is low at 
this time. 

87/Grantham


Alabama Forecast Discussion (NWS)
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 CLARKE County
300 AM CDT FRI JUL 20 2018
INTERIOR SOUTHWEST AND SOUTH CENTRAL ALABAMA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
GREENVILLE     FAIR      73  69  87 CALM      29.90F FOG              
EVERGREEN      CLOUDY    75  73  93 CALM      29.91F                  
ATMORE*          N/A    N/A N/A N/A N5        30.59F                  
ANDALUSIA/OPP  MOCLDY    76  72  87 SE3       29.89F FOG              
ANDALUSIA*       N/A    N/A N/A N/A S2        29.89F                  
FLORALA APT    FOG       74  72  93 CALM      29.92F VSB 3/4          
FLORALA*         N/A     73  73 100 CALM      30.56F                  

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


Current Agricultural Weather Conditions in Alabama
Based on observations at 300am CDT, Friday July 20, 2018

Across Alabama...temperatures are near 73 degrees north, near 73 degrees central, and near 75 degrees south. Current sky conditions are fair north, fair central, and fair south. In the north, relative humidity is near 93%, and the dew point is near 71 degrees. In the central part of the state, relative humidity is near 87%, and the dew point is near 69 degrees. In the south, relative humidity is near 93%, and the dew point is near 73 degrees. The livestock heat stress category is no stress north, no stress central, and no stress south. Winds are from the southeast at 3 mph north, where conditions are favorable for spraying. Winds are from the northeast at 5 mph central, where conditions are favorable for spraying. Winds are from the west at 5 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 78 degrees at Brookely Field. The lowest temperature is 71 degrees at Gadsden and Alexander City.


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.

U.S. Radar Map, All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For CLARKE County, AL

1058 PM CDT Thu Jul 19 2018

 DAY ONE  Tonight.

No hazardous weather expected. 

 DAYS TWO THROUGH SEVEN  Friday through Wednesday.

Scattered strong to marginally severe storms are expected Saturday
into Saturday evening.

Heat index values of 103 to 108 degrees, and locally near 110
degrees can be expected Friday. Higher heat index readings in the
107 to 112 degree range with locally higher values will be 
possible Saturday and Sunday. Heat Advisories may become necessary
across portions of the region, especially during the weekend.

Increasing winds and swell will bring a moderate risk of dangerous 
rip currents to area beaches Saturday through Monday.

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not expected at this time.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For CLARKE County, Alabama
351 AM CDT Fri Jul 20 2018

TODAY
Mostly sunny with a 20 percent chance of showers and thunderstorms. Highs in the mid 90s. Northeast winds up to 5 mph shifting to the northwest in the afternoon. Heat index readings around 107.

TONIGHT
Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 70s. South winds up to 5 mph.

SATURDAY
Partly sunny with a 20 percent chance of showers and thunderstorms. Highs in the mid 90s. Southwest winds up to 10 mph. Heat index readings around 107.

SATURDAY NIGHT
Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 70s. Southwest winds 5 to 10 mph.

SUNDAY
Mostly sunny. Highs in the mid 90s. West winds 5 to 10 mph. Heat index readings around 106.

SUNDAY NIGHT
Mostly clear. Lows in the lower 70s.

MONDAY
Mostly sunny with a 30 percent chance of showers and thunderstorms. Highs in the lower 90s.

MONDAY NIGHT
Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 70s.

TUESDAY
Mostly sunny with a 40 percent chance of showers and thunderstorms. Highs in the lower 90s.

TUESDAY NIGHT
Mostly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 70s.

WEDNESDAY
Partly sunny with a 50 percent chance of showers and thunderstorms. Highs in the lower 90s.

WEDNESDAY NIGHT
Mostly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the lower 70s.

THURSDAY
Showers and thunderstorms likely. Highs around 90. Chance of precipitation 60 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 Alabama
                              ALABAMA                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   JUL 25-29 JUL 27-AUG 2    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Above      Above                      
 Precipitation:      Above        Above     Normal     Normal                      

....  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 20.470000
Distance 0.999716 AU
Rise 06:53 EDT Set 20:56 EDT
Transit Meridian 13:54 EDT
Civil Twilight Begins 06:26 EDT Ends 21:23 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