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Jefferson County, AL Weather and Climate Synopsis

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36 Hr. Forecast Map
All Radar images NOAA/UKAWC
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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

US Weekly Temperature Departure
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A joint service of the UK Ag Weather Center and the National Weather Service.

Gradient winds will once again be brisk, but should remain just 
below advisory criteria. Will need to monitor through the morning 
for any changes here. High pressure will begin to build into the 
area late afternoon into the evening and winds will begin to relax 
quite a bit. Overnight the high will slide into western Tennessee 
and we will see almost calm winds area wide. Dewpoints will remain 
high in regards to the temperatures so a frost will be possible 
across the area. Areas across the north will drop to or just below 
freezing, so a Freeze Warning has been issued. A Frost Advisory has 
been issued for the rest of the counties, with reading of just above 
32 to 36 degrees. 


Thursday through Wednesday.

A highly amplified pattern sets up through the end of the week with 
troughing along the East Coast and Ridging sliding through the 
center CONUS. Surface high pressure will build in across the Gulf 
States Thursday and Friday leading to drier weather and mild temps 
for Central AL. Later Friday evening/night, a surface low slides 
through the Central Plains and into the Ohio River Valley, 
stretching a cold front through the MS and TN River Valleys. This 
cold front will push north to south through Central AL Saturday and 
Sunday bringing a chance for rain. Moisture return ahead of the 
front looks limited, and instability is minimal, so have taken out 
mention for thunderstorms and carried Chance PoPs in the forecast 
for the weekend.

The highly amplified pattern continues for early next week as a 
strong low upper level trough dips into the Great Basin on Monday 
while ridging builds in, once again, over the Gulf States. High 
pressure sets up around the middle of next week with the trough 
still off to the west. This could lead to isentropic lift and 
increased rain chances for the MS River Valley. This could spread 
into the TN Valley and into northern portions of Central AL by 
midweek, but confidence isn't high this far in advance, so have gone 
with 50% chance of rain for now. 

Otherwise, mild temperatures expected for the remainder of this 
week, through the weekend, and into early next week. 


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 JEFFERSON County
600 AM CDT WED MAR 21 2018
BIRMINGHAM     FAIR      37  34  89 W7        29.96R WCI  32          
MONTGOMERY     CLOUDY    42  35  76 W7        29.97R                  
SHELBY CO ARPT FAIR      37  35  92 W5        29.94R WCI  33          
MAXWELL AFB    CLOUDY    42  34  73 W5        29.95R                  
GREENVILLE     CLOUDY    43  35  73 W5        29.96R                  
SELMA          CLOUDY    43  37  81 W5        29.98R                  
PRATTVILLE     CLOUDY    40  35  80 W5        29.96R                  
BESSEMER       FAIR      35  33  92 NW7       29.95R WCI  29          
TALLADEGA      FAIR      37  33  84 W7        29.92R WCI  32          
PELL CITY      SUNNY     36  34  93 SW6       29.93R WCI  31          
MARION         FAIR      42  38  89 CALM      29.98R                  
SYLACAUGA      FAIR      35  35 100 W6        29.93R WCI  30          

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

Current Agricultural Weather Conditions in Alabama
Based on observations at 500am CDT, Wednesday March 21, 2018

Across Alabama...temperatures are near 36 degrees north, near 37 degrees central, and near 45 degrees south. Current sky conditions are fair north, fair central, and fair south. In the north, relative humidity is near 82%, and the dew point is near 31 degrees. In the central part of the state, relative humidity is near 89%, and the dew point is near 34 degrees. In the south, relative humidity is near 89%, and the dew point is near 42 degrees. Winds are from the west at 10 mph north, where conditions are favorable for spraying. The wind chill is near 28 degrees north. Winds are from the west at 8 mph central, where conditions are favorable for spraying. The wind chill is near 31 degrees central. Winds are from the west at 6 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 49 degrees at Brookely Field. The lowest temperature is 35 degrees at Muscle Shoals and Huntsville.

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 JEFFERSON County, AL

311 AM CDT Wed Mar 21 2018

 DAY ONE  Outlook Through Tonight.

Freezing temperatures expected tonight and into Thursday morning for
portions of North Central Alabama. Frost is likely for all of Central

 DAYS TWO THROUGH SEVEN  Thursday through Tuesday.

No hazardous weather is expected at this time.


Activation of storm spotters and emergency management are not
expected at this time. 

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For JEFFERSON County, Alabama
602 AM CDT Wed Mar 21 2018


Partly cloudy. Highs in the mid 50s. Northwest winds 10 to 20 mph.

Clear. Areas of frost after midnight. Lows in the lower 30s. Northwest winds 5 to 10 mph.

Sunny. Areas of frost in the morning. Highs in the lower 60s. Northwest winds 5 to 10 mph.

Mostly clear in the evening then becoming mostly cloudy. Lows in the lower 40s. North winds around 5 mph in the evening then becoming light.

Partly cloudy. Highs in the mid 60s. South winds around 5 mph.

Mostly cloudy. Lows in the lower 50s.

Mostly cloudy in the morning then becoming partly cloudy. A 20 percent chance of rain showers. Highs in the mid 70s.

Mostly cloudy with a 40 percent chance of rain showers. Lows in the upper 50s.

Mostly cloudy with a 20 percent chance of rain showers. Highs in the lower 70s.

Mostly cloudy with a 40 percent chance of rain showers. Lows in the lower 50s.

Cloudy with a 30 percent chance of rain showers. Highs in the mid 60s.

Cloudy with a 20 percent chance of rain showers. Lows in the lower 50s.

Mostly cloudy with a 20 percent chance of rain showers. Highs around 70.

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
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   MAR 26-30 MAR 28-APR 3    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above     Normal      Above                      
 Precipitation:      Above        Above      Above     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

Wednesday March 21, 2018 the 80th Day of Year

Declination 0.620000
Distance 0.999721 AU
Rise 06:50 EDT Set 19:01 EDT
Transit Meridian 12:54 EDT
Civil Twilight Begins 06:26 EDT Ends 19:25 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

A tornado swarm occurred in the Deep South. Between late afternoon and
early the next morning severe thunderstorms spawned 31 tornadoes in
Alabama, Mississippi, Georgia and Tennessee. The tornadoes killed 334
persons and injured 1784 others. Northern Alabama was hardest hit.
Tornadoes in Alabama killed 286 persons and caused five million dollars
damage. (David Ludlum)
Severe thunderstorms spawned thirty-one tornadoes across Arkansas,
Tennessee, Missouri, Mississippi, Alabama and Kentucky. The tornadoes
killed 343 persons and caused 15 million dollars damage. Arkansas and
Tennessee each reported thirteen tornadoes. The towns of Judsonia AR and
Henderson TN were nearly wiped off the map in what proved to be the worst
tornado outbreak of record for Arkansas. A tornado, one and a half miles
wide at times, left a church the only undamaged building at Judsonia.
(David Ludlum) (The Weather Channel)

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