A joint service of the UK Ag Weather Center and the National Weather Service.
Today and tonight.
With high pressure in place and winds remaining very light, patchy
fog will remain possible through 8 AM near rivers and in low-lying
areas. Temperatures this afternoon should recover from the cold
start this morning, and widespread 50s are expected due to
southwesterly low-level flow and warm advection. High clouds will
continue to overspread the region through the afternoon, but these
clouds are not expected to substantially limit daytime heating. The
surface pressure gradient will tighten tonight as high pressure
shifts toward the Atlantic Coast, while low pressure develops across
Texas. Radiational cooling should be maximized in the first few
hours after sunset, and a slow increase in temperatures may commence
around midnight and continue through daybreak on Thursday. Sheltered
locations in our northeastern counties may reach the mid 30s, but
most locations should bottom out in the low to mid 40s.
Thursday through Saturday.
An upper level trough digs through the Central Plains early
Thursday. An associated surface low slides through the Southern
Plains and into the ArkLaTex by Thursday afternoon. A pre-frontal
shortwave trough will eject eastward into Central AL, increasing
rain chances in the far western counties by Thursday afternoon and
The upper level low continue to strengthen late Thursday evening and
into the overnight hours. As this takes place, the pre-frontal
shortwave moves through Central AL, leading to widespread rain
across the area. The surface low is still just to our west in the
Lower MS River Valley, so this will increase the pressure gradient
across Central AL, leading to gusty winds accompanying the
widespread rain. Instability really doesn't make it into the area
during this time, so we shouldn't have any thunderstorm development.
During the day on Friday, the vertically stacked low pressure system
continues to slide through Southern MS, reaching Central AL by
Friday evening. This will steadily decrease rain chances from south-
southwest to northeast throughout the day as much of the forcing is
lifted to our north and east. However, with the upper low directly
overhead, I can't rule out some lingering shower activity. Also,
elevated instability works its way into the area Friday afternoon
with models picking up on a dry slot inching into the area.
Considering I'm keeping PoPs in the 50-60% range Friday afternoon,
tapering to 30-45% in the evening, I've kept mention of a slight
chance for a few thunderstorms, but these will remain well below
The low pressure system is lifting just to our north and east by
Saturday morning, so we'll see continued clearing of rain chances
from south to north across the area with only a slight chance of
lingering showers in the far northeast Saturday evening due to the
possibility of some wrap-around moisture. Temperatures remain
well above freezing with this system, so all precip should be in
Sunday thru Thursday morning.
Upper level troughing will swing eastward across the Great Lakes
region and New England states on Monday. Upper level waves
associated with this will pass through the northern part of
Central Alabama. Currently guidance suggests a lack of moisture
return. Therefore, have not included mentionable PoPs for Monday.
Upper level riding begins to build into the area on Monday evening
and surface high pressure is centralized over Alabama by Tuesday.
This will aid in relatively dry conditions for the start of the
work week. High pressure remains in the area on Wednesday and
begins to move out Wednesday evening/overnight as the upper level
pattern begins to flat across the eastern U.S.
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
900 AM CST WED DEC 12 2018
CITY SKY/WX TMP DP RH WIND PRES REMARKS
BIRMINGHAM CLOUDY 43 33 68 CALM 30.28F
MONTGOMERY FAIR 40 34 79 CALM 30.30F
SHELBY CO ARPT FAIR 37 31 78 S5 30.26F WCI 33
MAXWELL AFB FAIR 37 36 96 CALM 30.29F
GREENVILLE FAIR 40 34 79 S3 30.29F
SELMA FAIR 37 34 87 CALM 30.30R
PRATTVILLE FAIR 33 33 100 CALM 30.30S
BESSEMER FAIR 40 30 67 S6 30.26F
TALLADEGA FAIR 34 31 88 CALM 30.28S
PELL CITY SUNNY 34 34 100 CALM 30.29S
MARION FAIR 36 36 98 S8 30.28R WCI 30
SYLACAUGA FAIR 36 36 100 CALM 30.28S
Current Agricultural Weather Conditions in Alabama
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
852 AM CST Wed Dec 12 2018
DAY ONE Outlook through Tonight.
No hazardous weather is expected at this time.
DAYS TWO THROUGH SEVEN Thursday through Tuesday.
No hazardous weather is expected at this time.
SPOTTER INFORMATION STATEMENT
Activation of storm spotters and emergency management is not
expected at this time.
NWS Severe Weather Map , Convective Outlook
7-Day Forecast For JEFFERSON County, Alabama
830 AM CST Wed Dec 12 2018
Partly cloudy early in the morning then becoming mostly
cloudy. Highs in the mid 50s. South winds around 5 mph.
TONIGHT Mostly cloudy. Lows in the lower 40s. South winds
around 5 mph.
THURSDAY Cloudy. A 20 percent chance of rain showers in the
afternoon. Highs in the upper 50s. Southeast winds 10 to 15 mph.
THURSDAY NIGHT Rain showers. Near steady temperature around
50. East winds 10 to 15 mph. Chance of rain 90 percent.
FRIDAY Rain showers likely and slight chance of thunderstorms.
Highs in the mid 50s. South winds 10 to 15 mph. Chance of rain
FRIDAY NIGHT Cloudy. Chance of rain showers and slight chance
of thunderstorms in the evening, then chance of rain showers
after midnight. Lows in the mid 40s. Chance of rain 50 percent.
SATURDAY Cloudy with a 40 percent chance of rain showers.
Highs in the lower 50s.
SATURDAY NIGHT Mostly cloudy with a 20 percent chance of rain
showers. Lows around 40.
SUNDAY Partly cloudy. Highs in the upper 50s.
SUNDAY NIGHT Partly cloudy. Lows in the upper 30s.
MONDAY Partly cloudy. Highs in the mid 50s.
MONDAY NIGHT Mostly clear. Lows in the mid 30s.
TUESDAY Mostly sunny. Highs in the mid 50s.
12-48 Hr Surface Forecast Maps,
TWC 4-Panel Surface Forecast,
Day 1 Precip,
Day 2 Precip,
Days 1-5 Precip,
Severe Weather Pot.-Day 1,
Medium & Long Range Outlook For Alabama
6 TO 10 DAY 8 TO 14 DAY 30 DAY 90 DAY
DEC 17-21 DEC 19-25 DEC DEC18-FEB19
----------- ----------- -------- ---------
Temperature: Above Above Normal Normal
Precipitation: Below Above Above Above
.... Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast,
6 to 10 Day ,
8 to 14 Day ,
Wednesday December 12, 2018 the 346th Day of Year
Distance 0.999724 AU
Rise 07:43 EST Set 17:41 EST
Transit Meridian 12:42 EST
Civil Twilight Begins 07:17 EST Ends 18:07 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
HISTORIC WEATHER EVENTS
Portland OR was drenched with 7.66 inches of rain, a record 24 hour total
for that location. (12th-13th) (The Weather Channel)
The first of three Middle Atlantic snowstorms produced a foot of snow at
Baltimore MD. A pre-winter blizzard struck the northeastern U.S. producing
wind gusts as high as 51 mph, along with 16 inches of snow at Nantucket MA,
and 20 inches at Newark NJ. (David Ludlum)
The worst tornado of record for western Washington State tracked south of
Seattle, traveling five miles, from Des Moines to Kent. The tornado, 50 to
200 yards in width, began as a waterspout over Puget Sound. One person was
injured and the tornado caused half a million dollars damage. (The Weather
While a developing winter storm began to spread snow across New Mexico into
Colorado, high winds ushered unseasonably cold air into the southwestern
states. Winds in California gusted to 60 mph in the Sacramento River Delta,
and in the San Bernardino Valley. (The National Weather Summary)
Cold arctic air spread from the Great Lakes Region to the Appalachian
Region. Twenty-five cities, mostly in the northeastern U.S., reported
record low temperatures for the date. The low of 12 degrees below zero at
Albany NY was their coldest reading of record for so early in the season.
Saranac Lake NY was the cold spot in the nation with a low of 28 degrees
below zero. (The National Weather Summary)
A winter storm produced snow from northern Mississippi to the Middle
Atlantic Coast, with 10.5 inches reported at Powhatan VA. Heavy snow
whitened the Black Hills of South Dakota, with 36 inches reported at Deer
Mountain. Thirteen cities in the north central U.S., from Minnesota to
Texas, reported record low temperatures for the date, including Duluth MN
and Yankton SD with morning lows of 22 degrees below zero. (The National
Weather Summary) (Storm Data)
Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky