Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 34
NWS Storm Prediction Center Norman OK
435 PM CST Wed Feb 12 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern and Central Alabama
Southern Middle Tennessee
* Effective this Wednesday afternoon from 435 PM until Midnight
CST.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...A line of thunderstorms over eastern Mississippi will
track eastward across the watch area this afternoon and evening,
posing a risk of locally damaging wind gusts. A brief tornado
cannot be ruled out in the region as well.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 25 miles north of
Huntsville AL to 40 miles south southeast of Tuscaloosa AL. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
24040.
...Hart
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 34
NWS Storm Prediction Center Norman OK
435 PM CST Wed Feb 12 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern and Central Alabama
Southern Middle Tennessee
* Effective this Wednesday afternoon from 435 PM until Midnight
CST.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY...A line of thunderstorms over eastern Mississippi will
track eastward across the watch area this afternoon and evening,
posing a risk of locally damaging wind gusts. A brief tornado
cannot be ruled out in the region as well.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 25 miles north of
Huntsville AL to 40 miles south southeast of Tuscaloosa AL. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU4).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 450. Mean storm motion vector
24040.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 34 SEVERE TSTM AL TN 122235Z - 130600Z
AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
25N HSV/HUNTSVILLE AL/ - 40SSE TCL/TUSCALOOSA AL/
..AVIATION COORDS.. 50NM E/W /39ENE MSL - 59WNW MGM/
HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 24040.
LAT...LON 35008581 32688641 32688830 35008775
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 34 Status Report Messages:
STATUS REPORT #4 ON WW 34
VALID 130225Z - 130340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE CBM TO
30 NNW TCL TO 40 NW BHM TO 25 SE HSV TO 45 WSW CHA TO 15 WSW CHA.
..BENTLEY..02/13/20
ATTN...WFO...BMX...HUN...
&&
STATUS REPORT FOR WS 34
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC007-009-019-043-049-055-057-063-065-073-095-107-115-117-119-
125-127-130340-
AL
. ALABAMA COUNTIES INCLUDED ARE
BIBB BLOUNT CHEROKEE
CULLMAN DEKALB ETOWAH
FAYETTE GREENE HALE
JEFFERSON MARSHALL PICKENS
ST. CLAIR SHELBY SUMTER
TUSCALOOSA WALKER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 34
VALID 130125Z - 130240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSE CBM
TO 30 E CBM TO 50 NW BHM TO 20 SSW HSV TO 20 E HSV TO 45 ENE HSV
TO 45 NW CHA.
..BENTLEY..02/13/20
ATTN...WFO...BMX...HUN...
&&
STATUS REPORT FOR WS 34
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC007-009-019-043-049-055-057-063-065-071-073-095-107-115-117-
119-125-127-130240-
AL
. ALABAMA COUNTIES INCLUDED ARE
BIBB BLOUNT CHEROKEE
CULLMAN DEKALB ETOWAH
FAYETTE GREENE HALE
JACKSON JEFFERSON MARSHALL
PICKENS ST. CLAIR SHELBY
SUMTER TUSCALOOSA WALKER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 34
VALID 130030Z - 130140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 ESE CBM TO
30 ENE CBM TO 50 NE CBM TO 30 SSE MSL TO 20 WNW HSV TO 50 N HSV.
..BENTLEY..02/13/20
ATTN...WFO...BMX...HUN...
&&
STATUS REPORT FOR WS 34
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC007-009-019-043-049-055-057-063-065-071-073-075-079-083-089-
095-103-107-115-117-119-125-127-133-130140-
AL
. ALABAMA COUNTIES INCLUDED ARE
BIBB BLOUNT CHEROKEE
CULLMAN DEKALB ETOWAH
FAYETTE GREENE HALE
JACKSON JEFFERSON LAMAR
LAWRENCE LIMESTONE MADISON
MARSHALL MORGAN PICKENS
ST. CLAIR SHELBY SUMTER
TUSCALOOSA WALKER WINSTON
$$
TNC051-103-127-130140-
TN
. TENNESSEE COUNTIES INCLUDED ARE
FRANKLIN LINCOLN MOORE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 34
VALID 122355Z - 130040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE CBM
TO 40 E TUP TO 20 SSW MSL TO 5 E MSL TO 50 NNE MSL.
..BENTLEY..02/12/20
ATTN...WFO...BMX...HUN...
&&
STATUS REPORT FOR WS 34
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC007-009-019-043-049-055-057-059-063-065-071-073-075-079-083-
089-093-095-103-107-115-117-119-125-127-133-130040-
AL
. ALABAMA COUNTIES INCLUDED ARE
BIBB BLOUNT CHEROKEE
CULLMAN DEKALB ETOWAH
FAYETTE FRANKLIN GREENE
HALE JACKSON JEFFERSON
LAMAR LAWRENCE LIMESTONE
MADISON MARION MARSHALL
MORGAN PICKENS ST. CLAIR
SHELBY SUMTER TUSCALOOSA
WALKER WINSTON
$$
TNC051-103-127-130040-
TN
. TENNESSEE COUNTIES INCLUDED ARE
FRANKLIN LINCOLN MOORE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (<5%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.
weather.gov 
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