Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 109
NWS Storm Prediction Center Norman OK
320 PM CDT Sun Apr 12 2020
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Northern and central Alabama
Far southern Middle Tennessee
* Effective this Sunday afternoon and evening from 320 PM until
1000 PM CDT.
* Primary threats include...
Several tornadoes and a couple intense tornadoes likely
Widespread damaging winds and isolated significant gusts to 80
mph likely
Isolated very large hail events to 2 inches in diameter possible
SUMMARY...Clusters of severe thunderstorms will spread
east-northeast from Mississippi through this evening. Greatest
tornado threat will exist across west-central to north-central
portions of Alabama into early evening.
The tornado watch area is approximately along and 85 statute miles
north and south of a line from 45 miles northwest of Tuscaloosa AL
to 30 miles east northeast of Gadsden AL. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU9).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 106...WW 107...WW 108...
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 25045.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 109 TORNADO AL TN 122020Z - 130300Z
AXIS..85 STATUTE MILES NORTH AND SOUTH OF LINE..
45NW TCL/TUSCALOOSA AL/ - 30ENE GAD/GADSDEN AL/
..AVIATION COORDS.. 75NM N/S /21NE IGB - 54SSW GQO/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 25045.
LAT...LON 34918817 35378560 32918560 32458817
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 109 Status Report Messages:
STATUS REPORT #5 ON WW 109
VALID 130155Z - 130240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 SE CBM TO
50 N TCL TO 30 SE MSL TO 5 NNW HSV TO 25 NE HSV TO 30 WSW CHA TO
20 WSW CHA.
..COOK..04/13/20
ATTN...WFO...BMX...HUN...OHX...
&&
STATUS REPORT FOR WT 109
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC009-019-043-049-055-057-071-089-095-103-107-127-133-130240-
AL
. ALABAMA COUNTIES INCLUDED ARE
BLOUNT CHEROKEE CULLMAN
DEKALB ETOWAH FAYETTE
JACKSON MADISON MARSHALL
MORGAN PICKENS WALKER
WINSTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 109
VALID 130040Z - 130140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 E TUP TO
20 S HSV TO 45 N GAD TO 10 WNW CHA.
..COOK..04/13/20
ATTN...WFO...BMX...HUN...OHX...
&&
STATUS REPORT FOR WT 109
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC009-019-043-049-055-057-075-093-095-103-107-127-133-130140-
AL
. ALABAMA COUNTIES INCLUDED ARE
BLOUNT CHEROKEE CULLMAN
DEKALB ETOWAH FAYETTE
LAMAR MARION MARSHALL
MORGAN PICKENS WALKER
WINSTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 109
VALID 122335Z - 130040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 E TUP TO
20 S HSV TO 45 E HSV TO 10 WNW CHA.
..COOK..04/12/20
ATTN...WFO...BMX...HUN...OHX...
&&
STATUS REPORT FOR WT 109
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC009-019-043-049-055-057-075-093-095-103-107-127-133-130040-
AL
. ALABAMA COUNTIES INCLUDED ARE
BLOUNT CHEROKEE CULLMAN
DEKALB ETOWAH FAYETTE
LAMAR MARION MARSHALL
MORGAN PICKENS WALKER
WINSTON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 109
VALID 122300Z - 130040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE CBM
TO 45 S MSL TO 35 SSW HSV TO 5 SSW HSV TO 50 N HSV.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 363
..COOK..04/12/20
ATTN...WFO...BMX...HUN...OHX...
&&
STATUS REPORT FOR WT 109
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC009-019-043-049-055-057-071-075-089-093-095-103-107-127-133-
130040-
AL
. ALABAMA COUNTIES INCLUDED ARE
BLOUNT CHEROKEE CULLMAN
DEKALB ETOWAH FAYETTE
JACKSON LAMAR MADISON
MARION MARSHALL MORGAN
PICKENS WALKER WINSTON
$$
TNC051-055-103-127-130040-
TN
. TENNESSEE COUNTIES INCLUDED ARE
FRANKLIN GILES LINCOLN
MOORE
$$
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.
$$
STATUS REPORT #1 ON WW 109
VALID 122150Z - 122240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 W CBM TO
15 N CBM TO 40 SSW MSL TO 10 SSE MSL TO 15 ENE MSL TO 35 NNE MSL
TO 55 SW BNA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 338
..COOK..04/12/20
ATTN...WFO...BMX...HUN...OHX...
&&
STATUS REPORT FOR WT 109
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ALC009-019-043-049-055-057-059-071-075-079-083-089-093-095-103-
107-127-133-122240-
AL
. ALABAMA COUNTIES INCLUDED ARE
BLOUNT CHEROKEE CULLMAN
DEKALB ETOWAH FAYETTE
FRANKLIN JACKSON LAMAR
LAWRENCE LIMESTONE MADISON
MARION MARSHALL MORGAN
PICKENS WALKER WINSTON
$$
TNC051-055-103-127-122240-
TN
. TENNESSEE COUNTIES INCLUDED ARE
FRANKLIN GILES 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
|
High (80%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
High (70%)
|
Wind
Probability of 10 or more severe wind events
|
High (80%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (>95%)
|
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 
@NWSSPC
