Severe Center
Latest Radar Closeup Severe Thunderstorm Watch #0603
Map Options
Map Legend
Mesoscale Legend
Area of Concern - Severe T-Storm
Area of Concern - Winter
Area of Concern - Heavy Rainfall
Warnings Polygons Legend
WWA Legend
Watches Legend
Outline PDS Tornado Watch
Outline PDS T-Storm Watch
Outline Tornado Watch
Outline T-Storm Watch
Watch Probabilities
Tornadoes
Low
(20%)
EF2+ Tornadoes
Low
(10%)
Severe Winds
Moderate
(40%)
65+ KTS Winds
Low
(20%)
Severe Hail
Moderate
(40%)
2"+ Hail
Moderate
(30%)
Severe Events
High
(70%)
Active Storms
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 603
NWS Storm Prediction Center Norman OK
1210 AM CDT Thu Aug 20 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western Kentucky
Middle Tennessee
* Effective this Thursday morning from 1210 AM until 600 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...A cluster of storms including embedded supercells will
continue east-southeastward across the region overnight, with
damaging winds, large hail possible, and potentially a tornado risk.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 35 miles west southwest
of Fort Campbell KY to 35 miles south southeast of Bowling Green KY.
For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU3).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 601...WW 602...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
28025.
...Guyer
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 603
NWS Storm Prediction Center Norman OK
1210 AM CDT Thu Aug 20 2026
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western Kentucky
Middle Tennessee
* Effective this Thursday morning from 1210 AM until 600 AM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...A cluster of storms including embedded supercells will
continue east-southeastward across the region overnight, with
damaging winds, large hail possible, and potentially a tornado risk.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 35 miles west southwest
of Fort Campbell KY to 35 miles south southeast of Bowling Green KY.
For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU3).
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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 601...WW 602...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
28025.
...Guyer
WOUS64 KWNS 200506
WOU3
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 603
NWS STORM PREDICTION CENTER NORMAN OK
1210 AM CDT THU AUG 20 2026
SEVERE THUNDERSTORM WATCH 603 IS IN EFFECT UNTIL 600 AM CDT
FOR THE FOLLOWING LOCATIONS
KYC003-031-141-213-227-201100-
/O.NEW.KWNS.SV.A.0603.260820T0510Z-260820T1100Z/
KY
. KENTUCKY COUNTIES INCLUDED ARE
ALLEN BUTLER LOGAN
SIMPSON WARREN
TNC021-037-043-083-085-125-147-161-165-169-187-189-201100-
/O.NEW.KWNS.SV.A.0603.260820T0510Z-260820T1100Z/
TN
. TENNESSEE COUNTIES INCLUDED ARE
CHEATHAM DAVIDSON DICKSON
HOUSTON HUMPHREYS MONTGOMERY
ROBERTSON STEWART SUMNER
TROUSDALE WILLIAMSON WILSON
ATTN...WFO...LMK...OHX...
WOU3
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 603
NWS STORM PREDICTION CENTER NORMAN OK
1210 AM CDT THU AUG 20 2026
SEVERE THUNDERSTORM WATCH 603 IS IN EFFECT UNTIL 600 AM CDT
FOR THE FOLLOWING LOCATIONS
KYC003-031-141-213-227-201100-
/O.NEW.KWNS.SV.A.0603.260820T0510Z-260820T1100Z/
KY
. KENTUCKY COUNTIES INCLUDED ARE
ALLEN BUTLER LOGAN
SIMPSON WARREN
TNC021-037-043-083-085-125-147-161-165-169-187-189-201100-
/O.NEW.KWNS.SV.A.0603.260820T0510Z-260820T1100Z/
TN
. TENNESSEE COUNTIES INCLUDED ARE
CHEATHAM DAVIDSON DICKSON
HOUSTON HUMPHREYS MONTGOMERY
ROBERTSON STEWART SUMNER
TROUSDALE WILLIAMSON WILSON
ATTN...WFO...LMK...OHX...