Source: US National Oceanic and Atmospheric Administration
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
Severe Thunderstorm Watch Number 189
NWS Storm Prediction Center Norman OK
130 PM CDT Tue Apr 29 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Illinois
Southern Indiana
Northwest Kentucky
* Effective this Tuesday afternoon and evening from 130 PM until
800 PM CDT.
* Primary threats include…
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY…A cluster of thunderstorms over southeast Missouri will
track eastward through the afternoon, posing a risk of damaging wind
gusts and some hail.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 5 miles north of
Carbondale IL to 35 miles north northeast of Louisville KY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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 187…WW 188…
AVIATION…A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
25035.
…Hart
SEL9
URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 189
NWS Storm Prediction Center Norman OK
130 PM CDT Tue Apr 29 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast Illinois
Southern Indiana
Northwest Kentucky
* Effective this Tuesday afternoon and evening from 130 PM until
800 PM CDT.
* Primary threats include…
Scattered damaging winds likely with isolated significant gusts
to 75 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY…A cluster of thunderstorms over southeast Missouri will
track eastward through the afternoon, posing a risk of damaging wind
gusts and some hail.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 5 miles north of
Carbondale IL to 35 miles north northeast of Louisville KY. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU9).
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 187…WW 188…
AVIATION…A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
25035.
…Hart
Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW9
WW 189 SEVERE TSTM IL IN KY 291830Z – 300100Z
AXIS..55 STATUTE MILES NORTH AND SOUTH OF LINE..
5N MDH/CARBONDALE IL/ – 35NNE SDF/LOUISVILLE KY/
..AVIATION COORDS.. 50NM N/S /48ENE FAM – 33N IIU/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..65 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25035.
LAT…LON 38658925 39438548 37848548 37068925
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 189 Status Report Message has not been issued yet.
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
High (70%)
Probability of 1 or more wind events > 65 knots
Mod (30%)
Hail
Probability of 10 or more severe hail events
Mod (40%)
Probability of 1 or more hailstones > 2 inches
Low (20%)
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
High (90%)
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.