MIL-OSI USA: SPC Tornado Watch 109

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
Tornado Watch Number 109
NWS Storm Prediction Center Norman OK
210 PM CDT Thu Apr 3 2025

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of
Southern Arkansas
Northern Louisiana
Northwest Mississippi
Northeast Texas

* Effective this Thursday afternoon and evening from 210 PM until
1000 PM CDT.

* Primary threats include…
A few tornadoes and a couple intense tornadoes possible
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible

SUMMARY…As the atmosphere continues to destabilize, severe storms
including supercells are expected to develop near a frontal boundary
that extends generally southwest-northeast across the region. Any
storms that develop near/south of the boundary could pose a tornado
risk, aside from large hail and damaging winds.

The tornado watch area is approximately along and 50 statute miles
north and south of a line from 10 miles south of Tyler TX to 50
miles north of Greenville MS. 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 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 60 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 23035.

…Guyer

SEL9

URGENT – IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 109
NWS Storm Prediction Center Norman OK
210 PM CDT Thu Apr 3 2025

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of
Southern Arkansas
Northern Louisiana
Northwest Mississippi
Northeast Texas

* Effective this Thursday afternoon and evening from 210 PM until
1000 PM CDT.

* Primary threats include…
A few tornadoes and a couple intense tornadoes possible
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible

SUMMARY…As the atmosphere continues to destabilize, severe storms
including supercells are expected to develop near a frontal boundary
that extends generally southwest-northeast across the region. Any
storms that develop near/south of the boundary could pose a tornado
risk, aside from large hail and damaging winds.

The tornado watch area is approximately along and 50 statute miles
north and south of a line from 10 miles south of Tyler TX to 50
miles north of Greenville MS. 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 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 60 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 23035.

…Guyer

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 AR LA MS TX 031910Z – 040300Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
10S TYR/TYLER TX/ – 50N GLH/GREENVILLE MS/
..AVIATION COORDS.. 45NM N/S /35WSW GGG – 56NW SQS/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 23035.

LAT…LON 32939540 34919098 33479098 31489540

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.

Watch 109 Status Report Message has not been issued yet.

Note:  Click for Complete Product Text.Tornadoes

Probability of 2 or more tornadoes

Mod (50%)

Probability of 1 or more strong (EF2-EF5) tornadoes

Mod (40%)

Wind

Probability of 10 or more severe wind events

Mod (50%)

Probability of 1 or more wind events > 65 knots

Low (20%)

Hail

Probability of 10 or more severe hail events

Mod (40%)

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 (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.

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