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.
SEL7
URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 77
NWS Storm Prediction Center Norman OK
635 PM CDT Sun Mar 30 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Louisiana
Southeast and East-Central Texas
* Effective this Sunday night and Monday morning from 635 PM
until 200 AM CDT.
* Primary threats include…
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY…Thunderstorms coverage is expected to increase over the
next few hours across southeast and east-central TX before then
continuing downstream into northwest LA. Strong instability and
moderate shear will support the potential for supercells. The
primary severe hazard with these supercells will be large to very
large hail (i.e. greater than 2″ in diameter). Strong wind gusts
could occur as well. Given the potential for a supercell mode, a
tornado or two is also possible.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 35 miles north
northwest of College Station TX to 35 miles southeast of Shreveport
LA. For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU7).
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 70…WW 71…WW 72…WW
74…WW 75…WW 76…
AVIATION…A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24030.
…Mosier
SEL7
URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 77
NWS Storm Prediction Center Norman OK
635 PM CDT Sun Mar 30 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northwest Louisiana
Southeast and East-Central Texas
* Effective this Sunday night and Monday morning from 635 PM
until 200 AM CDT.
* Primary threats include…
Scattered large hail and isolated very large hail events to 2.5
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely
A tornado or two possible
SUMMARY…Thunderstorms coverage is expected to increase over the
next few hours across southeast and east-central TX before then
continuing downstream into northwest LA. Strong instability and
moderate shear will support the potential for supercells. The
primary severe hazard with these supercells will be large to very
large hail (i.e. greater than 2″ in diameter). Strong wind gusts
could occur as well. Given the potential for a supercell mode, a
tornado or two is also possible.
The severe thunderstorm watch area is approximately along and 40
statute miles north and south of a line from 35 miles north
northwest of College Station TX to 35 miles southeast of Shreveport
LA. For a complete depiction of the watch see the associated watch
outline update (WOUS64 KWNS WOU7).
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 70…WW 71…WW 72…WW
74…WW 75…WW 76…
AVIATION…A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24030.
…Mosier
Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW7
WW 77 SEVERE TSTM LA TX 302335Z – 310700Z
AXIS..40 STATUTE MILES NORTH AND SOUTH OF LINE..
35NNW CLL/COLLEGE STATION TX/ – 35SE SHV/SHREVEPORT LA/
..AVIATION COORDS.. 35NM N/S /50SE ACT – 46SSE EIC/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24030.
LAT…LON 31639660 32669341 31519341 30479660
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 77 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
Mod (60%)
Probability of 1 or more wind events > 65 knots
Low (20%)
Hail
Probability of 10 or more severe hail events
Mod (60%)
Probability of 1 or more hailstones > 2 inches
Mod (60%)
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.