Storm Prediction Center Severe Thunderstorm Watch 407
4 min read
2 days ago
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 407
NWS Storm Prediction Center Norman OK
550 PM CDT Tue Jun 10 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South-Central Texas
* Effective this Tuesday afternoon and Wednesday morning from 550
PM until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph possible
Isolated very large hail events to 2 inches in diameter possible
SUMMARY...A mix of supercells and clusters should spread generally
east-southeastward this evening across parts of south-central Texas.
With time, an intense cluster may form and pose a risk for scattered
severe/damaging winds, with peak gusts potentially up to 70-80 mph.
Otherwise, isolated large hail up to 1-2 inches in diameter will
also be possible with any sustained supercell.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 50 miles west northwest
of Del Rio TX to 95 miles east southeast of Del Rio TX. 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 406...
AVIATION...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
28030.
...Gleason
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 407
NWS Storm Prediction Center Norman OK
550 PM CDT Tue Jun 10 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South-Central Texas
* Effective this Tuesday afternoon and Wednesday morning from 550
PM until 200 AM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph possible
Isolated very large hail events to 2 inches in diameter possible
SUMMARY...A mix of supercells and clusters should spread generally
east-southeastward this evening across parts of south-central Texas.
With time, an intense cluster may form and pose a risk for scattered
severe/damaging winds, with peak gusts potentially up to 70-80 mph.
Otherwise, isolated large hail up to 1-2 inches in diameter will
also be possible with any sustained supercell.
The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 50 miles west northwest
of Del Rio TX to 95 miles east southeast of Del Rio TX. 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 406...
AVIATION...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
28030.
...Gleason
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 407 SEVERE TSTM TX 102250Z - 110700Z
AXIS..55 STATUTE MILES NORTH AND SOUTH OF LINE..
50WNW DRT/DEL RIO TX/ - 95ESE DRT/DEL RIO TX/
..AVIATION COORDS.. 50NM N/S /51WNW DLF - 72SW SAT/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 28030.
LAT...LON 30440169 29639947 28049947 28850169
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 407 Status Report Message has not been issued yet.
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (<2%)
Wind
Probability of 10 or more severe wind events
Mod (40%)
Probability of 1 or more wind events > 65 knots
Mod (30%)
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
Mod (60%)
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.