Storm Prediction Center Severe Thunderstorm Watch 300
4 min read
2 months 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.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 300
NWS Storm Prediction Center Norman OK
150 AM CDT Tue May 20 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central into Southwest Arkansas
Northwest Louisiana
Far Southeast Oklahoma
Northeast Texas
* Effective this Tuesday morning from 150 AM until 800 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A mix of thunderstorm bands and cellular storms will
likely move from west to east across the Watch tonight into the
early morning. The stronger thunderstorms will be potentially
capable of a threat for severe gusts 60-70 mph. Large hail may
accompany the more intense cells across the southern half of the
Watch. A brief tornado is possible, especially later tonight into
the early morning as the thunderstorm activity moves into the
eastern and southeastern parts of the Watch.
The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 40 miles northeast of
Russellville AR to Longview TX. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU0).
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 297...WW 298...WW 299...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
25045.
...Smith
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 300
NWS Storm Prediction Center Norman OK
150 AM CDT Tue May 20 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central into Southwest Arkansas
Northwest Louisiana
Far Southeast Oklahoma
Northeast Texas
* Effective this Tuesday morning from 150 AM until 800 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A mix of thunderstorm bands and cellular storms will
likely move from west to east across the Watch tonight into the
early morning. The stronger thunderstorms will be potentially
capable of a threat for severe gusts 60-70 mph. Large hail may
accompany the more intense cells across the southern half of the
Watch. A brief tornado is possible, especially later tonight into
the early morning as the thunderstorm activity moves into the
eastern and southeastern parts of the Watch.
The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 40 miles northeast of
Russellville AR to Longview TX. For a complete depiction of the
watch see the associated watch outline update (WOUS64 KWNS WOU0).
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 297...WW 298...WW 299...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
25045.
...Smith
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 300 SEVERE TSTM AR LA OK TX 200650Z - 201300Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
40NE RUE/RUSSELLVILLE AR/ - GGG/LONGVIEW TX/
..AVIATION COORDS.. 65NM E/W /62NNW LIT - 3SSE GGG/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25045.
LAT...LON 35659125 32379343 32379601 35659392
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 300 Status Report Message has not been issued yet.
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (10%)
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
Low (10%)
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
High (80%)
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.
