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 129
NWS Storm Prediction Center Norman OK
305 PM CDT Tue Apr 21 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Oklahoma Panhandle
Northern Texas Panhandle
* Effective this Tuesday afternoon and evening from 305 PM until
1000 PM 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 possible
SUMMARY...Thunderstorms are expected to increase in coverage and
intensity this afternoon over the watch area, with a few storms
becoming severe. Large hail appears to be the primary threat, with
an increasing risk of damaging wind gusts this evening.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 30 miles west northwest
of Dalhart TX to 80 miles southeast of Liberal KS. 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 128...
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 450. Mean storm motion vector
29030.
...Hart
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 129
NWS Storm Prediction Center Norman OK
305 PM CDT Tue Apr 21 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Oklahoma Panhandle
Northern Texas Panhandle
* Effective this Tuesday afternoon and evening from 305 PM until
1000 PM 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 possible
SUMMARY...Thunderstorms are expected to increase in coverage and
intensity this afternoon over the watch area, with a few storms
becoming severe. Large hail appears to be the primary threat, with
an increasing risk of damaging wind gusts this evening.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 30 miles west northwest
of Dalhart TX to 80 miles southeast of Liberal KS. 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 128...
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 450. Mean storm motion vector
29030.
...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 129 SEVERE TSTM OK TX 212005Z - 220300Z
AXIS..60 STATUTE MILES NORTH AND SOUTH OF LINE..
30WNW DHT/DALHART TX/ - 80SE LBL/LIBERAL KS/
..AVIATION COORDS.. 50NM N/S /66NNE TCC - 8SSW MMB/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 29030.
LAT...LON 37050305 37099996 35349996 35320305
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 129 Status Report Messages:
STATUS REPORT #4 ON WW 129
VALID 220120Z - 220240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 ESE BGD
TO 50 ENE BGD TO 70 SE LBL TO 70 SE LBL.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 430
..LYONS..04/22/20
ATTN...WFO...AMA...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC211-483-220240-
TX
. TEXAS COUNTIES INCLUDED ARE
HEMPHILL WHEELER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 129
VALID 220025Z - 220140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SW DHT TO
35 SE DHT TO 15 W BGD TO 10 SW GUY TO 5 NE LBL.
..LYONS..04/22/20
ATTN...WFO...AMA...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC007-220140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BEAVER
$$
TXC065-179-195-211-233-295-357-393-483-220140-
TX
. TEXAS COUNTIES INCLUDED ARE
CARSON GRAY HANSFORD
HEMPHILL HUTCHINSON LIPSCOMB
OCHILTREE ROBERTS WHEELER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 129
VALID 212335Z - 220040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S CAO TO
20 E DHT TO 35 SSW EHA TO 30 WSW GUY TO 10 NNW EHA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 427
..LYONS..04/21/20
ATTN...WFO...AMA...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC007-139-220040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BEAVER TEXAS
$$
TXC065-179-195-205-211-233-295-341-357-393-421-483-220040-
TX
. TEXAS COUNTIES INCLUDED ARE
CARSON GRAY HANSFORD
HARTLEY HEMPHILL HUTCHINSON
LIPSCOMB MOORE OCHILTREE
ROBERTS SHERMAN WHEELER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 129
VALID 212240Z - 212340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WSW DHT
TO 25 WSW SPD TO 45 S DDC.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 427
..LYONS..04/21/20
ATTN...WFO...AMA...
&&
STATUS REPORT FOR WS 129
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC007-025-139-212340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BEAVER CIMARRON TEXAS
$$
TXC065-111-179-195-205-211-233-295-341-357-393-421-483-212340-
TX
. TEXAS COUNTIES INCLUDED ARE
CARSON DALLAM GRAY
HANSFORD HARTLEY HEMPHILL
HUTCHINSON LIPSCOMB MOORE
OCHILTREE ROBERTS SHERMAN
WHEELER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (10%)
|
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
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
High (70%)
|
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 (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.
weather.gov 
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