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 177
NWS Storm Prediction Center Norman OK
640 PM CDT Mon May 11 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast New Mexico
Northwest Texas
* Effective this Monday night from 640 PM until Midnight CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Multiple supercells and clusters will likely spread east
this evening with large hail and severe wind gusts as the primary
threats. A tornado is also possible, particularly along the I-27
corridor in northwest Texas.
The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 55 miles southwest of
Lubbock TX to 25 miles northwest of Amarillo 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 176...
AVIATION...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 500. Mean storm motion vector
27035.
...Grams
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 177
NWS Storm Prediction Center Norman OK
640 PM CDT Mon May 11 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southeast New Mexico
Northwest Texas
* Effective this Monday night from 640 PM until Midnight CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Multiple supercells and clusters will likely spread east
this evening with large hail and severe wind gusts as the primary
threats. A tornado is also possible, particularly along the I-27
corridor in northwest Texas.
The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 55 miles southwest of
Lubbock TX to 25 miles northwest of Amarillo 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 176...
AVIATION...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 500. Mean storm motion vector
27035.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 177 SEVERE TSTM NM TX 112340Z - 120500Z
AXIS..85 STATUTE MILES EAST AND WEST OF LINE..
55SW LBB/LUBBOCK TX/ - 25NW AMA/AMARILLO TX/
..AVIATION COORDS.. 75NM E/W /46SW LBB - 22WNW AMA/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.
LAT...LON 33090396 35470354 35470052 33090102
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 177 Status Report Messages:
STATUS REPORT #4 ON WW 177
VALID 120420Z - 120500Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 SSW LBB
TO 40 SSW LBB TO 40 SE LBB TO 50 E LBB TO 45 SW CDS TO 35 NE PVW
TO 45 SE AMA TO 40 NNW CDS.
REMAINING VALID PORTION OF WW 177 MAY BE ALLOWED TO EXPIRE AT
12/05Z.
..KERR..05/12/20
ATTN...WFO...ABQ...AMA...LUB...
&&
STATUS REPORT FOR WS 177
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC045-125-129-169-191-263-305-345-120500-
TX
. TEXAS COUNTIES INCLUDED ARE
BRISCOE DICKENS DONLEY
GARZA HALL KENT
LYNN MOTLEY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 177
VALID 120345Z - 120440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 SW LBB TO
35 WSW LBB TO 15 SE LBB TO 30 ESE PVW TO 10 E PVW TO 25 SE AMA TO
50 ESE BGD.
..KERR..05/12/20
ATTN...WFO...ABQ...AMA...LUB...
&&
STATUS REPORT FOR WS 177
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC045-107-125-129-153-169-191-263-305-345-445-120440-
TX
. TEXAS COUNTIES INCLUDED ARE
BRISCOE CROSBY DICKENS
DONLEY FLOYD GARZA
HALL KENT LYNN
MOTLEY TERRY
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 177
VALID 120230Z - 120340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNE HOB
TO 55 N HOB TO 35 W LBB TO 25 NW PVW TO 20 NNE AMA.
..KERR..05/12/20
ATTN...WFO...ABQ...AMA...LUB...
&&
STATUS REPORT FOR WS 177
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC011-045-065-107-125-129-153-169-179-189-191-219-263-303-305-
345-437-445-501-120340-
TX
. TEXAS COUNTIES INCLUDED ARE
ARMSTRONG BRISCOE CARSON
CROSBY DICKENS DONLEY
FLOYD GARZA GRAY
HALE HALL HOCKLEY
KENT LUBBOCK LYNN
MOTLEY SWISHER TERRY
YOAKUM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 177
VALID 120150Z - 120240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE ROW
TO 55 SSE CVS TO 30 ENE CVS TO 25 NW AMA.
..KERR..05/12/20
ATTN...WFO...ABQ...AMA...LUB...
&&
STATUS REPORT FOR WS 177
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC011-017-045-065-069-079-107-125-129-153-169-179-189-191-219-
263-279-303-305-345-369-375-381-437-445-501-120240-
TX
. TEXAS COUNTIES INCLUDED ARE
ARMSTRONG BAILEY BRISCOE
CARSON CASTRO COCHRAN
CROSBY DICKENS DONLEY
FLOYD GARZA GRAY
HALE HALL HOCKLEY
KENT LAMB LUBBOCK
LYNN MOTLEY PARMER
POTTER RANDALL SWISHER
TERRY YOAKUM
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (5%)
|
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
|
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 (70%)
|
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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