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 170
NWS Storm Prediction Center Norman OK
445 PM CDT Thu May 7 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southwest Oklahoma
Northwest Texas
* Effective this Thursday afternoon and evening from 445 PM until
1000 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 3.5
inches in diameter likely
Scattered damaging winds and isolated significant gusts to 80
mph possible
SUMMARY...A couple intense supercells will likely develop along the
portion of the Red River in the southeast Texas Panhandle and spread
east-southeast near the northwest Texas and southwest Oklahoma
border. Very large hail and isolated significant severe wind are the
main hazards.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 35 miles west northwest
of Clinton OK to 65 miles southwest of Wichita Falls 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.
&&
AVIATION...A few severe thunderstorms with hail surface and aloft to
3.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
29035.
...Grams
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 170 SEVERE TSTM OK TX 072145Z - 080300Z
AXIS..70 STATUTE MILES EAST AND WEST OF LINE..
35WNW CSM/CLINTON OK/ - 65SW SPS/WICHITA FALLS TX/
..AVIATION COORDS.. 60NM E/W /49S MMB - 54SW SPS/
HAIL SURFACE AND ALOFT..3.5 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 29035.
LAT...LON 35529853 33309808 33300051 35520102
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 170 Status Report Messages:
STATUS REPORT #3 ON WW 170
VALID 080130Z - 080240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 NNE ABI
TO 50 W SPS TO 30 SW LTS TO 15 NNW CDS TO 40 NW CDS TO 25 ESE AMA.
..BENTLEY..05/08/20
ATTN...WFO...OUN...LUB...AMA...
&&
STATUS REPORT FOR WS 170
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC009-031-033-055-057-065-075-141-080240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BECKHAM COMANCHE COTTON
GREER HARMON JACKSON
KIOWA TILLMAN
$$
TXC009-023-077-087-129-179-483-485-487-080240-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
COLLINGSWORTH DONLEY GRAY
WHEELER WICHITA WILBARGER
$$
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.
$$
STATUS REPORT #2 ON WW 170
VALID 080020Z - 080140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 60 NNW ABI
TO 55 SSE CDS TO 40 SE CDS TO 10 E CDS TO 30 NW CDS TO 25 ESE AMA.
..BENTLEY..05/08/20
ATTN...WFO...OUN...LUB...AMA...
&&
STATUS REPORT FOR WS 170
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC009-031-033-055-057-065-075-141-080140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BECKHAM COMANCHE COTTON
GREER HARMON JACKSON
KIOWA TILLMAN
$$
TXC009-023-075-077-087-129-155-179-197-275-483-485-487-080140-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CHILDRESS
CLAY COLLINGSWORTH DONLEY
FOARD GRAY HARDEMAN
KNOX WHEELER WICHITA
WILBARGER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 170
VALID 072245Z - 072340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BENTLEY..05/07/20
ATTN...WFO...OUN...LUB...AMA...
&&
STATUS REPORT FOR WS 170
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC009-031-033-055-057-065-075-141-072340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BECKHAM COMANCHE COTTON
GREER HARMON JACKSON
KIOWA TILLMAN
$$
TXC009-023-075-077-087-101-125-129-155-179-191-197-269-275-345-
483-485-487-072340-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CHILDRESS
CLAY COLLINGSWORTH COTTLE
DICKENS DONLEY FOARD
GRAY HALL HARDEMAN
KING KNOX MOTLEY
WHEELER WICHITA WILBARGER
$$
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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (40%)
|
Hail
Probability of 10 or more severe hail events
|
High (70%)
|
Probability of 1 or more hailstones > 2 inches
|
High (70%)
|
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.
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