Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 186
NWS Storm Prediction Center Norman OK
135 PM CDT Fri May 15 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
extreme western Arkansas
southern Oklahoma
northern Texas
* Effective this Friday afternoon and evening from 135 PM until
1000 PM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph possible
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...Severe storms are expected to continue developing along a
southward advancing outflow boundary and cold front across southern
Oklahoma this afternoon, eventually spreading into northern Texas
this evening. Multicell storm modes with damaging wind and large
hail are expected.
The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 45 miles west southwest
of Altus OK to 30 miles north of De Queen AR. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
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
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
33030.
...Dial
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 186
NWS Storm Prediction Center Norman OK
135 PM CDT Fri May 15 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
extreme western Arkansas
southern Oklahoma
northern Texas
* Effective this Friday afternoon and evening from 135 PM until
1000 PM CDT.
* Primary threats include...
Scattered damaging winds and isolated significant gusts to 80
mph possible
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...Severe storms are expected to continue developing along a
southward advancing outflow boundary and cold front across southern
Oklahoma this afternoon, eventually spreading into northern Texas
this evening. Multicell storm modes with damaging wind and large
hail are expected.
The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 45 miles west southwest
of Altus OK to 30 miles north of De Queen AR. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU6).
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
2 inches. Extreme turbulence and surface wind gusts to 70 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
33030.
...Dial
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 186 SEVERE TSTM AR OK TX 151835Z - 160300Z
AXIS..70 STATUTE MILES NORTH AND SOUTH OF LINE..
45WSW LTS/ALTUS OK/ - 30N DEQ/DE QUEEN AR/
..AVIATION COORDS.. 60NM N/S /14E CDS - 54S FSM/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 33030.
LAT...LON 35410000 35509440 33479440 33390000
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 186 Status Report Messages:
STATUS REPORT #6 ON WW 186
VALID 160250Z - 160340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SSW SPS
TO 25 E FSI TO 20 NNE ADM TO 20 SSE ADM TO 15 NNE PRX TO 25 SE
PRX.
..BROYLES..05/16/20
ATTN...WFO...TSA...OUN...SHV...FWD...
&&
STATUS REPORT FOR WS 186
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC019-067-085-099-137-160340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CARTER JEFFERSON LOVE
MURRAY STEPHENS
$$
TXC077-147-181-277-160340-
TX
. TEXAS COUNTIES INCLUDED ARE
CLAY FANNIN GRAYSON
LAMAR
$$
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.
$$
STATUS REPORT #5 ON WW 186
VALID 152335Z - 160040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NW CSM TO
40 ESE CHK TO 30 NNE DUA TO 35 NE DUA TO 20 NNW PRX TO 20 NE PRX
TO 30 NNE DEQ.
..BROYLES..05/15/20
ATTN...WFO...TSA...OUN...SHV...FWD...
&&
STATUS REPORT FOR WS 186
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-009-013-019-031-033-049-055-057-065-067-069-075-085-095-
099-137-141-149-160040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BECKHAM BRYAN
CARTER COMANCHE COTTON
GARVIN GREER HARMON
JACKSON JEFFERSON JOHNSTON
KIOWA LOVE MARSHALL
MURRAY STEPHENS TILLMAN
WASHITA
$$
TXC009-023-077-097-147-155-181-197-275-277-337-485-487-160040-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
COOKE FANNIN FOARD
GRAYSON HARDEMAN KNOX
LAMAR MONTAGUE 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 #4 ON WW 186
VALID 152250Z - 152340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 ENE CSM
TO 40 NW ADM TO 30 NE ADM TO 35 SSW MLC TO 25 NNW PRX TO 20 NNE
PRX TO 30 WNW DEQ TO 40 NNE DEQ.
..BROYLES..05/15/20
ATTN...WFO...TSA...OUN...SHV...FWD...
&&
STATUS REPORT FOR WS 186
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-009-013-015-019-031-033-049-051-055-057-065-067-069-075-
085-089-095-099-137-141-149-152340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BECKHAM BRYAN
CADDO CARTER COMANCHE
COTTON GARVIN GRADY
GREER HARMON JACKSON
JEFFERSON JOHNSTON KIOWA
LOVE MCCURTAIN MARSHALL
MURRAY STEPHENS TILLMAN
WASHITA
$$
TXC009-023-077-097-147-155-181-197-275-277-337-387-485-487-
152340-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
COOKE FANNIN FOARD
GRAYSON HARDEMAN KNOX
LAMAR MONTAGUE RED RIVER
WICHITA WILBARGER
$$
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.
$$
STATUS REPORT #3 ON WW 186
VALID 152135Z - 152240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NW CHK TO
20 SE CHK TO 30 NNW ADM TO 35 N DUA TO 35 SE MLC TO 25 SSW RKR TO
15 E RKR.
..BROYLES..05/15/20
ATTN...WFO...TSA...OUN...SHV...FWD...
&&
STATUS REPORT FOR WS 186
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-009-013-015-019-023-031-033-049-051-055-057-065-067-069-
075-085-089-095-099-127-137-141-149-152240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BECKHAM BRYAN
CADDO CARTER CHOCTAW
COMANCHE COTTON GARVIN
GRADY GREER HARMON
JACKSON JEFFERSON JOHNSTON
KIOWA LOVE MCCURTAIN
MARSHALL MURRAY PUSHMATAHA
STEPHENS TILLMAN WASHITA
$$
TXC009-023-077-097-147-155-181-197-275-277-337-387-485-487-
152240-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
COOKE FANNIN FOARD
GRAYSON HARDEMAN KNOX
LAMAR MONTAGUE RED RIVER
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 186
VALID 152045Z - 152140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NNW CHK
TO 10 E CHK TO 40 NNW ADM TO 20 NE ADM TO 35 SE MLC TO 40 SSW RKR
TO 30 SSE RKR TO 20 N FSM.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 602
..GLEASON..05/15/20
ATTN...WFO...TSA...OUN...SHV...FWD...
&&
STATUS REPORT FOR WS 186
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC131-152140-
AR
. ARKANSAS COUNTIES INCLUDED ARE
SEBASTIAN
$$
OKC005-009-013-015-019-023-031-033-049-051-055-057-065-067-069-
075-085-089-095-099-127-137-141-149-152140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BECKHAM BRYAN
CADDO CARTER CHOCTAW
COMANCHE COTTON GARVIN
GRADY GREER HARMON
JACKSON JEFFERSON JOHNSTON
KIOWA LOVE MCCURTAIN
MARSHALL MURRAY PUSHMATAHA
STEPHENS TILLMAN WASHITA
$$
TXC009-023-077-097-147-155-181-197-275-277-337-387-485-487-
152140-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
COOKE FANNIN FOARD
GRAYSON HARDEMAN KNOX
LAMAR MONTAGUE RED RIVER
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 186
VALID 151940Z - 152040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 NW OKC TO
20 SSE OKC TO 40 N ADM TO 25 WSW MLC TO 20 SSE MLC TO 30 SW RKR
TO 10 WNW RKR TO 25 NW FSM.
..GLEASON..05/15/20
ATTN...WFO...TSA...OUN...SHV...FWD...
&&
STATUS REPORT FOR WS 186
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC131-152040-
AR
. ARKANSAS COUNTIES INCLUDED ARE
SEBASTIAN
$$
OKC005-009-013-015-019-023-029-031-033-049-051-055-057-065-067-
069-075-079-085-087-089-095-099-123-127-137-141-149-152040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BECKHAM BRYAN
CADDO CARTER CHOCTAW
COAL COMANCHE COTTON
GARVIN GRADY GREER
HARMON JACKSON JEFFERSON
JOHNSTON KIOWA LE FLORE
LOVE MCCLAIN MCCURTAIN
MARSHALL MURRAY PONTOTOC
PUSHMATAHA STEPHENS TILLMAN
WASHITA
$$
TXC009-023-077-097-147-155-181-197-275-277-337-387-485-487-
152040-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
COOKE FANNIN FOARD
GRAYSON HARDEMAN KNOX
LAMAR MONTAGUE RED RIVER
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 (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (40%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (50%)
|
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.