Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 472
NWS Storm Prediction Center Norman OK
640 PM CDT Sat Aug 29 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western Arkansas
Southeast Oklahoma
Far Northeast Texas
* Effective this Saturday night and Sunday morning from 640 PM
until 100 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Locally intense thunderstorm development is expected
especially near a front and outflow boundary this evening across the
region, with very strong instability favorable for at least isolated
severe thunderstorms. One or more semi-organized
southeastward-moving clusters could ultimately evolve later this
evening, mainly near/east of the Oklahoma/Arkansas border.
The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 40 miles west southwest
of Mcalester OK to 70 miles northeast of Texarkana AR. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU2).
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 469...WW 470...WW 471...
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 600. Mean storm motion vector
32020.
...Guyer
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 472
NWS Storm Prediction Center Norman OK
640 PM CDT Sat Aug 29 2020
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Western Arkansas
Southeast Oklahoma
Far Northeast Texas
* Effective this Saturday night and Sunday morning from 640 PM
until 100 AM CDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Scattered large hail events to 1.5 inches in diameter possible
SUMMARY...Locally intense thunderstorm development is expected
especially near a front and outflow boundary this evening across the
region, with very strong instability favorable for at least isolated
severe thunderstorms. One or more semi-organized
southeastward-moving clusters could ultimately evolve later this
evening, mainly near/east of the Oklahoma/Arkansas border.
The severe thunderstorm watch area is approximately along and 75
statute miles north and south of a line from 40 miles west southwest
of Mcalester OK to 70 miles northeast of Texarkana AR. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU2).
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 469...WW 470...WW 471...
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 600. Mean storm motion vector
32020.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 472 SEVERE TSTM AR OK TX 292340Z - 300600Z
AXIS..75 STATUTE MILES NORTH AND SOUTH OF LINE..
40WSW MLC/MCALESTER OK/ - 70NE TXK/TEXARKANA AR/
..AVIATION COORDS.. 65NM N/S /34WSW MLC - 57WSW LIT/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 600. MEAN STORM MOTION VECTOR 32020.
LAT...LON 35749643 35259313 33089313 33579643
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 472 Status Report Messages:
STATUS REPORT #3 ON WW 472
VALID 300530Z - 300600Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 N DUA TO
35 NNW ELD.
REMAINING VALID PORTION OF WW 472 MAY BE ALLOWED TO EXPIRE AT
30/06Z.
..KERR..08/30/20
ATTN...WFO...LZK...SHV...TSA...OUN...
&&
STATUS REPORT FOR WS 472
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC027-073-081-091-300600-
AR
. ARKANSAS COUNTIES INCLUDED ARE
COLUMBIA LAFAYETTE LITTLE RIVER
MILLER
$$
TXC037-387-300600-
TX
. TEXAS COUNTIES INCLUDED ARE
BOWIE RED RIVER
$$
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.
$$
STATUS REPORT #2 ON WW 472
VALID 300335Z - 300440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 SSW ADM
TO 20 N DUA TO 30 S MLC TO 35 SW RKR TO 15 S RKR TO 40 SE RKR TO
40 NE DEQ TO 30 WSW HOT TO 10 W HOT TO 25 NE HOT.
..JEWELL..08/30/20
ATTN...WFO...LZK...SHV...TSA...OUN...
&&
STATUS REPORT FOR WS 472
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC019-027-051-057-059-061-073-081-091-097-099-109-113-133-
300440-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CLARK COLUMBIA GARLAND
HEMPSTEAD HOT SPRING HOWARD
LAFAYETTE LITTLE RIVER MILLER
MONTGOMERY NEVADA PIKE
POLK SEVIER
$$
OKC005-013-023-079-089-127-300440-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CHOCTAW
LE FLORE MCCURTAIN PUSHMATAHA
$$
TXC037-387-300440-
TX
. TEXAS COUNTIES INCLUDED ARE
BOWIE RED RIVER
$$
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.
$$
STATUS REPORT #1 ON WW 472
VALID 300335Z - 300440Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..JEWELL..08/30/20
ATTN...WFO...LZK...SHV...TSA...OUN...
&&
STATUS REPORT FOR WS 472
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC019-027-051-057-059-061-073-081-091-097-099-109-113-133-
300440-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CLARK COLUMBIA GARLAND
HEMPSTEAD HOT SPRING HOWARD
LAFAYETTE LITTLE RIVER MILLER
MONTGOMERY NEVADA PIKE
POLK SEVIER
$$
OKC005-013-023-079-089-127-300440-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CHOCTAW
LE FLORE MCCURTAIN PUSHMATAHA
$$
TXC037-387-300440-
TX
. TEXAS COUNTIES INCLUDED ARE
BOWIE RED RIVER
$$
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 (10%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
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 (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.
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