Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 133
NWS Storm Prediction Center Norman OK
930 PM CDT Tue May 29 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of western, central, and northern Oklahoma
* Effective this Tuesday night and Wednesday morning from 930 PM
until 400 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Scattered severe storms are ongoing in clusters across
northwest and west central Oklahoma. These storms will likely
persist and spread eastward through the overnight hours with an
attendant threat for large hail, especially with embedded
supercells. There is still some potential for the storms in
northwest Oklahoma to grow into a somewhat larger cluster, which
would favor an increase in the threat for damaging winds.
The severe thunderstorm watch area is approximately along and 80
statute miles east and west of a line from 25 miles northwest of
Ponca City OK to 35 miles west southwest of Chickasha OK. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU3).
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 132...
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
28030.
...Thompson
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 133
NWS Storm Prediction Center Norman OK
930 PM CDT Tue May 29 2018
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Parts of western, central, and northern Oklahoma
* Effective this Tuesday night and Wednesday morning from 930 PM
until 400 AM CDT.
* Primary threats include...
Scattered large hail likely with isolated very large hail events
to 2 inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
SUMMARY...Scattered severe storms are ongoing in clusters across
northwest and west central Oklahoma. These storms will likely
persist and spread eastward through the overnight hours with an
attendant threat for large hail, especially with embedded
supercells. There is still some potential for the storms in
northwest Oklahoma to grow into a somewhat larger cluster, which
would favor an increase in the threat for damaging winds.
The severe thunderstorm watch area is approximately along and 80
statute miles east and west of a line from 25 miles northwest of
Ponca City OK to 35 miles west southwest of Chickasha OK. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU3).
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 132...
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
28030.
...Thompson
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 133 SEVERE TSTM OK 300230Z - 300900Z
AXIS..80 STATUTE MILES EAST AND WEST OF LINE..
25NW PNC/PONCA CITY OK/ - 35WSW CHK/CHICKASHA OK/
..AVIATION COORDS.. 70NM E/W /45NNE END - 53WSW OKC/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 28030.
LAT...LON 36979597 34909712 34909994 36979887
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 133 Status Report Messages:
STATUS REPORT #1 ON WW 133
VALID 300425Z - 300540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW LTS
TO 5 NNW CSM TO 30 NNE PNC.
..PICCA..05/30/18
ATTN...WFO...OUN...TSA...
&&
STATUS REPORT FOR WS 133
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC011-015-017-027-031-037-047-051-071-073-075-081-083-087-103-
109-113-117-119-125-137-149-300540-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BLAINE CADDO CANADIAN
CLEVELAND COMANCHE CREEK
GARFIELD GRADY KAY
KINGFISHER KIOWA LINCOLN
LOGAN MCCLAIN NOBLE
OKLAHOMA OSAGE PAWNEE
PAYNE POTTAWATOMIE STEPHENS
WASHITA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (10%)
|
Probability of 1 or more strong (F2-F5) 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 (60%)
|
Probability of 1 or more hailstones > 2 inches
|
Mod (40%)
|
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% (F2-F5 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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