Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 581
NWS Storm Prediction Center Norman OK
855 PM CDT Tue Aug 13 2019
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
North-central and northwestern Oklahoma
* Effective this Tuesday night and Wednesday morning from 855 PM
until 200 AM CDT.
* Primary threats include...
Isolated damaging wind gusts to 70 mph possible
SUMMARY...Though likely past peak by then, a bowing complex of
thunderstorms with a substantial pressure/thermal perturbations in
Kansas still may be producing severe gusts as it enters northern
Oklahoma. This activity should weaken as it moves into a
progressively more-stable low- and middle-level air mass toward the
southern fringe of the watch area.
The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 20 miles northwest of
Alva OK to 50 miles south southwest of Enid OK. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
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 579...WW 580...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
32040.
...Edwards
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 581
NWS Storm Prediction Center Norman OK
855 PM CDT Tue Aug 13 2019
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
North-central and northwestern Oklahoma
* Effective this Tuesday night and Wednesday morning from 855 PM
until 200 AM CDT.
* Primary threats include...
Isolated damaging wind gusts to 70 mph possible
SUMMARY...Though likely past peak by then, a bowing complex of
thunderstorms with a substantial pressure/thermal perturbations in
Kansas still may be producing severe gusts as it enters northern
Oklahoma. This activity should weaken as it moves into a
progressively more-stable low- and middle-level air mass toward the
southern fringe of the watch area.
The severe thunderstorm watch area is approximately along and 85
statute miles east and west of a line from 20 miles northwest of
Alva OK to 50 miles south southwest of Enid OK. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU1).
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 579...WW 580...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
32040.
...Edwards
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 581 SEVERE TSTM OK 140155Z - 140700Z
AXIS..85 STATUTE MILES EAST AND WEST OF LINE..
20NW AVK/ALVA OK/ - 50SSW END/ENID OK/
..AVIATION COORDS.. 75NM E/W /60NE MMB - 37WNW OKC/
HAIL SURFACE AND ALOFT..1 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 32040.
LAT...LON 36959738 35669675 35669977 36950047
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 581 Status Report Messages:
STATUS REPORT #4 ON WW 581
VALID 140550Z - 140640Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NW OKC TO
40 N END.
..KERR..08/14/19
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 581
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC047-053-071-073-083-103-140640-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
GARFIELD GRANT KAY
KINGFISHER LOGAN NOBLE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 581
VALID 140455Z - 140540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NW OKC TO
40 ESE P28.
..SMITH..08/14/19
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 581
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC047-053-071-073-083-103-140540-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
GARFIELD GRANT KAY
KINGFISHER LOGAN NOBLE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 581
VALID 140405Z - 140450Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NE CSM TO
25 NE AVK.
..SMITH..08/14/19
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 581
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-011-047-053-071-073-083-093-103-140450-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE GARFIELD
GRANT KAY KINGFISHER
LOGAN MAJOR NOBLE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 581
VALID 140310Z - 140330Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SMITH..08/14/19
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WS 581
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-011-043-045-047-053-059-073-083-093-103-151-153-140330-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE DEWEY
ELLIS GARFIELD GRANT
HARPER KINGFISHER LOGAN
MAJOR NOBLE WOODS
WOODWARD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Low (<5%)
|
Probability of 1 or more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (40%)
|
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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