Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 491
NWS STORM PREDICTION CENTER NORMAN OK
340 PM CDT TUE OCT 4 2016
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
SOUTH CENTRAL OKLAHOMA
* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 340 PM UNTIL
900 PM CDT.
* PRIMARY THREATS INCLUDE...
A FEW TORNADOES AND A COUPLE INTENSE TORNADOES POSSIBLE
SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS
TO 2.5 INCHES IN DIAMETER POSSIBLE
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
SUMMARY...THUNDERSTORMS ARE LIKELY TO FORM THIS AFTERNOON OVER
SOUTHWEST OK AND TRACK NORTHEASTWARD ACROSS THE WATCH AREA.
CONDITIONS APPEAR FAVORABLE FOR ISOLATED SUPERCELL STORMS CAPABLE OF
VERY LARGE HAIL AND DAMAGING WINDS. A FEW TORNADOES ARE ALSO
POSSIBLE.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES WEST NORTHWEST OF
CHANDLER OKLAHOMA TO 45 MILES WEST SOUTHWEST OF ARDMORE OKLAHOMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
&&
OTHER WATCH INFORMATION...CONTINUE...WW 490...
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25035.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 491 TORNADO OK 042040Z - 050200Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
30WNW CQB/CHANDLER OK/ - 45WSW ADM/ARDMORE OK/
..AVIATION COORDS.. 50NM E/W /35NNE OKC - 30WSW ADM/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25035.
LAT...LON 35889623 34029669 34029879 35889838
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 491 Status Report Messages:
STATUS REPORT #5 ON WW 491
VALID 050139Z - 050240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WNW MLC
TO 40 N ADM TO 15 ESE CHK TO 10 W OKC TO 25 SSE END.
PORTIONS WW WILL BE LOCALLY EXTENDED IN TIME.
FOR ADDITIONAL INFORMATION SEE SPC MESOSCALE DISCUSSION 1759.
..EDWARDS..10/05/16
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WT 491
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC011-017-027-047-051-053-063-071-073-081-083-087-093-103-109-
119-125-133-050240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
BLAINE CANADIAN CLEVELAND
GARFIELD GRADY GRANT
HUGHES KAY KINGFISHER
LINCOLN LOGAN MCCLAIN
MAJOR NOBLE OKLAHOMA
PAYNE POTTAWATOMIE SEMINOLE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 491
VALID 050027Z - 050140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE SPC MESOSCALE DISCUSSION 1759.
..EDWARDS..10/05/16
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WT 491
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-011-015-017-019-027-029-031-033-047-049-051-053-063-067-
069-071-073-081-083-085-087-093-099-103-109-119-123-125-133-137-
050140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE CADDO
CANADIAN CARTER CLEVELAND
COAL COMANCHE COTTON
GARFIELD GARVIN GRADY
GRANT HUGHES JEFFERSON
JOHNSTON KAY KINGFISHER
LINCOLN LOGAN LOVE
MCCLAIN MAJOR MURRAY
NOBLE OKLAHOMA PAYNE
PONTOTOC POTTAWATOMIE SEMINOLE
STEPHENS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 491
VALID 042322Z - 050040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
A GROUPING OF COUNTIES HAS BEEN ADDED TO WW IN N-CENTRAL OK.
..EDWARDS..10/04/16
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WT 491
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC003-011-015-017-019-027-029-031-033-047-049-051-053-063-067-
069-071-073-081-083-085-087-093-099-103-109-119-123-125-133-137-
050040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA BLAINE CADDO
CANADIAN CARTER CLEVELAND
COAL COMANCHE COTTON
GARFIELD GARVIN GRADY
GRANT HUGHES JEFFERSON
JOHNSTON KAY KINGFISHER
LINCOLN LOGAN LOVE
MCCLAIN MAJOR MURRAY
NOBLE OKLAHOMA PAYNE
PONTOTOC POTTAWATOMIE SEMINOLE
STEPHENS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 491
VALID 042221Z - 042340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
WW MAY BE EXTENDED NWD ACROSS MORE OF NRN OK.
FOR ADDITIONAL INFORMATION SEE SPC MESOSCALE DISCUSSION 1756.
..EDWARDS..10/04/16
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WT 491
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC015-017-019-027-029-031-033-049-051-063-067-069-081-083-085-
087-099-109-119-123-125-133-137-042340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CADDO CANADIAN CARTER
CLEVELAND COAL COMANCHE
COTTON GARVIN GRADY
HUGHES JEFFERSON JOHNSTON
LINCOLN LOGAN LOVE
MCCLAIN MURRAY OKLAHOMA
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE STEPHENS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 491
VALID 042121Z - 042240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..EDWARDS..10/04/16
ATTN...WFO...OUN...
&&
STATUS REPORT FOR WT 491
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC015-017-019-027-029-031-033-049-051-063-067-069-081-083-085-
087-099-109-119-123-125-133-137-042240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CADDO CANADIAN CARTER
CLEVELAND COAL COMANCHE
COTTON GARVIN GRADY
HUGHES JEFFERSON JOHNSTON
LINCOLN LOGAN LOVE
MCCLAIN MURRAY OKLAHOMA
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE STEPHENS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (50%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Mod (30%)
|
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
|
High (70%)
|
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 (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.