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.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 199
NWS STORM PREDICTION CENTER NORMAN OK
1200 AM CDT TUE MAY 21 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN ARKANSAS
SOUTHERN AND CENTRAL OKLAHOMA
* EFFECTIVE THIS TUESDAY MORNING FROM MIDNIGHT UNTIL 700 AM CDT.
* PRIMARY THREATS INCLUDE...
SEVERAL LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
EVENTS TO 2 INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 110
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF
MCALESTER OKLAHOMA TO 20 MILES EAST SOUTHEAST OF ARDMORE
OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
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 193...WW 195...WW
196...WW 197...WW 198...
DISCUSSION...TSTMS EXPECTED TO PERSIST IN WAA ZONE ATOP COOL POOL
LEFT IN WAKE OF AR SQLN. 40-50 KT SWLY FLOW ATOP OUTFLOW DOME...AND
CONTINUING PRESENCE OF DEEP EML...SUGGEST A RISK FOR LARGE HAIL AND
POSSIBLY LOCALLY DMGG WIND.
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 550. MEAN STORM
MOTION VECTOR 25025.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 199 SEVERE TSTM AR OK 210500Z - 211200Z
AXIS..110 STATUTE MILES EAST AND WEST OF LINE..
45NW MLC/MCALESTER OK/ - 20ESE ADM/ARDMORE OK/
..AVIATION COORDS.. 95NM E/W /40NW MLC - 24E ADM/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 25025.
LAT...LON 35319438 34159476 34159862 35319830
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 199 Status Report Messages:
STATUS REPORT #5 ON WW 199
VALID 211150Z - 211200Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S RKR TO
45 WNW DEQ TO 15 NNW DUA.
WW 199 WILL BE ALLOWED TO EXPIRE AT 211200Z. A MESOSCALE
DISCUSSION WILL BE SENT SOON FOR SRN OK AND NRN TX INDICATING A
FORECAST INCREASE IN STORM ORGANIZATION BY LATER THIS MORNING AND
THE POTENTIAL NEED FOR A NEW WW.
..PETERS..05/21/13
ATTN...WFO...TSA...OUN...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC033-047-131-211200-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CRAWFORD FRANKLIN SEBASTIAN
$$
OKC005-015-019-027-029-031-033-049-051-061-063-069-077-079-087-
091-099-101-121-123-125-127-133-135-137-211200-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA CADDO CARTER
CLEVELAND COAL COMANCHE
COTTON GARVIN GRADY
HASKELL HUGHES JOHNSTON
LATIMER LE FLORE MCCLAIN
MCINTOSH MURRAY MUSKOGEE
PITTSBURG PONTOTOC POTTAWATOMIE
PUSHMATAHA SEMINOLE SEQUOYAH
STEPHENS
$$
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.
$$
STATUS REPORT #4 ON WW 199
VALID 210930Z - 211040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSE RKR
TO 45 WNW DEQ TO 15 NNW DUA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 745.
..PETERS..05/21/13
ATTN...WFO...TSA...OUN...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC033-047-131-211040-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CRAWFORD FRANKLIN SEBASTIAN
$$
OKC005-015-019-027-029-031-033-049-051-061-063-069-077-079-087-
091-099-101-121-123-125-127-133-135-137-211040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA CADDO CARTER
CLEVELAND COAL COMANCHE
COTTON GARVIN GRADY
HASKELL HUGHES JOHNSTON
LATIMER LE FLORE MCCLAIN
MCINTOSH MURRAY MUSKOGEE
PITTSBURG PONTOTOC POTTAWATOMIE
PUSHMATAHA SEMINOLE SEQUOYAH
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 199
VALID 210855Z - 210940Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WSW ADM
TO 25 E OKC.
..PETERS..05/21/13
ATTN...WFO...TSA...OUN...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC033-047-131-210940-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CRAWFORD FRANKLIN SEBASTIAN
$$
OKC005-019-029-049-061-063-069-077-079-091-099-101-121-123-125-
127-133-135-210940-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA CARTER COAL
GARVIN HASKELL HUGHES
JOHNSTON LATIMER LE FLORE
MCINTOSH MURRAY MUSKOGEE
PITTSBURG PONTOTOC POTTAWATOMIE
PUSHMATAHA SEMINOLE SEQUOYAH
$$
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.
$$
STATUS REPORT #2 ON WW 199
VALID 210750Z - 210840Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 WSW ADM
TO 25 E OKC.
..HART..05/21/13
ATTN...WFO...TSA...OUN...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC033-047-131-210840-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CRAWFORD FRANKLIN SEBASTIAN
$$
OKC005-019-029-049-061-063-069-077-079-091-099-101-121-123-125-
127-133-135-210840-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA CARTER COAL
GARVIN HASKELL HUGHES
JOHNSTON LATIMER LE FLORE
MCINTOSH MURRAY MUSKOGEE
PITTSBURG PONTOTOC POTTAWATOMIE
PUSHMATAHA SEMINOLE SEQUOYAH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 199
VALID 210650Z - 210740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..PETERS..05/21/13
ATTN...WFO...TSA...OUN...
&&
STATUS REPORT FOR WS 199
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC033-047-131-210740-
AR
. ARKANSAS COUNTIES INCLUDED ARE
CRAWFORD FRANKLIN SEBASTIAN
$$
OKC005-015-019-027-029-031-033-049-051-061-063-069-077-079-087-
091-099-101-121-123-125-127-133-135-137-210740-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA CADDO CARTER
CLEVELAND COAL COMANCHE
COTTON GARVIN GRADY
HASKELL HUGHES JOHNSTON
LATIMER LE FLORE MCCLAIN
MCINTOSH MURRAY MUSKOGEE
PITTSBURG PONTOTOC POTTAWATOMIE
PUSHMATAHA SEMINOLE SEQUOYAH
STEPHENS
$$
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
|
Low (<5%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Low (<5%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (60%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (30%)
|
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.