Significant weather advisory for Oklahoma, McClain, Cleveland counties
NATIONAL WEATHER SERVICE NORMAN OK
824 AM CDT TUE MAY 21 2013
OKLAHOMA OK-MCCLAIN OK-CLEVELAND OK-
824 AM CDT TUE MAY 21 2013
…SIGNIFICANT WEATHER ADVISORY FOR CENTRAL OKLAHOMA…WESTERN
MCCLAIN AND CLEVELAND COUNTIES UNTIL 900 AM CDT…
AT 820 AM CDT…A STRONG THUNDERSTORM WAS LOCATED 5 MILES SOUTHWEST
OF RUSH SPRINGS…MOVING NORTHEAST AT 35 MPH. THUNDERSTORMS WERE DEVELOPING
NORTH AND EAST AS AN UPPER LEVEL SYSTEM APPROACHES. SCATTERED SHOWERS
AND STORMS MAY MOVE INTO MOORE AND SOUTHERN OKLAHOMA CITY…MAINLY AFTER
9 AM.
Signficant weather advisory, National Weather Service, Norman
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
818 AM CDT TUE MAY 21 2013
CADDO OK-MCCLAIN OK-GRADY OK-GARVIN OK-STEPHENS OK-COMANCHE OK-
818 AM CDT TUE MAY 21 2013
…SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CADDO…SOUTHWESTERN
MCCLAIN…SOUTHERN GRADY…NORTHWESTERN GARVIN…NORTHERN STEPHENS
AND NORTHEASTERN COMANCHE COUNTIES UNTIL 845 AM CDT…
AT 816 AM CDT…A STRONG THUNDERSTORM WAS LOCATED 6 MILES SOUTHEAST
OF STERLING…MOVING NORTHEAST AT 55 MPH.
HAZARDS INCLUDE…
HAIL UP TO THE SIZE OF NICKELS…
WIND GUSTS TO 55 MPH…
Tuesday forecast map for the National Weather Service, Norman coverage area
Significant weather advisory in southern Oklahoma, National Weather Service, Norman
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
756 AM CDT TUE MAY 21 2013
OKZ027-037>039-044>046-TXZ085-086-088>090-211345-
COTTON OK-GRADY OK-TILLMAN OK-JEFFERSON OK-STEPHENS OK-COMANCHE OK-
CARTER OK-BAYLOR TX-WICHITA TX-WILBARGER TX-CLAY TX-ARCHER TX-
756 AM CDT TUE MAY 21 2013
…SIGNIFICANT WEATHER ADVISORY FOR COTTON…SOUTHERN GRADY…
TILLMAN…JEFFERSON…STEPHENS…CENTRAL COMANCHE…WESTERN CARTER…
NORTHERN BAYLOR…WICHITA…EASTERN WILBARGER…NORTHERN CLAY AND
NORTHERN ARCHER COUNTIES UNTIL 845 AM CDT…
AT 754 AM CDT…THUNDERSTORMS SOME STRONG WERE ALONG A LINE EXTENDING FROM
FOSTER TO 5 MILES SOUTHEAST OF GRAYBACK…MOVING NORTHEAST AT 45 MPH.
HAZARDS INCLUDE…
HAIL UP TO THE SIZE OF NICKELS…
WIND GUSTS TO 40 MPH…
Hazardous weather outlook, National Weather Service, Norman
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
5:00 AM TUE MAY 21 2013
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-NOBLE-
ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-BECKHAM-
WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-CLEVELAND-
POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-TILLMAN-
COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-JEFFERSON-
CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-FOARD-WILBARGER-
WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
TUE MAY 21 2013
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN…WESTERN…
CENTRAL…AND SOUTHERN OKLAHOMA…AND WESTERN NORTH TEXAS.
.DAY ONE…TODAY AND TONIGHT…
THUNDERSTORM OUTLOOK…
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS.
LOCATION…
THE SLIGHT RISK AREA IS EAST OF A LINE FROM WICHITA FALLS TEXAS…
TO SHAWNEE OKLAHOMA.
IMPACTS…
IN CENTRAL OKLAHOMA…THE MAIN CONCERN WILL BE HAIL UP TO THE
SIZE OF HALF DOLLARS THIS MORNING. THIS AFTERNOON AND EVENING…
SOUTH CENTRAL AND SOUTHEAST OKLAHOMA WILL HAVE A RISK OF HAIL
UP TO 2 INCHES IN DIAMETER AND WIND GUSTS TO 70 MPH IN THE
STRONGEST STORMS. TORNADOES MAY ALSO OCCUR ACROSS PARTS OF
SOUTH CENTRAL AND SOUTHEAST OKLAHOMA LATE THIS AFTERNOON AND
EARLY THIS EVENING.
TIMING…
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE FROM NOW
THROUGH 8 PM. THE RISK WILL END FROM NORTHWEST TO SOUTHEAST THIS
AFTERNOON AND EVENING.
RECOMMENDED ACTIONS…
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS UNTIL 8 PM.
DISCUSSION…
STRONG INSTABILITY WILL ONCE AGAIN BE IN PLACE THIS AFTERNOON
ACROSS APPROXIMATELY THE SOUTHEAST TWO THIRDS OF OKLAHOMA…INTO
NORTH TEXAS. VERTICAL WIND PROFILES WILL FAVOR STRONG TO SEVERE
THUNDERSTORMS OVER THIS SAME REGION. AN UPPER-LEVEL WAVE WILL
HELP DRIVE A SURFACE COLD FRONT SOUTHEAST THIS AFTERNOON AND
EVENING…PROVIDING A FOCUS FOR STORM DEVELOPMENT. THE STORMS
ARE LIKELY TO BE CONCENTRATED ALONG THIS FRONT FOR MOST OF THE
DAY. INITIALLY…MARGINALLY SEVERE HAIL WILL BE THE MAIN CONCERN
ALONG THE FRONT ACROSS CENTRAL OKLAHOMA. BY AFTERNOON…LARGER
HAIL AND STRONG WINDS WILL BECOME THE MAIN CONCERNS…AS THE
FRONT BEGINS TO MOVE SOUTHEAST. AS THE FRONT CONTINUES ITS
SOUTHEAST MOVEMENT INTO GREATER INSTABILITY AND MORE
SUPPORTIVE WINDS…THE RISKS OF VERY LARGE HAIL…VERY STRONG
WINDS…AND TORNADOES WILL INCREASE…MAINLY OVER SOUTHEAST
OKLAHOMA.
PROBABILITY TABLE…
VALID THROUGH 700 AM CDT WEDNESDAY MAY 22.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA…100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…80 PERCENT.
OTHER HAZARDOUS WEATHER…
NONE.
.DAYS TWO THROUGH SEVEN…WEDNESDAY THROUGH MONDAY…
THUNDERSTORM OUTLOOK…
THERE WILL BE AT LEAST A SLIGHT CHANCE OF THUNDERSTORMS EACH DAY
THROUGH SATURDAY. STORMS TOMORROW…IF THEY FORM AT ALL…ARE NOT
EXPECTED TO BE SEVERE. HOWEVER…THERE WILL BE A SLIGHT RISK OF
SEVERE STORMS OVER SOUTHWEST OKLAHOMA AND WESTERN NORTH TEXAS LATE
THURSDAY. A FEW STRONG STORMS WILL BE POSSIBLE AGAIN ON FRIDAY AND
SATURDAY.
OTHER HAZARDOUS WEATHER…
NONE.
Tuesday forecast, National Weather Service, Norman
Tornado warning until 8:30 for Coal, Atoka, Johnston counties
BULLETIN – EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
744 PM CDT MON MAY 20 2013
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* TORNADO WARNING FOR…
SOUTHEASTERN COAL COUNTY IN SOUTHEAST OKLAHOMA…
CENTRAL ATOKA COUNTY IN SOUTHEAST OKLAHOMA…
SOUTHEASTERN JOHNSTON COUNTY IN SOUTHEAST OKLAHOMA…
* UNTIL 830 PM CDT
* AT 741 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 4 MILES EAST OF COLEMAN…AND MOVING NORTHEAST AT
30 MPH.
IN ADDITION TO A TORNADO…LARGE DAMAGING HAIL UP TO GOLF BALL SIZE
IS EXPECTED WITH THIS STORM.
* LOCATIONS IMPACTED INCLUDE…
ATOKA…WAPANUCKA…STRINGTOWN…TUSHKA…LEHIGH…MILBURN…
CANEY…FILLMORE…LANE…COLEMAN…MCGEE CREEK LAKE…BOGGY DEPOT
STATE PARK AND ATOKA RESERVOIR.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY
BUILDING. STAY AWAY FROM DOORS AND WINDOWS.
Tornado warning for Carter, Johnston, Marshall
BULLETIN – EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
557 PM CDT MON MAY 20 2013
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* TORNADO WARNING FOR…
EXTREME NORTHERN MARSHALL COUNTY IN SOUTHEAST OKLAHOMA…
EAST CENTRAL CARTER COUNTY IN SOUTHERN OKLAHOMA…
JOHNSTON COUNTY IN SOUTHEAST OKLAHOMA…
* UNTIL 645 PM CDT
* AT 554 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 5 MILES NORTHWEST OF MANNSVILLE…AND MOVING EAST
AT 45 MPH.
IN ADDITION TO A TORNADO…LARGE DAMAGING HAIL UP TO TWO INCHES IN
DIAMETER IS EXPECTED WITH THIS STORM.
* LOCATIONS IMPACTED INCLUDE…
TISHOMINGO…DICKSON…MANNSVILLE…RAVIA…MILBURN…FILLMORE…
REAGAN AND RUSSETT.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY
BUILDING. STAY AWAY FROM DOORS AND WINDOWS.
THE TORNADO MAY BE HIDDEN BY RAIN AND VERY DIFFICULT TO SEE. DO NOT
WAIT. TAKE COVER NOW.
Tornado Warning for Jefferson County
BULLETIN – EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
539 PM CDT MON MAY 20 2013
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* TORNADO WARNING FOR…
SOUTH CENTRAL JEFFERSON COUNTY IN SOUTHERN OKLAHOMA…
* UNTIL 615 PM CDT
* AT 535 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 5 MILES SOUTH OF TERRAL…AND MOVING EAST AT 40
MPH.
* LOCATIONS IMPACTED INCLUDE…
TERRAL.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY
BUILDING. STAY AWAY FROM DOORS AND WINDOWS.
