Hazardous weather outlook, National Weather Service, Tulsa
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
535 AM CDT MON MAY 20 2013
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
530 AM CDT MON MAY 20 2013
…MORE SEVERE WEATHER LIKELY TODAY AND TONIGHT…
THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.
.DAY ONE…TODAY AND TONIGHT.
TORNADO.
RISK…LIMITED.
AREA…EASTERN OKLAHOMA AND WEST CENTRAL AND NORTHWEST ARKANSAS.
ONSET…AFTERNOON.
SEVERE THUNDERSTORM.
RISK…SIGNIFICANT.
AREA…EASTERN OKLAHOMA AND WEST CENTRAL AND NORTHWEST ARKANSAS.
ONSET…AFTERNOON.
AREA AT GREATEST RISK…INTERSTATE 40 AXIS.
FLASH FLOOD.
RISK…ELEVATED.
AREA…EASTERN OKLAHOMA AND WEST CENTRAL AND NORTHWEST ARKANSAS.
ONSET…MID OR LATE AFTERNOON.
HEAVY RAIN.
RISK…SIGNIFICANT.
AREA…EASTERN OKLAHOMA AND WEST CENTRAL AND NORTHWEST ARKANSAS.
ONSET…MID OR LATE AFTERNOON.
AREA AT GREATEST RISK…NEAR AN AXIS FROM HENRYETTA TO FAYETTEVILLE.
DISCUSSION…
TODAY AND TONIGHT WILL FEATURE ANOTHER VERY ACTIVE WEATHER DAY.
CONVECTION IS LIKELY TO BEGIN EARLIER THAN YESTERDAY…PROBABLY
BETWEEN NOON AND 3 PM. THUNDERSTORMS WILL BECOME MORE NUMEROUS
LATE AFTERNOON AND EARLY EVENING…THEN LAST MUCH OF THE
OVERNIGHT HOURS.
THE AIRMASS OVER OUR REGION HAS CHANGED LITTLE FROM YESTERDAY
WITH SIGNIFICANT CONVECTIVE AVAILABLE ENERGY AND DEEP LAYER SHEAR.
TORNADOES…BASEBALL SIZE HAIL AND WIND GUST OF 80 MILES AN HOUR CAN
BE ANTICIPATED FROM SOME STORMS. WEST CENTRAL AND NORTHWEST ARKANSAS
WILL BE MUCH MORE LIKELY TO SEE SEVERE STORMS LATE TODAY OR TONIGHT
THAN YESTERDAY.
HIGH ATMOSPHERIC MOISTURE CONTENT MEANS ANY AREA THAT RECEIVES
REPEAT STORMS…OR TRAINING STORMS…WILL SEE AN ENHANCED FLOOD
THREAT. THE AREA THAT APPEARS MOST VULNERABLE FOR HEAVY RAIN
WILL BE NEAR AN AXIS FROM AROUND HENRYETTA TO THE FAYETTEVILLE
SPRINGDALE VICINITY.
.DAYS TWO THROUGH SEVEN…TUESDAY THROUGH SUNDAY.
TUESDAY…SEVERE THUNDERSTORM POTENTIAL…HEAVY RAIN POTENTIAL.
WEDNESDAY…NO HAZARDS.
THURSDAY…THUNDERSTORM POTENTIAL.
FRIDAY…THUNDERSTORM POTENTIAL.
SATURDAY…THUNDERSTORM POTENTIAL.
SUNDAY…THUNDERSTORM POTENTIAL.
EXTENDED DISCUSSION…
THE SEVERE WEATHER THREAT MAY PERSIST INTO TUESDAY…FOR
SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS AHEAD OF A SLOW
MOVING COLD FRONT. AFTER A ONE DAY BREAK WEDNESDAY…LOW
CHANCES FOR THUNDERSTORMS RETURN THURSDAY THROUGH SUNDAY.
EMERGENCY MANAGEMENT PLANNING STATEMENT…
SEVERE STORMS ARE LIKELY TO BE MUCH MORE WIDESPREAD OVER
EASTERN OKLAHOMA TODAY AND TONIGHT THAN YESTERDAY. FOLKS
IN NORTHWEST ARKANSAS WILL BE EQUALLY INCLUDED IN THE SEVERE
THREAT AFTER MISSING THE BULK OF YESTERDAYS STORMS.
Weather safety review, National Weather Service, Tulsa
RESIDENTS ACROSS
THE REGION SHOULD MONITOR THIS SITUATION VERY CLOSELY. WATCHES AND
WARNINGS WILL LIKELY BE ISSUED LATER TODAY. HERE ARE SOME SAFETY
RULES TO KEEP IN MIND WHEN SEVERE WEATHER IS EXPECTED OR IS
OCCURRING.
BEFORE SEVERE WEATHER STRIKES…ENSURE THAT YOU AND YOUR FAMILY
ARE FULLY PREPARED. IN A HOME OR BUILDING HAVE A PRE-DESIGNATED
SHELTER… SUCH AS A BASEMENT OR AN INTERIOR ROOM OR HALLWAY.
HAVE ON HAND A DISASTER SUPPLY KIT…INCLUDING A NOAA WEATHER
RADIO…FLASHLIGHT…RADIO AND A GOOD SUPPLY OF BATTERIES.
IF A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED…SEEK SHELTER
INDOORS IMMEDIATELY. A SEVERE THUNDERSTORM IS DEFINED AS PRODUCING
QUARTER SIZE OR GREATER HAIL AND WIND GUSTS OF 58 MPH OR MORE. IN
EXTREME CASES…SEVERE THUNDERSTORMS CAN PRODUCE WINDS TO NEAR 150
MPH AND HAIL LARGER THAN GRAPEFRUITS WHICH CAN CAUSE EXTENSIVE
PROPERTY DAMAGE.
TORNADOES OFTEN FORM VERY RAPIDLY FROM SEVERE THUNDERSTORMS. IF
YOU ARE IN A TORNADO WATCH…AND A SEVERE THUNDERSTORM WARNING IS
ISSUED FOR YOUR AREA…MONITOR LOCAL CONDITIONS CLOSELY AND BE
READY TO TAKE QUICK ACTION TO SAVE YOUR LIFE.
REMEMBER THAT LIGHTNING IS A THUNDERSTORMS MOST UNDERRATED KILLER.
POSTPONE OUTDOOR ACTIVITIES IF THUNDERSTORMS ARE IMMINENT. THIS
IS THE BEST WAY TO AVOID BEING CAUGHT IN A DANGEROUS SITUATION.
AUTOMOBILES OFFER GOOD PROTECTION FROM LIGHTNING…ALTHOUGH MOVING
INDOORS IS BEST. EVEN INSIDE…LIGHTING CAN KILL BY COMING THROUGH
THE PHONE LINES…PLUMBING AND ELECTRIC LINES. THEREFORE DO NOT
USE COMPUTERS…TELEPHONES OR OTHER HAND HELD APPLIANCES DURING A
STORM.
STAY TUNED TO NOAA WEATHER RADIO…COMMERCIAL RADIO OR TELEVISION
FOR THE LATEST ON THIS DEVELOPING SEVERE WEATHER EVENT.
Source: National Weather Service, Tulsa Forecast Office.
Hazardous weather outlook, National Weather Service, Norman
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
MON MAY 20 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-
MON MAY 20 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 MODERATE RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS.
LOCATION…
THE MODERATE RISK AREA IS SOUTHEAST OF A LINE FROM WICHITA FALLS
TEXAS…TO LAWTON OKLAHOMA…TO EL RENO…TO GUTHRIE…TO
STILLWATER. A SLIGHT RISK AREA SURROUNDS THE MODERATE RISK…
AND IS EAST OF A LINE FROM MUNDAY TO VERNON IN TEXAS…AND
ALTUS…TO CLINTON…TO FAIRVIEW…TO CHEROKEE IN OKLAHOMA.
TIMING…
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE FROM 1 PM
THROUGH MIDNIGHT.
IMPACTS…
BASEBALL SIZED HAIL…DAMAGING WINDS…AND A FEW TORNADOES ARE
LIKELY WITH THE STRONGEST STORMS WITHIN THE MODERATE RISK AREA.
QUARTER TO PING PONG BALL SIZED HAIL…AND WINDS TO ABOUT 60 MPH
ARE EXPECTED WITH THE STRONGER STORMS WITHIN THE SLIGHT RISK AREA.
RECOMMENDED ACTIONS…
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREAS SHOULD PLAN FOR SEVERE WEATHER OPERATIONS FROM 1 PM UNTIL
MIDNIGHT.
DISCUSSION…
THE WEATHER SITUATION TODAY VERY MUCH RESEMBLES YESTERDAY. WARM…
UNSTABLE AIR WILL AGAIN LIE EAST OF A COLD FRONT/DRYLINE COMBINATION
THAT WILL BE OVER WESTERN AND CENTRAL OKLAHOMA…AND WESTERN NORTH
TEXAS. VERTICAL WIND PROFILES WILL AGAIN SUPPORT ROTATING UPDRAFTS
AND SUPERCELL THUNDERSTORMS…ESPECIALLY IN THE MODERATE RISK AREA.
A SLIGHTLY WEAKER CAPPING INVERSION IS INDICATED…WHICH SUGGESTS
A SLIGHTLY EARLIER BEGINNING OF STORM DEVELOPMENT…COMPARED TO
YESTERDAY. STORMS ARE EXPECTED TO BE FAIRLY SPARSE EARLY IN THE
EVENT…THEN MERGE INTO SMALL CLUSTERS DURING THE EVENING. THE
SEVERE WEATHER THREAT WILL DIMINISH…AND MOVE EAST OF THE NORMAN
FORECAST AREA AROUND MIDNIGHT.
PROBABILITY TABLE…
VALID THROUGH 700 AM CDT TUESDAY MAY 21.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA…100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…NEAR 100 PERCENT.
OTHER HAZARDOUS WEATHER…
HOT…DRY…AND BREEZY CONDITIONS WILL RESULT IN ELEVATED WILDFIRE
POTENTIAL IN WESTERN NORTH TEXAS THIS AFTERNOON AND EARLY EVENING.
.DAYS TWO THROUGH SEVEN…TUESDAY THROUGH SUNDAY…
THUNDERSTORM OUTLOOK…
SEVERE STORMS WILL BE POSSIBLE AGAIN ON TUESDAY…MAINLY ACROSS THE
SOUTHEAST HALF OF OKLAHOMA. ISOLATED SEVERE STORMS WILL BE POSSIBLE
EACH DAY FROM WEDNESDAY THROUGH FRIDAY. THUNDERSTORMS ARE NOT
CURRENTLY EXPECTED ON SATURDAY AND SUNDAY.
OTHER HAZARDOUS WEATHER…
NONE.
Monday forecast, National Weather Service, Norman
Hazardous weather outlook, National Weather Service, Norman
HAZARDOUS WEATHER OUTLOOK…UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
959 PM CDT SUN MAY 19 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-
959 PM CDT SUN MAY 19 2013
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN…WESTERN…
CENTRAL…AND SOUTHERN OKLAHOMA…AND WESTERN NORTH TEXAS.
.DAY ONE…REST OF TONIGHT…
THUNDERSTORM OUTLOOK…
THUNDERSTORMS WILL REMAIN POSSIBLE THROUGH 1 AM ACROSS PARTS OF NORTH
CENTRAL AND CENTRAL OKLAHOMA. A FEW OF THESE STORMS COULD BECOME
SEVERE.
DISCUSSION…
THUNDERSTORMS CONTINUE TO DEVELOP NEAR A FRONTAL BOUNDARY ACROSS PORTIONS
OF NORTH CENTRAL AND CENTRAL OKLAHOMA AROUND MID-EVENING. THUNDERSTORMS
WILL REMAIN POSSIBLE IN THESE AREAS THROUGH 1 AM. A FEW OF THE STORMS
COULD BECOME SEVERE PRODUCING HAIL UP TO THE SIZE OF HALF DOLLARS AND
WIND GUSTS TO 65 MPH. THE STORMS ARE EXPECTED TO END ACROSS THE AREA
EARLY MONDAY MORNING.
PROBABILITY TABLE…
VALID THROUGH 700 AM CDT MONDAY MAY 20.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA…100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR…30 PERCENT.
OTHER HAZARDOUS WEATHER…
NONE.
.DAYS TWO THROUGH SEVEN…MONDAY THROUGH SATURDAY…
THUNDERSTORM OUTLOOK…
STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AGAIN ON MONDAY AND
TUESDAY…MAINLY ACROSS THE EASTERN TWO THIRDS OF OKLAHOMA. THERE
WILL BE AT LEAST A SLIGHT CHANCE OF THUNDERSTORMS EACH DAY FROM
WEDNESDAY THROUGH SATURDAY.
OTHER HAZARDOUS WEATHER…
NONE.
Preliminary Tornado Tracks, from the National Weather Service, Norman
Oklahoma Department of Emergency Management, 8:20 p.m., Situation Update
Oklahoma Electric Cooperative reports 11,110 outages:
OG&E reports 6,696 outages:
Edmond – 918
McLoud – 2,059
Norman – 649
OKC North – 2,114
Wellston – 956
Central Rural Electric Cooperative reports 1,959 outages:
Lincoln County: 1634
Logan County: 44
Noble County: 1
Oklahoma County – 180
Edmond Electric reports 4,011 outages.
DIAL 211
Severe thunderstorm warning, Kay County
OKC071-200115-
/O.CON.KOUN.SV.W.0311.000000T0000Z-130520T0115Z/
KAY OK-
751 PM CDT SUN MAY 19 2013
…A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR CENTRAL KAY COUNTY…
AT 750 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT SEVERE THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM 6
MILES WEST OF CHILOCCO TO 6 MILES NORTHEAST OF BLACKWELL…MOVING
NORTHEAST AT 40 MPH.
HAZARDS IN THE WARNING INCLUDE…
LARGE DAMAGING HAIL UP TO GOLF BALL SIZE…
DAMAGING WINDS IN EXCESS OF 60 MPH…
LOCATIONS IMPACTED INCLUDE…
BLACKWELL…NEWKIRK…CHILOCCO AND PECKHAM.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED.
Tornado warning Creek, Ofuskee counties
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
742 PM CDT SUN MAY 19 2013
CREEK OK-OKFUSKEE OK-
742 PM CDT SUN MAY 19 2013
…TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR CENTRAL
OKFUSKEE AND SOUTHERN CREEK COUNTIES…
AT 739 PM CDT…A SEVERE THUNDERSTORM WITH STRONG LOW LEVEL ROTATION
WAS LOCATED NEAR WELTY…MOVING NORTHEAST AT 35 MPH. THIS STORM
PRODUCED A TORNADO WEST OF PRAGUE…AND ANOTHER TORNADO IS OCCURRING
OR IMMINENT.
THIS STORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
IF YOU ARE NEAR THE PATH OF THIS STORM…TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW! IF YOU WAIT
TO SEE OR HEAR IT COMING…IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
Severe thunderstorm warning Kay County
BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
729 PM CDT SUN MAY 19 2013
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR…
CENTRAL KAY COUNTY IN NORTHERN OKLAHOMA…
* UNTIL 815 PM CDT
* AT 727 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
SEVERE THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM 3 MILES
NORTHEAST OF NARDIN TO 5 MILES EAST OF LAMONT…MOVING NORTHEAST AT
35 MPH.
HAZARDS IN THE WARNING INCLUDE…
HALF DOLLAR SIZE HAIL…
DAMAGING WINDS IN EXCESS OF 60 MPH…
* LOCATIONS IMPACTED INCLUDE…
BLACKWELL…TONKAWA…NEWKIRK…BRAMAN…NARDIN…CHILOCCO AND
PECKHAM.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED.
