Alert archive / Oklahoma / Tornado Warnings in 2013

Tornado Warning 61, NWS Norman, OK

May 31, 2013Canadian County, Cleveland County, Oklahoma County, Oklahoma

NWS Norman, OK issued this tornado warning at May 31, 2013, 6:57 PM CDT for Canadian County, Cleveland County, Oklahoma County, Oklahoma. It was in force for 48 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 31, 2013, 6:57 PM CDT (23:57 UTC)
Expired: May 31, 2013, 7:45 PM CDT
In force: 48 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Emergency: Tornado emergency

Counties Canadian County, OK, Cleveland County, OK, Oklahoma County, OK

The radar

The Norman radar (KTLX), 26 km from the middle of the area, began a volume at 23:55 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
May 31, 7:10 PM CDT	TSTM WND GST 60	4 W Oklahoma City, OK
May 31, 7:20 PM CDT	TSTM WND GST 73	4 W Oklahoma City, OK
May 31, 7:33 PM CDT	TORNADO	2 Ene Valley Brook, OK	EF-0 TORNADO TRAVELLED FROM CREEKWOOD TERR. EASTWARD TO KEITH DR.
May 31, 7:36 PM CDT	HAIL 1.25	5 W Oklahoma City, OK	I40 AND MERIDIAN
May 31, 7:50 PM CDT	TORNADO	1 Nw Moore, OK	EF-0 TORNADO TRAVELLED FROM NW 5TH ST. SOUTHEAST TO WEST MAIN ST.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this tornado warning; the first came 36 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 31, 3:27 PM CDT	Tornado Watch PDS	SPC	9 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 12.0 hours before the alert went out and 25 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 3114 J/kg
Mixed-layer CIN: -161 J/kg
Mixed-layer LCL: 566 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 585 m²/s²
0-3 km storm-relative helicity: 551 m²/s²
Significant tornado parameter: 2.3
Supercell composite: 12.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

504 
WFUS54 KOUN 312357
TOROUN
OKC017-027-109-010045-
/O.NEW.KOUN.TO.W.0061.130531T2357Z-130601T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
657 PM CDT FRI MAY 31 2013

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL OKLAHOMA COUNTY IN CENTRAL OKLAHOMA...
  NORTHWESTERN CLEVELAND COUNTY IN CENTRAL OKLAHOMA...
  EASTERN CANADIAN COUNTY IN CENTRAL OKLAHOMA...

* UNTIL 745 PM CDT
    
* AT 651 PM CDT...A THUNDERSTORM WITH A HISTORY OF PRODUCING STRONG
  DAMAGING TORNADOES WAS LOCATED 4 MILES SOUTHWEST OF BETHANY. A TORNADO 
  MAY DEVELOP AGAIN AT ANY TIME. DOPPLER RADAR SHOWED THIS DANGEROUS
  STORM MOVING EAST TO SOUTHEAST AT 20 MPH.

THIS IS A TORNADO EMERGENCY FOR WILEY POST AIRPORT...WILL ROGERS WORLD
AIRPORT...BETHANY...DOWNTOWN OKLAHOMA CITY...AND NORTH MOORE...TAKE
IMMEDIATE TORNADO PRECAUTIONS NOW.

IN ADDITION TO A TORNADO...DANGEROUS AND EXTREMELY LARGE DESTRUCTIVE
HAIL UP TO SOFTBALL SIZE IS EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  OKLAHOMA CITY...MOORE...DEL CITY...YUKON...BETHANY...MUSTANG...WARR
  ACRES...NICHOLS HILLS...FOREST PARK...VALLEY BROOK AND LAKE ALUMA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY
BUILDING. STAY AWAY FROM DOORS AND WINDOWS.

DO NOT STOP UNDER BRIDGES OR HIGHWAY OVERPASSES. THEY WILL NOT
PROTECT YOU FROM A TORNADO.
&&

LAT...LON 3526 9743 3539 9777 3556 9774 3556 9739
TIME...MOT...LOC 2354Z 283DEG 16KT 3546 9768 

$$

AUSTIN

2 follow-up statements

765 
WWUS54 KOUN 010011
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
711 PM CDT FRI MAY 31 2013

OKC017-010018-
/O.CAN.KOUN.TO.W.0061.000000T0000Z-130601T0045Z/
CANADIAN OK-
711 PM CDT FRI MAY 31 2013

...THE TORNADO WARNING FOR EASTERN CANADIAN COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THIS 
AREA...THOUGH ANOTHER TORNADIC STORM WAS LOCATED NEAR UNION CITY AND MAY 
IMPACT THIS ARE IN THE NEXT COUPLE OF HOURS.

LAT...LON 3526 9743 3537 9768 3545 9768 3556 9764
      3556 9739
TIME...MOT...LOC 0008Z 283DEG 16KT 2956 6201 

$$

OKC027-109-010045-
/O.CON.KOUN.TO.W.0061.000000T0000Z-130601T0045Z/
OKLAHOMA OK-CLEVELAND OK-
711 PM CDT FRI MAY 31 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR CENTRAL
OKLAHOMA AND NORTHWESTERN CLEVELAND COUNTIES...

AT 705 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM
SPOTTERS WERE TRACKING A CONFIRMED STRONG TORNADO ONE MILE SOUTH
OF THE FAIRGROUNDS. THIS TORNADO WAS MOVING EAST TO SOUTHEAST AT 20 MPH.

..THIS IS A TORNADO EMERGENCY FOR DOWNTOWN OKLAHOMA CITY...INCLUDING
THE FAIRGROUNDS...WILL ROGERS WORLD AIRPORT...THE CAPITOL...VALLEY BROOK
...NORTH MOORE...AND DEL CITY...

IN ADDITION TO A TORNADO...LARGE DESTRUCTIVE HAIL UP TO SOFTBALL SIZE
IS EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
OKLAHOMA CITY...MOORE...DEL CITY...BETHANY...WARR ACRES...NICHOLS
HILLS...FOREST PARK...VALLEY BROOK AND LAKE ALUMA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY
BUILDING. STAY AWAY FROM DOORS AND WINDOWS.

DO NOT STOP UNDER BRIDGES OR HIGHWAY OVERPASSES. THEY WILL NOT
PROTECT YOU FROM A TORNADO.

THE TORNADO MAY BE HIDDEN BY RAIN AND VERY DIFFICULT TO SEE. DO NOT
WAIT. TAKE COVER NOW.
&&

LAT...LON 3526 9743 3537 9768 3545 9768 3556 9764
      3556 9739
TIME...MOT...LOC 0005Z 283DEG 16KT 2956 6201 

$$

AUSTIN

700 
WWUS54 KOUN 010033
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
733 PM CDT FRI MAY 31 2013

OKC027-109-010045-
/O.CON.KOUN.TO.W.0061.000000T0000Z-130601T0045Z/
OKLAHOMA OK-CLEVELAND OK-
733 PM CDT FRI MAY 31 2013

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR
SOUTHWESTERN OKLAHOMA AND NORTHERN CLEVELAND COUNTIES...

AT 728 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS AND STORM
SPOTTERS WERE TRACKING A CONFIRMED TORNADO LOCATED
3 MILES NORTH NORTHWEST OF MOORE...MOVING EAST TO SOUTHEAST
AT 25 MPH.

...THIS IS A TORNADO EMERGENCY FOR NORTH MOORE AND VALLEY BROOK...

IN ADDITION TO A TORNADO...LARGE DESTRUCTIVE HAIL UP TO SOFTBALL SIZE
IS EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
MOORE...DEL CITY AND VALLEY BROOK. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW IN A STORM SHELTER OR AN INTERIOR ROOM OF A STURDY
BUILDING. STAY AWAY FROM DOORS AND WINDOWS.

DO NOT STOP UNDER BRIDGES OR HIGHWAY OVERPASSES. THEY WILL NOT
PROTECT YOU FROM A TORNADO.

THE TORNADO MAY BE HIDDEN BY RAIN AND VERY DIFFICULT TO SEE. DO NOT
WAIT. TAKE COVER NOW.
&&

LAT...LON 3526 9743 3532 9759 3533 9760 3545 9757
      3546 9741
TIME...MOT...LOC 0028Z 283DEG 16KT 2954 6189 

$$

AUSTIN

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this tornado warning went out at May 31, 6:37 PM CDT, 20 minutes earlier.

Area forecast discussion, May 31, 6:37 PM CDT, 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
637 PM CDT FRI MAY 31 2013

.AVIATION...00Z TAF ISSUANCE...
LARGE AND DANGEROUS SUPERCELL PRODUCING A LARGE AND DESTRUCTIVE
TORNADO WILL LIKELY PASS JUST NORTH/NORTHWEST OF KOKC...
THUNDERSTORMS WILL CONTINUE TO IMPACT ALL AIRFIELDS ACROSS CENTRAL
OKLAHOMA OVER THE NEXT 6 HOURS. CEILINGS WILL VARY FROM IFR TO
MVFR WITH STRONG WIND GUSTS IN ALL DIRECTIONS AND FREQUENT
LIGHTNING. AIRFIELDS IN WESTERN AND NORTHWESTERN OKLAHOMA WILL
LIKELY REMAIN VFR THROUGH THE END OF THE PERIOD.

JTK

&&

.PREV DISCUSSION... /ISSUED 528 PM CDT FRI MAY 31 2013/

UPDATE...
UPDATED POPS/WX...

DISCUSSION...
WITH STORMS FINALLY DEVELOPING ALONG THE FRONT ACROSS CENTRAL AND
NORTHERN OKLAHOMA WEST OF THE METRO...UPDATED POPS AND WX THROUGH
12Z. SHOULD SEE THIS LINE SLOWLY PUSH EASTWARD THROUGH THE
EVENING. BESIDES SIGNIFICANT SEVERE WEATHER...DAMAGING
HAIL...WINDS...AND TORNADOES...THE SLOW NATURE OF THE SYSTEM WILL
LIKELY RESULT IN AN INCREASED FLOOD/FLASH FLOOD RISK THROUGH THE
EVENING ACROSS NORTH CENTRAL OKLAHOMA.

JTK

PREV DISCUSSION... /ISSUED 256 PM CDT FRI MAY 31 2013/

DISCUSSION...
MAIN ATTENTION THIS AFTERNOON IS ON THE IMMINENT SEVERE WEATHER
EVENT. FOR THE GENERAL FORECAST...ONLY A FEW CHANGES WERE MADE AS
COMPARED WITH THE FORECAST ISSUED THIS MORNING. RAIN CHANCES AND
RAINFALL AMOUNTS FOR TONIGHT AND TOMORROW WERE REFINED
SLIGHTLY...BASED ON THE LATEST EXPECTATIONS.

THE GENERAL SITUATION BEGINS WITH A HIGHLY VOLATILE ATMOSPHERE
THIS EVENING. WE EXPECT SEVERE STORMS TO DEVELOP LATE THIS
AFTERNOON...THEN CONVERT INTO A HEAVY RAIN EVENT
TONIGHT...GENERALLY AFFECTING AREAS THAT HAVE ALREADY EXPERIENCED
A RATHER LARGE AMOUNT OF RAIN IN THE PAST WEEK OR TWO. A FLASH
FLOOD WATCH IS ALREADY IN EFFECT...AND NO CHANGES APPEAR TO BE
PRUDENT AT THIS TIME.

AS THE STORM SYSTEM SHIFTS EAST AND SOUTHEAST DURING THE DAY
TOMORROW...THE RAIN WILL LIKEWISE SHIFT IN POSITION. WE EXPECT THE
RAIN TO BE MAINLY OVER SOUTHEAST AND SOUTH-CENTRAL OKLAHOMA BY
TOMORROW AFTERNOON. THE RAIN SHOULD END ENTIRELY BY SUNDAY
MORNING. AFTER A RAIN-FREE AND UNSEASONABLY MILD DAY ON
SUNDAY...RAIN RETURNS TO THE FORECAST ON MONDAY. THERE WILL BE AT
LEAST A SLIGHT CHANCE OF SHOWERS/THUNDERSTORMS EACH DAY NEXT
WEEK. SEVERE WEATHER NEXT WEEK SHOULD BE RELATIVELY UNCOMMON.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  90  68  81  57 /  70 100  20  10
HOBART OK         96  65  85  55 /  30  30  10  10
WICHITA FALLS TX  99  73  88  59 /  50  30  20  10
GAGE OK           92  57  81  50 /  10  20   0   0
PONCA CITY OK     87  63  79  53 /  90  90  10   0
DURANT OK         90  73  84  61 /  10  30  50  30

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH THROUGH SATURDAY MORNING FOR OKZ007-008-012-
     013-018>020-024>026-028>032.

TX...NONE.
&&

03/04/04

Hazardous weather outlook, May 31, 12:49 PM CDT, 6 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1249 PM CDT FRI MAY 31 2013

OKZ004>048-050>052-TXZ083>090-011000-
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-
1249 PM CDT FRI MAY 31 2013

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

THUNDERSTORM OUTLOOK...
SEVERE THUNDERSTORMS CAN BE EXPECTED ACROSS MUCH OF OKLAHOMA AND
WESTERN NORTH TEXAS AFTER 3 PM THIS AFTERNOON.

LOCATION...
THE MODERATE RISK IS ACROSS MAINLY CENTRAL OKLAHOMA...SOUTHEAST
OF A LINE FROM PONCA CITY TO KINGFISHER...EAST OF A LINE FROM
KINGFISHER TO LAWTON...NORTH OF A LINE FROM LAWTON TO ARDMORE...
TO ADA TO HOLDENVILLE. THE OKLAHOMA CITY METRO AREA IS IN THE
MODERATE RISK AREA.

THE SLIGHT RISK IS OUTSIDE THE MODERATE RISK...EAST OF A
MEDFORD TO CLINTON TO ALTUS TO KNOX CITY LINE.

LOCATIONS WEST OF A MEDFORD TO CLINTON TO ALTUS TO KNOX CITY
LINE ARE NOT EXPECTED TO HAVE SEVERE STORMS THROUGH TONIGHT.

IMPACTS...
THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING...

HAIL UP TO THE SIZE OF SOFTBALLS...
TORNADOES...
DAMAGING WIND GUSTS OF 75 MPH...
HEAVY RAINFALL LEADING TO FLOODING...

TIMING...
THE MOST LIKELY TIME FOR SEVERE STORMS WILL BE BETWEEN 3 PM THIS
AFTERNOON AND MIDNIGHT TONIGHT. A FEW SEVERE STORMS MAY CONTINUE
AFTER MIDNIGHT TONIGHT.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS
THE RISK AREA SHOULD BE PREPARED FOR SEVERE WEATHER OPERATIONS
LATE THIS AFTERNOON INTO TONIGHT.

DISCUSSION...
FIRST STORM DEVELOPMENT WILL BE NEAR OR JUST EAST OF A DRYLINE
AND STATIONARY FRONT COMBINATION...BETWEEN 3 AND 6 PM TODAY...
SOMEWHERE NEAR A PONCA CITY TO HOBART TO VERNON TEXAS LINE. THESE
STORMS WILL INTENSIFY RAPIDLY AND MOST LIKELY BE DISCRETE SUPERCELLS
AS THEY MOVE INTO CENTRAL OKLAHOMA.

THE POTENTIAL FOR TORNADOES AND VERY LARGE HAIL WILL BE GREATEST IN
THE MODERATE RISK AREA FROM 4 PM TO 10 PM FROM DISCRETE SUPERCELLS
AS THE WIND SHEAR INCREASES ACROSS THE AREA.

STORMS THIS EVENING WILL LIKELY CONSOLIDATE INTO CLUSTERS AND LINES ALONG
OR AHEAD OF A COLD FRONT...THEN MOVE SOUTHEAST THROUGHOUT THE NIGHT...
WITH AN INCREASING DAMAGING WIND...HEAVY RAINFALL AND FLOODING THREAT...
AND DECREASING LARGE HAIL AND TORNADO THREAT. THUNDERSTORMS WILL CONTINUE
AFTER MIDNIGHT TONIGHT...MAINLY ACROSS THE CENTRAL AND EASTERN PART OF
OKLAHOMA...THOUGH THE SEVERE POTENTIAL WILL SLOWLY DIMINISH THROUGHOUT
THE NIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SATURDAY JUN 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...100 PERCENT.

OTHER HAZARDOUS WEATHER...
HEAVY RAINFALL COULD LEAD TO FLASH FLOODING LATE THIS AFTERNOON INTO
SATURDAY AS THE FRONT SLOWLY MOVES SOUTH INTO THE VERY MOIST AIRMASS.
RAINFALL AMOUNTS OF 2 TO 4 INCHES...WITH LOCALLY HIGHER AMOUNTS...ARE
POSSIBLE IN SOME LOCATIONS. WITH ALREADY SATURATED GROUND IN SOME
AREAS...THIS HEAVY RAIN COULD LEAD TO FLASH FLOODING. A FLASH FLOOD
WATCH IS IN EFFECT FOR PARTS OF NORTHERN AND CENTRAL OKLAHOMA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

THUNDERSTORM OUTLOOK...
THUNDERSTORMS WILL BE POSSIBLE ACROSS MAINLY SOUTHERN OKLAHOMA AND WESTERN
NORTH TEXAS SATURDAY. THE RISK OF SEVERE STORMS WILL DIMINISH SATURDAY...
BUT THE POTENTIAL FOR HEAVY RAINFALL WILL CONTINUE.

A BRIEF DRY PERIOD WILL OCCUR SUNDAY BEFORE STORM CHANCES RETURN MONDAY
AND CONTINUE THROUGH NEXT WEEK.

OTHER HAZARDOUS WEATHER...
NONE.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY
5 AM SATURDAY.

MAXWELL/MBS

In the hours before

Special weather statement, May 31, 4:58 PM CDT, 1 hour 59 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
458 PM CDT FRI MAY 31 2013

OKZ012-312230-
GARFIELD OK-
458 PM CDT FRI MAY 31 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL GARFIELD COUNTY UNTIL 530
PM CDT...

AT 452 PM CDT...A STRONG THUNDERSTORM WAS LOCATED NEAR HENNESSEY...
MOVING NORTHEAST AT 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
ENID...WAUKOMIS...GARBER...COVINGTON...DRUMMOND...BRECKENRIDGE...
FAIRMONT...DOUGLAS...VANCE AIR FORCE BASE...BISON AND NORTH ENID.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STORM INTENSITY IS INCREASING AND SEVERE WEATHER MAY DEVELOP RAPIDLY.
STAY ALERT AND LISTEN FOR WARNINGS.

&&

LAT...LON 3658 9758 3617 9756 3618 9809 3635 9810
TIME...MOT...LOC 2152Z 230DEG 26KT 3615 9793

WR

Local storm report, May 31, 5:06 PM CDT, 1 hour 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
506 PM CDT FRI MAY 31 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0459 PM     HAIL             2 NE GREENFIELD         35.75N 98.35W
05/31/2013  E1.25 INCH       BLAINE             OK   PUBLIC

            A FEW QUARTER TO HALF DOLLAR HAIL STONES

&&

DW

Special weather statement, May 31, 5:27 PM CDT, 1 hour 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
527 PM CDT FRI MAY 31 2013

OKZ037-038-044-312245-
COTTON OK-TILLMAN OK-COMANCHE OK-
527 PM CDT FRI MAY 31 2013

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN COTTON...SOUTHEASTERN
TILLMAN AND SOUTHERN COMANCHE COUNTIES UNTIL 545 PM CDT...

AT 524 PM CDT...A DEVELOPING THUNDERSTORM WAS LOCATED 5 MILES EAST
OF LOVELAND...MOVING EAST-NORTHEAST AT 25 MPH. THIS STORM IS BEING
MONITORED CLOSELY FOR RAPID INTENSIFICATION AND COULD BECOME SEVERE
QUICKLY.

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
GRANDFIELD...CHATTANOOGA...FAXON AND COOKIETOWN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3438 9880 3452 9852 3427 9840 3421 9872
TIME...MOT...LOC 2224Z 249DEG 23KT 3433 9868

Special weather statement, May 31, 5:59 PM CDT, 58 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
559 PM CDT FRI MAY 31 2013

OKZ018>020-023>025-027>029-312345-
LOGAN OK-OKLAHOMA OK-KINGFISHER OK-CADDO OK-PAYNE OK-MCCLAIN OK-
GRADY OK-CLEVELAND OK-CANADIAN OK-
559 PM CDT FRI MAY 31 2013

...SIGNIFICANT WEATHER ADVISORY FOR LOGAN...OKLAHOMA...KINGFISHER...
NORTHEASTERN CADDO...SOUTHWESTERN PAYNE...NORTHWESTERN MCCLAIN...
NORTHERN GRADY...CLEVELAND AND CANADIAN COUNTIES UNTIL 645 PM CDT...

...THIS IS A SPECIAL FORECAST FOR THE TORNADO RECOVERY AREAS...

AT 550 PM...SEVERAL SEVERE THUNDERSTORMS WERE WEST AND NORTHWEST OF
THE OKLAHOMA CITY METRO AREA. ONE DANGEROUS TORNADIC STORM WAS
LOCATED ALONG INTERSTATE 40 ABOUT 9 MILES WEST OF EL RENO. A TORNADO
IS NOW BEING REPORTED 2 MILES SOUTH OF INTERSTATE 40 MOVING EAST
AROUND 25 MPH. THIS STORM IS EXPECTED TO CONTINUE INTO THE WESTERN
METRO...AND MAY TAKE A MORE SOUTHEASTERLY TRACK TOWARD MUSTANG AND
PARTS OF THE SOUTHERN OKLAHOMA CITY METRO. IF IT MAINTAINS ITS
CURRENT SPEED AND STRENGTH...IT WILL IMPACT THE PREVIOUSLY MENTIONED
LOCATIONS AROUND 700 PM.

ADDITIONAL FORECASTS WILL BE SENT AS THE WEATHER SITUATION EVOLVES
THROUGH THIS EVENING.

LAT...LON 3615 9715 3508 9715 3527 9830 3571 9831
      3572 9819 3615 9819
TIME...MOT...LOC 2246Z 269DEG 17KT 3552 9815

Special weather statement, May 31, 6:49 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
649 PM CDT FRI MAY 31 2013

OKZ008-013-010015-
KAY OK-NOBLE OK-
649 PM CDT FRI MAY 31 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL KAY AND NORTHERN NOBLE
COUNTIES UNTIL 715 PM CDT...

AT 646 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES SOUTHWEST
OF TONKAWA...MOVING NORTHEAST AT 40 MPH. OTHER STRONG THUNDERSTORMS
WERE LOCATED NEAR BRECKENRIDGE MOVING NORTHEAST AT 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
PONCA CITY...TONKAWA...KAW CITY...MARLAND...KILDARE AND KAW LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3675 9681 3675 9689 3668 9694 3670 9704
      3668 9707 3662 9705 3659 9705 3658 9701
      3649 9740 3663 9747 3667 9746 3689 9688
TIME...MOT...LOC 2346Z 228DEG 36KT 3661 9735

WR

Special weather statement, May 31, 6:49 PM CDT, 8 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
649 PM CDT FRI MAY 31 2013

OKZ007-008-012-013-010015-
GRANT OK-GARFIELD OK-KAY OK-NOBLE OK-
649 PM CDT FRI MAY 31 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN GRANT...CENTRAL
GARFIELD...CENTRAL KAY AND NORTHERN NOBLE COUNTIES UNTIL 715 PM
CDT...

AT 646 PM CDT...STRONG THUNDERSTORMS WERE ALONG A LINE EXTENDING FROM
4 MILES WEST OF KAW CITY TO 3 MILES SOUTHWEST OF BRECKENRIDGE...
MOVING NORTHEAST AT 40 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
PONCA CITY...TONKAWA...NEWKIRK...GARBER...BILLINGS...KAW CITY...
MARLAND...BRECKENRIDGE...HUNTER...FAIRMONT...KILDARE...KAW LAKE AND
CERES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.

&&

LAT...LON 3696 9689 3684 9678 3675 9682 3675 9689
      3669 9693 3670 9704 3668 9707 3659 9705
      3660 9691 3658 9689 3655 9690 3630 9788
      3659 9769
TIME...MOT...LOC 2346Z 235DEG 35KT 3677 9695 3640 9777

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 7:04 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, Grady, McClain, Pontotoc, Pottawatomie	56 min
May 30, 7:23 PM CDT	Severe Thunderstorm Warning	OUN	Love	37 min
May 30, 7:45 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray, Pontotoc	45 min
May 30, 7:52 PM CDT	Tornado Warning	OUN	Garvin, Murray	23 min
May 30, 8:05 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray	25 min
May 30, 8:10 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain	35 min
May 30, 8:27 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Murray	63 min
May 30, 8:34 PM CDT	Flash Flood Warning	OUN	Garvin	3 hr
May 30, 8:54 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, Johnston, Murray, Pontotoc	51 min
May 30, 9:02 PM CDT	Special Weather Statement	OUN	Pottawatomie	43 min
May 30, 9:43 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Johnston, Murray, Pontotoc	62 min
May 31, 4:02 PM CDT	Special Weather Statement	OUN	Kay	28 min
May 31, 4:32 PM CDT	Special Weather Statement	OUN	Kay	28 min
May 31, 4:36 PM CDT	Special Weather Statement	OUN	Blaine	24 min
May 31, 4:44 PM CDT	Severe Thunderstorm Warning	OUN	Kay	46 min
May 31, 4:46 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Custer, Kingfisher	44 min
May 31, 4:58 PM CDT	Special Weather Statement	OUN	Garfield	32 min
May 31, 4:58 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher	47 min
May 31, 5:14 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Garfield, Kingfisher, Logan	46 min
May 31, 5:25 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Kingfisher	50 min
May 31, 5:27 PM CDT	Special Weather Statement	OUN	Cotton	18 min
May 31, 5:29 PM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	46 min
May 31, 5:36 PM CDT	Tornado Warning	OUN	Canadian	39 min
May 31, 5:42 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Stephens	63 min
May 31, 5:47 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble, Payne	58 min
May 31, 5:59 PM CDT	Special Weather Statement	OUN	Canadian, Cleveland, Kingfisher, Logan, Oklahoma	46 min
May 31, 6:08 PM CDT	Tornado Warning	OUN	Canadian, Grady	52 min
May 31, 6:19 PM CDT	Tornado Warning	OUN	Logan, Noble, Payne	26 min
May 31, 6:28 PM CDT	Tornado Warning Emergency	OUN	Canadian, Oklahoma	32 min
May 31, 6:37 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Grady, Stephens	53 min
May 31, 6:42 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Noble, Payne	48 min
May 31, 6:49 PM CDT	Special Weather Statement	OUN	Kay	26 min
May 31, 6:58 PM CDT	Tornado Warning	OUN	Canadian, Cleveland, Oklahoma	32 min

Nearby

Tornado Warnings in Oklahoma, 2013 Every tornado warning in 2013 Tornadoes in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.