Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 76, NWS Norman, OK

April 1, 2015Noble County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Apr 1, 2015, 12:43 AM CDT for Noble County, Oklahoma. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 1, 2015, 12:43 AM CDT (05:43 UTC)
Expired: Apr 1, 2015, 1:30 AM CDT
In force: 47 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Noble County, OK

The radar

The Vance AFB radar (KVNX), 91 km from the middle of the area, began a volume at 05:46 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 5.7 hours before the alert went out and 118 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: 1642 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 1964 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

158 
WUUS54 KOUN 010543
SVROUN
OKC103-010630-
/O.NEW.KOUN.SV.W.0076.150401T0543Z-150401T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
1243 AM CDT WED APR 1 2015

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN NOBLE COUNTY IN NORTHERN OKLAHOMA...

* UNTIL 130 AM CDT

* AT 1243 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PERRY...
  MOVING NORTHEAST AT 10 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PERRY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3618 9728 3621 9741 3637 9737 3640 9722
      3631 9715
TIME...MOT...LOC 0543Z 205DEG 9KT 3625 9730 

HAIL...1.25IN
WIND...60MPH
 
$$

KURTZ

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 1, 12:28 AM CDT, 15 minutes earlier.

Area forecast discussion, Apr 1, 12:28 AM CDT, 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1228 AM CDT WED APR 1 2015

.DISCUSSION...
STORMS HAVE BECAME ORGANIZED ACROSS THE CENTRAL THIRD OF
OKLAHOMA...TRANSITIONING TO MORE OF A WIND AND HEAVY RAINFALL
THREAT COMPARED TO LARGE HAIL. THINK STORMS WILL CONTINUE TO
WEAKEN AS THEY MOVE EAST...HOWEVER A FEW MORE SEVERE REPORTS ARE
POSSIBLE.

AVIATION DISCUSSION FOR THE 06Z TAFS IS BELOW.

MBS

&&

.AVIATION...
TSRA WILL MOVE EAST OF ALL TAF SITES BY 07Z.

OVERALL...BELIEVE VFR CONDITIONS WILL OCCUR. WIDESPREAD IFR
CONDITIONS WITH BR COULD DEVELOP 09-18Z ACROSS THE AREA...THOUGH
CONFIDENCE OF OCCURRENCE IS DECREASING. HAVE HIGH CONFIDENCE THAT
ALL SITES WILL BE VFR AFTER 18Z.

SOUTH WINDS WILL BECOME GUSTY AT ALL SITES 14-18Z...ESPECIALLY IN
WESTERN OKLAHOMA.

THERE ARE CHANCES FOR ADDITIONAL TSRA AFTER 21Z ACROSS THE
AREA...BUT CHANCES OF OCCURRENCE ARE TOO LOW TO MENTION.

MBS

&&

.PREV DISCUSSION... /ISSUED 1006 PM CDT TUE MAR 31 2015/

UPDATE...
INCREASED RAIN CHANCES TONIGHT NEAR THE TWO CLUSTERS OF SEVERE
STORMS.

DISCUSSION...
THE SEVERE THREAT CONTINUES TONIGHT.

TWO MAIN CLUSTERS OF STORMS CONTINUE TO MOVE EAST AND SOUTHEAST.
THE NORTHERN CLUSTER MAY MOVE INTO THE OKLAHOMA CITY METRO AREA
AROUND MIDNIGHT AND THE SOUTHERN CLUSTER WILL AFFECT LAWTON AND
PERHAPS WICHITA FALLS OVER THE NEXT 1-2 HOURS. OVERALL...THINK
THE CLUSTERS WILL GRADUALLY WEAKEN THROUGH THE NIGHT.

THINK A HANDFUL OF SEVERE REPORTS WILL CONTINUE FOR THE NEXT FEW
HOURS...MAINLY HAIL SMALLER THAN GOLF BALLS AND MARGINAL SEVERE
WIND AROUND 60 MPH.

PRODUCTS HAVE BEEN UPDATED.

MBS

PREV DISCUSSION... /ISSUED 636 PM CDT TUE MAR 31 2015/

UPDATE...
STORMS WILL LIKELY CONTINUE TO INCREASE IN COVERAGE AND INTENSITY
OVER THE NEXT FEW HOURS.

DISCUSSION...
ISOLATED TO SCATTERED STORMS HAVE DEVELOPED OVER WEST TEXAS AND
CONTINUE TO MOVE INTO WESTERN OKLAHOMA. LATEST HRRR RUNS SUGGEST
THAT STORM COVERAGE WILL INCREASE AS THEY MOVE INTO DEEPER
MOISTURE AND A MORE UNSTABLE ENVIRONMENT OVER THE NEXT FEW
HOURS. HOWEVER...NOT COMPLETELY SURE THIS WILL OCCUR AS MID/UPPER
FORCING REMAINS WEAK. LATEST HRRR RUNS SEEM TO BE OVERCONVECTING
ACROSS SOUTHERN OKLAHOMA AT THIS TIME.

EXPECT SOME SEVERE HAIL AND WIND REPORT THROUGH THE EVENING. HAIL
MAY GET UP TO GOLF BALLS. TORNADO THREAT APPEARS TO BE VERY LOW
DUE TO WEAK LOW LEVEL SHEAR. LATEST HRRR COMPOSITE REFLECTIVITIES
SUGGESTED THAT CURRENT ISOLATED TO SCATTERED STORMS MAY ORGANIZE
INTO A CLUSTER OR LINE OVER THE NEXT SEVERAL HOURS...WHICH COULD
AFFECT THE OKLAHOMA CITY METRO AREA IN THE 10 PM TO 1 AM TIME
FRAME.

CURRENT FORECAST HAS NOT BEEN ALTERED...THOUGH RAIN CHANCES MAY
NEED TO BE INCREASED TONIGHT. WILL CLOSELY MONITOR.

AVIATION DISCUSSION FOR THE 00Z TAFS IS BELOW.

MBS

PREV DISCUSSION... /ISSUED 317 PM CDT TUE MAR 31 2015/

DISCUSSION...
CUMULUS HAS FORMED OVER MUCH OF CENTRAL AND SOUTHERN
OKLAHOMA...INTO NORTH TEXAS. CONVECTIVE INHIBITION IS STILL
STRONG OVER MOST OF THE AREA...ALTHOUGH IT HAS WEAKENED A LOT IN
THE SOUTHEAST PARTS OF OKLAHOMA. WE EXPECT LARGELY UNFOCUSED
CONVECTION LATER THIS AFTERNOON AND EVENING...ALTHOUGH CONVECTION
MAY CREATE ITS OWN FOCUS LATER TONIGHT. AS NOTED
ELSEWHERE...SEVERE STORMS ARE A POSSIBILITY.

TOMORROW WILL BE VERY BREEZY AND WARM. THERE MAY BE SOME FOG IN
THE MORNING AGAIN...MOST LIKELY NEAR/NORTH OF I-40. A STRONGER CAP
WILL LIMIT STORM CHANCES...BUT IF STORMS DO DEVELOP...THEY WOULD
PROBABLY DO SO VERY QUICKLY...AND BE RATHER STRONG.

THE GENERAL FLOW WILL MAINTAIN A FAIRLY STRONG CAPPING
INVERSION...WHICH WILL CONTINUE TO LIMIT STORM CHANCES THROUGH
FRIDAY.

ON FRIDAY...A FRONT WILL FINALLY SWEEP SOUTHEAST ACROSS OKLAHOMA
AND NORTH TEXAS...TEMPORARILY BRINGING AN END TO EVEN THE LOW RAIN
CHANCES OF THE PREVIOUS COUPLE OF DAYS.

SATURDAY WILL BE THE ONE DAY WITHOUT ANY CHANCE OF RAIN...BUT
MOISTURE WILL BEGIN ITS NORTHWARD ADVANCE BY EVENING...AND RAIN
CHANCES PROMPTLY SPREAD NORTH AGAIN LATE SATURDAY NIGHT INTO
SUNDAY.

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...FIRE WEATHER WATCH FROM THIS AFTERNOON THROUGH THIS EVENING FOR
     OKZ004-005-009-010-014.

TX...NONE.
&&

17

Hazardous weather outlook, Mar 31, 9:49 PM CDT, 2 hours 54 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
949 PM CDT TUE MAR 31 2015

OKZ004>048-050>052-TXZ083>090-020245-
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-
949 PM CDT TUE MAR 31 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN...
WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS.

.DAY ONE...REST OF TONIGHT...

.THUNDERSTORMS...
THERE IS A SLIGHT RISK OF SEVERE STORMS IN CENTRAL AND SOUTHERN
OKLAHOMA AND ADJACENT PARTS OF NORTH TEXAS.

.LOCATION...
THE RISK AREA IS SOUTH AND EAST OF A SEYMOUR TEXAS TO ALTUS
TO CLINTON TO CHANDLER LINE...INCLUDING THE THE OKLAHOMA CITY...
LAWTON...WICHITA FALLS...ADA...AND DURANT AREAS.

.TIMING...
SEVERE THUNDERSTORMS WILL BE POSSIBLE THROUGH 2 AM TONIGHT.

.IMPACTS...
LARGE HAIL TO THE SIZE OF GOLF BALLS AND WIND GUSTS TO 65 MPH
ARE THE MAIN HAZARDS. FREQUENT CLOUD-TO-GROUND LIGHTNING AND
LOCALLY HEAVY RAINFALL WILL ALSO OCCUR WITH THE STRONGER STORMS.
THE RISK FOR TORNADOES IS VERY LOW.

.DISCUSSION...
TWO MAIN CLUSTERS OF SEVERE STORMS WILL SLOWLY MOVE EAST OR
SOUTHEAST FOR THE REST OF TONIGHT. STORMS ARE EXPECTED TO SLOWLY
WEAKEN AFTER MIDNIGHT.

OTHER ISOLATED TO SCATTERED THUNDERSTORMS WILL OCCUR NEAR A WEAK
STATIONARY FRONT ACROSS CENTRAL AND SOUTH CENTRAL OKLAHOMA.

STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL WITHIN THE
SLIGHT RISK AREA SHOULD CONTINUE TO BE READY FOR SEVERE WEATHER
OPERATIONS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

.THUNDERSTORMS...
WEDNESDAY AFTERNOON THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS IN
NORTHWESTERN OKLAHOMA. THERE IS A MARGINAL RISK FOR SEVERE THUNDERSTORMS
IN MUCH OF THE REST OF OKLAHOMA APART FROM THE SOUTHEAST. THE MARGINAL
RISK EXTENDS INTO PART OF NORTH TEXAS. OTHER STRONG STORMS MAY DEVELOP
ALONG A COLD FRONT LATE WEDNESDAY NIGHT AND EARLY THURSDAY MORNING
IN NORTHERN OKLAHOMA. LARGE HAIL AND DAMAGING WINDS WILL BE THE
MAIN HAZARDS.

THE COLD FRONT WILL STALL OVER NORTHERN OKLAHOMA EARLY THURSDAY...BUT
WILL PUSH SOUTHWARD LATE IN THE DAY AS AN UPPER LEVEL SYSTEM APPROACHES.
STRONG TO SEVERE STORMS MAY FORM ALONG THE FRONT LATE THURSDAY
AFTERNOON AND NIGHT...ESPECIALLY ALONG AND SOUTHEAST OF STILLWATER...
OKLAHOMA CITY...AND ARDMORE. LARGE HAIL AND DAMAGING WINDS WILL BE THE
MAIN HAZARDS.

THUNDERSTORMS WILL BE POSSIBLE AGAIN LATE SATURDAY INTO SUNDAY...
ESPECIALLY ACROSS SOUTHERN OKLAHOMA. ADDITIONAL STORMS ARE POSSIBLE
ON MONDAY.

.FIRE WEATHER...
HOT AND DRY CONDITIONS ARE EXPECTED IN FAR NORTHWEST OKLAHOMA WEDNESDAY
AFTERNOON. THIS COMBINED WITH GUSTY SOUTH WINDS WILL LIKELY RESULT IN
CRITICAL FIRE WEATHER CONDITIONS.

VERY HIGH FIRE DANGER IS EXPECTED IN SOUTHWEST OKLAHOMA AND WESTERN
NORTH TEXAS THURSDAY AFTERNOON.

GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW
OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.

MBS

In the hours before

Local storm report, Apr 1, 12:10 AM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1210 AM CDT WED APR 01 2015

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

1201 AM     FLOOD            MIDWEST CITY            35.46N 97.39W
04/01/2015                   OKLAHOMA           OK   TRAINED SPOTTER

            STREET FLOODING.

&&

MDAY

Local storm report, Apr 1, 12:22 AM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1222 AM CDT WED APR 01 2015

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

1221 AM     FLASH FLOOD      OKLAHOMA CITY           35.47N 97.51W
04/01/2015                   OKLAHOMA           OK   BROADCAST MEDIA

            FLOODING VIDEO ON CHANNEL 9.

&&

MDAY

Local storm report, Apr 1, 12:23 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1223 AM CDT WED APR 01 2015

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

1220 AM     TSTM WND GST     PAULS VALLEY            34.74N 97.22W
04/01/2015  E60 MPH          GARVIN             OK   AMATEUR RADIO

&&

MAUSTIN

Local storm report, Apr 1, 12:29 AM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1229 AM CDT WED APR 01 2015

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

1228 AM     TSTM WND DMG     CHOCTAW                 35.49N 97.26W
04/01/2015                   OKLAHOMA           OK   FIRE DEPT/RESCUE

            LARGE TREE DOWN ON ROAD BLOCKING BOTH LANES OF TRAFFIC.

&&

MDAY

Local storm report, Apr 1, 12:33 AM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1233 AM CDT WED APR 01 2015

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

1231 AM     TSTM WND DMG     OKLAHOMA CITY           35.47N 97.51W
04/01/2015                   OKLAHOMA           OK   BROADCAST MEDIA

            TREES AND POWERLINES DOWN AT NW 8TH AND WESTERN.

&&

MDAY

Local storm report, Apr 1, 12:36 AM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1236 AM CDT WED APR 01 2015

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

1230 AM     TSTM WND DMG     PAULS VALLEY            34.74N 97.22W
04/01/2015                   GARVIN             OK   AMATEUR RADIO

            TREES SNAPPED OR UPROOTED

&&

MDAY

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 7:05 PM CDT	Special Weather Statement	OUN	Harmon	40 min
Mar 31, 7:10 PM CDT	Special Weather Statement	OUN	Roger Mills	35 min
Mar 31, 7:13 PM CDT	Special Weather Statement	OUN	Jackson	32 min
Mar 31, 7:16 PM CDT	Special Weather Statement	OUN	Pottawatomie	44 min
Mar 31, 7:28 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	47 min
Mar 31, 7:37 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	25 min
Mar 31, 7:41 PM CDT	Special Weather Statement	OUN	Dewey	34 min
Mar 31, 7:45 PM CDT	Special Weather Statement	OUN	Harmon	30 min
Mar 31, 7:48 PM CDT	Special Weather Statement	OUN	Beckham	27 min
Mar 31, 7:51 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer	39 min
Mar 31, 7:54 PM CDT	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	51 min
Mar 31, 7:57 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Roger Mills	33 min
Mar 31, 7:59 PM CDT	Special Weather Statement	OUN	Harmon	31 min
Mar 31, 8:05 PM CDT	Special Weather Statement	OUN	Jackson	25 min
Mar 31, 8:10 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	35 min
Mar 31, 8:14 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	46 min
Mar 31, 8:18 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	25 min
Mar 31, 8:22 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Roger Mills	23 min
Mar 31, 8:22 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	23 min
Mar 31, 8:23 PM CDT	Special Weather Statement	OUN	Roger Mills	37 min
Mar 31, 8:39 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Roger Mills, Washita	51 min
Mar 31, 8:42 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	33 min
Mar 31, 8:52 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	23 min
Mar 31, 8:57 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Seminole	48 min
Mar 31, 9:18 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	27 min
Mar 31, 9:24 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	51 min
Mar 31, 9:34 PM CDT	Special Weather Statement	OUN	Kingfisher	41 min
Mar 31, 9:43 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Seminole	47 min
Mar 31, 9:44 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Kiowa, Tillman	31 min
Mar 31, 9:52 PM CDT	Special Weather Statement	OUN	Kingfisher	38 min
Mar 31, 9:58 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher	47 min
Mar 31, 10:03 PM CDT	Special Weather Statement	OUN	Washita	42 min
Mar 31, 10:13 PM CDT	Special Weather Statement	OUN	Comanche, Cotton, Tillman	32 min
Mar 31, 10:13 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	47 min
Mar 31, 10:16 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	29 min
Mar 31, 10:20 PM CDT	Special Weather Statement	OUN	Cleveland	25 min
Mar 31, 10:25 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Grady	50 min
Mar 31, 10:28 PM CDT	Severe Thunderstorm Warning	OUN	Comanche	32 min
Mar 31, 10:31 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Oklahoma	44 min
Mar 31, 10:35 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Grady	40 min
Mar 31, 10:41 PM CDT	Severe Thunderstorm Warning	OUN	Seminole	34 min
Mar 31, 10:43 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher	47 min
Mar 31, 10:43 PM CDT	Severe Thunderstorm Warning	OUN	Logan, Oklahoma	32 min
Mar 31, 10:51 PM CDT	Flash Flood Warning	OUN	Hughes, Seminole	3 hr
Mar 31, 10:55 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	35 min
Mar 31, 10:59 PM CDT	Special Weather Statement	OUN	Stephens	46 min
Mar 31, 11:09 PM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	51 min
Mar 31, 11:11 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	34 min
Mar 31, 11:15 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Seminole	30 min
Mar 31, 11:17 PM CDT	Severe Thunderstorm Warning	OUN	Logan	43 min
Mar 31, 11:26 PM CDT	Areal Flood Advisory	OUN	Canadian, Cleveland, Lincoln, Oklahoma, Pottawatomie	3 hr
Mar 31, 11:27 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie	34 min
Mar 31, 11:34 PM CDT	Special Weather Statement	OUN	Garvin, Stephens	41 min
Mar 31, 11:38 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, Lincoln, Logan, McClain and 1 more	37 min
Mar 31, 11:41 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Grady, Murray, Stephens	49 min
Apr 1, 12:08 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, McClain	23 min
Apr 1, 12:13 AM CDT	Flash Flood Warning	OUN	Cleveland, Oklahoma	2 hr
Apr 1, 12:13 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Lincoln, Oklahoma, Pottawatomie	47 min
Apr 1, 12:19 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Garvin, McClain, Murray, Pontotoc	26 min
Apr 1, 12:40 AM CDT	Severe Thunderstorm Warning	OUN	Garvin, Murray, Pontotoc	35 min
Apr 1, 12:50 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	40 min
Apr 1, 12:52 AM CDT	Areal Flood Advisory	OUN	Pottawatomie	113 min
Apr 1, 1:04 AM CDT	Special Weather Statement	OUN	Coal, Pontotoc, Seminole	41 min
Apr 1, 1:23 AM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal, Hughes, Johnston, Pontotoc, Pottawatomie and 1 more	52 min
Apr 1, 1:28 AM CDT	Special Weather Statement	OUN	Kay	47 min
Apr 1, 1:38 AM CDT	Flash Flood Warning	OUN	Hughes, Seminole	112 min
Apr 1, 2:03 AM CDT	Special Weather Statement	OUN	Atoka, Bryan	27 min
Apr 1, 2:16 AM CDT	Special Weather Statement	OUN	Pittsburg	29 min
Apr 1, 2:37 AM CDT	Special Weather Statement	OUN	Atoka	23 min
Apr 1, 3:29 AM CDT	Red Flag Warning	OUN	Ellis, Harper, Roger Mills, Woods, Woodward	17 hr
Apr 1, 6:50 AM CDT	Special Weather Statement	OUN	Jefferson	25 min
Apr 1, 7:48 AM CDT	Special Weather Statement	OUN	Marshall	27 min
Apr 1, 8:34 AM CDT	Special Weather Statement	OUN	Bryan	56 min
Apr 1, 5:23 PM CDT	Special Weather Statement	OUN	Harper	37 min
Apr 1, 5:48 PM CDT	Special Weather Statement	OUN	Harper	27 min
Apr 1, 6:19 PM CDT	Special Weather Statement	OUN	Harper	26 min
Apr 1, 6:46 PM CDT	Special Weather Statement	OUN	Woodward	29 min
Apr 1, 6:58 PM CDT	Special Weather Statement	OUN	Harper	32 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2015 Every severe thunderstorm warning in 2015

Sources

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