Alert archive / Oklahoma / Tornado Warnings in 2009

Tornado Warning 17, NWS Norman, OK

April 25, 2009Kay County, Oklahoma

NWS Norman, OK issued this tornado warning at Apr 25, 2009, 8:57 PM CDT for Kay County, Oklahoma. It was in force for 48 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 25, 2009, 8:57 PM CDT (01:57 UTC)
Expired: Apr 25, 2009, 9:45 PM CDT
In force: 48 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

County Kay County, OK

The radar

The Wichita radar (KICT), 81 km from the middle of the area, began a volume at 02:00 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 tornado 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 25, 3:36 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.0 hours before the alert went out and 192 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: 1154 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 1359 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 200 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 9.7

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOUN 260157
TOROUN
OKC071-260245-
/O.NEW.KOUN.TO.W.0017.090426T0157Z-090426T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
857 PM CDT SAT APR 25 2009

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN KAY COUNTY IN NORTHERN OKLAHOMA...

* UNTIL 945 PM CDT

* AT 858 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES
  NORTHEAST OF NARDIN...MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IN THE WARNING INCLUDE BLACKWELL LAKE...BRAMAN...CHILOCCO
  AND NARDIN.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 224 AND 235.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE
TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE
WALLS.

&&

LAT...LON 3699 9706 3676 9744 3693 9747 3700 9739
      3700 9706
TIME...MOT...LOC 0158Z 225DEG 28KT 3685 9742

$$

1 follow-up statement

000 
WWUS54 KOUN 260225
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
925 PM CDT SAT APR 25 2009

OKC071-260245-
/O.CON.KOUN.TO.W.0017.000000T0000Z-090426T0245Z/
KAY OK-
925 PM CDT SAT APR 25 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR NORTHERN
KAY COUNTY...

AT 923 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 2 MILES EAST OF 
BRAMAN...MOVING NORTHEAST AT 25 MPH.  ALTHOUGH THE SHEAR HAS WEAKENED
OVER THE PAST 15 MINUTES NEAR THE SURFACE...THE STORM IS STILL
CAPABLE OF PRODUCING A TORNADO AS IT MOVES NORTHEAST

* LOCATIONS IN THE WARNING INCLUDE BRAMAN AND CHILOCCO.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 231 AND 235.

LAT...LON 3683 9734 3696 9736 3700 9738 3700 9706
      3699 9706
TIME...MOT...LOC 0223Z 242DEG 22KT 3691 9725

$$

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 Apr 25, 6:22 PM CDT, 2 hours 35 minutes earlier.

Area forecast discussion, Apr 25, 6:22 PM CDT, 2 hours 35 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
622 PM CDT SAT APR 25 2009

.AVIATION...
STATIONARY FRONT FORECAST TO LIFT SLOWLY N THIS EVENING TO BRING
KGAG AND KWWR BACK INTO WARM SECTOR AND GUSTY S/SSE WINDS BY 09Z.
T-STORMS WILL REMAIN WIDESPREAD AND STRONG THIS EVENING BEFORE
DECREASING IN NUMBER/INTENSITY LATER TONIGHT. CIG/VSBY DROPPING
MOST AREAS LATER TONIGHT THEN IMPROVING DURING DAY SUNDAY. STORMS
LIKELY TO BECOME NUMEROUS AGAIN ALL AREAS SUNDAY... PERHAPS
INCREASING AS EARLY AS LATE TONIGHT. TO KEEP IT SIMPLE WE HAVE
INCLUDED VCTS IN MOST TAFS AND HAVE LIMITED TEMPO GROUPS TO THE
FIRST 4 HRS.

&&

.PREV DISCUSSION... /ISSUED 245 PM CDT SAT APR 25 2009/

DISCUSSION...
STATIONARY FRONT...EXTENDING FROM JUST SOUTH OF ANTELOPE HILLS OF
NORTHWEST ROGER MILLS COUNTY...NORTHEAST TO NEAR CHEROKEE...WILL
BE FOCUS FOR STRONG/SEVERE STORMS THROUGH THE EVENING. THIS FRONT
EXPECTED TO LIFT NORTHWARD THIS EVENING...SO LOCATIONS THAT ARE
NOW WELL NORTH OF FRONT ARE STILL UNDER SEVERE WEATHER THREAT
LATER THIS EVENING AS FRONT LIFTS NORTH. BASED ON SATELLITE/RADAR
- TRIPLE POINT TRYING TO SET UP NEAR CLARENDON TEXAS. INITIATION THIS
AFTERNOON WILL LIKELY BE IN SEVERAL SPOTS...FROM SOUTHERN KANSAS
DOWN THE FRONT...AND ALSO NEAR TRIPLE POINT. CURRENTLY...MOST OF
THE CONVERGENCE IS ALONG COLD FRONT...BUT EXPECTED TO INCREASE
ALONG DRY LINE OVER THE NEXT COUPLE OF HOURS.

AS FAR AS SUNDAY GOES...SOMEWHAT DEPENDENT ON WHAT HAPPENS TO
TONIGHT AND WHICH MODEL YOU PREFER. GFS LOOKS A LITTLE MORE
VOLATILE WHILE THE NAM APPEARS TO HAVE WEAKER CAP WITH STRONG
LARGE SCALE LIFT...WHICH WOULD LEAD TO A LOT OF STORMS AND
POSSIBLY LARGE THUNDERSTORMS CLUSTERS...AS OPPOSED TO MORE
DISCRETE STORMS. HOWEVER...LCLS WILL BE LOW AND LOWER/DEEP SHEAR
IMPRESSIVE ON BOTH MODELS...SO SEVERE WEATHER THREAT APPEARS
SIGNIFICANT.

WITH WESTERN TROUGH AND FRONTAL BOUNDARY MAKING PASSES AT
REGION... DAY TO DAY CHANCES FOR STRONG-SEVERE WEATHER WILL
CONTINUE THROUGH MUCH OF THE WEEK.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  67  76  63  72 /  40  60  70  60
HOBART OK         63  78  62  77 /  40  60  50  40
WICHITA FALLS TX  69  79  67  78 /  30  50  60  60
GAGE OK           53  78  56  70 /  40  60  40  20
PONCA CITY OK     63  76  64  68 /  60  60  80  50
DURANT OK         67  77  67  76 /  20  20  60  70

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

06/24/24

Hazardous weather outlook, Apr 25, 2:05 PM CDT, 6 hours 52 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE NORMAN OK
205 PM CDT SAT APR 25 2009

OKZ004>048-050>052-TXZ083>090-261000-
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-
205 PM CDT SAT APR 25 2009

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

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

THUNDERSTORM OUTLOOK...
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS... WITH A SLIGHT
RISK SURROUNDING THE MODERATE RISK.

LOCATION...
THE MODERATE RISK AREA IS TO THE WEST OF A LINE FROM BLACKWELL AND
KINGFISHER... TO LAWTON OKLAHOMA... TO VERNON AND GOODLETT TEXAS...
AND THEN EAST OF A BUFFALO TO ARNETT OKLAHOMA LINE. THERE IS A
SLIGHT RISK OF SEVERE THUNDERSTORMS SURROUNDING THE MODERATE RISK
AREA TO THE WEST OF A LINE FROM STILLWATER TO OKLAHOMA CITY TO
WICHITA FALLS AND ARCHER CITY TEXAS... AND INCLUDING FAR NORTHWEST
OKLAHOMA.

TIMING...
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE THROUGH 1 AM.

IMPACTS...
THE PRIMARY SEVERE WEATHER CONCERN WILL BE HAIL TO THE SIZE OF
BASEBALLS AND WIND GUSTS TO 75 MPH. TORNADOES WILL ALSO BE
POSSIBLE...PRIMARILY IN THE MODERATE RISK AREA.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS FROM THIS
AFTERNOON UNTIL EARLY SUNDAY MORNING.

DISCUSSION...
A COLD FRONT WILL SLOW DOWN AND STALL THIS AFTERNOON...FROM
WEST-CENTRAL OKLAHOMA...NORTHEASTWARD INTO NORTH-CENTRAL OKLAHOMA. A
DRY LINE WILL INTERSECT THE FRONT IN THE EAST-CENTRAL TEXAS
PANHANDLE AND EXTEND SOUTH ACROSS THE EASTERN TEXAS PANHANDLE.

BY LATE AFTERNOON... SURFACE HEATING COULD WEAKEN THE CAP
SUFFICIENTLY SUCH THAT THUNDERSTORMS MAY FORM ALONG THE DRY LINE AND
COLD FRONT. INSTABILITY AND SHEAR WILL BE MORE THAN SUFFICIENT FOR
THE DEVELOPMENT OF ORGANIZED SEVERE STORMS. SUPERCELLS ARE EXPECTED
ALONG BOTH BOUNDARIES...ALTHOUGH THE STRONGEST STORMS ARE EXPECTED
TO DEVELOP ALONG THE DRY LINE. LARGE HAIL WILL BE THE PRIMARY
THREAT...WITH VERY DAMAGING WIND GUSTS ALSO POSSIBLE. TORNADOES WILL
BE POSSIBLE AS WELL...ESPECIALLY NEAR AND EAST OF THE COLD FRONT AND
DRY LINE INTERSECTION. LOW-LEVEL SHEAR IS EXPECTED TO BECOME MOST
FAVORABLE FOR TORNADO DEVELOPMENT DURING THE EARLY EVENING.

LATE TONIGHT...THUNDERSTORMS ALONG THE COLD FRONT ARE EXPECTED TO
FORM A COMPLEX AND MOVE ACROSS KANSAS AND NORTHERN PORTIONS OF
OKLAHOMA. LARGE HAIL WILL CONTINUE TO BE A THREAT TONIGHT.

PROBABILITY TABLE...
VALID THROUGH 500 AM CDT SUNDAY APR 26.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
              NWS NORMAN COUNTY WARNING AREA...80 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...100 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THUNDERSTORM OUTLOOK...
A PROLONGED PERIOD OF ACTIVE WEATHER FOR THE SOUTHERN PLAINS...
INCLUDING THE POTENTIAL FOR SEVERE THUNDERSTORMS AND FLOODING
RAIN... WILL BEGIN THIS WEEKEND AND CONTINUE WELL INTO NEXT WEEK.
GULF MOISTURE RETURN INTO THE SOUTHERN PLAINS WILL CONTINUE THROUGH
EARLY NEXT WEEK. A DRY LINE WILL REMAIN IN THE AREA OF WEST TEXAS
THROUGH THE WEEKEND. A COLD FRONT IS FORECAST TO REMAIN IN OR NEAR
THE OKLAHOMA AND NORTH TEXAS AREA FROM SUNDAY THROUGH THE MIDDLE OF
NEXT WEEK. ALL OF THIS WILL TAKE PLACE BENEATH A STRONG AND
PERSISTENT SOUTHWESTERLY FLOW ALOFT... WHICH WILL FEATURE SEVERAL
EMBEDDED DISTURBANCES. MOISTURE... INSTABILITY... AND VERTICAL WIND
PROFILES WILL BE FAVORABLE FOR MULTIPLE ROUNDS OF STRONG TO SEVERE
THUNDERSTORMS FROM SUNDAY THROUGH WEDNESDAY.

OTHER HAZARDOUS WEATHER...
HEAVY RAIN COULD LEAD TO FLOODING BY NEXT WEEK... INCLUDING AN
INCREASING POTENTIAL FOR MAINSTEM RIVER FLOODING BY MIDWEEK.
WIDESPREAD RAINFALL TOTALS OF 2 TO 4 INCHES ARE LIKELY BETWEEN THIS
WEEKEND AND NEXT WEDNESDAY. LOCAL TOTALS GREATER THAN 5 INCHES WILL
BE POSSIBLE.

STRONG SOUTH WINDS ARE EXPECTED TO CONTINUE ON SUNDAY. SUSTAINED
WINDS NEAR 30 MPH WITH GUSTS IN EXCESS OF 40 MPH WILL BE POSSIBLE.

THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
SUNDAY.

TAYLOR/MAXWELL

In the hours before

Local storm report, Apr 25, 8:09 PM CDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
809 PM CDT SAT APR 25 2009

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

0808 PM     HAIL             DILL CITY               35.28N 99.13W
04/25/2009  E1.75 INCH       WASHITA            OK   AMATEUR RADIO

&&

SMITH

Local storm report, Apr 25, 8:10 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
810 PM CDT SAT APR 25 2009

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

0745 PM     HAIL             6 E RENFROW             36.92N 97.55W
04/25/2009  E0.88 INCH       GRANT              OK   PUBLIC

&&

FM

Local storm report, Apr 25, 8:24 PM CDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
824 PM CDT SAT APR 25 2009

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

0810 PM     HAIL             5 SW CAMARGO            35.97N 99.35W
04/25/2009  E1.75 INCH       DEWEY              OK   FIRE DEPT/RESCUE

&&

FM

Local storm report, Apr 25, 8:28 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
828 PM CDT SAT APR 25 2009

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

0815 PM     HAIL             2 S CAMARGO             35.99N 99.29W
04/25/2009  E1.00 INCH       DEWEY              OK   AMATEUR RADIO

0823 PM     HAIL             CORDELL                 35.30N 98.98W
04/25/2009  E1.00 INCH       WASHITA            OK   EMERGENCY MNGR

&&

FM

Local storm report, Apr 25, 8:36 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
836 PM CDT SAT APR 25 2009

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

0829 PM     HAIL             4 W POND CREEK          36.67N 97.87W
04/25/2009  E0.75 INCH       GRANT              OK   PUBLIC

&&

FM

Local storm report, Apr 25, 8:55 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
855 PM CDT SAT APR 25 2009

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

0854 PM     HAIL             5 S BURNS FLAT          35.28N 99.18W
04/25/2009  E1.00 INCH       WASHITA            OK   AMATEUR RADIO

&&

SMITH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 7:04 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey	56 min
Apr 25, 7:12 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	48 min
Apr 25, 7:16 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Roger Mills, Woodward	59 min
Apr 25, 7:31 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Washita	59 min
Apr 25, 7:44 PM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	61 min
Apr 25, 7:46 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant	59 min
Apr 25, 7:53 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey	67 min
Apr 25, 7:57 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	63 min
Apr 25, 8:18 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey, Major, Woodward	57 min
Apr 25, 8:26 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Washita	64 min
Apr 25, 8:46 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay	59 min
Apr 25, 8:53 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Custer, Washita	67 min
Apr 25, 9:07 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Dewey, Major	38 min
Apr 25, 9:13 PM CDT	Areal Flood Warning	OUN	Blaine, Dewey, Garfield, Grant, Kay, Major	6 hr
Apr 25, 9:16 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Major, Woods, Woodward	59 min
Apr 25, 9:18 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Custer, Washita	57 min
Apr 25, 9:42 PM CDT	Tornado Warning	OUN	Garfield	33 min
Apr 25, 9:45 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Major	60 min
Apr 25, 9:46 PM CDT	Severe Thunderstorm Warning	OUN	Kay	59 min
Apr 25, 9:50 PM CDT	Severe Thunderstorm Warning	OUN	Blaine	55 min
Apr 25, 10:13 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Dewey, Major, Woods	62 min
Apr 25, 10:13 PM CDT	Tornado Warning	OUN	Garfield, Grant	32 min
Apr 25, 10:37 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Garfield, Kingfisher, Major	53 min
Apr 25, 10:41 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Major	46 min
Apr 25, 10:42 PM CDT	Tornado Warning	OUN	Garfield, Grant	63 min
Apr 25, 11:09 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Major	66 min
Apr 25, 11:33 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Kingfisher	27 min
Apr 25, 11:36 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	54 min
Apr 25, 11:47 PM CDT	Tornado Warning	OUN	Grant	43 min
Apr 25, 11:58 PM CDT	Tornado Warning	OUN	Alfalfa, Major	47 min
Apr 26, 12:05 AM CDT	Severe Thunderstorm Warning	OUN	Kay	55 min
Apr 26, 12:12 AM CDT	Tornado Warning	OUN	Kay	48 min
Apr 26, 12:27 AM CDT	Severe Thunderstorm Warning	OUN	Garfield	63 min
Apr 26, 12:40 AM CDT	Tornado Warning	OUN	Alfalfa, Garfield, Grant, Major	65 min
Apr 26, 12:52 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	53 min
Apr 26, 12:57 AM CDT	Areal Flood Warning	OUN	Alfalfa, Garfield, Grant, Major, Woods	3 hr
Apr 26, 1:39 AM CDT	Tornado Warning	OUN	Garfield, Grant	66 min
Apr 26, 1:43 AM CDT	Severe Thunderstorm Warning	OUN	Grant	32 min
Apr 26, 1:54 AM CDT	River Flood Warning	OUN	Dewey, Major, Woodward	18 hr
Apr 26, 2:42 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	63 min
Apr 26, 3:04 AM CDT	Areal Flood Warning	OUN	Alfalfa, Blaine, Dewey, Garfield, Grant, Kay and 4 more	4 hr
Apr 26, 3:39 AM CDT	Severe Thunderstorm Warning	OUN	Kay	66 min
Apr 26, 6:38 AM CDT	Areal Flood Warning	OUN	Alfalfa, Blaine, Garfield, Grant, Kay, Kingfisher and 3 more	3 hr
Apr 26, 8:31 AM CDT	River Flood Warning	OUN	Grant, Kay, Noble	67 hr
Apr 26, 9:05 AM CDT	River Flood Warning	OUN	Blaine, Kingfisher, Major	29 hr
Apr 26, 9:05 AM CDT	River Flood Warning	OUN	Kingfisher, Logan	47 hr
Apr 26, 9:47 AM CDT	Areal Flood Warning	OUN	Alfalfa, Garfield, Grant, Kay, Major	6 hr
Apr 26, 10:02 AM CDT	Flood Watch	OUN	Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 11 more	30 hr
Apr 26, 11:26 AM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson	49 min
Apr 26, 11:28 AM CDT	Severe Thunderstorm Warning	OUN	Harper	47 min
Apr 26, 12:03 PM CDT	Wind Advisory	OUN	Alfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 31 more	13 hr
Apr 26, 12:15 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Kiowa, Washita	45 min
Apr 26, 12:36 PM CDT	Tornado Warning	OUN	Beckham, Greer, Kiowa, Washita	39 min
Apr 26, 12:38 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	67 min
Apr 26, 12:59 PM CDT	Severe Thunderstorm Warning	OUN	Harper	46 min
Apr 26, 1:12 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Washita	63 min
Apr 26, 1:28 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	62 min
Apr 26, 1:30 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Major, Woodward	22 min
Apr 26, 1:55 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	65 min
Apr 26, 2:09 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey, Major	66 min
Apr 26, 2:29 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	48 min
Apr 26, 2:46 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	59 min
Apr 26, 3:13 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major	62 min
Apr 26, 3:27 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	63 min
Apr 26, 3:38 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	67 min
Apr 26, 3:46 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	59 min
Apr 26, 3:50 PM CDT	Flash Flood Warning	OUN	Ellis, Harper, Woodward	4 hr
Apr 26, 4:04 PM CDT	Tornado Warning	OUN	Ellis, Roger Mills	56 min
Apr 26, 4:10 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	65 min
Apr 26, 4:34 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	56 min
Apr 26, 4:38 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	67 min
Apr 26, 4:42 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Harper, Woods, Woodward	63 min
Apr 26, 4:56 PM CDT	Tornado Warning	OUN	Dewey, Ellis, Woodward	64 min
Apr 26, 5:13 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Jackson, Kiowa, Tillman	62 min
Apr 26, 5:27 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa	63 min
Apr 26, 5:29 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson	61 min
Apr 26, 5:39 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	66 min
Apr 26, 5:42 PM CDT	Tornado Warning	OUN	Major, Woods, Woodward	54 min
Apr 26, 5:47 PM CDT	Tornado Warning	OUN	Dewey, Ellis, Roger Mills, Woodward	58 min
Apr 26, 6:06 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	54 min

Nearby

Tornado Warnings in Oklahoma, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.