Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 355, NWS Norman, OK

June 16, 20115 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 16, 2011, 3:33 AM CDT for 5 counties in Oklahoma. It was in force for 42 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: Jun 16, 2011, 3:33 AM CDT (08:33 UTC)
Expired: Jun 16, 2011, 4:15 AM CDT
In force: 42 min
Issued by: NWS Norman, OK
Area: Storm-based polygon

Counties Garfield County, OK, Kingfisher County, OK, Logan County, OK, Noble County, OK, Payne County, OK

The radar

The Vance AFB radar (KVNX), 88 km from the middle of the area, began a volume at 08:34 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

Lamont, OK (KLMN), launched 00:00Z, 8.6 hours before the alert went out and 55 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: 706 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 2516 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

113 
WUUS54 KOUN 160833
SVROUN
OKC047-073-083-103-119-160915-
/O.NEW.KOUN.SV.W.0355.110616T0833Z-110616T0915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
333 AM CDT THU JUN 16 2011

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN KINGFISHER COUNTY IN CENTRAL OKLAHOMA...
  NORTHWESTERN LOGAN COUNTY IN CENTRAL OKLAHOMA...
  WESTERN PAYNE COUNTY IN CENTRAL OKLAHOMA...
  SOUTHEASTERN GARFIELD COUNTY IN NORTHERN OKLAHOMA...
  SOUTHWESTERN NOBLE COUNTY IN NORTHERN OKLAHOMA...

* UNTIL 415 AM CDT

* AT 332 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED SEVERE   
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR COVINGTON TO NEAR
DOUGLAS TO MARSHALL AND BISON...MOVING SOUTHEAST AT 30 MPH.

HAZARDS IN THE WARNING INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 65 MPH...

* LOCATIONS IN THE WARNING INCLUDE HAYWARD...LAKE CARL BLACKWELL...
  LOVELL...MARSHALL...MULHALL AND ORLANDO.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 167 AND 181.

LAT...LON 3614 9712 3598 9737 3593 9776 3618 9793
      3621 9776 3630 9752
TIME...MOT...LOC 0832Z 306DEG 27KT 3624 9745 3614 9764
          3613 9793

$$

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 Jun 16, 12:50 AM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, Jun 16, 12:50 AM CDT, 2 hours 43 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1250 AM CDT THU JUN 16 2011

.AVIATION...
16/06Z TAFS...VFR CONDITIONS WITH INCREASING SOUTHERLY WINDS WILL
PREVAIL AT ALL TERMINALS. AREA OF TSRA NEAR AND NORTHEAST OF KWWR
MAY LINGER WELL INTO THE NIGHT AND WILL GO AHEAD AND INCLUDE A TEMPO
GROUP AT KPNC FROM 08-10Z. DO NOT EXPECT ACTIVITY TO MAKE IT TOWARD
KOKC/KOUN/KCSM...BUT WILL MONITOR AND AMEND IF NEEDED.

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...FIRE WEATHER WATCH FROM THURSDAY AFTERNOON THROUGH THURSDAY
     EVENING FOR OKZ004-005-009-010-014>016-021-022-033>038.

TX...FIRE WEATHER WATCH FROM THURSDAY AFTERNOON THROUGH THURSDAY
     EVENING FOR TXZ083>089.

&&

Hazardous weather outlook, Jun 16, 12:05 AM CDT, 3 hours 28 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATE
NATIONAL WEATHER SERVICE NORMAN OK
1205 AM CDT THU JUN 16 2011

OKZ004>048-050>052-TXZ083>090-161000-
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-
1205 AM CDT THU JUN 16 2011

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

.DAY ONE...OVERNIGHT...

THUNDERSTORM OUTLOOK...
ISOLATED SEVERE STORMS WILL BE SEEN OVER NORTHWEST OKLAHOMA. THERE
IS A SMALL CHANCE THAT THE STORMS WILL AFFECT WEST-CENTRAL AND
CENTRAL OKLAHOMA LATE TONIGHT.

DISCUSSION...
ISOLATED SEVERE STORMS THAT INITIATED OVER EASTERN COLORADO AND
WESTERN KANSAS LAST EVENING ARE MAINTAINING STRENGTH OR EVEN
BECOMING MORE INTENSE ACROSS NORTHWEST OKLAHOMA. DAMAGING WIND AND
HAIL WILL BE THE MAIN THREATS...ALONG WITH FREQUENT LIGHTNING. AREAS
FROM AROUND WOODWARD AND ALVA...DOWN TOWARD CHEYENNE...CAMARGO...
FAIRVIEW...ENID...AND WATONGA COULD SEE STRONG OR SEVERE STORMS
OVERNIGHT IF THE STORMS MAINTAIN STRENGTH. THE STORMS ARE MOVING
INTO A STRONGLY CAPPED ENVIRONMENT...BUT ELEVATED INSTABILITY AND
MODERATE WIND SHEAR WILL KEEP THE THREAT GOING OVERNIGHT.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT THURSDAY JUN 16.
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...
NONE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

THUNDERSTORM OUTLOOK...
WITH VERY HOT TEMPERATURES AND A DIFFUSE DRYLINE NEAR WESTERN AND
NORTHERN OKLAHOMA FROM THURSDAY THROUGH THE WEEKEND...AN ISOLATED
THUNDERSTORM OR TWO MAY OCCUR DURING THE LATE AFTERNOON HOURS NEAR
THE DRYLINE. IF ANY STORM CAN DEVELOP...DAMAGING WIND GUSTS WILL BE
POSSIBLE. MORE ORGANIZED THUNDERSTORM ACTIVITY IS EXPECTED NEXT
MONDAY AND TUESDAY...AS ANOTHER COLD FRONT MOVES INTO THE REGION.
SOME OF THESE STORMS...IF THEY OCCUR...WILL LIKELY BE SEVERE.

OTHER HAZARDOUS WEATHER...
FIRES WILL REMAIN A CONCERN IN THOSE AREAS HARDEST HIT BY LONG TERM
DROUGHT...PRIMARILY IN WESTERN OKLAHOMA AND WESTERN NORTH TEXAS.
WINDS WILL BE ESPECIALLY GUSTY THURSDAY THROUGH THE WEEKEND.

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

In the hours before

Special weather statement, Jun 16, 12:31 AM CDT, 3 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
1231 AM CDT THU JUN 16 2011

OKZ005-160600-
WOODS OK-
1231 AM CDT THU JUN 16 2011

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR WOODS COUNTY.

AT 1229 AM CDT...RADAR INDICATED SEVERAL THUNDERSTORMS EXTENDING
FROM NEAR FREEDOM TO 5 MILES NORTH OF CAMP HOUSTON TO WEST OF
COLDWATER...KANSAS.  THE STORMS WERE MOVING SOUTHEAST AT 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH...
WIND GUSTS TO 40 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...

SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.

LAT...LON 3699 9862 3662 9894 3699 9939 3700 9911

Local storm report, Jun 16, 12:38 AM CDT, 2 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
1238 AM CDT THU JUN 16 2011

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

1225 AM     HAIL             2 SW TANGIER            36.40N 99.56W
06/16/2011  E1.25 INCH       WOODWARD           OK   TRAINED SPOTTER

            A TRAINED SPOTTER AND KWTV-9 REPORTED UP TO HALF DOLLAR
            SIZE HAIL ON HIGHWAY 412. A LARGE TREE LIMB WAS ALSO
            BLOWN DOWN BLOCKING THE WEST BOUND LANE OF HIGHWAY 412.

1230 AM     HAIL             1 NE TANGIER            36.43N 99.52W
06/16/2011  E1.00 INCH       WOODWARD           OK   TRAINED SPOTTER

&&

NORMAN NWS

Special weather statement, Jun 16, 1:54 AM CDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
154 AM CDT THU JUN 16 2011

OKZ010-160730-
WOODWARD OK-
154 AM CDT THU JUN 16 2011

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR WOODWARD COUNTY.

AT 154 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 11 MILES NORTHWEST
OF MOORELAND...MOVING EAST AT 25 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 40 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...

LAT...LON 3661 9900 3651 9904 3640 9923 3652 9941
      3660 9934 3660 9929 3665 9929 3669 9927

Local storm report, Jun 16, 2:54 AM CDT, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
254 AM CDT THU JUN 16 2011

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

0230 AM     TSTM WND GST     KREMLIN                 36.55N 97.83W
06/16/2011  E70 MPH          GARFIELD           OK   EMERGENCY MNGR

            RESULTED IN POWER OUTAGES IN KREMLIN.

&&

11

Special weather statement, Jun 16, 3:01 AM CDT, 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
301 AM CDT THU JUN 16 2011

OKZ011-012-160815-
GARFIELD OK-MAJOR OK-
301 AM CDT THU JUN 16 2011

...SIGNIFICANT WEATHER ADVISORY...

THIS SIGNIFICANT WEATHER ADVISORY IS FOR GARFIELD AND MAJOR COUNTIES.

AT 301 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 5 MILES NORTH OF
ISABELLA...MOVING SOUTHEAST AT 30 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF DIMES...
WIND GUSTS TO 45 MPH...
FREQUENT CLOUD TO GROUND LIGHTNING...

LAT...LON 3641 9792 3617 9794 3617 9847 3645 9836

Local storm report, Jun 16, 3:32 AM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
332 AM CDT THU JUN 16 2011

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

0305 AM     TSTM WND GST     1 SW MEDFORD            36.79N 97.75W
06/16/2011  M65.00 MPH       GRANT              OK   MESONET

0325 AM     TSTM WND GST     7 SSE RED ROCK          36.37N 97.13W
06/16/2011  M59.00 MPH       NOBLE              OK   MESONET

&&

11

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 10:24 PM CDT	Special Weather Statement	OUN	Harper	36 min
Jun 15, 10:33 PM CDT	Severe Thunderstorm Warning	OUN	Harper	57 min
Jun 15, 11:18 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Harper, Woods, Woodward	57 min
Jun 16, 12:06 AM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	54 min
Jun 16, 12:31 AM CDT	Special Weather Statement	OUN	Woods	29 min
Jun 16, 12:43 AM CDT	Severe Thunderstorm Warning	OUN	Woods	62 min
Jun 16, 1:33 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	57 min
Jun 16, 1:42 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods	63 min
Jun 16, 1:54 AM CDT	Special Weather Statement	OUN	Woodward	36 min
Jun 16, 2:22 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	38 min
Jun 16, 2:27 AM CDT	Severe Thunderstorm Warning	OUN	Major	33 min
Jun 16, 2:55 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	65 min
Jun 16, 3:01 AM CDT	Special Weather Statement	OUN	Major	14 min
Jun 16, 3:44 AM CDT	Red Flag Warning	OUN	Beckham, Ellis, Greer, Harmon, Harper, Jackson and 2 more	16 hr
Jun 16, 3:48 AM CDT	Severe Thunderstorm Warning	OUN	Noble, Payne	57 min
Jun 16, 3:59 AM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Logan, Payne	76 min
Jun 16, 4:28 AM CDT	Special Weather Statement	OUN	Lincoln, Oklahoma	47 min
Jun 16, 5:01 AM CDT	Special Weather Statement	OUN	Pottawatomie	44 min
Jun 16, 5:16 AM CDT	Special Weather Statement	OUN	Kingfisher, Logan	44 min
Jun 16, 6:04 AM CDT	Special Weather Statement	OUN	Lincoln	26 min
Jun 16, 6:52 AM CDT	Special Weather Statement	OUN	Logan	38 min
Jun 16, 7:21 AM CDT	Special Weather Statement	OUN	Grady	39 min
Jun 16, 8:12 AM CDT	Special Weather Statement	OUN	Caddo	18 min
Jun 16, 10:05 AM CDT	Special Weather Statement	OUN	Kay	25 min
Jun 16, 10:14 AM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	46 min
Jun 16, 2:24 PM CDT	Special Weather Statement	OUN	Kay	21 min
Jun 16, 2:50 PM CDT	Special Weather Statement	OUN	Kay	25 min
Jun 16, 3:54 PM CDT	Wind Advisory	OUN	Alfalfa, Beckham, Blaine, Caddo, Canadian, Cleveland and 24 more	13 hr
Jun 16, 5:27 PM CDT	Special Weather Statement	OUN	Beckham	18 min
Jun 16, 5:46 PM CDT	Special Weather Statement	OUN	Harmon	29 min
Jun 16, 6:09 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson	66 min
Jun 16, 6:21 PM CDT	Special Weather Statement	OUN	Beckham	24 min
Jun 16, 6:41 PM CDT	Special Weather Statement	OUN	Beckham	34 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2011 Every severe thunderstorm warning in 2011

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.