Alert archive / Oklahoma / Special Weather Statements in 2011
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Jun 12, 2011, 2:30 AM CDT for Nowata County, Washington County, Oklahoma. It was in force for 60 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 12, 2011, 2:30 AM CDT (07:30 UTC)
- Expired
- Jun 12, 2011, 3:30 AM CDT
- In force
- 60 min
- Issued by
- NWS Tulsa, OK
Counties Nowata County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 61 km from the middle of the area, began a volume at 07:33 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.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 7.5 hours before the alert went out and 186 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.
- Mixed-layer CAPE
- 2801 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1479 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 140 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 11.5
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Jun 12, 2:19 AM CDT, 11 minutes earlier.
Area forecast discussion, Jun 12, 2:19 AM CDT, 11 minutes before
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</html>Hazardous weather outlook, Jun 12, 12:31 AM CDT, 1 hour 59 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 1231 AM CDT SUN JUN 12 2011 ARZ001-002-010-011-019-020-029-OKZ049-053>076-121000- 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- 1231 AM CDT SUN JUN 12 2011 ...STRONG TO SEVERE THUNDERSTORMS TO AFFECT NORTHEAST OKLAHOMA OVERNIGHT... THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...TODAY AND TONIGHT. SEVERE THUNDERSTORM. RISK...SIGNIFICANT. AREA...NORTHEAST OKLAOMA. ONSET...AFTER 1 AM. DISCUSSION... A THUNDESTORM COMPLEX WILL MOVE INTO NORTHEAST OKLAHOMA AFTER 1 AM THIS MORNING. THIS COMPLEX WILL MOVE TO THE EAST- SOUTHEAST ACROSS THE REGION OVERNIGHT. THE THUNDERSTORMS WILL HAVE THE CAPABILITY OF PRODUCING WIND GUSTS OF AROUND 60 MPH AND LARGE HAIL. THE GREATEST RISK FOR SEVERE THUNDERSTORMS WILL BE NORTH OF INTERSTATE 40. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... ACTIVATION OF THE REGIONAL SPOTTER NETWORK EXPECTED. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. SUNDAY...THUNDERSTORM POTENTIAL. MONDAY...HIGH WIND POTENTIAL. TUESDAY...THUNDERSTORM POTENTIAL. WEDNESDAY...THUNDERSTORM POTENTIAL. THURSDAY...NO HAZARDS. FRIDAY...THUNDERSTORM POTENTIAL...DANGEROUS HEAT POTENTIAL. EXTENDED DISCUSSION... THUNDERSTORMS FROM THE AFOREMENTIONED COMPLEX MAY BE ONGOING TOMORROW MORNING ACROSS PORTIONS OF NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS. SMALL THUNDERSTORM CHANCES WILL BE BACK IN THE FORECAST TUESDAY NIGHT AND INTO WEDNESDAY...AS A WEAK FRONT MOVES INTO THE AREA. UPPER LEVEL RIDGING WILL AGAIN BUILD INTO THE AREA LATE IN THE WEEK...WHICH WILL KEEP ABOVE NORMAL TEMPERATURES AND HUMID CONDITIONS IN THE FORECAST. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.
In the hours before
Local storm report, Jun 11, 8:33 PM CDT, 5 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
833 PM CDT SAT JUN 11 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0831 PM HAIL TULSA 36.13N 95.92W
06/11/2011 E0.75 INCH TULSA OK BROADCAST MEDIA
REPORTED AT 31ST AND UTICA
&&
KAHSpecial weather statement, Jun 12, 2:30 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:22 PM CDT | Special Weather Statement | TSA | Tulsa | 38 min |
| Jun 12, 12:42 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 91 min |
| Jun 12, 1:20 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee, Tulsa, Washington | 85 min |
| Jun 12, 3:14 AM CDT | Special Weather Statement | TSA | Rogers, Tulsa | 61 min |
| Jun 12, 3:15 AM CDT | Special Weather Statement | TSA | Craig, Nowata | 60 min |
Nearby
Special Weather Statements in Oklahoma, 2011Every special weather statement 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.