Alert archive / Arkansas / Special Weather Statements in 2011
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Nov 20, 2011, 7:09 PM CST for Benton County, Arkansas. It was in force for 36 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
- Nov 20, 2011, 7:09 PM CST (01:09 UTC)
- Expired
- Nov 20, 2011, 7:45 PM CST
- In force
- 36 min
- Issued by
- NWS Tulsa, OK
County Benton County, AR
The radar
The Tulsa radar (KINX), 106 km from the middle of the area, began a volume at 01:11 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
Springfield, MO (KSGF), launched 00:00Z, 1.2 hours before the alert went out and 78 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 431 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 418 m²/s²
- 0-3 km storm-relative helicity
- 434 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Nov 20, 5:26 PM CST, 1 hour 43 minutes earlier.
Area forecast discussion, Nov 20, 5:26 PM CST, 1 hour 43 minutes before
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</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>Hazardous weather outlook, Nov 20, 4:49 PM CST, 2 hours 20 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 449 PM CST SUN NOV 20 2011 ARZ001-002-010-011-019-020-029-OKZ049-053>076-211100- 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- 449 PM CST SUN NOV 20 2011 ...EXCESSIVE RAINFALL MONDAY NIGHT...AND POTENTIAL FOR SEVERE STORMS... THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...TODAY AND TONIGHT. SEVERE THUNDERSTORM. RISK...LIMITED. AREA...FAR SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS. ONSET...THIS EVENING. HEAVY RAIN. RISK...LIMITED. AREA...SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS. ONSET...LATE TONIGHT. DISCUSSION... A SHARP COLD FRONT WILL REMAIN STALLED ACROSS NORTH TEXAS INTO EXTREME SOUTHEAST OKLAHOMA OVERNIGHT. SHOWERS AND THUNDERSTORMS WILL DEVELOP MAINLY TO THE SOUTHEAST OF INTERSTATE 44 THIS EVENING AS WARM AND MOIST GULF AIR INTERACTS WITH THIS BOUNDARY. WHILE THE MAIN THREAT OF SURFACE BASED STORMS SHOULD REMAIN TO THE SOUTH AND EAST...STRONG TO SEVERE ELEVATED THUNDERSTORMS WILL BE POSSIBLE LATER TONIGHT FROM SOUTHEAST OKLAHOMA THROUGH WEST CENTRAL ARKANSAS...WITH LARGE HAIL THE MAIN THREAT. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE WITH THESE STORMS. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... LOCAL SPOTTER ACTIVATION MAY BE NEEDED. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. MONDAY...SEVERE THUNDERSTORM POTENTIAL...HIGH WIND POTENTIAL...HEAVY RAIN POTENTIAL. TUESDAY THROUGH WEDNESDAY...NO HAZARDS. THURSDAY THROUGH SATURDAY...THUNDERSTORM POTENTIAL. EXTENDED DISCUSSION... EASTERN OKLAHOMA WEST CENTRAL AND NORTHWEST ARKANSAS WILL BE IN FOR A PERIOD OF HEAVY RAIN AND POTENTIAL SEVERE STORMS MONDAY INTO TUESDAY. A POTENT UPPER SYSTEM MOVING ACROSS THE SOUTHWEST FROM THE FOUR CORNERS AREA WILL TEAM WITH THE FRONTAL BOUNDARY IN NORTH TEXAS AND ARKANSAS TO PRODUCE STRONG TO SEVERE STORMS AND EXCESSIVE RAIN. THE MOST ACTIVE WEATHER PERIOD WILL BE FROM MID OR LATE AFTERNOON MONDAY THROUGH MONDAY NIGHT. CURRENT RAINFALL FORECASTS ARE FOR WIDESPREAD 1 TO 3 INCH TOTALS BY EARLY TUESDAY. ISOLATED AMOUNTS OF 5 TO 8 INCHES OF RAIN WILL BE POSSIBLE...MOST LIKELY FROM EAST CENTRAL OKLAHOMA INTO NORTHWEST ARKANSAS. AMOUNTS OF THAT MAGNITUDE WOULD RESULT IN DANGEROUS FLASH FLOODS AND FLOODING OF STREAMS AND SOME MAINSTREAM RIVERS. THE FORECAST STRENGTH OF THE STORM SYSTEM WILL ALSO CREATE CONDITIONS FAVORABLE FOR SEVERE WEATHER...ESPECIALLY ALONG AND SOUTH OF THE FRONTAL BOUNDARY. LARGE HAIL WILL BE THE MAIN THREAT WITH ELEVATED STORMS NORTH OF THE BOUNDARY. THE FRONT MAY LIFT NORTH MONDAY EVENING INTO PARTS OF SOUTHEAST OKLAHOMA...AND IF SO THIS WILL BRING A RISK OF MORE SIGNIFICANT SEVERE WEATHER OVER PARTS OF SOUTHEAST OKLAHOMA LATE MONDAY. DRY COOL WEATHER WILL PREVAIL WEDNESDAY INTO THANKSGIVING DAY. STRONG SOUTHERLY WINDS RETURN BY LATE WEEK ALONG WITH INCREASING CHANCES FOR THUNDERSTORMS...ESPECIALLY BY FRIDAY. EMERGENCY MANAGEMENT PLANNING STATEMENT... NECESSARY RESPONSES FOR BOTH SEVERE WEATHER AND FLOODING IMPACTS MAY BE REQUIRED MONDAY THROUGH TUESDAY. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.
In the hours before
Special weather statement, Nov 20, 6:26 PM CST, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
626 PM CST SUN NOV 20 2011
OKZ064>066-210115-
CREEK OK-OKFUSKEE OK-OKMULGEE OK-
626 PM CST SUN NOV 20 2011
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 715 PM CST
FOR THE FOLLOWING COUNTIES...
IN NORTHEAST OKLAHOMA
SOUTHERN CREEK AND NORTHERN OKMULGEE
IN EAST CENTRAL OKLAHOMA
NORTHERN OKFUSKEE
AT 627 PM CST...A STRONG THUNDERSTORM WAS LOCATED 3 MILES NORTH OF
OKFUSKEE...MOVING NORTHEAST AT 40 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...OKMULGEE
STATE PARK...BEGGS...OKMULGEE...PRESTON AND BALD HILL.
THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL.
LAT...LON 3586 9602 3585 9577 3564 9577 3556 9622
3574 9626
TIME...MOT...LOC 0027Z 245DEG 42KT 3566 9618Special weather statement, Nov 20, 7:09 PM CST, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
709 PM CST SUN NOV 20 2011
ARZ001-210145-
BENTON AR-
709 PM CST SUN NOV 20 2011
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 745 PM CST
FOR THE FOLLOWING COUNTY...
IN NORTHWEST ARKANSAS
NORTHERN BENTON
AT 710 PM CST...A STRONG THUNDERSTORM WAS LOCATED 4 MILES SOUTHWEST
OF GRAVETTE...MOVING NORTHEAST AT 50 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...HIWASSE...
BELLA VISTA...PEA RIDGE AND GATEWAY.
THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL.
LAT...LON 3627 9458 3647 9461 3650 9445 3650 9387
TIME...MOT...LOC 0110Z 242DEG 45KT 3641 9443The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 6:26 PM CST | Special Weather Statement | TSA | Okmulgee | 49 min |
| Nov 20, 7:43 PM CST | Special Weather Statement | TSA | Creek | 47 min |
| Nov 20, 8:12 PM CST | Special Weather Statement | TSA | Tulsa | 48 min |
| Nov 20, 8:43 PM CST | Special Weather Statement | TSA | Tulsa | 47 min |
| Nov 20, 9:31 PM CST | Special Weather Statement | TSA | Pushmataha | 44 min |
| Nov 20, 10:25 PM CST | Severe Thunderstorm Warning | TSA | Latimer | 23 min |
| Nov 21, 1:50 AM CST | Areal Flood Advisory | TSA | LeFlore, Pushmataha | 115 min |
| Nov 21, 2:27 AM CST | Flash Flood Warning | TSA | LeFlore, Pushmataha | 6 hr |
| Nov 20, 9:39 PM CST | Special Weather Statement | TSA | Crawford | 36 min |
| Nov 20, 10:10 PM CST | Special Weather Statement | TSA | Crawford | 35 min |
| Nov 21, 12:02 AM CST | Special Weather Statement | TSA | Carroll | 13 min |
Nearby
Special Weather Statements in Arkansas, 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.