Alert archive / Arkansas / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 257, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Sep 1, 2013, 3:16 PM CDT for Washington County, Arkansas. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 1, 2013, 3:16 PM CDT (20:16 UTC)
- Expired
- Sep 1, 2013, 4:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
County Washington County, AR
The radar
The Western Arkansas radar (KSRX), 78 km from the middle of the area, began a volume at 20:17 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 12:00Z, 8.3 hours before the alert went out and 109 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
- 440 J/kg
- Mixed-layer CIN
- -192 J/kg
- Mixed-layer LCL
- 2217 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 12:32 PM CDT, 2 hours 44 minutes earlier.
Area forecast discussion, Sep 1, 12:32 PM CDT, 2 hours 44 minutes before
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</html>Hazardous weather outlook, Sep 1, 1:11 PM CDT, 2 hours 5 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 111 PM CDT SUN SEP 1 2013 ARZ001-002-010-011-019-020-029-OKZ049-053>076-021000- 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- 110 PM CDT SUN SEP 1 2013 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...THIS AFTERNOON AND TONIGHT. SEVERE THUNDERSTORM. RISK...LIMITED. AREA...SOUTHEAST OKLAHOMA AND WESTERN ARKANSAS. ONSET...LATE AFTERNOON. DANGEROUS HEAT. RISK...ELEVATED. AREA...SOUTH OF INTERSTATE 44. ONSET...ONGOING. DISCUSSION... A COLD FRONT...CURRENTLY NEAR INTERSTATE 44...WILL CONTINUE SLOWLY SOUTHWARD THIS AFTERNOON AND EVENING. SCATTERED THUNDERSTORMS ARE LIKELY TO DEVELOP ALONG AND NORTH OF THE COLD FRONT. ANY STORMS WHICH FORM NEAR THE BOUNDARY WILL HAVE POTENTIAL FOR STRONG OUTFLOW WINDS...WITH A FEW STORMS POSSIBLY BECOMING SEVERE. ADDITIONALLY...HOT AND HUMID CONDITIONS WILL CONTINUE THIS AFTERNOON SOUTH OF THE COLD FRONT...WITH HEAT INDEX VALUES AROUND 105 DEGREES EXPECTED. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... LOCAL SPOTTER ACTIVATION MAY BE NEEDED THROUGH MID EVENING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. MONDAY...THUNDERSTORM POTENTIAL. TUESDAY THROUGH SATURDAY...NO HAZARDS. EXTENDED DISCUSSION... A FEW THUNDERSTORMS MAY BE ONGOING EARLY MONDAY ACROSS SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS...HOWEVER CHANCES WILL DIMINISH THROUGH THE DAY AS THE COLD FRONT CONTINUES TO PUSH SOUTH OF THE AREA. DRY AND COOLER WEATHER WILL PREVAIL THROUGH MID WEEK...WITH A SLOW WARM UP LIKELY BY LATE WEEK. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 3:55 PM CDT | Special Weather Statement | TSA | Pushmataha | 35 min |
| Sep 1, 4:04 PM CDT | Special Weather Statement | TSA | Pushmataha | 26 min |
| Sep 1, 4:47 PM CDT | Special Weather Statement | TSA | Latimer | 28 min |
| Sep 1, 5:10 PM CDT | Special Weather Statement | TSA | Latimer | 35 min |
| Sep 1, 5:20 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 40 min |
| Sep 1, 5:37 PM CDT | Special Weather Statement | TSA | LeFlore | 23 min |
| Sep 1, 5:45 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 45 min |
| Sep 1, 5:47 PM CDT | Special Weather Statement | TSA | LeFlore | 28 min |
| Sep 1, 6:44 PM CDT | Special Weather Statement | TSA | LeFlore | 31 min |
| Sep 1, 6:48 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 42 min |
| Sep 1, 3:42 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Franklin, Washington | 63 min |
| Sep 1, 4:27 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 48 min |
| Sep 1, 5:00 PM CDT | Special Weather Statement | TSA | Crawford | 30 min |
| Sep 1, 5:06 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Sebastian | 39 min |
| Sep 1, 5:25 PM CDT | Special Weather Statement | TSA | Sebastian | 35 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2013Every severe thunderstorm warning in 2013
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.