Alert archive / Arkansas / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 100, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Apr 10, 2013, 1:59 PM CDT for Bowie County, Texas; 5 counties in Arkansas. It was in force for 61 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
- Apr 10, 2013, 1:59 PM CDT (18:59 UTC)
- Expired
- Apr 10, 2013, 3:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
Counties Hempstead County, AR, Howard County, AR, Little River County, AR, Miller County, AR, Sevier County, AR, Bowie County, TX
The radar
The Shreveport radar (KSHV), 142 km from the middle of the area, began a volume at 18:59 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 10, 1:20 PM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 7.0 hours before the alert went out and 140 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
- 1882 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 502 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 281 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 3.5
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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 10, 1:30 PM CDT, 29 minutes earlier.
Area forecast discussion, Apr 10, 1:30 PM CDT, 29 minutes before
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</html>Hazardous weather outlook, Apr 10, 11:25 AM CDT, 2 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1125 AM CDT WED APR 10 2013 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-111200- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN- UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA- NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE- FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG- HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA- SAN AUGUSTINE-SABINE TX- 1125 AM CDT WED APR 10 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL AND SOUTHWEST ARKANSAS...NORTH CENTRAL AND NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA AS WELL AS EAST AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... A LINE OF SHOWERS AND THUNDERSTORMS...WILL BEGIN TO DEVELOP ALONG A STRONG...BUT SLOW MOVING COLD FRONT...CURRENTLY ORIENTED ALONG A TYLER TO MOUNT PLEASANT TEXAS TO DEQUEEN ARKANSAS LINE. THUNDERSTORM ACTIVITY WILL BEGIN TO INITIATE DURING THE AFTERNOON HOURS ACROSS FAR EAST AND NORTHEAST TEXAS. DURING THE EVENING HOURS THE ACTIVITY SHOULD PUSH EAST THROUGH NORTHWEST LOUISIANA AND SOUTHWEST ARKANSAS. BY LATE EVENING TO MIDNIGHT...EXPECT THE LINE OF SHOWERS AND THUNDERSTORMS TO BE MOVING ACROSS SOUTH CENTRAL ARKANSAS AND NORTH CENTRAL LOUISIANA...POSSIBLY CLEARING EL DORADO ARKANSAS AND MONROE LOUISIANA AROUND MIDNIGHT. THE GREATEST INSTABILITY APPEARS TO BE ACROSS NORTHERN LOUISIANA AND SOUTH CENTRAL ARKANSAS...ALLOWING THIS AREA TO SEE BETTER CHANCES FOR SEVERE WEATHER. THE PRIMARY SEVERE WEATHER THREAT FROM THIS AFTERNOON THROUGH THE EVENING HOURS APPEARS TO BE DAMAGING STRAIGHT-LINE WINDS. ISOLATED TORNADOES AND HAIL WILL ALSO BE A CONCERN...WITH LOCALLY HEAVY RAINFALL POSSIBLE AS WELL. THE HEAVIEST RAINFALL TOTALS WILL LIKELY BE ACROSS NORTHERN LOUISIANA AND SOUTHERN ARKANSAS...WHERE 2 TO 3 INCHES WILL BE POSSIBLE. IN ADDITION...AS THE COLD FRONT MOVES THROUGH THE AREA FROM WEST TO EAST...SOME ELEVATED THUNDERSTORM ACTIVITY MAY BE POSSIBLE IN THE COOLER AIR MASS. WITH THIS ACTIVITY...SOME HAIL MAY BE POSSIBLE THROUGH THE EVENING HOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY... MUCH COLDER AND BREEZY CONDITIONS ARE EXPECTED ON THURSDAY...HOWEVER...NO HAZARDOUS WEATHER IS EXPECTED THROUGH THE PERIOD. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGEMENT PERSONNEL...AMATEUR RADIO OPERATORS...AND STORM SPOTTERS MAY BE NEEDED DURING THE AFTERNOON AND EVENING HOURS TODAY AND TONIGHT...ESPECIALLY ACROSS NORTHERN LOUISIANA AND SOUTHERN ARKANSAS. 20
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 3:23 PM CDT | Severe Thunderstorm Warning | SHV | Cass, Marion | 52 min |
| Apr 10, 6:52 PM CDT | Severe Thunderstorm Warning | SHV | Sabine | 53 min |
| Apr 10, 5:26 PM CDT | Areal Flood Advisory | SHV | Bossier, Caddo, De Soto | 2 hr |
| Apr 10, 6:04 PM CDT | Severe Thunderstorm Warning | SHV | Claiborne, Union | 41 min |
| Apr 10, 6:31 PM CDT | Severe Thunderstorm Warning | SHV | Columbia, Nevada, Union | 44 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2013Severe Thunderstorm Warnings in Texas, 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.