Alert archive / Arkansas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 124, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 7, 2007, 6:00 PM CDT for Hempstead 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
- May 7, 2007, 6:00 PM CDT (23:00 UTC)
- Expired
- May 7, 2007, 6:44 PM CDT
- In force
- 44 min
- Issued by
- NWS Shreveport, LA
- Area
- Counties, with a storm outline in the text
County Hempstead County, AR
The radar
The Shreveport radar (KSHV), 144 km from the middle of the area, began a volume at 23:01 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
Fort Worth, TX (KFWD), launched 12:00Z, 11.0 hours before the alert went out and 351 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
- 1891 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 749 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.6
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 May 7, 3:31 PM CDT, 2 hours 29 minutes earlier.
Area forecast discussion, May 7, 3:31 PM CDT, 2 hours 29 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 331 PM CDT MON MAY 7 2007 .DISCUSSION... STRONG CLOSED LOW OFF THE CAROLINA COAST. DEWPOINTS IN THE 30S NOTED ALL DAY OVER AL/GA WITH THE NE WINDS THERE. THIS DRY AIR WILL PUSH EASTWARD GRADUALLY INTO MS...WHERE MERIDIAN DEWPOINT HAS DROPPED TO THE UPPER 40S TODAY. NOT EXPECTING THIS DRY AIR TO BE ABLE TO MAKE PROGRESS WEST OF MS RIVER THOUGH. OUR DEWPOINTS MAY DROP A TAD FROM THE NEAR 70 READINGS...BUT STILL REMAINING IN THE 60S AT LEAST FOR THE TIME BEING. THE NW ARKLATEX GOT A LITTLE UNDER THE RAIN COLUMN TODAY. THE UPPER LOW OVER THE SOUTHERN ROCKIES...NOT TO MENTION THE INTERESTING CLOSED LOW OFF THE CAROLINA COAST...CONTINUE TO HELP A NARROW RIDGE OF HIGH PRESSURE TO REMAIN OVER OUR CWA. THE MAIN AXIS OF CONVECTION WILL CONTINUE TO RUN NORTH AND WEST OF OUR AREA...WITH SPOTTY CONVECTION POSSIBLE OVER OUR CWA. MODELS SIGNAL OVERNIGHT CONVECTIVE BAND WILL RETURN TO N TX AND CENTRAL OK... THUS EXPECTING THE CONVECTIVE BANDS PRESENTLY OVER OUR NW CORNER TO END BY EVENING. LITTLE IN THE WAY OF CHANGE TO THIS OVERALL FORECAST FOR A FEW DAYS. THE CLOSED LOW WILL GRADUALLY COME INTO THE ARKLATEX LATE WEEK...LINGERING ENOUGH TO PROVIDE A SCATTERED CONVECTIVE WEEKEND WITH SLIGHTLY COOLER TEMPS. /17/ && .AVIATION... THERE MAY BE A SHOWER OR THUNDERSTORM IN THE VICINITY OF TYR...GGG...TXK...AND SHV THIS AFTERNOON INTO THE EVENING HOURS. LOWER VISIBILITIES AND CEILINGS ALONG WITH BRIEF GUSTY WINDS WILL ACCOMPANY THESE STORMS. IN THE MORNING...EXPECT PATCHY FOG AROUND DAYBREAK AND THE CHANCE FOR MORE SHOWERS AND THUNDERSTORMS LATER ON IN THE AFTERNOON...TOMORROW. /23/ && .PRELIMINARY POINT TEMPS/POPS... SHV 69 86 66 86 / 10 20 10 20 MLU 66 85 63 86 / 10 20 0 20 DEQ 66 83 64 81 / 20 20 20 30 TXK 68 84 65 83 / 20 20 20 30 ELD 65 85 63 85 / 10 20 10 20 TYR 69 85 66 84 / 10 20 10 20 GGG 68 86 65 84 / 10 20 10 20 LFK 68 86 65 84 / 10 20 10 20 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 17/23
Hazardous weather outlook, May 7, 12:00 PM CDT, 6 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1200 PM CDT MON MAY 7 2007 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-081100- ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE- CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD- HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION- MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA- PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX- SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR- WEBSTER-WINN-WOOD- 1200 PM CDT MON MAY 7 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST TEXAS...SOUTHWEST ARKANSAS...NORTHWEST AND NORTH CENTRAL LOUISIANA. .DAY ONE...TODAY AND TONIGHT... ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE TODAY ACROSS MAINLY NORTHEAST TEXAS...SOUTHEAST OKLAHOMA AND SOUTHWEST ARKANSAS. WITH A VERY UNSTABLE ATMOSPHERE EXPECTED THIS AFTERNOON AND THIS EVENING...A FEW OF THESE STORMS COULD BECOME SEVERE PRODUCING LARGE HAIL AND DAMAGING WIND GUSTS. HOWEVER... WIDESPREAD SEVERE THUNDERSTORMS ARE NOT EXPECTED TODAY OR TONIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... THERE IS ONLY A SLIGHT RISK OF SEVERE THUNDERSTORMS...MAINLY NORTH OF THE INTERSTATE 30 CORRIDOR...FOR TUESDAY. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF EMERGENCY MANAGERS...SKYWARN NETWORKS...AND STORM SPOTTERS...SHOULD NOT BE NEEDED TODAY OR TONIGHT. 17
In the hours before
Local storm report, May 7, 2:23 PM CDT, 3 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
223 PM CDT MON MAY 07 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0155 PM HAIL LOCKESBURG 33.97N 94.17W
05/07/2007 E1.00 INCH SEVIER AR POST OFFICE
NICKEL SIZE BEGAN AT 1355 CDT...QUARTER SIZE REPORTED AT
1410 CDT
&&
12Local storm report, May 7, 2:24 PM CDT, 3 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
224 PM CDT MON MAY 07 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0212 PM HAIL LOCKESBURG 33.97N 94.17W
05/07/2007 M1.25 INCH SEVIER AR LAW ENFORCEMENT
REPORTED BY SEVIER CO S/O
&&
12Local storm report, May 7, 4:16 PM CDT, 1 hour 44 minutes before
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 3:53 PM CDT | Severe Thunderstorm Warning | SHV | Bowie | 52 min |
| May 7, 5:35 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 25 min |
| May 7, 6:04 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 26 min |
| May 7, 6:19 PM CDT | Severe Thunderstorm Warning | SHV | Caddo | 56 min |
| May 7, 2:05 PM CDT | Severe Thunderstorm Warning | SHV | Sevier | 40 min |
| May 7, 4:18 PM CDT | Severe Thunderstorm Warning | SHV | Little River | 57 min |
| May 7, 5:12 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead | 48 min |
| May 7, 6:27 PM CDT | Severe Thunderstorm Warning | SHV | Nevada | 63 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2007Every severe thunderstorm warning in 2007
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.