Alert archive / Arkansas / Severe Thunderstorm Warnings in 2007
Severe Thunderstorm Warning 80, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Apr 13, 2007, 12:55 PM CDT for Cleveland County, Grant County, Jefferson County, Arkansas. It was in force for 50 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 13, 2007, 12:55 PM CDT (17:55 UTC)
- Expired
- Apr 13, 2007, 1:45 PM CDT
- In force
- 50 min
- Issued by
- NWS Little Rock, AR
- Area
- Counties, with a storm outline in the text
Counties Cleveland County, AR, Grant County, AR, Jefferson County, AR
The radar
The Little Rock radar (KLZK), 76 km from the middle of the area, began a volume at 17:55 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
Little Rock, AR (KLZK), launched 12:00Z, 5.9 hours before the alert went out and 218 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
- 1690 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 210 m²/s²
- 0-3 km storm-relative helicity
- 551 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 Little Rock, AR wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 13, 12:38 PM CDT, 17 minutes earlier.
Area forecast discussion, Apr 13, 12:38 PM CDT, 17 minutes before
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</html>Hazardous weather outlook, Apr 13, 5:00 AM CDT, 7 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 500 AM CDT FRI APR 13 2007 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-141000- ARKANSAS-BAXTER-BOONE-BRADLEY-CALHOUN-CLARK-CLEBURNE-CLEVELAND- CONWAY-DALLAS-DESHA-DREW-FAULKNER-FULTON-GARLAND-GRANT-HOT SPRING- INDEPENDENCE-IZARD-JACKSON-JEFFERSON-JOHNSON-LINCOLN-LOGAN-LONOKE- MARION-MONROE-MONTGOMERY-NEWTON-OUACHITA-PERRY-PIKE-POLK-POPE- PRAIRIE-PULASKI-SALINE-SCOTT-SEARCY-SHARP-STONE-VAN BUREN-WHITE- WOODRUFF-YELL- 500 AM CDT FRI APR 13 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT A STORM SYSTEM CURRENTLY IN THE SOUTHWEST PART OF THE NATION WILL MOVE ACROSS SOUTHERN ARKANSAS DURING THE PERIOD BRINGING A CHANCE OF HEAVY RAIN AND POSSIBLE SEVERE WEATHER TO THE NATURAL STATE. SCATTERED SHOWERS WILL BE POSSIBLE MOST OF THE MORNING WITH WIDESPREAD RAIN DEVELOPING DURING THE AFTERNOON. ISOLATED THUNDERSTORMS WILL BE POSSIBLE WITH THE BEST CHANCES OVER THE SOUTHERN PART OF THE STATE. A WARM FRONT IS FORECAST TO MOVE EASTWARD AND STRADDLE THE LOUISIANA AND ARKANSAS BORDER BY THE END OF THE DAY. COPIOUS AMOUNTS OF GULF MOISTURE WILL RIDE UP AND OVER THE BOUNDARY. THE RESULT WILL BE WIDESPREAD...LOCALLY HEAVY...RAIN ACROSS THE FORECAST AREA. THE WARM FRONT IS THEN EXPECTED TO MOVE SLOWLY TO THE NORTH LATE THIS AFTERNOON OR EARLY TONIGHT. AREAS ALONG AND TO THE SOUTH OF THE BOUNDARY WILL HAVE THE BEST CHANCES OF SEEING ORGANIZED SEVERE WEATHER ESPECIALLY AS THE LOW PRESSURE SYSTEM AND ASSOCIATED COLD FRONT MOVE ACROSS SOUTHERN ARKANSAS. THE BEST CHANCES OF SEEING SEVERE WEATHER WILL BE SOUTH OF A HOPE TO MONTICELLO LINE BUT ISOLATED SEVERE THUNDERSTORMS COULD OCCUR FURTHER NORTH...ROUGHLY ALONG AN ARKADELPHIA TO PINE BLUFF LINE. THE ATMOSPHERE APPEARERS TO REMAIN TOO STABLE FOR SEVERE WEATHER NORTH OF THIS LINE BUT AN ISOLATED THUNDERSTORM OF TWO WILL REMAIN POSSIBLE. THE SEVERE STORMS...SHOULD THEY DEVELOP IN THE WARM SECTOR...WILL BE CAPABLE OF PRODUCING STRONG DAMAGING WINDS...LARGE HAIL AND POSSIBLY A TORNADO OR TWO. THE STORM PREDICTION CENTER HAS ISSUED A MODERATE RISK OF SEVERE WEATHER OVER FAR SOUTHWEST ARKANSAS WITH A SLIGHT RISK AS FAR NORTH AS A BRINKLEY TO CONWAY TO CLARKSVILLE LINE. THE POSSIBILITY OF HEAVY RAIN WILL CONTINUE ACROSS THE REMAINDER OF THE FORECAST AREA THROUGH MOST OF THE NIGHT WITH PRECIPITATION CHANCES DECREASING TOWARDS MORNING AS THE SYSTEM PULLS AWAY. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SHOWERS AND THUNDERSTORMS WILL LINGER INTO EARLY SATURDAY...WITH COOLER WEATHER TO RETURN FOR THE WEEKEND. WARMER TEMPERATURES ARE THEN EXPECTED FOR MONDAY. THE NEXT SYSTEM WILL APPROACH ON TUESDAY AND BRING A CHANCE OF SHOWERS AND THUNDERSTORMS WHICH WILL CONTINUE INTO WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATER TONIGHT. VISIT NWS LITTLE ROCK ON THE WEB. GO TO WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 38/56
In the hours before
Special weather statement, Apr 13, 10:45 AM CDT, 2 hours 10 minutes before
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</html>The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 6:50 PM CDT | Severe Thunderstorm Warning | LZK | Bradley, Calhoun, Cleveland | 40 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.