Alert archive / Arkansas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 76, NWS Little Rock, AR
NWS Little Rock, AR issued this severe thunderstorm warning at Apr 12, 2009, 9:27 AM CDT for 7 counties in Arkansas. It was in force for 33 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 12, 2009, 9:27 AM CDT (14:27 UTC)
- Expired
- Apr 12, 2009, 10:00 AM CDT
- In force
- 33 min
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
Counties Garland County, AR, Grant County, AR, Hot Spring County, AR, Jefferson County, AR, Perry County, AR, Pulaski County, AR, Saline County, AR
The radar
The Little Rock radar (KLZK), 46 km from the middle of the area, began a volume at 14:28 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 12, 7:44 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 2.5 hours before the alert went out and 252 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
- 764 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 229 m²/s²
- 0-3 km storm-relative helicity
- 311 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.8
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 12, 6:35 AM CDT, 2 hours 52 minutes earlier.
Area forecast discussion, Apr 12, 6:35 AM CDT, 2 hours 52 minutes before
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</html>Hazardous weather outlook, Apr 12, 5:00 AM CDT, 4 hours 27 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LITTLE ROCK AR 500 AM CDT SUN APR 12 2009 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-131000- 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 SUN APR 12 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS WILL EXIST OVER THE NATURAL STATE THIS MORNING...AND BECOME MORE WIDESPREAD THIS AFTERNOON AS A STORM SYSTEM MOVES INTO THE REGION. MOISTURE WILL CONTINUE TO INCREASE AHEAD OF THE APPROACHING SYSTEM...WITH AREAS RECEIVING HEAVY RAIN THIS AFTERNOON AND THIS EVENING. WIDESPREAD ONE TO THREE INCH AMOUNTS WILL BE POSSIBLE...ESPECIALLY ACROSS SOUTHERN ARKANSAS. ALONG WITH HEAVY RAIN...STRONG TO SEVERE STORMS WILL BE POSSIBLE. ALTHOUGH THE BIGGEST THREAT WILL REMAIN ALONG THE GULF COAST...AREAS IN SOUTH ARKANSAS COULD HAVE DAMAGING WINDS AND LARGE HAIL WITH STRONGER STORMS. SHOWERS AND THUNDERSTORMS WILL BEGIN TO DIMINISH FROM WEST TO EAST TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY SHOWERS AND ISOLATED THUNDERSTORMS WILL REMAIN IN THE FORECAST ACROSS THE NORTH HALF OF THE STATE THROUGH MONDAY AS MOISTURE WRAPS AROUND THE EXITING SYSTEM. GIVEN THE INSTABILITY AND COLD TEMPERATURES ADVECTING BEHIND THE SYSTEM...LARGE HAIL COULD OCCUR WITH SOME OF THE STRONGER STORMS. DRY WEATHER WILL RETURN FOR TUESDAY AND WEDNESDAY. AN UNSETTLED WEATHER PATTERN WILL SET UP TOWARDS THE END OF THE WEEK AND THROUGH THE WEEKEND AS A SECOND LOW PRESSURE SYSTEM SETS UP OVER THE TEXAS AND OKLAHOMA PANHANDLES. THIS SYSTEM WILL BRING SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS THROUGH THE END OF THE WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 61
In the hours before
Special weather statement, Apr 12, 7:44 AM CDT, 1 hour 43 minutes before
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</html>Special weather statement, Apr 12, 7:54 AM CDT, 1 hour 33 minutes before
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</html>Special weather statement, Apr 12, 8:33 AM CDT, 54 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LITTLE ROCK AR 833 AM CDT SUN APR 12 2009 ARZ038-039-041>043-054-121430- GARLAND-HOT SPRING-MONTGOMERY-PERRY-SALINE-YELL- 833 AM CDT SUN APR 12 2009 ...SIGNIFICANT WEATHER ALERT FOR GARLAND...HOT SPRING...MONTGOMERY... PERRY...SALINE AND YELL COUNTIES UNTIL 930 AM CDT... AT 831 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING AN AREA OF MODERATE TO ISOLATED STRONG THUNDERSTORMS...MOVING ACROSS MAINLY MONTGOMERY...GARLAND AND HOT SPRINGS COUNTIES. THE STORMS WERE MOVING NORTHEAST AT 50 MPH. THIS WILL AFFECT THE HOT SPRINGS AREA. THE STORMS ARE EXPECTED TO PRODUCE SMALL HAIL...WIND GUSTS UP TO 40 MPH...DANGEROUS LIGHTNING AND ISOLATED BRIEF HEAVY RAIN. 59
Special weather statement, Apr 12, 9:23 AM CDT, 4 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 12, 7:32 AM CDT | Severe Thunderstorm Warning | LZK | Bradley, Calhoun, Cleveland, Drew, Ouachita | 43 min |
| Apr 12, 8:11 AM CDT | Severe Thunderstorm Warning | LZK | Bradley, Calhoun, Cleveland, Dallas, Drew | 49 min |
| Apr 12, 8:45 AM CDT | Severe Thunderstorm Warning | LZK | Cleveland, Drew, Lincoln | 30 min |
| Apr 12, 8:51 AM CDT | Severe Thunderstorm Warning | LZK | Clark, Dallas, Garland, Grant, Hot Spring, Saline | 39 min |
| Apr 12, 9:15 AM CDT | Severe Thunderstorm Warning | LZK | Clark, Garland, Hot Spring, Montgomery, Pike | 30 min |
| Apr 12, 10:20 AM CDT | Severe Thunderstorm Warning | LZK | Grant, Jefferson, Lonoke, Pulaski, Saline | 25 min |
| Apr 12, 10:43 AM CDT | Severe Thunderstorm Warning | LZK | Lonoke, Prairie, Pulaski, White | 32 min |
| Apr 12, 11:22 AM CDT | Severe Thunderstorm Warning | LZK | Drew | 23 min |
| Apr 12, 11:41 AM CDT | Severe Thunderstorm Warning | LZK | Desha, Drew | 34 min |
| Apr 12, 12:11 PM CDT | Areal Flood Advisory | LZK | Faulkner, Jefferson, Lonoke, Pulaski, Saline | 156 days |
Nearby
Severe Thunderstorm Warnings in Arkansas, 2009Every severe thunderstorm warning in 2009
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.