Alert archive / Arkansas / Flash Flood Warnings in 2009

Flash Flood Warning 75, NWS Little Rock, AR

July 26, 2009Arkansas County, Monroe County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 26, 2009, 6:30 PM CDT for Arkansas County, Monroe County, Arkansas. It was in force for 63 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
Jul 26, 2009, 6:30 PM CDT (23:30 UTC)
Expired
Jul 26, 2009, 7:33 PM CDT
In force
63 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Arkansas County, AR, Monroe County, AR

The radar

The Little Rock radar (KLZK), 97 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 128 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.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2009-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2610 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2009-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2610 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
1078 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jul 26, 6:25 PM CDT, 5 minutes earlier.

Area forecast discussion, Jul 26, 6:25 PM CDT, 5 minutes before
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Hazardous weather outlook, Jul 26, 11:47 AM CDT, 6 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
500 AM CDT SUN JUL 26 2009

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-271000-
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-
1130 AM CDT SUN JUL 26 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A COLD FRONT OVER THE AREA WILL CONTINUE TO DRIFT SOUTH TODAY...AND
STALL. SCATTERED SHOWERS AND THUNDERSTORMS WILL LIKELY RE DEVELOP
SOUTH OF THIS FRONT LATER TODAY. THE HIGHEST RAIN CHANCES WILL BE IN
SOUTHERN ARKANSAS. WHILE WIDESPREAD SEVERE WEATHER IS NOT
EXPECTED...ISOLATED STORMS MAY BECOME SEVERE...WITH DAMAGING WINDS
AS THE MAIN CONCERN. LIKELIEST AREA FOR SEVERE WEATHER WILL BE IN
EXTREME SOUTHEAST ARKANSAS...AHEAD OF THE FRONT...WHERE THE MOST
UNSTABLE ATMOSPHERE IS LOCATED. IN ADDITION...FLASH FLOODING WILL BE
POSSIBLE WITH ANY STORM THAT DEVELOPS AS MOISTURE CONTINUES TO POOL
IN NEAR THE STALLED FRONT AND STORMS TRAIN OVER THE SAME AREAS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE STALLED FRONT WILL REMAIN OVER THE STATE MONDAY AND
TUESDAY...CONTINUING RAIN CHANCES...MAINLY OVER THE SOUTHERN HALF OF
THE STATE. ANOTHER COLD FRONT WILL MOVE INTO THE STATE WEDNESDAY.
DUE TO HIGH PRESSURE OVER THE SOUTHERN PLAINS AND WEAK UPPER
FLOW...THIS FRONT WILL ALSO STALL OVER THE STATE.

SEVERAL ROUND OF SHOWERS AND THUNDERSTORMS WILL DEVELOP OVER THE
STATE THIS WEEK...AS MANY DISTURBANCES MOVE ALONG THE FRONT. WHILE
WIDESPREAD SEVERE WEATHER IS NOT EXPECTED...HEAVY RAINFALL WILL BE
POSSIBLE...BRINGING CONCERNS FOR FLASH FLOODING.

.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.

58/61

In the hours before

Local storm report, Jul 26, 3:12 PM CDT, 3 hours 18 minutes before
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Local storm report, Jul 26, 3:37 PM CDT, 2 hours 53 minutes before
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Local storm report, Jul 26, 4:50 PM CDT, 1 hour 40 minutes before
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Local storm report, Jul 26, 5:01 PM CDT, 1 hour 29 minutes before
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Local storm report, Jul 26, 5:04 PM CDT, 1 hour 26 minutes before
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Local storm report, Jul 26, 5:16 PM CDT, 1 hour 14 minutes before
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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 25, 7:12 PM CDTSevere Thunderstorm WarningLZKMontgomery29 min
Jul 26, 2:40 PM CDTSevere Thunderstorm WarningLZKGarland, Hot Spring, Saline50 min
Jul 26, 2:46 PM CDTSevere Thunderstorm WarningLZKClark, Montgomery, Pike44 min
Jul 26, 3:14 PM CDTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring, Montgomery, Pike46 min
Jul 26, 3:28 PM CDTSevere Thunderstorm WarningLZKDallas, Garland, Grant, Hot Spring, Saline47 min
Jul 26, 3:54 PM CDTTornado WarningLZKClark, Dallas, Garland, Hot Spring51 min
Jul 26, 4:28 PM CDTSevere Thunderstorm WarningLZKJefferson47 min
Jul 26, 4:32 PM CDTSevere Thunderstorm WarningLZKGarland, Hot Spring, Montgomery43 min
Jul 26, 4:47 PM CDTFlash Flood WarningLZKGarland, Hot Spring, Montgomery3 hr
Jul 26, 5:00 PM CDTSevere Thunderstorm WarningLZKMontgomery, Pike45 min
Jul 26, 5:11 PM CDTSevere Thunderstorm WarningLZKArkansas, Jefferson, Lincoln29 min
Jul 26, 5:37 PM CDTSevere Thunderstorm WarningLZKMontgomery, Pike38 min
Jul 26, 5:45 PM CDTSevere Thunderstorm WarningLZKClark, Montgomery, Pike45 min
Jul 26, 5:52 PM CDTSevere Thunderstorm WarningLZKClark, Hot Spring38 min
Jul 26, 6:15 PM CDTSevere Thunderstorm WarningLZKMontgomery, Pike45 min
Jul 26, 6:19 PM CDTFlash Flood WarningLZKPike3 hr
Jul 26, 6:24 PM CDTSevere Thunderstorm WarningLZKMontgomery, Pike, Polk, Scott51 min
Jul 26, 6:35 PM CDTSevere Thunderstorm WarningLZKPike40 min

Nearby

Flash Flood Warnings in Arkansas, 2009Every flash flood 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.