Alert archive / Arkansas / Flash Flood Warnings in 2009
Flash Flood Warning 111, NWS Little Rock, AR
NWS Little Rock, AR issued this flash flood warning at Sep 15, 2009, 9:13 PM CDT for Grant County, Jefferson County, Arkansas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 15, 2009, 9:13 PM CDT (02:13 UTC)
- Expired
- Sep 16, 2009, 1:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS Little Rock, AR
- Area
- Storm-based polygon
- Flood severity
- None
Counties Grant County, AR, Jefferson County, AR
The radar
The Little Rock radar (KLZK), 62 km from the middle of the area, began a volume at 02:16 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 00:00Z, 2.2 hours before the alert went out and 213 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
- 862 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 453 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Sep 15, 6:54 PM CDT, 2 hours 19 minutes earlier.
Area forecast discussion, Sep 15, 6:54 PM CDT, 2 hours 19 minutes before
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</html>Hazardous weather outlook, Sep 15, 1:50 PM CDT, 7 hours 23 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LITTLE ROCK AR 150 PM CDT TUE SEP 15 2009 ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-161000- 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- 150 PM CDT TUE SEP 15 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR A LARGE PART OF ARKANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT BANDS OF SHOWERS AND THUNDERSTORMS WILL CONTINUE MOVING NORTH AND WEST THROUGH ARKANSAS FROM THE GULF COAST REGION. PRECIPITATION WILL ROTATE AROUND A STORM SYSTEM IN NORTHERN LOUISIANA. HEAVY DOWNPOURS WILL BE HIT AND MISS THIS AFTERNOON...BUT MAY BECOME MORE CONCENTRATED OVERNIGHT. IT APPEARS THAT WIDESPREAD HEAVY RAIN MAY DEVELOP FROM MENA AND ARKADELPHIA NORTHEAST THROUGH HOT SPRINGS...MORRILTON...LITTLE ROCK...HEBER SPRINGS...DES ARC AND AUGUSTA. SHOULD THIS MATERIALIZE...RAINFALL AMOUNTS OF ONE TO THREE INCHES WOULD BE COMMON...WITH LOCALLY MORE. GIVEN A NEARLY SATURATED GROUND IN SOME AREAS...ADDITIONAL WATER WILL HAVE NOWHERE TO GO. THIS WILL INCREASE THE FLASH FLOOD POTENTIAL OVERNIGHT. A FLASH FLOOD WATCH HAS BEEN POSTED FOR MUCH OF CENTRAL AND SOUTHERN ARKANSAS THROUGH WEDNESDAY. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE ARE SIGNS THE SYSTEM IN NORTHERN LOUISIANA WILL WEAKEN ON THURSDAY AND FRIDAY...AND PRECIPITATION WILL BECOME MORE SCATTERED THIS WEEKEND. BEFORE THIS HAPPENS...AREAS OF HEAVY RAIN WILL REMAIN LIKELY ON WEDNESDAY AND WEDNESDAY NIGHT. FLASH FLOODING WILL REMAIN A CONCERN...ESPECIALLY IN THE SOUTHEAST HALF OF ARKANSAS. ANY SEVERE STORMS WILL BE ISOLATED...AND CONFINED TO THE SOUTHERN HALF OF THE STATE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY. && VISIT NWS LITTLE ROCK ON THE WEB. GO TO HTTP://WEATHER.GOV AND CLICK ON CENTRAL ARKANSAS. 59/46
The office that day
Everything else NWS Little Rock, AR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 12:12 AM CDT | Flash Flood Warning | LZK | Faulkner, Garland, Hot Spring, Lonoke, Perry, Pulaski and 1 more | 2 hr |
| Sep 16, 5:13 AM CDT | Flash Flood Warning | LZK | Independence, Jackson, White, Woodruff | 2 hr |
| Sep 16, 6:47 AM CDT | Flash Flood Warning | LZK | Conway, Faulkner, Lonoke, Perry, Pope, Prairie and 4 more | 3 hr |
| Sep 16, 6:48 AM CDT | River Flood Warning | LZK | Saline | 48 hr |
| Sep 16, 7:20 AM CDT | Flash Flood Warning | LZK | Independence, Jackson, White, Woodruff | 4 hr |
| Sep 16, 7:33 AM CDT | Flash Flood Warning | LZK | Garland, Johnson, Logan, Montgomery, Perry, Polk and 3 more | 4 hr |
| Sep 16, 7:47 AM CDT | Flash Flood Warning | LZK | Cleburne, Conway, Faulkner, Independence, Pope, Stone and 2 more | 4 hr |
| Sep 16, 8:26 AM CDT | River Flood Warning | LZK | Perry | 5 days |
| Sep 16, 9:23 AM CDT | River Flood Advisory | LZK | Clark, Hot Spring | 22 hr |
| Sep 16, 9:23 AM CDT | River Flood Advisory | LZK | Calhoun, Ouachita | 22 hr |
| Sep 16, 10:06 AM CDT | Flash Flood Warning | LZK | Conway, Faulkner, Perry, Pope, White, Yell | 114 min |
| Sep 16, 12:10 PM CDT | Flash Flood Warning | LZK | Cleburne, Conway, Faulkner, Van Buren, White | 3 hr |
| Sep 16, 2:11 PM CDT | River Flood Warning | LZK | Clark, Hot Spring | 30 hr |
| Sep 16, 2:12 PM CDT | River Flood Warning | LZK | Yell | 4 days |
| Sep 16, 2:20 PM CDT | River Flood Advisory | LZK | Yell | 17 hr |
| Sep 16, 2:21 PM CDT | Flash Flood Warning | LZK | Monroe, Prairie, White, Woodruff | 3 hr |
| Sep 16, 3:03 PM CDT | Flash Flood Warning | LZK | Cleburne, Conway, Faulkner, Lonoke, Perry, Pulaski and 2 more | 3 hr |
| Sep 16, 5:59 PM CDT | Flash Flood Warning | LZK | Cleburne, Conway, Faulkner, Lonoke, Monroe, Perry and 6 more | 2 hr |
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.