Alert archive / Arkansas / Flash Flood Warnings in 2009

Flash Flood Warning 142, NWS Little Rock, AR

October 9, 200919 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Oct 9, 2009, 1:39 AM CDT for 19 counties in Arkansas. It was in force for 6 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
Oct 9, 2009, 1:39 AM CDT (06:39 UTC)
Expired
Oct 9, 2009, 7:45 AM CDT
In force
6 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Cleburne County, AR, Conway County, AR, Faulkner County, AR, Garland County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Montgomery County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Saline County, AR, Scott County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, White County, AR, Yell County, AR

The radar

The Little Rock radar (KLZK), 55 km from the middle of the area, began a volume at 06:42 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

Springfield, MO (KSGF), launched 00:00Z, 6.7 hours before the alert went out and 215 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, Springfield, MO at 00:00Z on 2009-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Springfield, MO at 00:00Z on 2009-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -367 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
499 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-367 m²/s²
0-3 km storm-relative helicity
-20 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

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 Oct 9, 12:42 AM CDT, 57 minutes earlier.

Area forecast discussion, Oct 9, 12:42 AM CDT, 57 minutes before
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Hazardous weather outlook, Oct 8, 5:30 PM CDT, 8 hours 9 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LITTLE ROCK AR
530 PM CDT THU OCT 8 2009

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-091000-
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-
530 PM CDT THU OCT 8 2009

.DAY ONE...TONIGHT

A COLD FRONT WAS CURRENTLY DRAPED ACROSS CENTRAL OKLAHOMA INTO
CENTRAL MISSOURI WITH A WARM FRONT LOCATED ACROSS THE NORTHERN PART
OF THE STATE. VERY MOIST AIR WAS LOCATED ACROSS MUCH OF
ARKANSAS...WITH DEWPOINTS IN THE UPPER 60S TO MID 70S ACROSS MUCH
OF ARKANSAS. WITH HIGH LOW LEVEL MOISTURE...COMBINED WITH INCREASING
INSTABILITY...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL
CONTINUE TO BE POSSIBLE THIS EVENING ACROSS CENTRAL AND NORTHERN
SECTIONS OF ARKANSAS. THUNDERSTORMS THAT DO FORM WILL HAVE THE
POTENTIAL TO BECOME SEVERE WITH LARGE HAIL AND HIGH WINDS BECOMING
THREATS. TORNADOES WILL ALSO BE POSSIBLE WHERE LOW LEVEL SHEAR IS
HIGHEST...AND INSTABILITY IS GREATEST JUST SOUTH OF THE WARM FRONT.

AS THE COLD FRONT APPROACHES NORTHWEST ARKANSAS THIS
TONIGHT...THUNDERSTORMS WILL BECOME MORE WIDESPREAD. ALSO...WITH
ABUNDANT MOISTURE MOVING INTO THE STATE FROM THE GULF OF
MEXICO...HEAVY RAINFALL WILL ALSO BE LIKELY AND A FLASH FLOOD WATCH
IS IN EFFECT FOR PARTS OF NORTH...CENTRAL AND SOUTHWEST ARKANSAS
THIS EVENING THROUGH FRIDAY AFTERNOON.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A FLASH FLOOD WATCH WILL CONTINUE INTO FRIDAY AFTERNOON AS SHOWERS
AND THUNDERSTORMS CONTINUE. TWO TO FOUR INCHES OF RAIN CAN BE
EXPECTED WITH THIS SYSTEM...WITH ISOLATED LOCALIZED SIX INCH
AMOUNTS. DRY WEATHER IS EXPECTED FOR THE WEEKEND INTO NEXT WEEK AS
HIGH PRESSURE BUILDS OVER THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT.

&&

VISIT NWS LITTLE ROCK ON THE WEB. GO TO WEATHER.GOV AND CLICK ON
CENTRAL ARKANSAS.

51/62/60

In the hours before

Special weather statement, Oct 8, 9:58 PM CDT, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
958 PM CDT THU OCT 8 2009

ARZ003>005-012>014-090355-
BAXTER-BOONE-MARION-NEWTON-SEARCY-STONE-
958 PM CDT THU OCT 8 2009

...SIGNIFICANT WEATHER ALERT FOR BAXTER...BOONE...MARION...NEWTON...
SEARCY AND STONE COUNTIES UNTIL 1055 PM CDT...

AT 956 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
AN AREA OF STRONG THUNDERSTORMS...MOVING OVER BOONE...BAXTER...
MARION COUNTIES...AND MOVING TO THE EAST AT 30 MPH.

THE STORMS ARE CAPABLE OF PRODUCING WIND GUSTS UP TO 40 MPH...VERY
HEAVY RAIN...SMALL HAIL AND DANGEROUS LIGHTNING. THE HEAVY RAIN MAY
PRODUCE LOCALIZED PONDING OF WATER ON ROADWAYS AND IN LOW LYING
AREAS.

FREQUENT...DANGEROUS LIGHTNING IS OCCURRING WITH THIS STORM. IF
OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE
INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS
AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.

TORRENTIAL DOWNPOURS MAY CAUSE LOCALIZED MINOR FLOODING IN LOW LYING
AREAS. MOTORISTS SHOULD BE ADVISED TO EXPECT REDUCED VISIBILITY DUE
TO THE VERY HEAVY RAIN.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN LITTLE ROCK

59
Local storm report, Oct 8, 10:16 PM CDT, 3 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1016 PM CDT THU OCT 08 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1013 PM     FLASH FLOOD      HARRISON                36.24N 93.12W
10/08/2009                   BOONE              AR   TRAINED SPOTTER

            LOW WATER CROSSINGS IN HARRISON OFF HWY 65 ARE FLOODING.
            A WATER RESCUE HAS BEEN REPORTED THERE.

&&

224
Local storm report, Oct 8, 10:17 PM CDT, 3 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1017 PM CDT THU OCT 08 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1017 PM     FLASH FLOOD      HARRISON                36.24N 93.12W
10/08/2009                   BOONE              AR   TRAINED SPOTTER

            COTTONWOOD ROAD NEAR HARRISON IS CLOSED DUE TO FLOODING.

&&

224
Local storm report, Oct 9, 12:12 AM CDT, 1 hour 27 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 8:24 PM CDTRiver Flood WarningLZKIzard, Stone36 hr
Oct 8, 8:24 PM CDTRiver Flood WarningLZKIndependence36 hr
Oct 8, 8:43 PM CDTSevere Thunderstorm WarningLZKBoone, Marion47 min
Oct 8, 9:02 PM CDTRiver Flood WarningLZKRandolph72 hr
Oct 8, 9:02 PM CDTRiver Flood WarningLZKIndependence, Jackson, Lawrence8 days
Oct 8, 9:33 PM CDTRiver Flood WarningLZKWhite, Woodruff52 days
Oct 8, 10:09 PM CDTFlash Flood WarningLZKBaxter, Boone, Marion6 hr
Oct 8, 10:25 PM CDTSevere Thunderstorm WarningLZKBaxter, Fulton50 min
Oct 8, 11:11 PM CDTSevere Thunderstorm WarningLZKJohnson, Newton49 min
Oct 8, 11:24 PM CDTFlash Flood WarningLZKBoone, Johnson, Marion, Newton, Searcy6 hr
Oct 8, 11:52 PM CDTSevere Thunderstorm WarningLZKJohnson, Newton, Pope, Searcy38 min
Oct 9, 12:30 AM CDTFlash Flood WarningLZKBaxter, Fulton, Izard, Johnson, Logan, Marion and 6 more6 hr
Oct 9, 12:35 AM CDTSevere Thunderstorm WarningLZKConway, Pope, Searcy, Stone, Van Buren40 min
Oct 9, 1:02 AM CDTFlash Flood WarningLZKLogan, Scott, Yell6 hr
Oct 9, 1:18 AM CDTSevere Thunderstorm WarningLZKCleburne, Conway, Izard, Searcy, Stone, Van Buren42 min
Oct 9, 3:45 AM CDTFlash Flood WarningLZKBaxter, Boone, Fulton, Johnson, Marion, Newton and 1 more5 hr
Oct 9, 6:10 AM CDTFlash Flood WarningLZKBaxter, Conway, Fulton, Independence, Izard, Johnson and 12 more3 hr
Oct 9, 6:19 AM CDTFlash Flood WarningLZKClark, Cleburne, Conway, Faulkner, Garland, Grant and 13 more4 hr
Oct 9, 7:05 AM CDTRiver Flood WarningLZKFulton, Sharp3 hr
Oct 9, 7:37 AM CDTFlash Flood WarningLZKCleburne, Conway, Faulkner, Garland, Independence, Izard and 12 more3 hr
Oct 9, 8:02 AM CDTSevere Thunderstorm WarningLZKClark, Dallas, Hot Spring28 min
Oct 9, 8:31 AM CDTRiver Flood AdvisoryLZKSearcy22 hr
Oct 9, 8:50 AM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Cleveland, Dallas, Grant, Ouachita55 min
Oct 9, 8:58 AM CDTAreal Flood WarningLZKBaxter, Boone, Fulton, Izard, Johnson, Logan and 11 more4 hr
Oct 9, 9:07 AM CDTFlash Flood WarningLZKGrant, Jackson, Jefferson, Lonoke, Monroe, Prairie and 4 more3 hr
Oct 9, 9:35 AM CDTRiver Flood WarningLZKYell36 hr
Oct 9, 9:35 AM CDTRiver Flood WarningLZKPerry3 days
Oct 9, 9:37 AM CDTRiver Flood WarningLZKRandolph23 hr
Oct 9, 9:42 AM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Cleveland, Drew, Grant, Jefferson and 1 more63 min
Oct 9, 9:49 AM CDTSevere Thunderstorm WarningLZKArkansas, Jefferson, Lincoln, Monroe, Prairie41 min
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZKFranklin, Johnson, Logan45 hr
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZKPope, Yell21 hr
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZKConway, Perry21 hr
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZKFaulkner, Perry21 hr
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZKPulaski21 hr
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZKJefferson, Lincoln21 hr
Oct 9, 9:57 AM CDTRiver Flood AdvisoryLZKArkansas, Desha, Lincoln21 hr
Oct 9, 10:07 AM CDTFlash Flood WarningLZKHot Spring6 hr
Oct 9, 10:12 AM CDTRiver Flood AdvisoryLZKIndependence, Jackson21 hr
Oct 9, 10:12 AM CDTRiver Flood AdvisoryLZKPrairie, White, Woodruff21 hr
Oct 9, 10:12 AM CDTRiver Flood AdvisoryLZKPrairie21 hr
Oct 9, 10:17 AM CDTRiver Flood WarningLZKArkansas, Monroe54 days
Oct 9, 10:25 AM CDTFlash Flood WarningLZKCleburne, Faulkner, Independence, Izard, Jackson, Lonoke and 6 more3 hr
Oct 9, 10:26 AM CDTSevere Thunderstorm WarningLZKArkansas, Desha, Drew, Jefferson, Lincoln, Monroe64 min
Oct 9, 10:55 AM CDTRiver Flood WarningLZKClark, Hot Spring34 hr
Oct 9, 10:55 AM CDTRiver Flood WarningLZKSaline23 hr
Oct 9, 11:08 AM CDTRiver Flood AdvisoryLZKClark, Nevada, Ouachita20 hr
Oct 9, 11:15 AM CDTRiver Flood AdvisoryLZKYell20 hr
Oct 9, 11:31 AM CDTSevere Thunderstorm WarningLZKArkansas, Desha29 min
Oct 9, 2:34 PM CDTRiver Flood AdvisoryLZKFulton, Sharp16 hr
Oct 9, 2:34 PM CDTRiver Flood AdvisoryLZKLawrence, Randolph16 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.