Alert archive / Arkansas / Flash Flood Warnings in 2014

Flash Flood Warning 33, NWS Little Rock, AR

July 9, 2014Polk County, Scott County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 9, 2014, 2:00 AM CDT for Polk County, Scott County, Arkansas. It was in force for 3 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
Jul 9, 2014, 2:00 AM CDT (07:00 UTC)
Expired
Jul 9, 2014, 5:00 AM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Polk County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 71 km from the middle of the area, began a volume at 07:01 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, 7.0 hours before the alert went out and 250 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 2014-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 75 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 2014-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.193958Sfc1 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
75 J/kg
Mixed-layer CIN
-196 J/kg
Mixed-layer LCL
1334 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

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 9, 1:00 AM CDT, 1 hour earlier.

Area forecast discussion, Jul 9, 1:00 AM CDT, 1 hour before
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Hazardous weather outlook, Jul 8, 5:00 AM CDT, 21 hours before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LITTLE ROCK AR
500 AM CDT TUE JUL 8 2014

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-
500 AM CDT TUE JUL 8 2014

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

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND A FEW THUNDERSTORMS IN THE NORTHERN HALF OF ARKANSAS
THIS MORNING WILL WEAKEN. THERE WILL BE A LULL INTO THE AFTERNOON
HOURS...AND THEN SCATTERED THUNDERSTORMS ARE EXPECTED TO REDEVELOP
IN THE NORTH.

THE NEW STORMS WILL LIKELY BUILD SLOWLY TOWARD CENTRAL AND SOUTHERN
SECTIONS OF THE STATE THROUGH THE EVENING HOURS AS A COLD FRONT
PUSHES INTO THE REGION FROM MISSOURI.

SOME STORMS WILL LIKELY BE SEVERE THIS AFTERNOON AND EVENING.
DAMAGING WINDS AND QUARTER SIZE HAIL OR LARGER WILL BE THE MAIN
CONCERNS.

THE STRONGEST STORMS WILL DROP LOCALLY HEAVY RAIN...WITH SOME SPOTS
PICKING UP MORE THAN AN INCH OF PRECIPITATION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE AFOREMENTIONED FRONT WILL PUSH INTO SOUTHERN ARKANSAS ON
WEDNESDAY...WITH COOLER AIR TO FOLLOW ACROSS THE NORTHERN COUNTIES.
FARTHER SOUTH...HIT AND MISS THUNDERSTORMS ARE IN THE FORECAST
SURROUNDING THE FRONT. AGAIN...A FEW STORMS COULD BE SEVERE.

MORE STORMS SHOULD POP UP ON THURSDAY...ESPECIALLY IN SOUTHERN AND
WESTERN SECTIONS OF THE STATE. ON FRIDAY...ANY STORMS WILL BECOME
MORE SPOTTY AS THE FRONT LIFTS TO THE NORTH.

A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE AREA FROM THE SOUTHWEST
THIS WEEKEND. TEMPERATURES WILL BE ABOVE NORMAL...WITH AFTERNOON
HEAT INDEX VALUES AROUND 100 DEGREES IN ALL BUT THE OZARK MOUNTAINS
OF THE NORTHWEST.

IT APPEARS THE HEAT WILL BE TEMPORARY. HIGH PRESSURE WILL WEAKEN
EARLY NEXT WEEK...AND THAT WILL ALLOW ANOTHER COLD FRONT TO VISIT
FROM THE NORTH. COOLER CONDITIONS ARE EXPECTED BEHIND THE FRONT...
WITH BELOW NORMAL TEMPERATURES BEYOND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING AS
SEVERE WEATHER BECOMES MORE LIKELY.

&&

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

46

In the hours before

Local storm report, Jul 8, 9:29 PM CDT, 4 hours 31 minutes before
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Local storm report, Jul 8, 9:32 PM CDT, 4 hours 28 minutes before
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Local storm report, Jul 8, 9:36 PM CDT, 4 hours 24 minutes before
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Local storm report, Jul 8, 9:50 PM CDT, 4 hours 10 minutes before
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Special weather statement, Jul 8, 9:57 PM CDT, 4 hours 3 minutes before
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Special weather statement, Jul 8, 10:07 PM CDT, 3 hours 53 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 7:02 PM CDTSpecial Weather StatementLZKFaulkner28 min
Jul 8, 7:11 PM CDTFlash Flood WarningLZKConway, Faulkner, Perry, Pope, Van Buren, Yell109 min
Jul 8, 7:13 PM CDTSevere Thunderstorm WarningLZKConway, Perry, Yell47 min
Jul 8, 7:20 PM CDTSevere Thunderstorm WarningLZKFaulkner, Perry, Pulaski, White25 min
Jul 8, 7:50 PM CDTSevere Thunderstorm WarningLZKWhite25 min
Jul 8, 8:00 PM CDTSevere Thunderstorm WarningLZKGarland, Montgomery, Perry, Yell30 min
Jul 8, 8:03 PM CDTSpecial Weather StatementLZKLonoke32 min
Jul 8, 8:06 PM CDTSpecial Weather StatementLZKWoodruff14 min
Jul 8, 8:14 PM CDTSevere Thunderstorm WarningLZKWoodruff31 min
Jul 8, 9:57 PM CDTSpecial Weather StatementLZKHot Spring43 min
Jul 8, 10:07 PM CDTSpecial Weather StatementLZKPolk28 min
Jul 8, 10:48 PM CDTFlash Flood WarningLZKPolk, Scott3 hr
Jul 9, 5:55 AM CDTFlash Flood WarningLZKPolk4 hr
Jul 9, 9:29 AM CDTFlash Flood WarningLZKPolk2 hr

Nearby

Flash Flood Warnings in Arkansas, 2014Every flash flood warning in 2014

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.