Alert archive / Arkansas / Flash Flood Warnings in 2007

Flash Flood Warning 41, NWS Little Rock, AR

June 19, 2007Desha County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jun 19, 2007, 3:11 AM CDT for Desha 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
Jun 19, 2007, 3:11 AM CDT (08:11 UTC)
Expired
Jun 19, 2007, 5:45 AM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Whole counties

County Desha County, AR

The radar

The Little Rock radar (KLZK), 145 km from the middle of the area, began a volume at 08:13 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

Jackson, MS (KJAN), launched 00:00Z, 8.2 hours before the alert went out and 201 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, Jackson, MS at 00:00Z on 2007-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 381 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, Jackson, MS at 00:00Z on 2007-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939Sfc1 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
381 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
884 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

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 Jun 19, 1:32 AM CDT, 1 hour 39 minutes earlier.

Area forecast discussion, Jun 19, 1:32 AM CDT, 1 hour 39 minutes before
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Hazardous weather outlook, Jun 18, 9:25 PM CDT, 5 hours 46 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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In the hours before

Special weather statement, Jun 19, 1:44 AM CDT, 1 hour 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
144 AM CDT TUE JUN 19 2007

ARZ065-190730-
DESHA-
144 AM CDT TUE JUN 19 2007

...SIGNIFICANT WEATHER ALERT FOR SOUTHERN DESHA COUNTY
UNTIL 230 AM CDT...

AT 141 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A STRONG THUNDERSTORM NEAR DERMOTT...MOVING EAST
AT 15 MPH.

THE STORM WAS CAPABLE OF PRODUCING WIND GUSTS OF 30 TO
40 MPH AND PEA SIZE HAIL.

THE NATIONAL WEATHER SERVICE WILL CONTINUE MONITORING THE
STORM CLOSELY FOR POSSIBLE STRENGTHENING AS IT MOVES
ACROSS SOUTHERN DESHA COUNTY.

46
Special weather statement, Jun 19, 2:40 AM CDT, 31 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
240 AM CDT TUE JUN 19 2007

ARZ065-190830-
DESHA-
240 AM CDT TUE JUN 19 2007

...SIGNIFICANT WEATHER ALERT FOR SOUTHERN DESHA COUNTY
UNTIL 330 AM CDT...

AT 239 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A STRONG THUNDERSTORM NEAR MCGEHEE...MOVING EAST
AT 15 MPH.

THE STORM WAS CAPABLE OF PRODUCING WIND GUSTS OF 30 TO
40 MPH AND PEA SIZE HAIL.

THE NATIONAL WEATHER SERVICE WILL CONTINUE MONITORING THE
STORM CLOSELY FOR POSSIBLE STRENGTHENING AS IT MOVES
ACROSS SOUTHERN DESHA COUNTY.

46
Special weather statement, Jun 19, 2:52 AM CDT, 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
252 AM CDT TUE JUN 19 2007

ARZ012-190835-
NEWTON-
252 AM CDT TUE JUN 19 2007

...SIGNIFICANT WEATHER ALERT FOR NORTHERN NEWTON COUNTY
UNTIL 335 AM CDT...

AT 250 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED A STRONG THUNDERSTORM ABOUT 5 MILES WEST OF JASPER...
MOVING EAST AT 15 MPH.

THE STORM WAS CAPABLE OF PRODUCING WIND GUSTS OF 30 TO
40 MPH AND PEA SIZE HAIL.

THE NATIONAL WEATHER SERVICE WILL CONTINUE MONITORING THE
STORM CLOSELY FOR POSSIBLE STRENGTHENING AS IT MOVES
ACROSS NORTHERN NEWTON COUNTY.

46

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 1:54 AM CDTSevere Thunderstorm WarningLZKDesha36 min
Jun 19, 3:44 AM CDTSevere Thunderstorm WarningLZKDesha46 min
Jun 19, 5:45 AM CDTFlash Flood WarningLZKDesha2 hr
Jun 19, 3:18 PM CDTSevere Thunderstorm WarningLZKMontgomery57 min
Jun 19, 3:49 PM CDTSevere Thunderstorm WarningLZKPolk, Scott56 min
Jun 19, 4:45 PM CDTSevere Thunderstorm WarningLZKPolk, Scott60 min

Nearby

Flash Flood Warnings in Arkansas, 2007Every flash flood warning in 2007

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.