Alert archive / Arkansas / Flash Flood Warnings in 2018

Flash Flood Warning 28, NWS Little Rock, AR

February 24, 20186 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Feb 24, 2018, 4:44 PM CST for 6 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
Feb 24, 2018, 4:44 PM CST (22:44 UTC)
Expired
Feb 24, 2018, 10:15 PM CST
In force
6 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Arkansas County, AR, Desha County, AR, Drew County, AR, Jefferson County, AR, Lincoln County, AR, Monroe County, AR

The radar

The Little Rock radar (KLZK), 105 km from the middle of the area, began a volume at 22:47 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 (KBYH), launched 12:00Z, 10.7 hours before the alert went out and 166 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 2018-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 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 2018-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 176 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
42 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
568 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
176 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Feb 24, 4:00 PM CST, 44 minutes earlier.

Area forecast discussion, Feb 24, 4:00 PM CST, 44 minutes before
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Hazardous weather outlook, Feb 24, 2:03 PM CST, 2 hours 41 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Little Rock AR
203 PM CST Sat Feb 24 2018

ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-252015-
Boone-Marion-Baxter-Fulton-Sharp-Newton-Searcy-Stone-Izard-
Independence-Johnson-Pope-Van Buren-Cleburne-Jackson-Logan-Conway-
Faulkner-White-Woodruff-Scott-Yell-Perry-Polk-Montgomery-Garland-
Saline-Pulaski-Lonoke-Prairie-Monroe-Pike-Clark-Hot Spring-Grant-
Jefferson-Arkansas-Dallas-Cleveland-Lincoln-Desha-Ouachita-
Calhoun-Bradley-Drew-
203 PM CST Sat Feb 24 2018

This Hazardous Weather Outlook is for a Large Part of Arkansas.

.DAY ONE...This afternoon and Tonight

Showers and thunderstorms will remain possible through tonight
as a strong storm system moves through the state. There is a
potential of severe weather this afternoon and early this evening.
A fast moving line of storms is expected, with strong to damaging
winds possible. Some storms may show signs of rotation, and this
could lead to isolated tornadoes.

Rain will be heavy at times, especially in northern and central
sections of the state. Rainfall totals from one to two inches will
be common, with locally higher amounts. In the southeast, half
inch to inch amounts are in the forecast.

Given recent heavy to excessive rain, any additional precipitation
will aggravate high water issues that already exist across much of
the area.

Gusty south to southwest winds are expected in the southern
and eastern counties through this evening. Wind speeds will
average 15 to 25 mph, and gusts could exceed 30 mph in places.
Caution is advised on areas lakes.

Most precipitation will end tonight, with drier air building into
the region. Showers may linger in the southeast overnight.

.DAYS TWO THROUGH SEVEN...Sunday Through Friday

Additional heavy rainfall will be possible by the middle of next
week as showers and thunderstorms return to the forecast. Severe
weather may also become a concern as well. However, details
regarding the heavy rainfall and severe weather threat remain
uncertain this far out. Even so...river flooding will likely be
continuing from the current heavy rain event.

.Spotter Information Statement...

Spotter activation will be needed today in anticipation of severe
weather expected across the area this afternoon through the evening
hours.

&&

Visit NWS Little Rock on the web. Go to http://weather.gov/lzk.

In the hours before

Local storm report, Feb 24, 1:58 PM CST, 2 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
158 PM CST SAT FEB 24 2018

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

0120 PM     TSTM WND GST     MENA                    34.59N  94.24W
02/24/2018  E60 MPH          POLK               AR   AMATEUR RADIO

&&

EVENT NUMBER LZK1800085

55
Local storm report, Feb 24, 3:25 PM CST, 1 hour 19 minutes before
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Local storm report, Feb 24, 3:29 PM CST, 1 hour 15 minutes before
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Local storm report, Feb 24, 3:44 PM CST, 1 hour before
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Local storm report, Feb 24, 3:50 PM CST, 54 minutes before
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Local storm report, Feb 24, 4:33 PM CST, 11 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 10:06 AM CSTDense Fog AdvisoryLZKBaxter, Cleburne, Conway, Faulkner, Fulton, Independence and 6 more3 hr
Feb 24, 10:27 AM CSTAreal Flood WarningLZKFaulkner24 hr
Feb 24, 10:44 AM CSTSpecial Weather StatementLZKScott46 min
Feb 24, 10:48 AM CSTTornado WarningLZKPolk, Scott27 min
Feb 24, 12:38 PM CSTSevere Thunderstorm WarningLZKLogan, Polk, Scott52 min
Feb 24, 12:56 PM CSTSevere Thunderstorm WarningLZKPolk34 min
Feb 24, 1:00 PM CSTSpecial Weather StatementLZKJohnson45 min
Feb 24, 1:13 PM CSTTornado WarningLZKLogan, Yell8 min
Feb 24, 1:24 PM CSTSevere Thunderstorm WarningLZKLogan, Pope, Scott, Yell51 min
Feb 24, 1:32 PM CSTSevere Thunderstorm WarningLZKMontgomery, Pike, Polk, Scott, Yell43 min
Feb 24, 1:40 PM CSTSpecial Weather StatementLZKPope, Searcy50 min
Feb 24, 2:06 PM CSTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring, Montgomery, Perry, Pike and 2 more39 min
Feb 24, 2:10 PM CSTSevere Thunderstorm WarningLZKConway, Perry, Pope, Van Buren, Yell50 min
Feb 24, 2:16 PM CSTSevere Thunderstorm WarningLZKBaxter, Fulton, Izard, Marion, Searcy, Stone44 min
Feb 24, 2:37 PM CSTSevere Thunderstorm WarningLZKBaxter, Fulton38 min
Feb 24, 2:42 PM CSTSevere Thunderstorm WarningLZKClark, Dallas, Faulkner, Garland, Grant, Hot Spring and 6 more48 min
Feb 24, 2:56 PM CSTSevere Thunderstorm WarningLZKBaxter, Fulton, Independence, Izard, Sharp, Stone and 1 more49 min
Feb 24, 2:58 PM CSTSevere Thunderstorm WarningLZKConway, Faulkner, Perry, Van Buren47 min
Feb 24, 3:04 PM CSTFlash Flood WarningLZKFaulkner, Garland, Grant, Hot Spring, Jefferson, Lonoke and 5 more5 hr
Feb 24, 3:10 PM CSTFlash Flood WarningLZKCleburne, Conway, Faulkner, Perry, Pope, Saline and 5 more5 hr
Feb 24, 3:22 PM CSTTornado WarningLZKCleburne, Independence, Izard, Stone, Van Buren23 min
Feb 24, 3:25 PM CSTSevere Thunderstorm WarningLZKFaulkner, Garland, Grant, Lonoke, Perry, Pulaski and 2 more50 min
Feb 24, 3:26 PM CSTFlash Flood WarningLZKClark, Cleveland, Dallas, Garland, Grant, Hot Spring and 1 more5 hr
Feb 24, 3:33 PM CSTSevere Thunderstorm WarningLZKClark, Dallas, Grant, Hot Spring42 min
Feb 24, 3:37 PM CSTFlash Flood WarningLZKBaxter, Boone, Fulton, Independence, Izard, Jackson and 5 more4 hr
Feb 24, 3:42 PM CSTFlash Flood WarningLZKIndependence, Jackson, Monroe, Prairie, White, Woodruff5 hr
Feb 24, 3:43 PM CSTSevere Thunderstorm WarningLZKCleburne, Faulkner, White47 min
Feb 24, 4:01 PM CSTFlash Flood WarningLZKCalhoun, Dallas, Ouachita6 hr
Feb 24, 4:07 PM CSTFlash Flood WarningLZKArkansas, Bradley, Calhoun, Cleveland, Dallas, Drew and 6 more6 hr
Feb 24, 4:14 PM CSTSevere Thunderstorm WarningLZKLonoke, Prairie, Pulaski46 min
Feb 24, 4:14 PM CSTSevere Thunderstorm WarningLZKCleburne, Independence, Jackson, Sharp, Stone, White and 1 more46 min
Feb 24, 4:54 PM CSTSpecial Weather StatementLZKWoodruff36 min
Feb 24, 4:59 PM CSTSevere Thunderstorm WarningLZKMonroe, Prairie, Woodruff31 min
Feb 24, 5:02 PM CSTSpecial Weather StatementLZKJackson13 min
Feb 24, 5:06 PM CSTSpecial Weather StatementLZKArkansas, Jefferson, Monroe39 min
Feb 24, 5:42 PM CSTSpecial Weather StatementLZKArkansas, Monroe48 min
Feb 24, 5:52 PM CSTSevere Thunderstorm WarningLZKArkansas, Monroe, Prairie38 min

Nearby

Flash Flood Warnings in Arkansas, 2018Every flash flood warning in 2018

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.