Alert archive / Arkansas / Flash Flood Warnings in 2019

Flash Flood Warning 12, NWS Little Rock, AR

April 7, 2019Calhoun County, Ouachita County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Apr 7, 2019, 11:05 AM CDT for Calhoun County, Ouachita 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: Apr 7, 2019, 11:05 AM CDT (16:05 UTC)
Expired: Apr 7, 2019, 2:00 PM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Calhoun County, AR, Ouachita County, AR

The radar

The Little Rock radar (KLZK), 146 km from the middle of the area, began a volume at 16:06 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

Shreveport, LA (KBAD), launched 12:00Z, 4.1 hours before the alert went out and 157 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1489 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 516 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 224 m²/s²
0-3 km storm-relative helicity: 276 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 12.0

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 Apr 7, 10:25 AM CDT, 40 minutes earlier.

Area forecast discussion, Apr 7, 10:25 AM CDT, 40 minutes before

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Hazardous weather outlook, Apr 7, 3:49 AM CDT, 7 hours 16 minutes before

Hazardous Weather Outlook
National Weather Service Little Rock AR
349 AM CDT Sun Apr 7 2019

ARZ003>008-012>017-021>025-030>034-037>047-052>057-062>069-080900-
Boone-Marion-Baxter-Fulton-Sharp-Randolph-Newton-Searcy-Stone-
Izard-Independence-Lawrence-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-
349 AM CDT Sun Apr 7 2019

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

.DAY ONE...Today through Tonight

Thunderstorms will develop today ahead of an approaching storm
system. At this time, the greatest severe potential appears to be
across southern and eastern portions of the state where large
hail and damaging winds will be the primary threats. Heavy
rainfall may lead to isolated flash flooding across the
southeastern one half of the state.

.DAYS TWO THROUGH SEVEN...Monday Through Saturday

Another round of thunderstorms and heavy rainfall will be
possible on Monday before the system moves east of the state.

The focus will shift from a severe weather threat to a flash
flooding threat as the event evolves. Widespread rainfall amounts of
two to three inches are possible across the southeast portion of
the state. Additionally, we may see increased flooding concerns
on area rivers in response to this heavy rainfall.

.Spotter Information Statement...

Spotter activation is not anticipated at this time.

&&

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

In the hours before

Local storm report, Apr 7, 8:41 AM CDT, 2 hours 24 minutes before

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Local storm report, Apr 7, 9:05 AM CDT, 2 hours before

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Special weather statement, Apr 7, 9:10 AM CDT, 1 hour 55 minutes before

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Local storm report, Apr 7, 9:36 AM CDT, 1 hour 29 minutes before

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Special weather statement, Apr 7, 10:26 AM CDT, 39 minutes before

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Local storm report, Apr 7, 10:53 AM CDT, 12 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 7:20 PM CDT	Special Weather Statement	LZK	Arkansas	25 min
Apr 7, 4:48 AM CDT	Special Weather Statement	LZK	Bradley	27 min
Apr 7, 5:00 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Drew	30 min
Apr 7, 5:03 AM CDT	Special Weather Statement	LZK	Jefferson	42 min
Apr 7, 5:11 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson, Lonoke, Prairie	17 min
Apr 7, 5:29 AM CDT	Severe Thunderstorm Warning	LZK	Desha, Drew, Lincoln	46 min
Apr 7, 5:33 AM CDT	Special Weather Statement	LZK	Jefferson	27 min
Apr 7, 7:18 AM CDT	Special Weather Statement	LZK	Bradley	42 min
Apr 7, 7:23 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Drew	52 min
Apr 7, 8:14 AM CDT	Severe Thunderstorm Warning	LZK	Bradley, Cleveland, Drew, Lincoln	46 min
Apr 7, 8:37 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Drew, Lincoln	38 min
Apr 7, 9:10 AM CDT	Flash Flood Warning	LZK	Bradley, Calhoun, Drew	3 hr
Apr 7, 9:10 AM CDT	Special Weather Statement	LZK	White	35 min
Apr 7, 9:12 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Desha, Drew, Lincoln	48 min
Apr 7, 10:26 AM CDT	Special Weather Statement	LZK	Saline	19 min
Apr 7, 10:41 AM CDT	Severe Thunderstorm Warning	LZK	Pulaski, Saline	34 min
Apr 7, 11:56 AM CDT	River Flood Warning	LZK	Calhoun, Ouachita	50 days
Apr 7, 12:44 PM CDT	Special Weather Statement	LZK	Clark, Pike	31 min
Apr 7, 1:12 PM CDT	Special Weather Statement	LZK	Garland, Hot Spring	33 min
Apr 7, 1:45 PM CDT	Flash Flood Warning	LZK	Bradley, Calhoun, Clark, Cleveland, Ouachita	2 hr
Apr 7, 1:45 PM CDT	Special Weather Statement	LZK	Pulaski, Saline	30 min
Apr 7, 2:11 PM CDT	Severe Thunderstorm Warning	LZK	Faulkner, Pulaski	22 min
Apr 7, 6:47 PM CDT	Special Weather Statement	LZK	Desha	43 min

Nearby

Flash Flood Warnings in Arkansas, 2019 Every flash flood warning in 2019

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.