Alert archive / Arkansas / Flash Flood Warnings in 2009

Flash Flood Warning 17, NWS Little Rock, AR

May 3, 200910 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at May 3, 2009, 1:20 AM CDT for 10 counties in Arkansas. It was in force for 4 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: May 3, 2009, 1:20 AM CDT (06:20 UTC)
Expired: May 3, 2009, 5:15 AM CDT
In force: 4 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Dallas County, AR, Desha County, AR, Drew County, AR, Lincoln County, AR, Ouachita County, AR, Pike County, AR

The radar

The Little Rock radar (KLZK), 115 km from the middle of the area, began a volume at 06:23 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 (KSHV), launched 00:00Z, 6.3 hours before the alert went out and 194 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: 1069 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1182 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 230 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 10.6

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 May 2, 5:41 PM CDT, 7 hours 39 minutes earlier.

Area forecast discussion, May 2, 5:41 PM CDT, 7 hours 39 minutes before

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Hazardous weather outlook, May 2, 12:45 PM CDT, 12 hours 35 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
May 2, 7:08 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	67 min
May 2, 7:21 PM CDT	Flash Flood Warning	LZK	Arkansas, Bradley, Desha, Drew, Lincoln	6 hr
May 2, 7:50 PM CDT	River Flood Warning	LZK	Conway, Perry	8 days
May 2, 7:50 PM CDT	River Flood Warning	LZK	Faulkner, Perry	13 hr
May 2, 7:52 PM CDT	River Flood Warning	LZK	Yell	8 days
May 2, 7:52 PM CDT	River Flood Warning	LZK	Perry	19 days
May 2, 9:45 PM CDT	River Flood Warning	LZK	Clark, Hot Spring	48 hr
May 2, 9:45 PM CDT	River Flood Warning	LZK	Calhoun, Ouachita	31 days
May 2, 9:50 PM CDT	River Flood Warning	LZK	Saline	33 hr
May 3, 5:16 AM CDT	Flash Flood Warning	LZK	Bradley, Calhoun, Cleveland, Desha, Drew, Lincoln and 1 more	4 hr
May 3, 9:19 AM CDT	River Flood Advisory	LZK	Franklin, Johnson, Logan	22 hr
May 3, 9:19 AM CDT	River Flood Advisory	LZK	Pope, Yell	22 hr
May 3, 9:19 AM CDT	River Flood Advisory	LZK	Faulkner, Perry	22 hr
May 3, 9:19 AM CDT	River Flood Advisory	LZK	Pulaski	22 hr
May 3, 9:19 AM CDT	River Flood Advisory	LZK	Jefferson, Lincoln	22 hr
May 3, 9:19 AM CDT	River Flood Advisory	LZK	Arkansas, Desha, Lincoln	22 hr
May 3, 9:19 AM CDT	River Flood Advisory	LZK	Yell	22 hr
May 3, 9:35 AM CDT	Flash Flood Warning	LZK	Bradley, Calhoun, Clark, Cleveland, Dallas, Desha and 3 more	5 hr
May 3, 11:10 AM CDT	River Flood Advisory	LZK	Independence, Jackson	36 hr
May 3, 11:10 AM CDT	River Flood Advisory	LZK	Prairie, White, Woodruff	36 hr
May 3, 12:17 PM CDT	River Flood Warning	LZK	Bradley, Calhoun, Union	44 days

Nearby

Flash Flood Warnings in Arkansas, 2009 Every 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.