Alert archive / Arkansas / Flash Flood Warnings in 2009

Flash Flood Warning 55, NWS Little Rock, AR

July 12, 2009Fulton County, Sharp County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 12, 2009, 2:11 AM CDT for Fulton County, Sharp 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 12, 2009, 2:11 AM CDT (07:11 UTC)
Expired: Jul 12, 2009, 5:00 AM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Fulton County, AR, Sharp County, AR

The radar

The Little Rock radar (KLZK), 169 km from the middle of the area, began a volume at 07:14 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, 7.2 hours before the alert went out and 204 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: 1460 J/kg
Mixed-layer CIN: -90 J/kg
Mixed-layer LCL: 1555 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 9.0

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 12, 12:44 AM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Jul 12, 12:44 AM CDT, 1 hour 27 minutes before

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Hazardous weather outlook, Jul 11, 10:20 PM CDT, 3 hours 51 minutes before

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In the hours before

Local storm report, Jul 11, 11:42 PM CDT, 2 hours 29 minutes before

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Local storm report, Jul 12, 12:31 AM CDT, 1 hour 40 minutes before

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Local storm report, Jul 12, 12:45 AM CDT, 1 hour 26 minutes before

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Special weather statement, Jul 12, 1:30 AM CDT, 41 minutes before

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Special weather statement, Jul 12, 2:10 AM CDT, 1 minute 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
Jul 11, 10:10 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	50 min
Jul 11, 10:56 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	49 min
Jul 11, 11:26 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	49 min
Jul 11, 11:46 PM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	44 min
Jul 12, 12:12 AM CDT	Severe Thunderstorm Warning	LZK	Independence, Jackson, Sharp	63 min
Jul 12, 12:13 AM CDT	Severe Thunderstorm Warning	LZK	Fulton, Izard, Sharp	47 min
Jul 12, 12:38 AM CDT	Severe Thunderstorm Warning	LZK	Fulton, Izard, Sharp	37 min
Jul 12, 12:55 AM CDT	Severe Thunderstorm Warning	LZK	Independence, Izard, Jackson, Sharp	35 min
Jul 12, 1:08 AM CDT	Severe Thunderstorm Warning	LZK	Independence, Jackson, White, Woodruff	67 min
Jul 12, 1:39 AM CDT	Severe Thunderstorm Warning	LZK	Fulton, Sharp	25 min
Jul 12, 1:55 AM CDT	Severe Thunderstorm Warning	LZK	Monroe, Prairie, White, Woodruff	50 min
Jul 12, 3:43 AM CDT	Heat Advisory	LZK	Arkansas, Bradley, Calhoun, Clark, Cleveland, Conway and 20 more	4 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.