Alert archive / Arkansas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 413, NWS Little Rock, AR

July 16, 20096 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 16, 2009, 4:16 PM CDT for 6 counties in Arkansas. It was in force for 59 min. 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 16, 2009, 4:16 PM CDT (21:16 UTC)
Expired: Jul 16, 2009, 5:15 PM CDT
In force: 59 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Clark County, AR, Dallas County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Saline County, AR

The radar

The Little Rock radar (KLZK), 79 km from the middle of the area, began a volume at 21:18 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 16, 3:33 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 9.3 hours before the alert went out and 271 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: 2319 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 995 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 16, 2:46 PM CDT, 1 hour 30 minutes earlier.

Area forecast discussion, Jul 16, 2:46 PM CDT, 1 hour 30 minutes before

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Hazardous weather outlook, Jul 16, 1:30 PM CDT, 2 hours 46 minutes before

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In the hours before

Local storm report, Jul 16, 11:01 AM CDT, 5 hours 15 minutes before

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Local storm report, Jul 16, 11:26 AM CDT, 4 hours 50 minutes before

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Special weather statement, Jul 16, 1:56 PM CDT, 2 hours 20 minutes before

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Special weather statement, Jul 16, 1:58 PM CDT, 2 hours 18 minutes before

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Special weather statement, Jul 16, 2:24 PM CDT, 1 hour 52 minutes before

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Local storm report, Jul 16, 4:07 PM CDT, 9 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
Jul 16, 1:04 AM CDT	Severe Thunderstorm Warning	LZK	Boone	41 min
Jul 16, 1:10 AM CDT	Severe Thunderstorm Warning	LZK	Searcy, Stone, Van Buren	50 min
Jul 16, 1:26 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion	64 min
Jul 16, 1:35 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Searcy, Stone	40 min
Jul 16, 1:45 AM CDT	Severe Thunderstorm Warning	LZK	Boone	60 min
Jul 16, 2:00 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Fulton, Izard	60 min
Jul 16, 2:06 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Izard, Stone	54 min
Jul 16, 2:14 AM CDT	Flash Flood Warning	LZK	Boone, Marion	4 hr
Jul 16, 2:33 AM CDT	Flash Flood Warning	LZK	Baxter, Marion	4 hr
Jul 16, 2:45 AM CDT	Severe Thunderstorm Warning	LZK	Baxter, Marion, Searcy	45 min
Jul 16, 4:00 AM CDT	Heat Advisory	LZK	Arkansas, Bradley, Calhoun, Clark, Cleveland, Dallas and 14 more	14 hr
Jul 16, 2:35 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Saline	40 min
Jul 16, 2:53 PM CDT	Severe Thunderstorm Warning	LZK	Scott, Yell	67 min
Jul 16, 3:00 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring, Montgomery, Pike	45 min
Jul 16, 3:13 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Hot Spring	47 min
Jul 16, 3:19 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk, Scott	41 min
Jul 16, 3:43 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Garland, Hot Spring, Montgomery, Pike	47 min
Jul 16, 4:07 PM CDT	Flash Flood Warning	LZK	Clark, Garland, Hot Spring, Montgomery, Pike, Polk and 2 more	4 hr
Jul 16, 4:16 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk, Scott	44 min
Jul 16, 4:31 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Scott, Yell	31 min
Jul 16, 4:37 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Pike, Polk	38 min
Jul 16, 4:53 PM CDT	Severe Thunderstorm Warning	LZK	Conway, Perry, Pope, Yell	37 min
Jul 16, 4:59 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Pike	46 min
Jul 16, 5:15 PM CDT	Severe Thunderstorm Warning	LZK	Clark, Dallas	45 min
Jul 16, 5:54 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Clark, Cleveland, Dallas, Ouachita	51 min
Jul 16, 6:04 PM CDT	Flash Flood Warning	LZK	Clark, Dallas, Pike	3 hr
Jul 16, 6:13 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Boone, Marion	62 min
Jul 16, 6:29 PM CDT	Severe Thunderstorm Warning	LZK	Cleveland, Dallas, Grant, Jefferson, Lincoln	61 min
Jul 16, 6:44 PM CDT	Severe Thunderstorm Warning	LZK	Bradley, Calhoun, Cleveland, Dallas	61 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2009 Every severe thunderstorm 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.