Alert archive / Arkansas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 366, NWS Little Rock, AR

August 9, 2013Izard County, Stone County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Aug 9, 2013, 4:21 PM CDT for Izard County, Stone County, Arkansas. It was in force for 24 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: Aug 9, 2013, 4:21 PM CDT (21:21 UTC)
Expired: Aug 9, 2013, 4:45 PM CDT
In force: 24 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon

Counties Izard County, AR, Stone County, AR

The radar

The Little Rock radar (KLZK), 129 km from the middle of the area, began a volume at 21:21 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 12:00Z, 9.4 hours before the alert went out and 188 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: 699 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 574 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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 Aug 9, 2:55 PM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, Aug 9, 2:55 PM CDT, 1 hour 26 minutes before

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Hazardous weather outlook, Aug 9, 1:15 PM CDT, 3 hours 6 minutes before

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In the hours before

Special weather statement, Aug 9, 2:49 PM CDT, 1 hour 32 minutes before

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Special weather statement, Aug 9, 4:01 PM CDT, 20 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
Aug 8, 7:06 PM CDT	Special Weather Statement	LZK	Johnson	44 min
Aug 8, 7:11 PM CDT	Special Weather Statement	LZK	Stone	29 min
Aug 8, 7:15 PM CDT	Special Weather Statement	LZK	Newton	25 min
Aug 8, 7:19 PM CDT	Severe Thunderstorm Warning	LZK	Johnson, Logan	41 min
Aug 8, 7:21 PM CDT	Special Weather Statement	LZK	Cleburne	29 min
Aug 8, 7:45 PM CDT	Special Weather Statement	LZK	Newton	30 min
Aug 8, 7:47 PM CDT	Special Weather Statement	LZK	Cleburne	28 min
Aug 8, 8:01 PM CDT	Special Weather Statement	LZK	Johnson	44 min
Aug 8, 8:13 PM CDT	Special Weather Statement	LZK	Pope	42 min
Aug 8, 8:17 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne, Independence, Stone	43 min
Aug 8, 8:24 PM CDT	Special Weather Statement	LZK	Scott	46 min
Aug 8, 8:27 PM CDT	River Flood Advisory	LZK	White, Woodruff	36 hr
Aug 8, 8:39 PM CDT	Severe Thunderstorm Warning	LZK	Scott	36 min
Aug 8, 8:44 PM CDT	Special Weather Statement	LZK	Cleburne	46 min
Aug 8, 9:17 PM CDT	Special Weather Statement	LZK	Yell	28 min
Aug 8, 9:26 PM CDT	Special Weather Statement	LZK	Independence, Jackson	44 min
Aug 8, 9:43 PM CDT	Flash Flood Warning	LZK	Cleburne, Conway, Independence, Jackson, Pope, Van Buren and 1 more	3 hr
Aug 8, 10:10 PM CDT	Special Weather Statement	LZK	Jackson	30 min
Aug 8, 10:11 PM CDT	Special Weather Statement	LZK	Polk	44 min
Aug 8, 10:21 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk, Scott	24 min
Aug 8, 11:28 PM CDT	Flash Flood Warning	LZK	Lonoke, Prairie, White, Woodruff	2 hr
Aug 9, 10:17 AM CDT	River Flood Warning	LZK	Randolph	6 days
Aug 9, 2:49 PM CDT	Special Weather Statement	LZK	Newton	31 min
Aug 9, 2:56 PM CDT	Severe Thunderstorm Warning	LZK	Boone, Newton	49 min
Aug 9, 3:45 PM CDT	Severe Thunderstorm Warning	LZK	Baxter, Izard, Stone	30 min
Aug 9, 4:01 PM CDT	Special Weather Statement	LZK	Searcy	29 min
Aug 9, 4:12 PM CDT	Severe Thunderstorm Warning	LZK	Searcy	33 min
Aug 9, 4:43 PM CDT	Severe Thunderstorm Warning	LZK	Searcy, Stone	47 min
Aug 9, 4:46 PM CDT	Severe Thunderstorm Warning	LZK	Izard	29 min
Aug 9, 5:20 PM CDT	Severe Thunderstorm Warning	LZK	Independence, Izard, Stone	25 min
Aug 9, 5:51 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Scott	24 min
Aug 9, 6:15 PM CDT	Special Weather Statement	LZK	Scott	45 min
Aug 9, 6:56 PM CDT	Severe Thunderstorm Warning	LZK	Perry	34 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2013 Every severe thunderstorm warning in 2013

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.