Alert archive / Arkansas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 265, NWS Little Rock, AR

July 15, 2018Independence County, Jackson County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 15, 2018, 3:50 PM CDT for Independence County, Jackson County, Arkansas. It was in force for 25 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 15, 2018, 3:50 PM CDT (20:50 UTC)
Expired: Jul 15, 2018, 4:15 PM CDT
In force: 25 min
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Independence County, AR, Jackson County, AR

The radar

The Little Rock radar (KLZK), 122 km from the middle of the area, began a volume at 20:50 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

Little Rock, AR (KBYH), launched 12:00Z, 8.8 hours before the alert went out and 161 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: 915 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 1432 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -30 m²/s²
0-3 km storm-relative helicity: -15 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 15, 2:29 PM CDT, 1 hour 21 minutes earlier.

Area forecast discussion, Jul 15, 2:29 PM CDT, 1 hour 21 minutes before

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Hazardous weather outlook, Jul 15, 4:33 AM CDT, 11 hours 17 minutes before

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In the hours before

Special weather statement, Jul 15, 1:05 PM CDT, 2 hours 45 minutes before

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Special weather statement, Jul 15, 2:20 PM CDT, 1 hour 30 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 15, 3:33 AM CDT	Heat Advisory	LZK	Arkansas, Bradley, Calhoun, Clark, Cleveland, Conway and 21 more	15 hr
Jul 15, 1:05 PM CDT	Special Weather Statement	LZK	Searcy	25 min
Jul 15, 2:20 PM CDT	Special Weather Statement	LZK	Marion	25 min
Jul 15, 3:57 PM CDT	Special Weather Statement	LZK	Fulton	33 min
Jul 15, 4:56 PM CDT	Special Weather Statement	LZK	Jackson	34 min
Jul 15, 5:01 PM CDT	Severe Thunderstorm Warning	LZK	Jackson	29 min
Jul 15, 5:36 PM CDT	Special Weather Statement	LZK	Yell	24 min
Jul 15, 5:41 PM CDT	Special Weather Statement	LZK	Woodruff	34 min
Jul 15, 5:49 PM CDT	Special Weather Statement	LZK	Scott	26 min
Jul 15, 5:59 PM CDT	Special Weather Statement	LZK	Logan	46 min
Jul 15, 6:42 PM CDT	Special Weather Statement	LZK	Faulkner	33 min
Jul 15, 6:54 PM CDT	Special Weather Statement	LZK	Saline	36 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2018 Every severe thunderstorm warning in 2018

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.