Alert archive / Arkansas / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 142, NWS Memphis, TN

June 28, 2013Tunica County, Mississippi; Lee County, St. Francis County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Jun 28, 2013, 9:48 AM CDT for Tunica County, Mississippi; Lee County, St. Francis County, Arkansas. It was in force for 42 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: Jun 28, 2013, 9:48 AM CDT (14:48 UTC)
Expired: Jun 28, 2013, 10:30 AM CDT
In force: 42 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

Counties Lee County, AR, St. Francis County, AR, Tunica County, MS

The radar

The Memphis radar (KNQA), 91 km from the middle of the area, began a volume at 14:47 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
Jun 28, 5:18 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 2.8 hours before the alert went out and 63 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: 4171 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 1220 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.3

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 28, 6:40 AM CDT, 3 hours 8 minutes earlier.

Area forecast discussion, Jun 28, 6:40 AM CDT, 3 hours 8 minutes before

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Hazardous weather outlook, Jun 28, 8:37 AM CDT, 1 hour 11 minutes before

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In the hours before

Local storm report, Jun 28, 7:17 AM CDT, 2 hours 31 minutes before

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Special weather statement, Jun 28, 7:28 AM CDT, 2 hours 20 minutes before

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Special weather statement, Jun 28, 7:56 AM CDT, 1 hour 52 minutes before

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Local storm report, Jun 28, 8:00 AM CDT, 1 hour 48 minutes before

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Special weather statement, Jun 28, 9:06 AM CDT, 42 minutes before

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Local storm report, Jun 28, 9:32 AM CDT, 16 minutes before

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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 28, 4:55 AM CDT	Special Weather Statement	MEG	Dyer	50 min
Jun 28, 5:03 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale	42 min
Jun 28, 5:24 AM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Fayette, Haywood, Lauderdale, Madison and 2 more	51 min
Jun 28, 6:07 AM CDT	Severe Thunderstorm Warning	MEG	Fayette, Shelby, Tipton	38 min
Jun 27, 7:16 PM CDT	Severe Thunderstorm Warning	MEG	Tate	44 min
Jun 27, 7:52 PM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Panola, Tate	38 min
Jun 28, 7:28 AM CDT	Special Weather Statement	MEG	DeSoto, Tate	47 min
Jun 28, 7:56 AM CDT	Special Weather Statement	MEG	Lafayette, Tate	34 min
Jun 28, 10:31 AM CDT	Severe Thunderstorm Warning	MEG	Tunica	44 min
Jun 28, 11:15 AM CDT	Severe Thunderstorm Warning	MEG	Tunica	45 min
Jun 28, 11:24 AM CDT	Severe Thunderstorm Warning	MEG	Lafayette, Marshall	51 min
Jun 28, 11:37 AM CDT	Severe Thunderstorm Warning	MEG	Pontotoc, Union	53 min
Jun 28, 9:06 AM CDT	Special Weather Statement	MEG	Lee, St. Francis	24 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2013 Severe Thunderstorm Warnings in Mississippi, 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.