Alert archive / Mississippi / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 375, NWS Jackson, MS

July 22, 2013Carroll County, Holmes County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 22, 2013, 7:12 PM CDT for Carroll County, Holmes County, Mississippi. It was in force for 63 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 22, 2013, 7:12 PM CDT (00:12 UTC)
Expired: Jul 22, 2013, 8:15 PM CDT
In force: 63 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Carroll County, MS, Holmes County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 112 km from the middle of the area, began a volume at 00:14 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

Little Rock, AR (KBYH), launched 00:00Z, 0.2 hours before the alert went out and 172 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: 2596 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1203 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.5

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 Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 22, 3:22 PM CDT, 3 hours 50 minutes earlier.

Area forecast discussion, Jul 22, 3:22 PM CDT, 3 hours 50 minutes before

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Hazardous weather outlook, Jul 22, 12:51 PM CDT, 6 hours 21 minutes before

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In the hours before

Special weather statement, Jul 22, 4:10 PM CDT, 3 hours 2 minutes before

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Special weather statement, Jul 22, 4:27 PM CDT, 2 hours 45 minutes before

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Special weather statement, Jul 22, 4:43 PM CDT, 2 hours 29 minutes before

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Special weather statement, Jul 22, 5:07 PM CDT, 2 hours 5 minutes before

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Special weather statement, Jul 22, 6:27 PM CDT, 45 minutes before

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Special weather statement, Jul 22, 7:11 PM CDT, 1 minute before

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The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 22, 7:11 PM CDT	Special Weather Statement	JAN	Neshoba	44 min
Jul 22, 7:16 PM CDT	Severe Thunderstorm Warning	JAN	Neshoba	44 min
Jul 22, 8:09 PM CDT	Special Weather Statement	JAN	Neshoba	31 min
Jul 23, 11:02 AM CDT	Special Weather Statement	JAN	Clay, Grenada, Lowndes, Montgomery, Oktibbeha, Webster	73 min
Jul 23, 12:18 PM CDT	Special Weather Statement	JAN	Carroll, Choctaw, Holmes, Leflore, Lowndes, Montgomery and 4 more	72 min
Jul 23, 12:37 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Choctaw, Noxubee, Oktibbeha, Winston	53 min
Jul 23, 1:15 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Neshoba	60 min
Jul 23, 1:24 PM CDT	Severe Thunderstorm Warning	JAN	Noxubee, Winston	21 min
Jul 23, 1:57 PM CDT	Severe Thunderstorm Warning	JAN	Lauderdale	78 min
Jul 23, 2:39 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	66 min
Jul 23, 2:54 PM CDT	Flash Flood Warning	JAN	Lauderdale	2 hr
Jul 23, 3:50 PM CDT	Special Weather Statement	JAN	Clarke	30 min

Nearby

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.