Alert archive / Mississippi / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 290, NWS Jackson, MS

June 18, 2010Scott County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 18, 2010, 4:09 PM CDT for Scott County, Mississippi. It was in force for 36 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 18, 2010, 4:09 PM CDT (21:09 UTC)
Expired: Jun 18, 2010, 4:45 PM CDT
In force: 36 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

County Scott County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 44 km from the middle of the area, began a volume at 21:12 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

Jackson, MS (KJAN), launched 12:00Z, 9.2 hours before the alert went out and 52 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: 2524 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 787 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 26 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 Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 18, 3:26 PM CDT, 43 minutes earlier.

Area forecast discussion, Jun 18, 3:26 PM CDT, 43 minutes before

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Hazardous weather outlook, Jun 18, 2:52 PM CDT, 1 hour 17 minutes before

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In the hours before

Special weather statement, Jun 18, 1:43 PM CDT, 2 hours 26 minutes before

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Special weather statement, Jun 18, 2:28 PM CDT, 1 hour 41 minutes before

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Special weather statement, Jun 18, 3:06 PM CDT, 1 hour 3 minutes before

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Special weather statement, Jun 18, 3:15 PM CDT, 54 minutes before

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Special weather statement, Jun 18, 3:34 PM CDT, 35 minutes before

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Special weather statement, Jun 18, 3:37 PM CDT, 32 minutes 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
Jun 17, 7:20 PM CDT	Severe Thunderstorm Warning	JAN	Simpson, Smith	40 min
Jun 17, 7:28 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jones, Smith	47 min
Jun 17, 7:50 PM CDT	Flash Flood Warning	JAN	Covington	72 min
Jun 18, 3:50 PM CDT	Severe Thunderstorm Warning	JAN	Smith	24 min
Jun 18, 3:59 PM CDT	Severe Thunderstorm Warning	JAN	Carroll, Montgomery	35 min
Jun 18, 5:34 PM CDT	Severe Thunderstorm Warning	JAN	Attala	41 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2010 Every severe thunderstorm warning in 2010

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.