Alert archive / Mississippi / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 308, NWS Jackson, MS

June 17, 20134 counties in Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 17, 2013, 1:49 PM CDT for 4 counties in Mississippi. It was in force for 56 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 17, 2013, 1:49 PM CDT (18:49 UTC)
Expired: Jun 17, 2013, 2:45 PM CDT
In force: 56 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Kemper County, MS, Lauderdale County, MS, Neshoba County, MS, Newton County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 108 km from the middle of the area, began a volume at 18:52 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

Birmingham, AL (KBMX), launched 12:00Z, 6.8 hours before the alert went out and 208 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: 2029 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 590 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 2.4

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 17, 10:56 AM CDT, 2 hours 53 minutes earlier.

Area forecast discussion, Jun 17, 10:56 AM CDT, 2 hours 53 minutes before

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Hazardous weather outlook, Jun 17, 4:31 AM CDT, 9 hours 18 minutes before

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In the hours before

Special weather statement, Jun 17, 12:37 PM CDT, 1 hour 12 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, 6:13 AM CDT	Special Weather Statement	JAN	Leflore	42 min
Jun 17, 12:37 PM CDT	Special Weather Statement	JAN	Leake	28 min
Jun 17, 3:02 PM CDT	Special Weather Statement	JAN	Lowndes	28 min
Jun 17, 3:44 PM CDT	Special Weather Statement	JAN	Lowndes	31 min
Jun 17, 4:02 PM CDT	Special Weather Statement	JAN	Grenada	28 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.