Alert archive / Mississippi / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 386, NWS Jackson, MS

September 25, 2016Forrest County, Lamar County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Sep 25, 2016, 5:59 PM CDT for Forrest County, Lamar County, Mississippi. It was in force for 46 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: Sep 25, 2016, 5:59 PM CDT (22:59 UTC)
Expired: Sep 25, 2016, 6:45 PM CDT
In force: 46 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Forrest County, MS, Lamar County, MS

The radar

The Mobile radar (KMOB), 123 km from the middle of the area, began a volume at 23:00 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.0 hours before the alert went out and 110 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: 1671 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 973 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -46 m²/s²
0-3 km storm-relative helicity: -54 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 Sep 25, 4:12 PM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Sep 25, 4:12 PM CDT, 1 hour 47 minutes before

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Hazardous weather outlook, Sep 25, 1:57 PM CDT, 4 hours 2 minutes before

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In the hours before

Local storm report, Sep 25, 4:06 PM CDT, 1 hour 53 minutes before

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Special weather statement, Sep 25, 4:21 PM CDT, 1 hour 38 minutes before

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Special weather statement, Sep 25, 4:57 PM CDT, 1 hour 2 minutes before

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Special weather statement, Sep 25, 5:01 PM CDT, 58 minutes before

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Special weather statement, Sep 25, 5:31 PM CDT, 28 minutes before

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Special weather statement, Sep 25, 5:47 PM CDT, 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
Sep 25, 4:21 PM CDT	Special Weather Statement	JAN	Jones	24 min
Sep 25, 4:57 PM CDT	Special Weather Statement	JAN	Jones	33 min
Sep 25, 5:01 PM CDT	Special Weather Statement	JAN	Forrest	29 min
Sep 25, 5:31 PM CDT	Special Weather Statement	JAN	Forrest	29 min
Sep 25, 5:47 PM CDT	Special Weather Statement	JAN	Covington, Lamar	43 min
Sep 25, 5:54 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Jones	51 min
Sep 25, 6:02 PM CDT	Severe Thunderstorm Warning	JAN	Lamar	43 min
Sep 25, 6:35 PM CDT	Severe Thunderstorm Warning	JAN	Lamar	26 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2016 Every severe thunderstorm warning in 2016

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.