Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

October 14, 2012Bolivar County, Mississippi

NWS Jackson, MS issued this special weather statement at Oct 14, 2012, 6:44 AM CDT for Bolivar County, Mississippi. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 14, 2012, 6:44 AM CDT (11:44 UTC)
Expired: Oct 14, 2012, 7:15 AM CDT
In force: 31 min
Issued by: NWS Jackson, MS

County Bolivar County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 171 km from the middle of the area, began a volume at 11:45 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 (KLZK), launched 00:00Z, 11.7 hours before the alert went out and 143 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: 34 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 1039 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 146 m²/s²
0-3 km storm-relative helicity: 187 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Oct 14, 4:20 AM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, Oct 14, 4:20 AM CDT, 2 hours 24 minutes before

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Hazardous weather outlook, Oct 14, 5:32 AM CDT, 1 hour 12 minutes before

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In the hours before

Special weather statement, Oct 14, 5:58 AM CDT, 46 minutes before

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Special weather statement, Oct 14, 6:44 AM CDT, 0 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
Oct 14, 3:26 AM CDT	Wind Advisory	JAN	Bolivar, Sunflower, Washington	13 hr
Oct 14, 5:58 AM CDT	Special Weather Statement	JAN	Bolivar	62 min
Oct 14, 5:38 PM CDT	Special Weather Statement	JAN	Washington	57 min

Nearby

Special Weather Statements in Mississippi, 2012 Every special weather statement in 2012

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.