Alert archive / Mississippi / Special Weather Statements in 2012

Special Weather Statement, NWS Jackson, MS

July 28, 2012Adams County, Mississippi

NWS Jackson, MS issued this special weather statement at Jul 28, 2012, 9:26 AM CDT for Adams County, Mississippi. It was in force for 39 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: Jul 28, 2012, 9:26 AM CDT (14:26 UTC)
Expired: Jul 28, 2012, 10:05 AM CDT
In force: 39 min
Issued by: NWS Jackson, MS

County Adams County, MS

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.4 hours before the alert went out and 228 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: 2198 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 806 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: -3 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.2

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 Jul 28, 3:56 AM CDT, 5 hours 30 minutes earlier.

Area forecast discussion, Jul 28, 3:56 AM CDT, 5 hours 30 minutes before

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Hazardous weather outlook, Jul 28, 4:37 AM CDT, 4 hours 49 minutes before

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In the hours before

Special weather statement, Jul 28, 7:04 AM CDT, 2 hours 22 minutes before

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Special weather statement, Jul 28, 9:26 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
Jul 27, 7:33 PM CDT	Special Weather Statement	JAN	Lowndes	27 min
Jul 27, 9:01 PM CDT	Special Weather Statement	JAN	Lowndes	29 min
Jul 28, 7:04 AM CDT	Special Weather Statement	JAN	Adams, Covington, Forrest, Franklin, Jefferson Davis, Lamar and 3 more	56 min
Jul 28, 8:25 AM CDT	Flash Flood Warning	JAN	Adams, Franklin, Jefferson	3 hr
Jul 28, 4:59 PM CDT	Special Weather Statement	JAN	Carroll	26 min
Jul 28, 3:34 PM CDT	Special Weather Statement	JAN	Morehouse	46 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.