Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS New Orleans, LA

June 28, 2021Wilkinson County, Mississippi

NWS New Orleans, LA issued this special weather statement at Jun 28, 2021, 1:36 PM CDT for Wilkinson County, Mississippi. It was in force for 24 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: Jun 28, 2021, 1:36 PM CDT (18:36 UTC)
Expired: Jun 28, 2021, 2:00 PM CDT
In force: 24 min
Issued by: NWS New Orleans, LA

County Wilkinson County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 6.6 hours before the alert went out and 161 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: 828 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 715 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

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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 New Orleans, LA wrote its last area forecast discussion before this special weather statement went out at Jun 28, 1:23 PM CDT, 13 minutes earlier.

Area forecast discussion, Jun 28, 1:23 PM CDT, 13 minutes before

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In the hours before

Special weather statement, Jun 28, 9:37 AM CDT, 3 hours 59 minutes before

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Local storm report, Jun 28, 10:46 AM CDT, 2 hours 50 minutes before

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Local storm report, Jun 28, 10:50 AM CDT, 2 hours 46 minutes before

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Special weather statement, Jun 28, 11:47 AM CDT, 1 hour 49 minutes before

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Special weather statement, Jun 28, 1:36 PM CDT, 0 minutes before

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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 27, 10:17 PM CDT	River Flood Warning	LIX	Saint Tammany	40 hr
Jun 28, 9:37 AM CDT	Special Weather Statement	LIX	Livingston	38 min
Jun 28, 10:26 AM CDT	Special Marine Warning	LIX		34 min
Jun 28, 11:47 AM CDT	Special Weather Statement	LIX	Jefferson	28 min
Jun 28, 1:33 PM CDT	Special Marine Warning	LIX		51 min

Nearby

Special Weather Statements in Mississippi, 2021 Every special weather statement in 2021

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.