Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS New Orleans, LA

July 28, 2021Pearl River County, Mississippi

NWS New Orleans, LA issued this special weather statement at Jul 28, 2021, 4:45 PM CDT for Pearl River County, Mississippi. It was in force for 30 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, 2021, 4:45 PM CDT (21:45 UTC)
Expired: Jul 28, 2021, 5:15 PM CDT
In force: 30 min
Issued by: NWS New Orleans, LA

County Pearl River County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.8 hours before the alert went out and 40 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: 2097 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 738 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 28, 3:14 PM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Jul 28, 3:14 PM CDT, 1 hour 31 minutes before

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In the hours before

Special weather statement, Jul 28, 3:40 PM CDT, 1 hour 5 minutes before

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Special weather statement, Jul 28, 3:44 PM CDT, 1 hour 1 minute before

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Special weather statement, Jul 28, 4:18 PM CDT, 27 minutes before

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Special weather statement, Jul 28, 4:45 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
Jul 27, 7:10 PM CDT	Flash Flood Warning	LIX	East Baton Rouge, West Baton Rouge	95 min
Jul 28, 1:44 PM CDT	Heat Advisory	LIX	Assumption, East Baton Rouge, East Feliciana, Iberville, Orleans, Pointe Coupee and 9 more	29 hr
Jul 28, 1:44 PM CDT	Heat Advisory	LIX	Assumption, East Baton Rouge, East Feliciana, Iberville, Orleans, Pointe Coupee and 9 more	38 hr
Jul 28, 3:44 PM CDT	Special Weather Statement	LIX	Washington	31 min
Jul 28, 4:18 PM CDT	Special Weather Statement	LIX	Washington	57 min
Jul 28, 5:32 PM CDT	Special Weather Statement	LIX	Livingston	58 min
Jul 28, 3:40 PM CDT	Special Weather Statement	LIX	Harrison	65 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.