Alert archive / Mississippi / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 42, NWS Jackson, MS

January 29, 2008Adams County, Franklin County, Jefferson County, Mississippi; Catahoula Parish, Concordia Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Jan 29, 2008, 2:26 PM CST for Adams County, Franklin County, Jefferson County, Mississippi; Catahoula Parish, Concordia Parish, Louisiana. It was in force for 34 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: Jan 29, 2008, 2:26 PM CST (20:26 UTC)
Expired: Jan 29, 2008, 3:00 PM CST
In force: 34 min
Issued by: NWS Jackson, MS
Area: Storm-based polygon

Counties Catahoula Parish, LA, Concordia Parish, LA, Adams County, MS, Franklin County, MS, Jefferson County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.4 hours before the alert went out and 147 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 216 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 Jan 29, 10:47 AM CST, 3 hours 39 minutes earlier.

Area forecast discussion, Jan 29, 10:47 AM CST, 3 hours 39 minutes before

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Hazardous weather outlook, Jan 29, 6:13 AM CST, 8 hours 13 minutes before

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In the hours before

Special weather statement, Jan 29, 2:10 PM CST, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
210 PM CST TUE JAN 29 2008

LAZ024-026-MSZ060-292040-
CATAHOULA LA-CONCORDIA LA-ADAMS MS-
210 PM CST TUE JAN 29 2008

...STRONG THUNDERSTORM HEADED TOWARD THE MISSISSIPPI RIVER...

A STRONG THUNDERSTORM CAPABLE OF PRODUCING 40 TO 50 MPH WINDS WAS
LOCATED 17 MILES SOUTHWEST OF LARTO AT 210 PM CST...MOVING NORTHEAST
AT 55 MPH.

PEOPLE IN ADAMS COUNTY AND CATAHOULA AND CONCORDIA
PARISHES...INCLUDING THE CITIES OF FERRIDAY...LARTO...MONTEREY AND
VIDALIA...SHOULD MONITOR THIS STORM CLOSELY.

BYB

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 29, 3:41 AM CST	Wind Advisory	JAN	Attala, Bolivar, Carroll, Choctaw, Clay, Grenada and 24 more	20 hr
Jan 29, 4:16 PM CST	Severe Thunderstorm Warning	JAN	Lowndes	29 min
Jan 29, 4:56 PM CST	Severe Thunderstorm Warning	JAN	Covington, Jasper, Jefferson Davis, Jones	49 min
Jan 29, 5:18 PM CST	Severe Thunderstorm Warning	JAN	Clarke, Jasper	57 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2008 Severe Thunderstorm Warnings in Louisiana, 2008 Every severe thunderstorm warning in 2008

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.