Alert archive / Mississippi / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 205, NWS Mobile, AL

December 13, 2001Perry County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Dec 13, 2001, 9:24 PM CST for Perry County, Mississippi. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Dec 13, 2001, 9:24 PM CST (03:24 UTC)
Expired: Dec 13, 2001, 10:00 PM CST
In force: 36 min
Issued by: NWS Mobile, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Perry County, MS

What was reported inside it

Time	Report	Where	Remark
Dec 13, 9:50 PM CST	Tornado F0	Hintonville, MS	A weak tornado briefly touched down along State Road 15 near Hintonville. The tornado did damage primarily to trees in a wooded area. No structures in the area were damaged.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 13, 8:15 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 3.4 hours before the alert went out and 123 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: 1583 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 452 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 194 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 9.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Mobile, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 13, 8:30 PM CST, 54 minutes earlier.

Area forecast discussion, Dec 13, 8:30 PM CST, 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOBILE AL
830 PM CST THU DEC 13 2001

WILL UPDATE FOR TORNADO WATCH AND ADD SEVERE WORDING.

.MOB...
AL...FFA THROUGH 4 AM FRI ALZ051>053. SCA GMZ630-650-670.
FL...SCA GMZ655-675.
MS...FFA THROUGH 4 AM FRI MSZ067-075-076.

In the hours before

Special weather statement, Dec 13, 8:32 PM CST, 52 minutes before

ALZ051>055-061>064-MSZ067-075-076-140700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
832 PM CST THU DEC 13 2001

...A TORNADO WATCH HAS BEEN ISSUED FOR PARTS OF SOUTHEAST
MISSISSIPPI AND SOUTHWEST ALABAMA UNTIL 1 AM FRIDAY MORNING...

IN SOUTHWEST ALABAMA...

    MOBILE...BALDWIN...WASHINGTON CHOCTAW CLARKE...MONROE...WILCOX.

IN SOUTHEAST MISSISSIPPI...

    WAYNE...GREENE...PERRY.

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 13, 11:47 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	28 min
Dec 14, 12:01 AM CST	Severe Thunderstorm Warning	MOB	Washington	29 min
Dec 14, 12:26 AM CST	Severe Thunderstorm Warning	MOB	Mobile	34 min
Dec 14, 12:35 AM CST	Special Marine Warning	MOB		115 min
Dec 14, 12:35 AM CST	Special Marine Warning	MOB		115 min
Dec 14, 12:35 AM CST	Special Marine Warning	MOB		115 min
Dec 14, 2:10 AM CST	Special Marine Warning	MOB		65 min
Dec 14, 2:10 AM CST	Special Marine Warning	MOB		65 min
Dec 13, 9:46 PM CST	Tornado Warning	MOB	Perry	14 min
Dec 13, 9:52 PM CST	Severe Thunderstorm Warning	MOB	Greene, Wayne	38 min
Dec 13, 10:32 PM CST	Severe Thunderstorm Warning	MOB	George, Perry, Stone	28 min
Dec 13, 10:32 PM CST	Severe Thunderstorm Warning	MOB	Greene	28 min
Dec 13, 10:56 PM CST	Severe Thunderstorm Warning	MOB	Greene, Perry	34 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2001 Every severe thunderstorm warning in 2001

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.