Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 15, NWS Mobile, AL

January 15, 1997Perry County, Stone County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Jan 15, 1997, 5:18 PM CST for Perry County, Stone County, Mississippi. It was in force for 57 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 15, 1997, 5:18 PM CST (23:18 UTC)
Expired: Jan 15, 1997, 6:15 PM CST
In force: 57 min
Issued by: NWS Mobile, AL
Area: Whole counties

Counties Perry County, MS, Stone County, MS

The radar

The Mobile radar (KMOB), 85 km from the middle of the area, began a volume at 23:21 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jan 15, 3:00 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.3 hours before the alert went out and 102 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: 518 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 325 m²/s²
0-3 km storm-relative helicity: 288 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

692 
WUUS1 KMOB 152324
SVRMOB
MSC111-131-160015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED TO ADD TORNADO WATCH
NATIONAL WEATHER SERVICE MOBILE AL
518 PM CST WED JAN 15 1997

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHEAST MISSISSIPPI

   ...PERRY COUNTY...STONE COUNTY

AT 517 PM...NWS DOPPLER WEATHER RADAR IN MOBILE,AL INDICATED A
DEVELOPING LINE OF SEVERE THUNDERSTORMS MOVING INTO STONE AND PERRY
COUNTIES OF SOUTHEAST MISSISSIPPI. THESE STORMS WILL MOVE INTO WESTERN
STONE AND PERRY COUNTY BY 530 PM AND WILL PROGRESS EASTWARD ACROSS THE
COUNTY THROUGH 615 PM. AREAS FROM RICHTON TO BEAUMONT TO WIGGINS TO
PERKINSTON WILL BE AFFECTED BY THESE STORMS.


A TORNADO WATCH IS IN EFFECT FOR THE WARNED COUNTIES THROUGH
1100 PM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 Jan 15, 2:44 PM CST, 2 hours 34 minutes earlier.

Area forecast discussion, Jan 15, 2:44 PM CST, 2 hours 34 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MOBILE AL
243 PM CST WED JAN 15 1997

TSTMS MOVG/DEVLPG OVR SE MS ALNG PREFRONTAL TROF...XPCT THESE TO MOV
NE INTO SW AL BFR SS. DO THINK THAT THE TWO AREAS OF PCPN...ONE ALONG
PREFNTL AND OTHER ALONG FRONT WITH MERGE OVR SW AL AND ONE BIG AREA
OF PCPN WILL SWEEP EAST THIS EVENING BUT FAST ENOUGH TO STAY BLO FF
GUIDANCE. FIRST IN A SERIES OF FNTS TO MOV INTO MS FA ARND DRK AND
THRU ALL OF FA BY 09Z. STG LLVL WNDS AND WAA HAS INSTBLY TO NEAR -2
AS FNT APPROACHES. WUD XPCT A FEW STG/PSBLY SVR THIS EVE GIVEN
FAVORABLE VERT WND PROFILE...ESPECIALLY NEAR COAST...SPC HAS AREA
OTLKD AS SLGT RSK. H5 SHORT WAVE MOVES ACRS THIS EVENING AND PUSHES
FIRST OF THE FNTS THRU AND ENDS PCPN FROM WEST TO EAST OVRNITE.
PROGRESSIVELY COLDER FNTS/SURGES WILL MOVE OVR FA THRU PERIOD.SO
DRIER AND COLDER. TOMORROWS HIGHS SHUD BE BFR NOON OVER ALL BUT
EXTREME EAST AS COLDER AIR ARRIVES IN THE EAST EARLY.

MOB @44/50/25/40 7100      PNS 47/53/29/42 7100
DTS 50/55/33/45 7100      EVR 40/47/22/38 7200 11

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 15, 5:34 PM CST	Tornado Warning	MOB	Wayne	56 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1997 Every severe thunderstorm warning in 1997

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; radar from the NEXRAD Level II archive.