Alert archive / Mississippi / Tornado Warnings in 1998

Tornado Warning 18, NWS Mobile, AL

April 17, 1998Greene County, Mississippi

NWS Mobile, AL issued this tornado warning at Apr 17, 1998, 7:10 PM CDT for Greene County, Mississippi. It was in force for 60 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: Apr 17, 1998, 7:10 PM CDT (00:10 UTC)
Expired: Apr 17, 1998, 8:10 PM CDT
In force: 60 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Greene County, MS

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 17, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.2 hours before the alert went out and 148 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: 624 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 311 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 4.8

Open this sounding in Storm Lab

The text

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

993 
WFUS1 KMOB 180011 RRA
TORMOB
MSC041-131-180110-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
710 PM CDT FRI APR 17 1998

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  GREENE COUNTY IN SOUTHEASTERN MISSISSIPPI
  STONE COUNTY IN SOUTHEASTERN MISSISSIPPI

* UNTIL 810 PM CDT

* AT 707 PM CDT... TWO TORNADOES WERE INDICATED BY NWS DOPPLER WEATHER
RADAR. THE FIRST TORNADO IS LOCATED NEAR POPLAR,MS. THE SECOND TORNADO
WAS LOCATED 2 MILES SOUTH OF NEW AUGUSTA.

* THE POPLAR TORNADO IS EXPECTED TO BE NEAR WIGGINS BY 730 PM CDT. THE
NEW AUGUSTA TORNADO IS EXPECTED TO BE JUST SOUTH OF BEAUMONT BY 720 PM
CDT. THE STORMS WERE MOVING EAST-NORTHEAST AT 40 MPH.

IF YOU ARE IN THE PATH OF A TORNADO...SEEK SAFETY IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...OR
CUSHIONS TO COVER YOUR BODY. STAY AWAY FROM WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 7:10 PM CDT	Tornado Warning	MOB	Stone	60 min
Apr 17, 7:43 PM CDT	Severe Thunderstorm Warning	MOB	Perry	32 min
Apr 17, 8:28 PM CDT	Severe Thunderstorm Warning	MOB	Perry	47 min
Apr 17, 8:35 PM CDT	Severe Thunderstorm Warning	MOB	Wayne	50 min
Apr 17, 8:51 PM CDT	Severe Thunderstorm Warning	MOB	Greene	49 min

Nearby

Tornado Warnings in Mississippi, 1998 Every tornado warning in 1998 Tornadoes in 1998

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.