Alert archive / Alabama / Tornado Warnings in 1998

Tornado Warning 10, NWS Mobile, AL

April 17, 1998Washington County, Alabama

NWS Mobile, AL issued this tornado warning at Apr 17, 1998, 5:29 PM CDT for Washington County, Alabama. It was in force for 61 min. 2 reports 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: Apr 17, 1998, 5:29 PM CDT (22:29 UTC)
Expired: Apr 17, 1998, 6:30 PM CDT
In force: 61 min
Issued by: NWS Mobile, AL
Area: Whole counties

County Washington County, AL

What was reported inside it

Time	Report	Where	Remark
Apr 17, 5:45 PM CDT	Thunderstorm Wind 80	Deer Park, AL
Apr 17, 5:45 PM CDT	Hail 2.75	Deer Park, AL

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 nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.5 hours before the alert went out and 192 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: 1365 J/kg
Mixed-layer CIN: -125 J/kg
Mixed-layer LCL: 613 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

483 
WFUS1 KMOB 172230 RRA
TORMOB
ALC129-172330-

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

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  WASHINGTON COUNTY IN SOUTHWESTERN ALABAMA

* UNTIL 630 PM CDT

* AT 526 PM CDT... A TORNADO WAS INDICATED BY NWS DOPPLER RADAR OVER
CENTRAL GREENE COUNTY...ABOUT 5 MILES EAST-NORTHEAST OF NEELY,MS. THE
STORM WAS MOVING EAST AT 40 MPH. THE TORNADO WILL MOVE BETWEEN DEER
PARK AND TIBBIE BETWEEN 545 PM AND 6 PM CDT.

* THE TORNADO IS EXPECTED TO BE NEAR TIBBIE BY 6PM CDT.

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, 4:45 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	65 min
Apr 17, 4:54 PM CDT	Severe Thunderstorm Warning	MOB	Covington	66 min
Apr 17, 5:25 PM CDT	Tornado Warning	MOB	Covington	60 min
Apr 17, 6:02 PM CDT	Tornado Warning	MOB	Clarke	63 min
Apr 17, 6:17 PM CDT	Tornado Warning	MOB	Washington	48 min
Apr 17, 6:21 PM CDT	Tornado Warning	MOB	Baldwin, Monroe	64 min
Apr 17, 6:25 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	60 min
Apr 17, 6:49 PM CDT	Tornado Warning	MOB	Conecuh	61 min
Apr 17, 6:58 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	62 min

Nearby

Tornado Warnings in Alabama, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.