Alert archive / Mississippi / Tornado Warnings in 1990

Tornado Warning 14, NWS Mobile, AL

July 23, 1990Harrison County, Mississippi

NWS Mobile, AL issued this tornado warning at Jul 23, 1990, 5:20 PM CDT for Harrison County, Mississippi. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jul 23, 1990, 5:20 PM CDT (22:20 UTC)
Expired
Jul 23, 1990, 6:15 PM CDT
In force
55 min
Issued by
NWS Mobile, AL
Area
Whole counties

County Harrison County, MS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.3 hours before the alert went out and 62 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 1990-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2378 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 1990-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
2378 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
651 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 232222
TORMOB
MSC047-232315-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
520 PM CDT MON JUL 23 1990
 
THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  615 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST MISSISSIPPI
 
   ...HARRISON COUNTY
 
 
 
 
MOBILE RADAR AT 515 PM CDT SHOWED A POSSIBLE TORNADO JUST NORTHEAST OF
GULFPORT MISSISSIPPI 5 MILES. THE POSSIBLE TORNADO WAS ALSO SPOTTED BY
A SHERIFF'S DEPUTY NEAR INTERSTATE 10. THE TORNADO WAS MOVING
SOUTHEAST AT 10 MPH. THE TRACK SHOULD TAKE IT NEAR BILOXI WITHIN THE
NEXT 30 MINUTES.
 
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO.  CARS ARE EASILY
TOSSbED AROUND BY TORNADO WINDS.  IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING.  IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.

Nearby

Tornado Warnings in Mississippi, 1990Every tornado warning in 1990Tornadoes in 1990

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.