Alert archive / Mississippi / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 9, NWS Mobile, AL

February 10, 1986Harrison County, Jackson County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Feb 10, 1986, 4:05 PM CST for Harrison County, Jackson County, Mississippi. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Feb 10, 1986, 4:05 PM CST (22:05 UTC)
Expired
Feb 10, 1986, 5:00 PM CST
In force
55 min
Issued by
NWS Mobile, AL
Area
Whole counties

Counties Harrison County, MS, Jackson 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

Boothville, LA (KBVE), launched 12:00Z, 10.1 hours before the alert went out and 134 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, Boothville, LA at 12:00Z on 1986-02-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 688 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Boothville, LA at 12:00Z on 1986-02-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 square meters per square second.1939587897Sfc1 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
688 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
526 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMOB 102208
SVRMOB
MSC047-059-102300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
405 PM CST MON FEB 10 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 5 PM CST FOR PERSONS IN HARRISON AND
JACKSON COUNTIES OF SOUTH MISSISSIPPI.

AT 4 PM CST RADAR AT MOBILE INDICATED A SEVERE THUNDERSTORM IN THE
PASS CHRISTIAN AND GULFPORT MISSISSIPPI AREA MOVING EAST AT 40 MILES
MPH.

MARBLE SIZE HAIL HAS BEEN REPORTED WITH THUNDERSTORM.

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.

In the hours before

Special weather statement, Feb 10, 10:47 AM CST, 5 hours 18 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1035 AM CST MON FEB 10 1986

AT 1030 AM CST...SCATTERED THUNDERSTORMS..SOME VERY HEAVY..MIXED WITH
PATCHES OF MOSTLY LIGHT RAIN WERE OVER THE FLORIDA PANHANDLE..SOUTHWEST
ALABAMA..SOUTHEAST MISSISSIPPI..AND THE ADJACENT COASTAL WATERS.
THE HEAVIER THUNDERSTORMS WERE WITHIN A 25 MILE RADIUS OF PENSACOLA..
AND AROUND MARIANNA IN JACKSON COUNTY.
THE THUNDERSTORMS WERE MOVING EAST-NORTHEAST AT 30 MILES AN HOUR.

THE HEAVIER THUNDERSTORMS WILL PRODUCE PERIODS OF HEAVY RAIN..GUSTY
WIND AROUND 45 MILES AN HOUR..FREQUENT LIGHTNING STRIKES..POSSIBLE
SMALL HAIL..FLOODING OF POOR DRAINAGE AREAS..AND ROUGH SEAS FOR BOATUERS
..PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
Special weather statement, Feb 10, 11:45 AM CST, 4 hours 20 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1135 AM CST MON FEB 10 1986

AT 1130 AM CST...SCATTERED THUNDERSTORMS..SOME VERY HEAVY..MIXED WITH
PATCHES OF MOSTLY LIGHT RAIN WERE OVER THE FLORIDA PANHANDLE..SOUTHWEST
ALABAMA..SOUTHEAST MISSISSIPPI..AND THE ADJACENT COASTAL WATERS.
THE MAIN CONCENTRATION OF THUNDERSTORMS WAS FROM ALONG THE COASTLINE
BETWEEN MOBILE BAY AND PENSACOLA..FROM AROUND PENSACOLA TO CRESTVIEW..
AND IN MISSISSIPPI BETWEEN HATTIESBURG AND MOBILE.
THE OTHER THUNDERSTORMS WERE MAINLY FROM CRESTVIEW TO EAST OF MARIANNA.
THE THUNDERSTORMS WERE MOVING EAST-NORTHEAST AT 30 MILES AN HOUR.

THE HEAVIER THUNDERSTORMS WILL PRODUCE PERIODS OF HEAVY RAIN..GUSTY
WIND AROUND 45 MILES AN HOUR..FREQUENT LIGHTNING STRIKES..POSSIBLE
SMALL HAIL..FLOODING OF POOR DRAINAGE AREAS..AND ROUGH SEAS FOR BOATERS
..PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
Special weather statement, Feb 10, 12:43 PM CST, 3 hours 22 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE PENSACOLA FL
1235 PM CST MON FEB 10 1986

AT 1230 PM CST...SCATTERED THUNDERSTORMS..SOME VERY HEAVY..MIXED WITH
PATCHES OF RAIN WERE OVER THE FLORIDA PANHANDLE..SOUTHERN ALABAMA..
SOUTHEAST MISSISSIPPI..AND THE ADJACENT COASTAL WATERS.
THE MAIN CONCENTRATION OF THUNDERSTORMS WAS OVER THE WESTERN 75 MILES
OF THE FLORIDA PANHANDLE..AND BETWEEN MOBILE AND MARIDIAN.
THE THUNDERSTORMS WERE MOVING EAST-NORTHEAST AT 30 MILES AN HOUR.

THE HEAVIER THUNDERSTORMS WILL PRODUCE PERIODS OF HEAVY RAIN..GUSTY
WIND AROUND 45 MILES AN HOUR..FREQUENT LIGHTNING STRIKES..POSSIBLE
SMALL HAIL..FLOODING OF POOR DRAINAGE AREAS..AND ROUGH SEAS FQOR BOATERS
..PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS
AND KEEP ABREAST OF THE WEATHER DEVELOPMENT DURING THE NEXT SEVERAL
HOURS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 10, 10:55 AM CSTSevere Thunderstorm WarningMOBForrest, Perry35 min
Feb 10, 11:15 AM CSTTornado WarningMOBGreene, Perry45 min
Feb 10, 11:35 AM CSTSevere Thunderstorm WarningMOBGeorge, Perry, Stone40 min
Feb 10, 5:05 PM CSTTornado WarningMOBJackson25 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1986Every severe thunderstorm warning in 1986

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.