Alert archive / Mississippi / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 93, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Nov 11, 1986, 4:00 AM CST for Hancock County, Pearl River County, Mississippi. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Nov 11, 1986, 4:00 AM CST (10:00 UTC)
- Expired
- Nov 11, 1986, 5:00 AM CST
- In force
- 60 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
Counties Hancock County, MS, Pearl River 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 00:00Z, 10.0 hours before the alert went out and 140 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.
- Mixed-layer CAPE
- 951 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 512 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 111000 SVRMOB MSC109-045-101100- BULLETIN..IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 400 AM CST TUE NOV 11 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 AM CST FOR PERSONS IN THE FOLLOWING COUNTIES IN SOUTHEAST MISSISSIPPI...PEARL-RIVER HANCOCK AT 355 AM NATIONAL WEATHER SERVICE RADARS INDICATED A SHORT LINE OF SEVERE THUNDERSTORMS ALONG THE PEARL RIVER FROM 8 MILES NORTHWEST OF PICAYUNE SOUTH TO THE NORTH SHORE OF LAKE BORGNE. THE LINE WAS MOVING TOWARD THE EAST AT 25 MPH. THE LINE WILL PRODUCE DAMAGING WINDS AND POSSIBLY SOME LARGE HAIL AS IT CONTINUES EASTWARD.
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, Nov 11, 2:38 AM CST, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
240 AM CST TUE NOV 11 1986
...VERY HEAVY THUNDERSTORMS INCREASING OVER SOUTHEAST MISSISSIPPI...
AT 235 AM THE MOBILE RADAR INDICATED AN AREA OF THUNDERSTORMS OVER
SOUTHEAST MISSISSIPPI. THE STRONGEST THUNDERSTORMS WERE LOCATED FROM
JUST SOUTH OF BROOKLYN IN FORREST COUNTY TO 10 MILES SOUTH OF POPLARVILLE
IN PEARL-RIVER COUNTY. THE STORMS WERE MOVING TOWARD THE NORTHEAST
AT 30 MPH.
THESE THUNDERSTORMS MAY PRODUCE STRONG GUSTY WINDS...BLINDING RAINFALL
THAT WILL FLOOD ROADS AND LOW AREAS...AND POSSIBLY SOME HAIL.
OTHER STRONG THUNDERSTORMS NORTH OF LAKE PONCHARTRAIN IN LOUISIANA
MAY MOVE INTO LAMAR AND PEARL-RIV{ER COUNTIES LATER THIS MORNING.
RESIDENTS OF THE AREA SHOULD BE ALERT FOR THE APPROACH OF THESE
THUNDERSTORMS.The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 11, 3:10 AM CST | Severe Thunderstorm Warning | MOB | Stone | 60 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.