Alert archive / Mississippi / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 68, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Jul 30, 1986, 6:40 PM CDT for Jackson County, Mississippi. It was in force for 65 min.
The area
The counties it named.
The facts
- Issued
- Jul 30, 1986, 6:40 PM CDT (23:40 UTC)
- Expired
- Jul 30, 1986, 7:45 PM CDT
- In force
- 65 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County 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, 11.7 hours before the alert went out and 147 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
- 1484 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 875 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 302340 SVRMOB ALC097-003-MSC059-310045- BULLETIN..IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MOBILE AL 640 PM CDT WED JUL 30 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING FOR THE FOLLOWING COUNTIES AND ADJACENT COASTAL WATERS UNTIL 745 PM CDT. IN SOUTHWEST ALABAMA: MOBILE AND BALDWIN. IN SOUTHEAST MISSISSIPPI: JACKSON AT 630 PM CDT R ADAR SHOWED SEVERE THUNDERSTORMS NEAR LUCEDALE MISSISSIPPI...CITY OF MOBILE AND OVER NORTH MOBILE BAY...MOVING SOUTH 15 MPH. WINDS IN EXCESS OF 55 MPH CAN BE EXPECTED WITH THESE STORMS. MOVE TO A PLACE OF SAFETY.
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, Jul 30, 3:39 PM CDT, 3 hours 1 minute before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE PENSACOLA FL 335 PM CDT WED JUL 30 1986 AT 330 PM CDT...THUNDERSTORMS..A FEW HEAVY..WERE SCATTERED OVER THE FLORIDA PANHANDLE FROM FORT WALTON ALONG THE COAST TO AROUND APALACHI- COLA. THE THUNDERSTORMS WERE DEVELOPING AND MOVING SOUTH AT 10 MILES AN HOUR. EXTREMELY HEAVY THUNDERSTORMS WERE IN WAYNE COUNTY MISSISSIPPI SOUTH- WEST OF WAYNESBORO..AND IN SOUTH MARENGO COUNTY ALABAMA NEAR DIXONS MILLS. THE THUNDERSTORMS WERE MOVING SOUTH AT 10 MILES AN HOUR. OTHER THUNDERSTORMS..SOME VERY HEAVY..WERE SCATTERED OVER SOUTH ALABAMA AND SOUTHEAST MISSISSIPPI. THE HEAVIER THUNDERSTORMS WILL PRODUCE PERIODS OF HEAVY R0AIN..FREQUENT LIGHTNING..GUSTY WIND AROUND 45 MILES AN HOUR..AND POSSIBLE SMALL HAIL. PERSONS SHOULD TAKE ANY NECESSARY PRECAUTIONS FOR THESE CONDITIONS.
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 5:20 PM CDT | Severe Thunderstorm Warning | MOB | George, Greene | 70 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.