Alert archive / Florida / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 185, NWS Mobile, AL
NWS Mobile, AL issued this severe thunderstorm warning at Dec 16, 1996, 7:57 PM CST for Santa Rosa County, Florida. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 16, 1996, 7:57 PM CST (01:57 UTC)
- Expired
- Dec 16, 1996, 9:00 PM CST
- In force
- 63 min
- Issued by
- NWS Mobile, AL
- Area
- Whole counties
County Santa Rosa County, FL
The radar
The Eglin Afb radar (KEVX), 106 km from the middle of the area, began a volume at 01:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 00:00Z, 2.0 hours before the alert went out and 262 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 519 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- -68 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMOB 170158 RRA SVRMOB FLC113-170300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOBILE AL 757 PM CST MON DEC 16 1996 THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST FLORIDA ...SANTA ROSA COUNTY AT 755 PM...DOPPLER WEATHER RADAR SHOWED A SEVERE THUNDERSTORM NEAR BERRYDALE...ALLENTOWN...AND GULF BREEZE. THESE STORMS WILL PRODUCE WINDS IN EXCESS OF 60 MPH THROUGH 9 PM. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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.
NWS Mobile, AL wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 16, 3:05 PM CST, 4 hours 52 minutes earlier.
Area forecast discussion, Dec 16, 3:05 PM CST, 4 hours 52 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MOBILE AL 305 PM MON DEC 16 1996 18Z SFC MAP INDICATES LOW PRESSURE ALONG FRONTAL BOUNDARY JUST SOUTH OF JAN MS WITH WARM FRONTAL BOUNDARY EXTENDING EAST FROM LOW ALONG GULF COAST REGION. KMOB 88D SHOWING AREA OF RAIN WITH A FEW EMBEDDED HEAVIER SHOWERS OVER PARTS OF SE MS...SW AL AND FLORIDA PANHANDLE. EXTENSIVE MID/HIGH CLOUD COVER OVER AREA HAS NOT ALLOWED ATMOSPHERE TO BECOME VERY UNSTABLE DUE TO DAYTIME HEATING...AND RADAR PRESENTATIONS OVER AREA NOT VERY CONVECTIVE IN NATURE ATTM. HOWEVER MODELS CONTINUE TO INDICATE INCREASE IN THE LOLVL JET OVER MUCH THE FCST AREA THRU REMAINDER OF THIS AFTERNOON AND EVENING AND REGIONAL 88D VWP'S ARE INDICATING LOW LEVEL FLOW INCREASING OVER THE AREA. AS WARM FRONT MOVES NORTH ACROSS CWA THIS EVENING...AND MOISTURE INCREASES ALONG WITH INCREASING LOLVL SHEAR...COULD STILL SEE ISOLATED SVR STORMS OVER EASTERN PART OF CWA THIS EVENING...MAINLY NEAR THE COAST. THE LOW OVER MS WILL MOVE RAPIDLY NORTHEAST TO GREAT LAKES REGION BY 24 HOURS AS ASSOCIATED COLD FRONT MOVES SLOWLY EAST ACROSS THE FL PNHDL. COOLER AIR TO MOVE INTO FCST AREA BEHIND THIS FRONT. SECOND FRONTAL SYSTEM TO MOVE TOWARD CWA BY PERIODS END. CONVERGENCE ASSOCIATED WITH THIS SYSTEM ...AND OVERRUNNING FROM FRONTAL SYSTEM TO THE EAST (SW FLOW ALOFT) BRINGS HIGHER POPS TO REGION AGAIN LATE IN THE PERIOD. COLDEST AIR OF SEASON FOR AREA BEHIND SECOND FRONT EFFECTING AREA DURING EXTENDED PERIOD. MOB 50/59/51/57 7255 PNS 54/62/54/61 7366 DTS 55/63/57/61 6366 EVR 44/53/46/54 7457 12
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 16, 6:20 PM CST | Severe Thunderstorm Warning | MOB | Okaloosa | 55 min |
| Dec 16, 7:17 PM CST | Severe Thunderstorm Warning | MOB | Okaloosa | 58 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1996Every severe thunderstorm warning in 1996
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; radar from the NEXRAD Level II archive.