Alert archive / Florida / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 120, NWS Melbourne, FL
NWS Melbourne, FL issued this severe thunderstorm warning at Dec 10, 1992, 7:23 AM EST for Orange County, Florida. It was in force for 67 min.
The area
The counties it named.
The facts
- Issued
- Dec 10, 1992, 7:23 AM EST (12:23 UTC)
- Expired
- Dec 10, 1992, 8:30 AM EST
- In force
- 67 min
- Issued by
- NWS Melbourne, FL
- Area
- Whole counties
County Orange County, FL
The radar
The Melbourne radar (KMLB), 79 km from the middle of the area, began a volume at 12:24 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
Tampa Bay, FL (KTBW), launched 12:00Z, 0.4 hours before the alert went out and 139 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
- 192 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 325 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Dec 10, 6:51 AM EST, 32 minutes before
FLZ011-016-012-009-101345- SPECIAL EAST CENTRAL FLORIDA WEATHER UPDATE NATIONAL WEATHER SERVICE MELBOURNE FL 650 AM EST THU DEC 10 1992 ...LINE OF THUNDERSTORMS APPROACHING LAKE AND EASTERN MARION COUNTINES... AT 640 AM A LINE OF THUNDERSTORMS HAD MOVED ONSHORE OVER WEST CENTRAL FLORIDA AND WAS APPROACHING EASTERN MARION COUNTY AND LAKE COUNTY. THESE THUNDERSTORMS CONTAINED FREQUENT LIGHTNING AND STRONG GUSTY WINDS. THIS LINE OF THUNDERSTORMS WAS EMBEDDED IN A LARGE AREA OF RAIN WHICH WAS SPREADING INLAND FROM THE GULF OF MEXICO. RESIDENTS IN LAKE COUNTY AND EASTERN MARION COUNTY WILL EXPERIENCE FREQUENT LIGHTNING AND STRONG GUSTY WINDS AS THE LINE OF THUNDERSTORMS PASSES BY 800 AM. BY 900 AM...SHOWERS AND THUNDERSTORMS WILL SPREAD INTO THE WESTERN PORTIONS OF THE ORLANDO METROPOLITAN AREA...AND WILL EXTEND NORTHEAST INTO SEMINOLE AND WESTERN VOLUSIA COUNTY. STRONG GUSTY WINDS CAN BE EXPECTED IN THESE AREAS AS WELL. LISTEN TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION FOR THE LATEST WEATHER INFORMATION. DB
The office that day
Everything else NWS Melbourne, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 10:42 AM EST | Severe Thunderstorm Warning | MLB | Martin, Saint Lucie | 33 min |
| Dec 10, 11:10 AM EST | Severe Thunderstorm Warning | MLB | Martin, Palm Beach | 35 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1992Every severe thunderstorm warning in 1992
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.