Alert archive / Florida / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 6, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Jul 1, 1990, 3:47 PM EDT for Glades County, Florida. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Jul 1, 1990, 3:47 PM EDT (19:47 UTC)
- Expired
- Jul 1, 1990, 4:15 PM EDT
- In force
- 28 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Glades County, FL
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
Tampa Bay, FL (KTBW), launched 12:00Z, 7.8 hours before the alert went out and 146 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
- NaN m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 36 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 KMIA 011914 SVRMIA FLC043-021-012015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED NATIONAL WEATHER SERVICE MIAMI FL 308 PM EDT SUN JUL 1 1990 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH FLORIDA ...SOUTHWEST HENDRY COUNTY IN SOUTHWEST FLORIDA ...NORTHWEST COLLIER COUNTY AT 300 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM IN EXTREME WESTERN HENDRY COUNTY MIDWAY BETWEEN LA BELLE AND IMMOKALEE. THE THUNDERSTORM WAS MOVING TOWARD THE SOUTHEAST AT 10 MPH. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN THIS SEVERE THUNDERSTORM. SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. A MOBILE HOME IS NOT A SAFE REFUGE FROM A SEVERE THUNDERSTORM...MOVE TO A MORE SUBSTANTIAL BUILDING. IF THREATENING WEATHER IS SIGHTED...TAKE SHELTER...THEN ASK A LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORT TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.
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 1, 3:42 PM EDT, 5 minutes before
FLZ015>023-012025- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION FOR COUNTY... NATIONAL WEATHER SERVICE 325 PM EDT SUN JUL 01 1990 SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUE OVER WESTERN GLADES AND HENRY COUNTIES. A SEVERE THUNDERSTORM WARNING WAS ISSUED FOR SOUTHWEST HENRY AND NORTHWEST COLLIER COUNTY AT 308 PM EDT. THIS WARNING WILL EXPIRE AT 4 PM EDT. THESE THUNDERSTORMS ARE MOVING TO THE SOUTH AT 10 MILES AN HOUR. RESIDENTS SHOULD REMAIN ALERT AS THESE THUNDERSTORMS MOVE ACROSS THE AREA. OTHER ISOLATED SHOWERS AND THUNDERSTORMS WERE OVER INDIAN RIVER...ST LUCIE... PALM BEACH COUNTIES AS WELL AS OVER THE ATLANTIC NORTH OF GRAND BAHAMA ISLAND. ANOTHER ISLOATED THUNDERSTORM WAS ALONG THE COAST NEAR EVERGLADES NATIONAL PARK. HIGHEST PRECIPITATION TOP WAS 43 THOUSAND FEET LOCATED OF NORTH CHARLOTTE COUNTY. MOVEMENT REMAINED SOUTH AT 10 MILES AN HOUR.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 3:08 PM EDT | Severe Thunderstorm Warning | MFL | Collier, Hendry | 67 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1990Every severe thunderstorm warning in 1990
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.