Alert archive / Florida / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 17, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at May 22, 1986, 1:40 PM EDT for Broward County, Florida. It was in force for 65 min.
The area
The counties it named.
The facts
- Issued
- May 22, 1986, 1:40 PM EDT (17:40 UTC)
- Expired
- May 22, 1986, 2:45 PM EDT
- In force
- 65 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Broward 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
Key West, FL (KEYW), launched 12:00Z, 5.7 hours before the alert went out and 218 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
- 1507 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 700 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 49 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 221740 SVRMIA FLC011-221845- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MIAMI FL 140 PM EDT THU MAY 22 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 245 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHEAST FLORIDA...NORTHERN BROWARD ...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE COUNTY JUST MENTIONED REPLACE THIS AREA WITH YOUR OPTIONAL FREE TEXT FORMAT STATEMENT AT 145PM EDT RADAR INDICATED A LARGE AREA OF THUDNERSTORMS ACROSS NORTHERN BROWARD COUNTY AND ITS ADJACENT COASTAL WATERS. THIS AREA OF THUNDERSTORMS IS MOVING NORTHEAST 15 TO 20 MPH. RESIDENTS AND BOATERS IN THE EFFECTED AREA SHOUDL BE ALERT FOR STRONG GUSTY WIND..LOCALLY HEAVY RAIN..FREQUENT LIGHTNING STRIKES AND POSSIBLE HAIL. IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY..AND Y$OU SHOULD ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS 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, May 22, 12:46 PM EDT, 54 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MIAMI FL 1243 PM EDT THU MAY 22 1986 NUMEROUS VERY HEAVY THUNDERSTORMS WERE OVER DADE AND BROWARD COUNTIES AND THE ADJACENT COASTAL WATERS. THUNDERSTORMS WERE MOST HEAVILY CONCENTRATED OVER NORTHWEST DADE AND THE SOUTHERN HALF OF BROWARD COUNTY. SOME OF THE HEAVIER THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL HAIL..AS WELL AS REDUCED VISIBILITY IN HEAVY RAIN. MOVEMENT WAS NORTHEAST NEAR 20 MILES AN HOUR. ELSEWHERE..A CLUSTER OF VERY HEAVY THUNDERSTORMS WAS OVER AND NORTH OF THE LOWER FLORIDA KEYS. NUMEROUS VERY HEAVY THUNDERSTORMS EXTENDED FROM NEAR BIMINI TO GRAND BAHAMA ISLAND.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 8:11 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 109 min |
| May 22, 1:01 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 59 min |
| May 22, 3:21 PM EDT | Severe Thunderstorm Warning | MFL | Broward | 69 min |
| May 22, 4:35 PM EDT | Severe Thunderstorm Warning | MFL | Broward, Hendry | 85 min |
Nearby
Severe Thunderstorm Warnings in Florida, 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.