Alert archive / Florida / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 5, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Mar 15, 1986, 4:53 PM EST for Broward County, Miami-Dade County, Florida. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Mar 15, 1986, 4:53 PM EST (21:53 UTC)
- Expired
- Mar 15, 1986, 5:45 PM EST
- In force
- 52 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
Counties Broward County, FL, Miami-Dade 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, 9.9 hours before the alert went out and 193 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
- 780 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 588 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMIA 152153 SVRMIA FLC011-025-152245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING NATIONAL WEATHER SERVICE MIAMI FL 453 PM EST SAT MAR 15 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 545 PM EST FOR PEOPLE IN THE FOLLOWING COUNTIES OF SOUTHEAST FLORIDA...EASTERN BROWARD AND WESTERN DADE ...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE COUNTIES JUST MENTIONED RADAR AT 445PM THIS AFTERNOON INDICATED SCATTERED TO NUMEROUS HEAVY THUNDERSTORMS DEVELOPING RAPIDLY FOR EASTERN BROWARD AND WESTERN DADE COUNTIES. ALSO SEVERAL REPORTS FROM THE PUBLIC HAVE REPORTED STRONG GUSTY WINDS WITH MARBLE SIZE HAIL IN THE ABOVE MENTIONED AREAS. THESE STORMS ARE MOVING NE 20 TO 25 MPH AND WILL ALSO BE AFFECTING THE ADJACENT COASTAL WATERS OF EASTERN BROWARD COUNTY WITHIN THE NEXT HOUR. IF THREATENING WEATHER APPROACHES YOU SHOULD GO TO A SAFE PLACE IMMEDIATELY..AND YOU 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, Mar 15, 11:15 AM EST, 5 hours 38 minutes before
^MIASPSPBI SPECIAL WEATHER AND MARINE STATEMENT NATIONAL WEATHER SERVICE WEST PALM BEACH FL 1115 AM EST SAT MAR 15 1986 A TORNADO WATCH IS IN EFFECT UNTIL 2PM EST FOR MUCH OF THE CENTRAL FLORIDA AND THE ADJACENT COASTAL WATERS WHICH INCLUDES THE FOLLOWING COUNTIES..PALM BEACH..MARTIN ..ST LUCIE AND OKEECHOBEE COUNTIES.. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. AT 1110 AM EST THE WEST PALM BEACH RADAR WAS INDICATING ISOLATED SHOWERS IN PALM BEACH COUNTY COASTAL WATERS MOVING TOWARD THE NORTHEAST AT 20 MPH. NO SEVERE ACTIVITY WAS INDICATED OR REPORTED DURING THE PAST TWO HOURS. RESIDENTS IN THE ABOVE MENTIONED COUNTIES AND MARINE INTEREST IN THE COASTAL WATERS SHOULD STAY TUNED TO THE LATEST LOCAL STATEMENTS AND NOAA WEATHER RADIO. FURTHER STATEMENTS OR WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.
Special weather statement, Mar 15, 11:37 AM EST, 5 hours 16 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MIAMI FL 1135 AM EST SAT MAR 15 1986 ...TORNADO WATCH NUMBER 37 IS IN EFFECT UNTIL 2PM FOR THE SOUTH FLORIDA COUNTIES OF COLLIER...HENDRY...AND GLADES... NO SEVERE WEATHER HAS BEEN REPORTED AT THIS TIME. AT 1130 AM EST RADAR INDICATED WIDELY SCATTERED SHOWERS AND ISOLATED HEAVY THUNDERSTORMS EXTENDED FROM WELL OFFSHORE VERO BEACH TO 20 MILES OFFSHORE THE PALM BEACHES. THIS ACTIVITY ALSO EXTENDED ALONG AND OVER THE COASTAL SECTIONS NEAR DELRAY BEACH TO FORT LAUDERDALE. MOVEMENT WAS NORTH AT 20 MILES AN HOUR.
Special weather statement, Mar 15, 12:38 PM EST, 4 hours 15 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MIAMI FL 1235 PM EST SAT MAR 15 1986 ...TORNADO WATCH NUMBER 37 IS IN EFFECT UNTIL 2PM FOR THE SOUTH FLORIDA COUNTIES OF COLLIER...HENDRY...AND GLADES... NO SEVERE WEATHER HAS BEEN REPORTED AT THIS TIME. AT 1230 PM EST RADAR INDICATED SCATTERED SHOWERS AND ISOLATED VERY HEAVY THUNDERSTORMS EXTENDED FROM ALONG AND OVER THE COASTAL SECTIONS AT FORT LAUDERDALE TO VERO BEACH AND PTHE ADJACENT WATERS. MOVEMENT WAS NORTHEAST AT 20 MILES AN HOUR.
Special weather statement, Mar 15, 1:15 PM EST, 3 hours 38 minutes before
^MIASPSPBI SPECIAL WEATHER AND MARINE STATEMENT NATIONAL WEATHER SERVICE WEST PALM BEACH FL 115 PM EST SAT MAR 15 1986 TORNADO WATCH NUMBER 37 REMAINS IN EFFECT UNTIL 2PM EST FOR MUCH OF CENTRAL AND SOUTH FLORIDA AND THE ADJACENT COASTAL WATERS WHICH INCLUDES THE FOLLOWING COUNTIES..PALM BEACH..MARTIN..ST LUCIE AND OKEECHOBEE COUNTIES.. REMEMBER A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. AT 105 PM EST RADAR INDICATED SHOWERS AND THUNDERSTORMS ALONG THE COAST OF MARTIN AND PALM BEACH COUNTIES EXTENDING NORTHEAST. A LINE OF VERY HEAVY THUNDERSTORMS WILL BE MOVING INTO OKEECHOBEE AND ST LUCIE COUNTIES AS WELL AS LAKE OKEECHOBEE FROM THE NORTHWEST WITHIN THE NEXT 2 HOURS. THE AREA IS MOVING TO THE SOUTHEAST AT 25 MPH WHILE THE THUNDERSTORMS ARE MOVING TO THE NORTHEAST AT 30 MPH. RESIDENTS IN THE ABOVE MENTIONED COUNTIES AND MARINE INTEREST IN THE COASTAL WATERS SHOULD STAY TUNED TO THE LATEST LOCAL STATEMENTS AND NOAA WEATHER RADIO.
Special weather statement, Mar 15, 1:47 PM EST, 3 hours 6 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE MIAMI FL 145 PM EST SAT MAR 15 1986 ...TORNADO WATCH NUMBER 37 IS IN EFFECT UNTIL 2PM FOR THE SOUTH FLORIDA COUNTIES OF COLLIER...HENDRY...AND GLADES... NO SEVERE WEATHER HAS BEEN REPORTED AT THIS TIME. AT 135 PM EST RADAR INDICATED SCATTERED VERY HEAVY THUNDERSTORMS AND PATCHES OF RAIN EXTENDED OVER THE SOUTHEAST PENINSULA FROM VERO BEACH TO THE PALM BEACHES AND THE ADJACENT| WATERS AND SOUTH TO DADE COUNTY. THIS ACTIVITY ALSO EXTENDED WEST OVER THE INTERIOR SECTIONS OF THE SOUTHERN PENINSULA. MOVEMENT OF THE THUNDERSTORMS WAS NORTHEAST AT 30 MILES AN HOUR.
Special weather statement, Mar 15, 2:15 PM EST, 2 hours 38 minutes before
^MIASPSPBI SPECIAL WEATHER AND MARINE STATEMENT NATIONAL WEATHER SERVICE WEST PALM BEACH FL 215 PM EST SAT MAR 15 1986 THE TORNADO WATCH ISSUED AT 8 AM EST THIS MORNING FOR PALM BEACH..MARTIN..ST LUCIE AND OKEECHOBEE COUNTIES HAS EXPIRED. HOWEVER ISOLATED THUNDERSTORMS CONTINUE THROUGOUT THE ABOVE MENTIONED COUNTIES AND THE ADJACENT COASTAL WATERS. MARINE INTERESTS OPERATING ALONG THE COASTAL WATERS OF ST LUCIE..MARTIN AND PALM BEACH COUNTIES AND ON LAKE OKEECHOBEE SHOULD REMAIN ALERT FOR POSSIBLE HIGH WINDS AND ROUGH SEAS FOR THE NEXT SEVERAL HOURS. PERSONS IN THE ABOVE COUNTIES CAN LIKELY EXCEPT FOR THE NEXT SEVERAL HOURS PERIODS OF HEAVY RAIN..STRONG GUST WINDS AND DANGEROUS LIGHTNING. FURTHER STATEMENTS WILL BE ISSUED IF CONDITIONS WARRANT.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 5:54 PM EST | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 51 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.