Alert archive / Florida / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 9, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Apr 16, 1993, 2:25 AM EDT for Broward County, Miami-Dade County, Florida. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Apr 16, 1993, 2:25 AM EDT (06:25 UTC)
- Expired
- Apr 16, 1993, 3:25 AM EDT
- In force
- 60 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
Counties Broward County, FL, Miami-Dade County, FL
The nearest sounding before it
Key West, FL (KEYW), launched 00:00Z, 6.4 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
- 1937 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 696 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 7.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMIA 160622 RRA SVRMIA FLC011-025-160725- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 225 AM EDT FRI APR 16 1993 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 AM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST FLORIDA ...BROWARD COUNTY...DADE COUNTY AT 220 AM EDT...A LINE OF SEVERE THUNDERSTORMS WAS DETECTED ON DOPPLER RADAR OVER THE EXTREME WESTERN SECTIONS OF BOTH DADE AND BROWARD COUNTIES. THIS LINE OF THUNDERSTORMS IS MOVING EAST AT 35 MPH AND WILL MOVE INTO THE HEAVILY POPULATED AREAS OF DADE AND BROWARD COUNTIES BEWTEEN 300 AND 325 AM EDT. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING VERY STRONG GUSTY WINDS... DANGEROUS LIGHTNING...AND HEAVY RAIN AS THE MOVE EAST. 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, Apr 16, 12:34 AM EDT, 1 hour 51 minutes before
FLZ011-013>023-160530- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE WEST PALM BEACH FL 1230 AM EDT FRI APR 16 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR PALM BEACH... MARTIN...ST LUCIE AND OKEECHOBEE COUNTIES AND THE ADJACENT COASTAL WATERS UNTIL 5 AM EDT... AT 1230 AM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A BAND OF STRONG THUNDERSTORMS OVER WESTERN PALM BEACH AND SOUTHERN MARTIN COUNTIES. THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT 35 MILES AN HOUR. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS... FREQUENT DEADLY LIGHTNING...BRIEF HEAVY DOWNPOURS AND POSSIBLE SMALL HAIL. THESE THUNDERSTORMS WERE IN A LARGE AREA OF RAIN OVER THE PENINSULA FROM DAYTONA BEACH TO CHARLOTTE HARBOR...SOUTH TO THE UPPER KEYS. REMEMBER...A SEVERE THUDNERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. NNNN
Special weather statement, Apr 16, 12:48 AM EDT, 1 hour 37 minutes before
FLZ018-022-160545- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 1245 PM EDT FRI APR 16 1993 A SEVERE THUNDERSTORM WATCH IN IN EFFECT FOR SOUTH FLORIDA UNTIL 500 AM EDT INCLUDING...DADE...BROWARD...COLLIER...HENDRY AND GLADES COUNTIES... A LARGE AREA OF RAINSHOWERS WITH CLUSTERS OF VERY HEAVY THUNDERSTORMS EXTENDS SOUTH OVER THE PENINSULA FROM VERO BEACH TO THE KEYS. THIS AREA CONTINUES TO MOVE EAST AT 25 MILES AN HOUR. INDIVIDUAL CELLS WITHIN THIS AREA ARE MOVING EAST NORTHEAST AT 30 TO 35 MILES AN HOUR. RESIDENTS...BOATERS AND OTHER CONCERNED INTERESTS OF SOUTH FLORIDA SHOULD BE ALERT FOR SEVERE WEATHER...REMEMBER LARGE HAIL...DANGEROUS CLOUD TO GROUND LIGHTNING STRIKES AND DAMAGING WINDS ARE POSSIBLE WITH THESE THUNDERSTORMS.
Special weather statement, Apr 16, 1:36 AM EDT, 49 minutes before
FLZ011-013>023-160630- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE WEST PALM BEACH FL 130 AM EDT FRI APR 16 1993 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR PALM BEACH... MARTIN...ST LUCIE AND OKEECHOBEE COUNTIES AND THE ADJACENT COASTAL WATERS UNTIL 5 AM EDT... AT 130 AM EDT...WEATHER SERVICE RADAR INDICATED A FEW STRONG THUNDERSTORMS OVER CENTRAL MARTIN COUNTY BETWEEN INDIAN TOWN AND HOBE SOUND. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS... DEADLY LIGHTNING...BRIEF HEAVY DOWNPOURS AND POSSIBLE SMALL HAIL. THESE THUNDERSTORMS WERE MIXED WITH OTHERS IN A LARGE AREA OF RAIN OVER THE STATE FROM DAYTONA BEACH TO FORT MYERS...SOUTH TO THE UPPER KEYS. REMEMBER...A SEVERE THUDNERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON T6HE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. NNNN
Special weather statement, Apr 16, 1:52 AM EDT, 33 minutes before
FLZ018-022-160645- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 1245 PM EDT FRI APR 16 1993 A SEVERE THUNDERSTORM WATCH IN IN EFFECT FOR SOUTH FLORIDA UNTIL 500 AM EDT INCLUDING...DADE...BROWARD...COLLIER...HENDRY AND GLADES COUNTIES... A LARGE AREA OF RAINSHOWERS WITH CLUSTERS OF VERY HEAVY THUNDERSTORMS EXTENDS SOUTH OVER THE PENINSULA FROM VERO BEACH TO THE KEYS. THIS AREA CONTINUES TO MOVE EAST AT 25 MILES AN HOUR. INDIVIDUAL CELLS WITHIN THIS AREA ARE MOVING EAST NORTHEAST AT 30 TO 35 MILES AN HOUR. RESIDENTS...BOATERS AND OTHER CONCERNED INTERESTS OF SOUTH FLORIDA SHOULD BE ALERT FOR SEVERE WEATHER...REMEMBER LARGE HAIL...DANGEROUS CLOUD TO GROUND LIGHTNING STRIKPES AND DAMAGING WINDS ARE POSSIBLE WITH THESE THUNDERSTORMS.
Special weather statement, Apr 16, 1:54 AM EDT, 31 minutes before
FLZ018-022-160645- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 145 PM EDT FRI APR 16 1993 A SEVERE THUNDERSTORM WATCH IN IN EFFECT FOR SOUTH FLORIDA UNTIL 500 AM EDT INCLUDING...DADE...BROWARD...COLLIER...HENDRY AND GLADES COUNTIES... A LARGE AREA OF RAINSHOWERS WITH CLUSTERS OF VERY HEAVY THUNDERSTORMS EXTENDS SOUTH OVER THE PENINSULA FROM VERO BEACH TO THE KEYS. THIS AREA CONTINUES TO MOVE EAST AT 25 MILES AN HOUR. INDIVIDUAL CELLS WITHIN THIS AREA ARE MOVING EAST NORTHEAST AT 30 TO 35 MILES AN HOUR. RESIDENTS...BOATERS AND OTHER CONCERNED INTERESTS OF SOUTH FLORIDA SHOULD BE ALERT FOR SEVERE WEATHER...REMEMBER LARGE HAIL...DANGEROUS CLOUD TO GROUND LIGHTNING STRIKEVS AND DAMAGING WINDS ARE POSSIBLE WITH THESE THUNDERSTORMS.
Special weather statement, Apr 16, 2:04 AM EDT, 21 minutes before
FLZ018-022-160645- COR SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 145 AM EDT FRI APR 16 1993 A SEVERE THUNDERSTORM WATCH IN IN EFFECT FOR SOUTH FLORIDA UNTIL 500 AM EDT INCLUDING...DADE...BROWARD...COLLIER...HENDRY AND GLADES COUNTIES... A LARGE AREA OF RAINSHOWERS WITH CLUSTERS OF VERY HEAVY THUNDERSTORMS EXTENDS SOUTH OVER THE PENINSULA FROM VERO BEACH TO THE KEYS. THIS AREA CONTINUES TO MOVE EAST AT 25 MILES AN HOUR. INDIVIDUAL CELLS WITHIN THIS AREA ARE MOVING EAST NORTHEAST AT 30 TO 35 MILES AN HOUR. RESIDENTS...BOATERS AND OTHER CONCERNED INTERESTS OF SOUTH FLORIDA SHOULD BE ALERT FOR SEVERE WEATHER...REMEMBER LARGE HAIL...DANGEROUS CLOUD TO GROUND LIGHTNING STRIKES AND DAMAGING WINDS ARE POSSIBLE WITH THESE THUNDERSTORMS.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 10:05 PM EDT | Severe Thunderstorm Warning | MFL | Collier | 55 min |
| Apr 15, 11:37 PM EDT | Severe Thunderstorm Warning | MFL | Collier | 68 min |
| Apr 16, 3:25 AM EDT | Severe Thunderstorm Warning | MFL | Broward, Miami-Dade | 65 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1993Every severe thunderstorm warning in 1993
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.