Alert archive / Florida / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 45, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Oct 31, 1994, 2:31 AM EST for Broward County, Miami-Dade County, Florida. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Oct 31, 1994, 2:31 AM EST (07:31 UTC)
- Expired
- Oct 31, 1994, 3:30 AM EST
- In force
- 59 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, 7.5 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
- 2915 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 708 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 39 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS1 KMIA 310731 RRA SVRMIA FLC011-025-310830- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 231 AM EST MON OCT 31 1994 THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST FLORIDA ...SOUTHERN BROWARD COUNTY...EASTERN DADE COUNTY ...SEVERE THUNDERSTORM DEVELOPING IN EASTERN DADE... THE SEVERE THUNDERSTORM EXTENDED FROM WESTON THROUGH PEMBROKE PINES AND MIRAMAR INTO NORTHERN DADE AT 221 AM. THE SEVERE THUNDERSTORM WARNING FOR BROWARD HAS BEEN EXTENDED UNTIL 4 AM. THIS SEVERE THUNDERSTORM WAS MOVING AND DEVELOPING EASTWARD RAPIDLY. HEAVY RAIN WAS BEGINNING TO OCCUR FROM NEAR MIAMI INTERNATIONAL AIRPORT NORTHWARD THROUGH HIALEAH. BY 3 AM THIS SEVERE THUNDERSTORM SHOULD COVER BROWARD AND DADE FROM LAUDERHILL SOUTH TO NEAR CORAL GABLES. DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN A SEVERE THUNDERSTORM. SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. IF THREATENING WEATHER IS SIGHTED...TAKE SHELTER...THEN REPORT THE SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
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, Oct 30, 8:45 PM EST, 5 hours 46 minutes before
FLZ067-068-FLZ502-310250-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE WEST PALM BEACH FL
845 PM EST SUN OCT 30 1994
...STRONG THUNDERSTORMS OVER WESTERN PALM BEACH COUNTY...
AT 835 PM WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS
OVER WESTERN PALM BEACH COUNTY JUST EAST OF CANAL POINT AND BELLE
GLADE. AS THESE THUNDERSTORMS MOVE NORTHEAST THEY MAY PRODUCE VERY
HEAVY RAINFALL...STRONG GUSTY WINDS...AND DANGEROUS LIGHTNING STRIKES.
MOTORIST SHOULD BE ALERT FOR REDUCED VISIBILITY IN HEAVY RAINFALL.
THESE THUNDERSTORMS ARE PART OF A LARGE AREA OF LIGHT RAIN WITH
EMBEDDED VERY HEAVY THUNDERSTORMS THAT EXTENDED FROM BREVARD
COUNTY TO PALM BEACH COUNTY. THE AREA EXTENDED OVER THE ATLANTIC
FOR WELL OVER 100 MILES AND WEST UP TO 100 MILES.
MOVEMENT WAS NORTHEAST 10 MILES AN HOUR.Special weather statement, Oct 30, 8:51 PM EST, 5 hours 40 minutes before
FLZ067-068-FLZ502-310250-
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE WEST PALM BEACH FL
845 PM EST SUN OCT 30 1994
...STRONG THUNDERSTORMS OVER WESTERN PALM BEACH COUNTY...
AT 835 PM WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS
OVER WESTERN PALM BEACH COUNTY JUST EAST OF CANAL POINT AND BELLE
GLADE. AS THESE THUNDERSTORMS MOVE NORTHEAST THEY MAY PRODUCE VERY
HEAVY RAINFALL...STRONG GUSTY WINDS...AND DANGEROUS LIGHTNING STRIKES.
MOTORIST SHOULD BE ALERT FOR REDUCED VISIBILITY IN HEAVY RAINFALL.
THESE THUNDERSTORMS ARE PART OF A LARGE AREA OF LIGHT RAIN WITH
EMBEDDED VERY HEAVY THUNDERSTORMS THAT EXTENDED FROM BREVARD
COUNTY TO PALM BEACH COUNTY. TH$E AREA EXTENDED OVER THE ATLANTIC
FOR WELL OVER 100 MILES AND WEST UP TO 100 MILES.
MOVEMENT WAS NORTHEAST 10 MILES AN HOUR.Special weather statement, Oct 30, 9:33 PM EST, 4 hours 58 minutes before
FLZ067-310330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WEST PALM BEACH FL 933 PM EST SUN OCT 30 1994 AT 925 PM NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS OVER CENTRAL PALM BEACH COUNTY. AS THESE THUNDERSTORMS MOVE NORTHEAST 10 TO 15 MILES AN HOUR THROUGH PALM BEACH COUNTY THEY MAY PRODUCED VERY HEA RAINFALL...STRONG GUSTY WINDS...DANGEROUS LIGHTNING STRIKES AND PONDING WATERS ON ROADWAYS. MOTORIST SHOULD BE ALERT FOR REDUCED VISIBILITY IN H VRAINFALL. NNNN
Special weather statement, Oct 31, 1:12 AM EST, 1 hour 19 minutes before
FLZ071>074-310815- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 112 AM EST MON OCT 31 1994 ...INTENSE THUNDERSTORMS IN WESTERN BROWARD AND NORTHWEST DADE... A LARGE INTENSE THUNDERSTORM COVERED MUCH OF WESTERN BROWARD COUNTY AND PART OF NORTHWEST DADE AT 103 AM. THIS THUNDERSTORM WAS ABOUT 10 MILES WEST OF PEMBROKE PINES AND 10 MILES NORTHWEST OF HIALEAH. THE STORM WAS MOVING EAST SOUTHEAST ABOUT 10 MPH. IT SHOULD MOVE ACROSS HIGHWAY 27 SHORTLY AND INTO THE WESTERN SUBURBS OF BROWARD COUNTY FROM TAMARAC SOUTH THROUGH MIRAMAR AND INTO HIALEAH BETWEEN 2 AND 3 AM. RESIDENTS CAN EXPECT WIND GUSTS TO 40 MPH...SMALL HAIL...FREQUENT LIGHTNING AND HEAVY RAIN AS THESE STORMS PASS THROUGH SOUTHEAST FLORIDA. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY.
Special weather statement, Oct 31, 1:13 AM EST, 1 hour 18 minutes before
FLZ071>074-310815- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MIAMI FL 112 AM EST MON OCT 31 1994 ...INTENSE THUNDERSTORMS IN WESTERN BROWARD AND NORTHWEST DADE... A LARGE INTENSE THUNDERSTORM COVERED MUCH OF WESTERN BROWARD COUNTY AND PART OF NORTHWEST DADE AT 103 AM. THIS THUNDERSTORM WAS ABOUT 10 MILES WEST OF PEMBROKE PINES AND 10 MILES NORTHWEST OF HIALEAH. THE STORM WAS MOVING EAST SOUTHEAST ABOUT 10 MPH. IT SHOULD MOVE ACROSS HIGHWAY 27 SHORTLY AND INTO THE WESTERN SUBURBS OF BROWARD COUNTY FROM TAMARAC SOUTH THROUGH MIRAMAR AND INTO HIALEAH BETWEEN 2 AND 3 AM. RESIDENTS CAN EXPECT WIND GUSTS TO 40 MPH...SMALL HAIL...FREQUENT LIGHTNING AND HEAVY RAIN AS THESE STORMS PASS THROUGH SOUTHEAST FLORIDA. IF YOU ARE OUTDOORS...MOVE TO A PLACE OF SHELTER IMMEDIATELY IF A STORM APPROACHES. MOTORISTS SHOULD REMAIN ALERT FOR REDUCED VISIBILITIES DURING DOWNPOURS OF RAIN. STREETS MAY FLOOD QUICKLY.
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 31, 1:41 AM EST | Severe Thunderstorm Warning | MFL | Broward | 64 min |
| Oct 31, 3:13 AM EST | Severe Thunderstorm Warning | MFL | Broward | 37 min |
| Oct 31, 3:13 AM EST | Severe Thunderstorm Warning | MFL | Miami-Dade | 2 hr |
| Oct 31, 5:37 AM EST | Flash Flood Warning | MFL | Miami-Dade | 4 hr |
Nearby
Severe Thunderstorm Warnings in Florida, 1994Every severe thunderstorm warning in 1994
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.