Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 4, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Feb 2, 1998, 5:38 PM EST for Miami-Dade County, Florida. It was in force for 57 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 2, 1998, 5:38 PM EST (22:38 UTC)
- Expired
- Feb 2, 1998, 6:35 PM EST
- In force
- 57 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Miami-Dade County, FL
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 2, 2:00 PM EST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Miami, FL (KMFL), launched 12:00Z, 10.6 hours before the alert went out and 31 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
- 121 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 715 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 279 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
911 WUUS1 KMIA 022239 RRA SVRMIA AMZ630-651-FLC025-022335- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 538 PM EST MON FEB 2 1998 THE NATIONAL WEATHER SERVICE IN MIAMI FL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 635 PM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEASTERN FLORIDA ...DADE COUNTY INCLUDING ADJACENT COASTAL WATERS AT 538 PM EST... DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS MOVING INTO SOUTHERN DADE COUNTY. THE THUNDERSTORMS ARE MOVING NORTH AT 40 TO 50 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. SEEK SHELTER IN A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER... SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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, Feb 2, 11:43 AM EST, 5 hours 55 minutes before
AMZ610-630-631-650>654-656-670>676-FLZ063-066>078-022200- SOUTH FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MIAMI FL 1140 AM EST MON FEB 3 1998 ...GALE WARNING THIS AFTERNOON AND TONIGHT... ...RIP CURRENTS LIKELY ALONG SOUTHEAST FLORIDA COAST TODAY... ...WIND ADVISORY ACROSS SOUTH FLORIDA TODAY... GALE WARNINGS ARE IN EFFECT FOR THE COASTAL WATERS OF SOUTH FLORIDA AND A WIND ADVISORY IS IN EFFECT FOR THE MAINLAND AND THE KEYS. SOUTHEAST WINDS OF 30 TO 35 KTS OVER THE WATER AND 25 TO 30 MPH WITH HIGHER GUSTS OVER THE MAINLAND AND THE KEYS WILL CONTINUE INTO TONIGHT. THESE STRONG SOUTHEAST WINDS WILL MAKE RIP CURRENTS LIKELY ALONG PALM BEACH...BROWARD...AND DADE COUNTY BEACHES THIS AFTERNOON. SURF CONDITIONS WILL BE VERY ROUGH AND SWIMMING COULD BE DEADLY. MOTORISTS ...ESPECIALLY THOSE DRIVING HIGH WIND PROFILE VEHICLES ARE ADVISED TO DRIVE WITH EXTRA CARE DUE TO STRONG WIND GUSTS. HIGHER THAN NORMAL TIDE CONDITIONS ARE ALSO EXPECTED WITH MINOR COASTAL FLOODING POSSIBLE ACROSS THE KEYS DURING THE TIME OF HIGH TIDE. THE WINDS ARE THE RESULT OF A DEEPENING LOW PRESSURE IN THE CENTRAL GULF OF MEXICO. AS THE LOW PRESSURE STRENGTHENS...A WARM FRONT WILL MOVE NORTHWARD OVER SOUTH FLORIDA. SHOWERS AND POSSIBLY SEVERE THUNDERSTORMS WILL DEVELOP OVER SOUTH FLORIDA LATER THIS AFTERNOON AND INTO TONIGHT. THESE STORMS WILL BRING PERIODS OF HEAVY RAIN... STRONG WIND GUSTS AND POSSIBLE TORADOES. DB/AZ
Special weather statement, Feb 2, 11:44 AM EST, 5 hours 54 minutes before
AMZ610-630-631-650>654-656-670>676-FLZ063-066>078-022200- SOUTH FLORIDA HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MIAMI FL 1140 AM EST MON FEB 3 1998 ...GALE WARNING THIS AFTERNOON AND TONIGHT... ...RIP CURRENTS LIKELY ALONG SOUTHEAST FLORIDA COAST TODAY... ...WIND ADVISORY ACROSS SOUTH FLORIDA TODAY... GALE WARNINGS ARE IN EFFECT FOR THE COASTAL WATERS OF SOUTH FLORIDA AND A WIND ADVISORY IS IN EFFECT FOR THE MAINLAND AND THE KEYS. SOUTHEAST WINDS OF 30 TO 35 KTS OVER THE WATER AND 25 TO 30 MPH WITH HIGHER GUSTS OVER THE MAINLAND AND THE KEYS WILL CONTINUE INTO TONIGHT. THESE STRONG SOUTHEAST WINDS WILL MAKE RIP CURRENTS LIKELY ALONG PALM BEACH...BROWARD...AND DADE COUNTY BEACHES THIS AFTERNOON. SURF CONDITIONS WILL BE VERY ROUGH AND SWIMMING COULD BE DEADLY. MOTORISTS ...ESPECIALLY THOSE DRIVING HIGH WIND PROFILE VEHICLES ARE ADVISED TO DRIVE WITH EXTRA CARE DUE TO STRONG WIND GUSTS. HIGHER THAN NORMAL TIDE CONDITIONS ARE ALSO EXPECTED WITH MINOR COASTAL FLOODING POSSIBLE ACROSS THE KEYS DURING THE TIME OF HIGH TIDE. THE WINDS ARE THE RESULT OF A DEEPENING LOW PRESSURE IN THE CENTRAL GULF OF MEXICO. AS THE LOW PRESSURE STRENGTHENS...A WARM FRONT WILL MOVE NORTHWARD OVER SOUTH FLORIDA. SHOWERS AND POSSIBLY SEVERE THUNDERSTORMS WILL DEVELOP OVER SOUTH FLORIDA LATER THIS AFTERNOON AND INTO TONIGHT. THESE STORMS WILL BRING PERIODS OF HEAVY RAIN... STRONG WIND GUSTS AND POSSIBLE TORNADOES. DB/AZ
The office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 2, 3:32 PM EST | Tornado Warning | MFL | Monroe | 118 min |
| Feb 2, 3:51 PM EST | Tornado Warning | MFL | Monroe | 119 min |
| Feb 2, 4:16 PM EST | Severe Thunderstorm Warning | MFL | Monroe | 59 min |
| Feb 2, 4:54 PM EST | Severe Thunderstorm Warning | MFL | Collier, Monroe | 91 min |
| Feb 2, 5:27 PM EST | Severe Thunderstorm Warning | MFL | Monroe | 93 min |
| Feb 2, 6:00 PM EST | Tornado Warning | MFL | Monroe | 65 min |
| Feb 2, 6:19 PM EST | Severe Thunderstorm Warning | MFL | Broward | 61 min |
| Feb 2, 6:25 PM EST | Severe Thunderstorm Warning | MFL | Collier, Monroe | 95 min |
| Feb 2, 6:39 PM EST | Severe Thunderstorm Warning | MFL | Miami-Dade | 61 min |
Nearby
Severe Thunderstorm Warnings in Florida, 1998Every severe thunderstorm warning in 1998
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.