Alert archive / Florida / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 1, NWS Miami, FL
NWS Miami, FL issued this severe thunderstorm warning at Feb 2, 1998, 4:16 PM EST for Monroe County, Florida. It was in force for 59 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Feb 2, 1998, 4:16 PM EST (21:16 UTC)
- Expired
- Feb 2, 1998, 5:15 PM EST
- In force
- 59 min
- Issued by
- NWS Miami, FL
- Area
- Whole counties
County Monroe County, FL
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 2, 4:25 PM EST | Thunderstorm Wind 65 | Big Pine, FL | Two trees fell into house. |
| Feb 2, 5:25 PM EST | Thunderstorm Wind 71 | Duck Key, FL | Reported from Conch Key just north of Duck Key. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
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, 9.3 hours before the alert went out and 69 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.
387 WUUS1 KMIA 022118 RRA SVRMIA FLC087-022215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MIAMI FL 416 PM EST MON FEB 2 1998 THE NATIONAL WEATHER SERVICE IN MIAMI FL HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 PM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHERN FLORIDA ...MONROE LOWER KEYS AT 415 PM EST... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 20 MILES SOUTH OF KEY WEST MOVING NORTH AT 55 MPH. SOME LOCATIONS NEAR THE PATH OF THIS STORM ARE... BIG COPPITT KEY (MM 10) BY ABOUT 445 PM EST BOCA CHICA (MM 8) BY ABOUT 447 PM EST SUMMERLAND KEY (MM 25) BY ABOUT 451 PM EST CUDJOE KEY (MM 22) BY ABOUT 455 PM EST BIG PINE KEY (MM 30) BY ABOUT 500 PM EST 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.
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, 4 hours 33 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, 4 hours 32 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, 4:54 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, 5:38 PM EST | Severe Thunderstorm Warning | MFL | Miami-Dade | 57 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.