Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 17, NWS Miami, FL

March 9, 1998Broward County, Florida

NWS Miami, FL issued this tornado warning at Mar 9, 1998, 6:06 AM EST for Broward County, Florida. It was in force for 29 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
Mar 9, 1998, 6:06 AM EST (11:06 UTC)
Expired
Mar 9, 1998, 6:35 AM EST
In force
29 min
Issued by
NWS Miami, FL
Area
Whole counties

County Broward County, FL

The radar

The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 11:10 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 9, 1:00 AM ESTTornado WatchSPC6 hr

The nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 11.1 hours before the alert went out and 40 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.

Skew-T log-pSkew-T log-p diagram, Miami, FL at 00:00Z on 1998-03-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1605 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 00:00Z on 1998-03-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 169 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1605 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
169 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
1.1
Supercell composite
7.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

114 
WFUS1 KMIA 091108 RRA
TORMIA
FLC011-091135-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
606 AM EST MON MAR 9 1998

THE NATIONAL WEATHER SERVICE IN MIAMI FL HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 635 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN FLORIDA

   ...EASTERN BROWARD COUNTY

AT 604 AM EST... DOPPLER RADAR INDICATED A POSSIBLE TORNADO
OVER NORTHERN DADE COUNTY MOVING NORTHEAST AT 40 MPH. THE STORM WILL
MOVE ACROSS THE HOLLYWOOD AREA BY 615 AM AND CONTINUE MOVING RAPIDLY
NORTHEAST.

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS UNDER
STURDY FURNITURE IN AN INTERIOR ROOM ON THE LOWEST FLOOR. USE
PILLOWS TO PROTECT YOUR HEAD. AVOID WINDOWS. A MOBILE HOME IS NOT A
SAFE REFUGE FROM A TORNADO. MOVE TO A MORE SUBSTANTIAL BUILDING. DO
NOT TRY TO OUTRUN A TORNADO IN YOUR VEHICLE.

The office that day

Everything else NWS Miami, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 9, 2:41 AM ESTSevere Thunderstorm WarningMFLCollier59 min
Mar 9, 3:22 AM ESTSevere Thunderstorm WarningMFLCollier, Glades, Hendry63 min
Mar 9, 4:09 AM ESTSevere Thunderstorm WarningMFLPalm Beach31 min
Mar 9, 4:21 AM ESTSevere Thunderstorm WarningMFLCollier34 min
Mar 9, 4:41 AM ESTSevere Thunderstorm WarningMFLPalm Beach64 min
Mar 9, 5:33 AM ESTTornado WarningMFLBroward32 min
Mar 9, 5:54 AM ESTTornado WarningMFLMiami-Dade21 min
Mar 9, 6:18 AM ESTSevere Thunderstorm WarningMFLMiami-Dade62 min
Mar 9, 7:43 AM ESTSevere Thunderstorm WarningMFLMiami-Dade47 min
Mar 9, 8:09 AM ESTSevere Thunderstorm WarningMFLMonroe91 min

Nearby

Tornado Warnings in Florida, 1998Every tornado warning in 1998Tornadoes 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; radar from the NEXRAD Level II archive.