Alert archive / Florida / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 52, NWS Miami, FL

December 10, 2002Miami-Dade County, Monroe County, Florida

NWS Miami, FL issued this severe thunderstorm warning at Dec 10, 2002, 1:17 AM EST for Miami-Dade County, Monroe County, Florida. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 10, 2002, 1:17 AM EST (06:17 UTC)
Expired: Dec 10, 2002, 1:45 AM EST
In force: 28 min
Issued by: NWS Miami, FL
Area: Counties, with a storm outline in the text

Counties Miami-Dade County, FL, Monroe 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
Dec 9, 10:20 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Key West, FL (KEYW), launched 00:00Z, 6.3 hours before the alert went out and 100 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1413 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 748 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 99 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMFL 100617
SVRMIA
FLC086-087-100645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MIAMI FL
115 AM EST TUE DEC 10 2002

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MIAMI-DADE COUNTY IN SOUTHEAST FLORIDA
  SOUTH CENTRAL MAINLAND MONROE COUNTY IN SOUTHWEST FLORIDA

* UNTIL 145 AM EST

* AT 115 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS 5 MILES SOUTHWEST OF
  FLAMINGO...MOVING NORTHEAST AT 20 MPH.

TORNADO WATCH IS IN EFFECT UNTIL 5 AM. SEVERE THUNDERSTORMS CAN PRODUCE 
TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE
OF SAFETY IN AN INTERIOR ROOM IN THE LOWEST FLOOR OF YOUR HOUSE OR BUSINESS
IF A TORNADO IS SPOTTED.

FREQUENT LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY
AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY
ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN MIAMI. OR YOU CAN
ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT 305 229
4522 TO REPORT SEVERE WEATHER.

LAT...LON 2511 8114 2498 8100 2520 8070 2537 8087

.END

BAXTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 9, 7:12 PM EST	Special Marine Warning	MFL		63 min
Dec 9, 7:59 PM EST	Severe Thunderstorm Warning	MFL	Miami-Dade	46 min
Dec 9, 8:02 PM EST	Special Marine Warning	MFL		118 min
Dec 9, 8:38 PM EST	Tornado Warning	MFL	Broward, Miami-Dade	52 min
Dec 9, 8:48 PM EST	Severe Thunderstorm Warning	MFL	Palm Beach	42 min
Dec 9, 9:52 PM EST	Special Marine Warning	MFL		113 min
Dec 9, 10:45 PM EST	Special Marine Warning	MFL		2 hr
Dec 9, 11:39 PM EST	Special Marine Warning	MFL		51 min
Dec 10, 2:50 AM EST	Special Marine Warning	MFL		115 min
Dec 10, 4:14 AM EST	Special Marine Warning	MFL		2 hr
Dec 10, 4:20 AM EST	Special Marine Warning	MFL		115 min

Nearby

Severe Thunderstorm Warnings in Florida, 2002 Every severe thunderstorm warning in 2002

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.