Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 83, NWS Miami, FL

September 10, 2008Monroe County, Florida

NWS Miami, FL issued this tornado warning at Sep 10, 2008, 5:16 AM EDT for Monroe County, Florida. It was in force for 14 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: Sep 10, 2008, 5:16 AM EDT (09:16 UTC)
Expired: Sep 10, 2008, 5:30 AM EDT
In force: 14 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

County Monroe County, FL

The radar

The Miami radar (KAMX), 68 km from the middle of the area, began a volume at 09:16 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 nearest sounding before it

Miami, FL (KMFL), launched 00:00Z, 9.3 hours before the alert went out and 93 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: 3819 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 585 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KMFL 100916
TORMFL
FLC087-100930-
/O.NEW.KMFL.TO.W.0083.080910T0916Z-080910T0930Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
516 AM EDT WED SEP 10 2008

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN MAINLAND MONROE COUNTY IN SOUTH FLORIDA.

* UNTIL 530 AM EDT

* AT 512 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER FLORIDA BAY
  ...MOVING NORTHWEST AT 35 MPH.

  THIS STORM IS ALSO CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
  60 MPH.

* THE TORNADO WILL BE NEAR...
  FLAMINGO...
  AND SURROUNDING COMMUNITIES.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR COULD POSSIBLY DEVELOP ANYTIME. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO
SEE. TAKE COVER NOW IF YOU WAIT UNTIL YOU SEE OR HEAR IT COMING...IT
MAY BE TOO LATE TO GET TO A SAFE PLACE MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR. LEAVE MOBILE HOMES AND VEHICLES FOR
REINFORCED SHELTER. STAY AWAY FROM WINDOWS.

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.

LAT...LON 2511 8089 2512 8089 2513 8088 2514 8091
      2526 8100 2524 8096 2527 8095 2528 8099
      2526 8101 2528 8102 2531 8089 2523 8086
      2518 8086 2517 8089 2515 8090 2512 8087
TIME...MOT...LOC 0915Z 149DEG 30KT 2516 8087

$$

BAXTER

1 follow-up statement

414 
WWUS52 KMFL 100925
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
525 AM EDT WED SEP 10 2008

FLC087-100935-
/O.EXP.KMFL.TO.W.0083.000000T0000Z-080910T0930Z/
MAINLAND MONROE FL-
525 AM EDT WED SEP 10 2008

...THE TORNADO WARNING FOR SOUTHEASTERN MAINLAND MONROE COUNTY WILL
EXPIRE AT 530 AM EDT...

NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE TORNADO HAS
DISSIPATED. THUS THE TORNADO WARNING WILL EXPIRE AT 530 AM EDT.

HOWEVER...THUNDERSTORMS REMAIN IN THE AREA WITH LIGHTNING
STRIKES...GUSTY WINDS TO 40 MPH...AND VERY HEAVY RAINFALL. STAY
TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR THE LATEST UPDATES
ON THESE STORMS.

LAT...LON 2511 8089 2512 8089 2513 8088 2514 8091
      2526 8100 2524 8096 2527 8095 2528 8099
      2526 8101 2528 8102 2531 8089 2523 8086
      2518 8086 2517 8089 2515 8090 2512 8087
TIME...MOT...LOC 0925Z 149DEG 30KT 2523 8092

$$

BAXTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 9, 10:14 PM EDT	Tornado Warning	MFL	Collier	46 min
Sep 10, 12:34 AM EDT	Special Marine Warning	MFL		56 min
Sep 10, 12:45 AM EDT	Tornado Warning	MFL	Monroe	15 min
Sep 10, 1:22 AM EDT	Severe Thunderstorm Warning	MFL	Collier, Monroe	38 min
Sep 10, 1:54 AM EDT	Special Weather Statement	MFL	Collier, Monroe	51 min
Sep 10, 3:04 AM EDT	Special Weather Statement	MFL	Collier, Monroe	56 min
Sep 10, 3:39 AM EDT	Tornado Warning	MFL	Monroe	21 min
Sep 10, 3:56 AM EDT	Special Weather Statement	MFL	Collier, Monroe	64 min
Sep 10, 4:12 AM EDT	Areal Flood Advisory	MFL	Collier	3 hr
Sep 10, 4:34 AM EDT	Tornado Warning	MFL	Collier	35 min
Sep 10, 4:59 AM EDT	Special Weather Statement	MFL	Collier, Monroe	76 min
Sep 10, 5:44 AM EDT	Marine Weather Statement	MFL		12 hr
Sep 10, 6:13 AM EDT	Special Weather Statement	MFL	Monroe	77 min
Sep 10, 11:24 AM EDT	Coastal Flood Statement	MFL	Collier	26 hr

Nearby

Tornado Warnings in Florida, 2008 Every tornado warning in 2008 Tornadoes in 2008

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.