Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 68, NWS Miami, FL

August 31, 2008Collier County, Florida

NWS Miami, FL issued this tornado warning at Aug 31, 2008, 6:14 AM EDT for Collier County, Florida. It was in force for 61 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: Aug 31, 2008, 6:14 AM EDT (10:14 UTC)
Expired: Aug 31, 2008, 7:15 AM EDT
In force: 61 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

County Collier County, FL

The radar

The Miami radar (KAMX), 88 km from the middle of the area, began a volume at 10:17 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, 10.2 hours before the alert went out and 92 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: 3266 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 627 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 9.3

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KMFL 311014
TORMFL
FLC021-311115-
/O.NEW.KMFL.TO.W.0068.080831T1014Z-080831T1115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
614 AM EDT SUN AUG 31 2008

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL COLLIER COUNTY IN SOUTH FLORIDA.

* UNTIL 715 AM EDT

* AT 612 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR MONROE
  STATION...MOVING NORTHWEST AT 34 MPH.


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

IF YOU ARE NEAR THE PATH OF A TORNADO...SEEK SHELTER IN A STURDY
BUILDING ON THE LOWEST FLOOR...AWAY FROM OUTSIDE WALLS AND WINDOWS.
GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND 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. OR YOU CAN
ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT
305.229.4528 TO REPORT SEVERE WEATHER.

LAT...LON 2616 8120 2586 8103 2580 8113 2580 8114
      2604 8147
TIME...MOT...LOC 1014Z 140DEG 30KT 2590 8115

$$

GARCIA

1 follow-up statement

000
WWUS52 KMFL 311029
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
629 AM EDT SUN AUG 31 2008

FLC021-311115-
/O.CON.KMFL.TO.W.0068.000000T0000Z-080831T1115Z/
COLLIER FL-
628 AM EDT SUN AUG 31 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 AM EDT FOR CENTRAL
COLLIER COUNTY...

AT 626 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF PRODUCING A
TORNADO. THIS STORM WAS LOCATED 7 MILES EAST OF JEROME...MOVING
NORTHWEST AT 34 MPH.

IF YOU ARE NEAR THE PATH OF A TORNADO...SEEK SHELTER IN A STURDY
BUILDING ON THE LOWEST FLOOR...AWAY FROM OUTSIDE WALLS AND WINDOWS.
GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND 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. OR YOU CAN
ALSO CALL THE NATIONAL WEATHER SERVICE IN MIAMI DIRECTLY AT
305.229.4528 TO REPORT SEVERE WEATHER.

LAT...LON 2616 8120 2586 8103 2580 8113 2580 8114
      2604 8147
TIME...MOT...LOC 1028Z 140DEG 30KT 2598 8124

$$

GARCIA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 8:08 PM EDT	Special Weather Statement	MFL	Collier	37 min
Aug 30, 8:35 PM EDT	Special Marine Warning	MFL		25 min
Aug 30, 8:39 PM EDT	Special Weather Statement	MFL	Palm Beach	36 min
Aug 30, 8:45 PM EDT	Special Marine Warning	MFL		60 min
Aug 30, 10:37 PM EDT	Special Marine Warning	MFL		53 min
Aug 31, 5:25 AM EDT	High Surf Advisory	MFL	Collier	35 hr
Aug 31, 6:37 AM EDT	Special Weather Statement	MFL	Monroe	23 min
Aug 31, 7:12 AM EDT	Tornado Warning	MFL	Collier	63 min
Aug 31, 7:16 AM EDT	Special Weather Statement	MFL	Collier	74 min
Aug 31, 7:55 AM EDT	Tornado Warning	MFL	Collier, Miami-Dade	65 min
Aug 31, 9:01 AM EDT	Special Weather Statement	MFL	Collier	59 min
Aug 31, 7:56 PM EDT	Special Marine Warning	MFL		64 min

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.