Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 71, NWS Miami, FL

September 9, 2008Collier County, Monroe County, Florida

NWS Miami, FL issued this tornado warning at Sep 9, 2008, 8:42 AM EDT for Collier County, Monroe County, Florida. It was in force for 48 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 9, 2008, 8:42 AM EDT (12:42 UTC)
Expired
Sep 9, 2008, 9:30 AM EDT
In force
48 min
Issued by
NWS Miami, FL
Area
Storm-based polygon

Counties Collier County, FL, Monroe County, FL

The radar

The Miami radar (KAMX), 89 km from the middle of the area, began a volume at 12:44 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 12:00Z, 0.7 hours before the alert went out and 98 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 12:00Z on 2008-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2105 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2008-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 square meters per square second.193958Sfc1 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
2105 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
205 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 091242
TORMFL
FLC021-087-091330-
/O.NEW.KMFL.TO.W.0071.080909T1242Z-080909T1330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MIAMI FL
842 AM EDT TUE SEP 9 2008

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A

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

* UNTIL 930 AM EDT

* AT 835 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES NEAR 
  LOOP ROAD EE CENTER AND ALONG THE COUNTY LINE OF MAINLAND MONROE AND 
  EASTERN COLLIER COUNTY...MOVING NORTHWEST AROUND 40 MPH.

  THESE STORMS ARE ALSO CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
  60 MPH.

* THE TORNADO WILL BE NEAR...
  OASIS RANGER STATION...
  MONROE STATION...
  BIG CYPRESS NATIONAL PRESERVE...
  OCHOPEE...
  CARNESTOWN...
  INTERSECTION OF US 41 AND SR 29...
  INTERSECTION ALLIGATOR ALLEY AND SR 29...
  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.

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 2623 8131 2585 8087 2565 8088 2558 8105
      2579 8135 2580 8133 2579 8135 2581 8137
      2581 8135 2582 8135 2583 8135 2585 8138
      2584 8139 2586 8146 2589 8148 2589 8151
TIME...MOT...LOC 1239Z 116DEG 33KT 2580 8107

$$

BAXTER
1 follow-up statement
936 
WWUS52 KMFL 091307
SVSMFL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
907 AM EDT TUE SEP 9 2008

FLC087-091313-
/O.CAN.KMFL.TO.W.0071.000000T0000Z-080909T1330Z/
MAINLAND MONROE FL-
903 AM EDT TUE SEP 9 2008

...THE TORNADO WARNING FOR NORTHERN MAINLAND MONROE COUNTY IS
CANCELLED...

THE CLUSTER OF SEVERE THUNDERSTORMS THAT WAS SHOWING ROTATION
HAS MOVED OUT OF THE AREA. THEREFORE...THE TORNADO WARNING HAS
BEEN CANCELLED.

LAT...LON 2609 8132 2583 8101 2580 8102 2581 8126
      2580 8128 2581 8130 2580 8134 2583 8135
      2585 8138 2585 8140 2587 8147 2589 8148
      2589 8151
TIME...MOT...LOC 1303Z 113DEG 36KT 2589 8133

$$

FLC021-091330-
/O.CON.KMFL.TO.W.0071.000000T0000Z-080909T1330Z/
COLLIER FL-
903 AM EDT TUE SEP 9 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 AM EDT FOR SOUTH
CENTRAL COLLIER COUNTY...

AT 902 AM EDT...WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A
A CLUSTER OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES ALONG 
WITH DAMAGING WINDS IN EXCESS OF 60 MPH ARE ALSO POSSIBLE.
ONE STORM WAS LOCATED NEAR OCHOPEE...MOVING WEST TO NORTHWEST AROUND
40 MPH. THIS STORM WILL AFFECT THE INTERSECTION OF US 41 AND SR 29.

ANOTHER STORM WAS LOCATED NEAR MONROE STATION ALSO MOVING WEST
TO NORTHWEST AROUND 40 MPH. THIS STORM WILL AFFECT US 41 IN SOUTHEAST
COLLIER COUNTY. 

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.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 2609 8132 2583 8101 2580 8102 2581 8126
      2580 8128 2581 8130 2580 8134 2583 8135
      2585 8138 2585 8140 2587 8147 2589 8148
      2589 8151
TIME...MOT...LOC 1303Z 113DEG 36KT 2589 8133

$$

BAXTER

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 10:37 PM EDTSpecial Marine WarningMFL53 min
Sep 9, 12:01 AM EDTSpecial Marine WarningMFL59 min
Sep 9, 12:55 AM EDTSpecial Marine WarningMFL50 min
Sep 9, 1:31 AM EDTSpecial Marine WarningMFL59 min
Sep 9, 2:35 AM EDTSpecial Marine WarningMFL55 min
Sep 9, 3:25 AM EDTSpecial Marine WarningMFL80 min
Sep 9, 3:59 AM EDTSpecial Marine WarningMFL61 min
Sep 9, 4:07 AM EDTSpecial Weather StatementMFLMonroe53 min
Sep 9, 4:23 AM EDTMarine Weather StatementMFL77 min
Sep 9, 4:56 AM EDTSpecial Marine WarningMFL94 min
Sep 9, 6:12 AM EDTSpecial Marine WarningMFL48 min
Sep 9, 6:30 AM EDTSpecial Marine WarningMFL2 hr
Sep 9, 6:48 AM EDTSpecial Marine WarningMFL57 min
Sep 9, 6:50 AM EDTSpecial Marine WarningMFL115 min
Sep 9, 7:21 AM EDTSpecial Marine WarningMFL48 min
Sep 9, 7:45 AM EDTSpecial Weather StatementMFLMiami-Dade45 min
Sep 9, 8:07 AM EDTSpecial Marine WarningMFL113 min
Sep 9, 8:15 AM EDTSpecial Weather StatementMFLPalm Beach60 min
Sep 9, 8:26 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe64 min
Sep 9, 9:02 AM EDTSpecial Marine WarningMFL43 min
Sep 9, 9:22 AM EDTTornado WarningMFLCollier53 min
Sep 9, 9:30 AM EDTSpecial Marine WarningMFL30 min
Sep 9, 9:54 AM EDTSpecial Marine WarningMFL111 min
Sep 9, 10:21 AM EDTSpecial Weather StatementMFLMiami-Dade, Monroe69 min
Sep 9, 10:29 AM EDTTornado WarningMFLMonroe41 min
Sep 9, 11:02 AM EDTSpecial Marine WarningMFL58 min
Sep 9, 11:23 AM EDTSpecial Weather StatementMFLCollier, Miami-Dade, Monroe82 min
Sep 9, 11:54 AM EDTSevere Thunderstorm WarningMFLMiami-Dade29 min
Sep 9, 12:01 PM EDTSpecial Marine WarningMFL119 min
Sep 9, 1:10 PM EDTSpecial Weather StatementMFLMiami-Dade80 min
Sep 9, 1:29 PM EDTSpecial Marine WarningMFL91 min
Sep 9, 1:33 PM EDTTornado WarningMFLMonroe27 min
Sep 9, 1:57 PM EDTSpecial Marine WarningMFL2 hr
Sep 9, 2:23 PM EDTSpecial Weather StatementMFLCollier37 min
Sep 9, 2:28 PM EDTAreal Flood AdvisoryMFLMiami-Dade2 hr
Sep 9, 2:35 PM EDTSpecial Weather StatementMFLBroward70 min
Sep 9, 2:48 PM EDTTornado WarningMFLMiami-Dade27 min
Sep 9, 3:18 PM EDTTornado WarningMFLMiami-Dade33 min
Sep 9, 4:06 PM EDTTornado WarningMFLCollier, Monroe39 min
Sep 9, 6:38 PM EDTTornado WarningMFLCollier20 min

Nearby

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