Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 17, NWS Melbourne, FL

August 19, 2008Martin County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 19, 2008, 9:03 AM EDT for Martin 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
Aug 19, 2008, 9:03 AM EDT (13:03 UTC)
Expired
Aug 19, 2008, 9:17 AM EDT
In force
14 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Martin County, FL

The radar

The Melbourne radar (KMLB), 113 km from the middle of the area, began a volume at 13:04 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
Aug 19, 7:05 AM EDTTornado WatchSPC9 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 1.1 hours before the alert went out and 147 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, Cape Canaveral, FL at 12:00Z on 2008-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 272 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, Cape Canaveral, FL at 12:00Z on 2008-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
272 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
943 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.6

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KMLB 191303
TORMLB
FLC085-191330-
/O.NEW.KMLB.TO.W.0017.080819T1303Z-080819T1330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
903 AM EDT TUE AUG 19 2008

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN MARTIN COUNTY IN EAST CENTRAL FLORIDA...
  THIS INCLUDES THE CITIES OF...STUART...PALM CITY...JENSEN BEACH...
  HOBE SOUND...

* UNTIL 930 AM EDT

* AT 902 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR HOBE SOUND
  BEACH...OR ABOUT NEAR HOBE SOUND...MOVING NORTHWEST AT 11 MPH.

* THE TORNADO WILL BE NEAR...
  PORT SALERNO AND ROCKY POINT BY 920 AM EDT...
  PALM CITY...STUART...NORTH RIVER SHORES AND JENSEN BEACH BY 930 AM
  EDT...

THE IMMEDIATE DANGER OF A TORNADO IS HIGH. PEOPLE IN THE PATH OF THIS
DEVELOPING TORNADO ARE URGED TO QUICKLY PREPARE FOR ITS APPROACH.
THIS IS A DANGEROUS SITUATION ACT NOW...SECONDS CAN SAVE LIVES

IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS IN A STRONG
BUILDING ON THE LOWEST FLOOR. MOVE TO AN INTERIOR ROOM SUCH AS A
BATHROOM OR CLOSET. KEEP AWAY FROM WINDOWS. IF NECESSARY...GET UNDER
A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE BLANKETS OR
PILLOWS TO COVER YOUR BODY. ABANDON YOUR MOBILE HOME OR RV FOR MORE
SUBSTANTIAL SHELTER. IF YOU ARE CAUGHT OUTSIDE...GET INTO AN
UNFLOODED DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS AND
ARMS. ABANDON YOUR VEHICLE IF THE TORNADO IS NEARBY.

THE TORNADO WILL LIKELY BE WRAPPED IN HEAVY RAIN MAKING IT DIFFICULT
TO SEE. BE SMART AND REACT NOW

LAT...LON 2697 8019 2717 8042 2721 8037 2720 8029
      2727 8029 2727 8024 2724 8022 2726 8022
      2725 8019 2717 8015 2718 8018 2716 8019
      2715 8015 2704 8010
TIME...MOT...LOC 1303Z 138DEG 10KT 2710 8018

$$

JP
1 follow-up statement
000 
WWUS52 KMLB 191317
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
917 AM EDT TUE AUG 19 2008

FLC085-191326-
/O.CAN.KMLB.TO.W.0017.000000T0000Z-080819T1330Z/
MARTIN FL-
916 AM EDT TUE AUG 19 2008

...THE TORNADO WARNING FOR EASTERN MARTIN COUNTY IS CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE SQUALL THAT 
PROMPTED THE TORNADO WARNING HAD WEAKENED AND NO LONGER APPEARED 
CAPABLE OF PRODUCING TORNADOES OR OTHER SEVERE WEATHER...THUS THE 
WARNING HAS BEEN CANCELLED. HOWEVER...HEAVY RAIN AND GUSTY WINDS 
WILL CONTINUE TO BE POSSIBLE AS THE SQUALL MOVES NORTH INTO SAINT 
LUCIE COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM EDT TUESDAY AFTERNOON
FOR EAST CENTRAL FLORIDA.

LAT...LON 2697 8019 2717 8042 2721 8037 2720 8029
      2727 8029 2727 8024 2724 8022 2726 8022
      2725 8019 2717 8015 2718 8018 2716 8019
      2715 8015 2704 8010
TIME...MOT...LOC 1316Z 138DEG 10KT 2713 8021

$$

JP

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 19, 1:32 AM EDTTornado WarningMLBMartin43 min
Aug 19, 2:15 AM EDTTornado WarningMLBMartin33 min
Aug 19, 3:06 AM EDTTornado WarningMLBOkeechobee39 min
Aug 19, 5:50 AM EDTTornado WarningMLBSaint Lucie40 min
Aug 19, 6:28 AM EDTTornado WarningMLBSaint Lucie20 min
Aug 19, 6:28 AM EDTTornado WarningMLBMartin47 min
Aug 19, 6:45 AM EDTTornado WarningMLBMartin, Saint Lucie30 min
Aug 19, 8:43 AM EDTFlash Flood WarningMLBMartin2 hr
Aug 19, 9:52 AM EDTTornado WarningMLBMartin23 min
Aug 19, 10:51 AM EDTFlash Flood WarningMLBMartin, Saint Lucie114 min
Aug 19, 12:26 PM EDTFlash Flood WarningMLBIndian River, Martin, Okeechobee, Saint Lucie4 hr
Aug 19, 12:46 PM EDTTornado WarningMLBIndian River, Saint Lucie29 min
Aug 19, 1:28 PM EDTTornado WarningMLBBrevard, Osceola32 min
Aug 19, 1:53 PM EDTTornado WarningMLBIndian River22 min
Aug 19, 2:17 PM EDTTornado WarningMLBIndian River28 min
Aug 19, 2:30 PM EDTFlash Flood WarningMLBBrevard4 hr
Aug 19, 3:23 PM EDTTornado WarningMLBOsceola34 min
Aug 19, 4:21 PM EDTAreal Flood WarningMLBIndian River, Martin, Okeechobee, Osceola, Saint Lucie4 hr
Aug 19, 4:29 PM EDTTornado WarningMLBBrevard31 min
Aug 19, 6:13 PM EDTFlash Flood WarningMLBBrevard3 hr

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.