Alert archive / Florida / Tornado Warnings in 2008

Tornado Warning 16, NWS Melbourne, FL

August 19, 2008Martin County, Saint Lucie County, Florida

NWS Melbourne, FL issued this tornado warning at Aug 19, 2008, 6:45 AM EDT for Martin County, Saint Lucie County, Florida. It was in force for 30 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, 6:45 AM EDT (10:45 UTC)
Expired
Aug 19, 2008, 7:15 AM EDT
In force
30 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

Counties Martin County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 106 km from the middle of the area, began a volume at 10:49 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 18, 10:44 PM EDTTornado WatchSPC9 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 10.8 hours before the alert went out and 139 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 00:00Z on 2008-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 590 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 00:00Z on 2008-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -61 square meters per square second.1939Sfc1 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
590 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-61 m²/s²
0-3 km storm-relative helicity
-71 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 KMLB 191045
TORMLB
FLC085-111-191145-
/O.NEW.KMLB.TO.W.0016.080819T1045Z-080819T1145Z/

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

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN MARTIN COUNTY IN EAST CENTRAL FLORIDA...
  THIS INCLUDES THE CITIES OF...STUART...PALM CITY...JENSEN BEACH...
  EASTERN ST. LUCIE COUNTY IN EAST CENTRAL FLORIDA...
  THIS INCLUDES THE CITIES OF...WALTON...WHITE CITY...SAINT LUCIE
  NUCLEAR PLANT...PORT SAINT LUCIE...

* UNTIL 745 AM EDT

* AT 639 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ROCKY
  POINT...OR ABOUT 7 MILES EAST OF STUART...MOVING NORTHWEST AT 33
  MPH.

* THE TORNADO WILL BE NEAR...
  STUART AND PALM CITY BY 650 AM EDT...
  NORTH RIVER SHORES AND JENSEN BEACH BY 655 AM EDT...
  WALTON BY 700 AM EDT...
  PORT SAINT LUCIE BY 705 AM EDT...
  PORT SAINT LUCIE AND PORT SAINT LUCIE RIVER PARK BY 710 AM EDT...
  SAINT LUCIE WEST BY 715 AM EDT...

TORNADOES ASSOCIATED WITH TROPICAL CYCLONES ARE OFTEN WRAPPED IN
HEAVY RAIN AND ARE HARD TO SEE OR HEAR UNTIL THEY ARE VERY CLOSE. DO
NOT GET CAUGHT OFFGUARD

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A STRONG BUILDING ON
THE LOWEST FLOOR. MOVE TO AN INTERIOR ROOM...SUCH AS A BATHROOM OR
CLOSET AND KEEP AWAY FROM WINDOWS. GET UNDER A WORKBENCH OR OTHER
PIECE OF STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR
BODY.

LAT...LON 2706 8012 2722 8063 2752 8041 2741 8030
      2734 8027 2736 8027 2737 8026 2731 8021
      2719 8015 2717 8016 2717 8018 2716 8019
      2715 8015 2708 8011
TIME...MOT...LOC 1045Z 123DEG 28KT 2719 8019

$$



BRAGAW
1 follow-up statement
000 
WWUS52 KMLB 191115
SVSMLB

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

FLC085-111-191124-
/O.CAN.KMLB.TO.W.0016.000000T0000Z-080819T1145Z/
MARTIN FL-ST. LUCIE FL-
714 AM EDT TUE AUG 19 2008

...THE TORNADO WARNING FOR EASTERN ST. LUCIE AND NORTHEASTERN MARTIN
COUNTIES IS CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE STORM THAT WAS 
CAPABLE OF PRODUCING A TORNADO HAD WEAKENED...THUS THE WARNING HAS 
BEEN CANCELLED. HOWEVER...VERY HEAVY RAIN AND DANGEROUS LIGHTNING 
STRIKES WILL CONTINUE TO BE POSSIBLE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM EDT TUESDAY MORNING
FOR EAST CENTRAL FLORIDA. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 400 PM EDT TUESDAY AFTERNOON FOR EAST CENTRAL FLORIDA.

LAT...LON 2706 8012 2722 8063 2752 8041 2741 8030
      2734 8027 2736 8027 2737 8026 2731 8021
      2719 8015 2717 8016 2717 8018 2716 8019
      2715 8015 2708 8011
TIME...MOT...LOC 1114Z 123DEG 28KT 2731 8040

$$

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, 8:43 AM EDTFlash Flood WarningMLBMartin2 hr
Aug 19, 9:03 AM EDTTornado WarningMLBMartin14 min
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.