Alert archive / Florida / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 35, NWS Melbourne, FL

May 3, 2005Martin County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at May 3, 2005, 1:59 PM EDT for Martin County, Florida. It was in force for 19 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
May 3, 2005, 1:59 PM EDT (17:59 UTC)
Expired
May 3, 2005, 2:18 PM EDT
In force
19 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

County Martin County, FL

The radar

The Melbourne radar (KMLB), 132 km from the middle of the area, began a volume at 17:59 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 6.0 hours before the alert went out and 136 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 2005-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1614 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Miami, FL at 12:00Z on 2005-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
1614 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
855 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.2

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMLB 031756
SVRMLB
FLC085-031845-
/O.NEW.KMLB.SV.W.0035.050503T1759Z-050503T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
159 PM EDT TUE MAY 3 2005

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MARTIN COUNTY IN EAST CENTRAL FLORIDA
  THIS INCLUDES THE CITY OF HOBE SOUND

* UNTIL 245 PM EDT

* AT 154 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR   
JOHNATHAN DICKINSON STATE PARK...OR NEAR HOBE SOUND...AND MOVING 
EAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  JOHNATHAN DICKINSON STATE PARK AND JUPITER ISLAND BY 205 PM EDT
  HOBE SOUND BY 210 PM EDT
  
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 58 MILES AN
HOUR AND OR LARGE DESTRUCTIVE HAIL. FREQUENT TO EXCESSIVE LIGHTNING
AND VERY HEAVY RAIN WILL ALSO BE POSSIBLE. IF THE STORM APPROACHES
YOU...SEEK SHELTER IN AN ENCLOSED BUILDING ON THE LOWEST FLOOR. KEEP
AWAY FROM WINDOWS.

EXCESSIVE CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM IF
OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE
INDOORS IF AT ALL POSSIBLE...STAYING AWAY FROM WINDOWS AND DOORS AND
AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.

LAT...LON 2704 8027 2692 8017 2698 7980 2719 7996

$$

KELLY
1 follow-up statement
000 
WWUS52 KMLB 031818
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
217 PM EDT TUE MAY 3 2005

FLC085-031827-
/O.CAN.KMLB.SV.W.0035.000000T0000Z-050503T1845Z/
MARTIN FL-
217 PM EDT TUE MAY 3 2005

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MARTIN COUNTY IS
CANCELLED...

AT 217 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
SEVERE THUNDERSTORM HAD MOVED OFFSHORE MARTIN COUNTY INTO THE 
ATLANTIC...THUS THE WARNING FOR MARTIN COUNTY HAS BEEN CANCELLED.

A PARK RANGER AT JONATHAN DICKINSON STATE PARK REPORTED GOLF BALL 
SIZED HAIL AT 203 PM.

RADAR INDICATED THAT ADDITIONAL SHOWERS ARE MOVING TOWARD MARTIN 
COUNTY FROM THE WEST WHICH MAY DEVELOP INTO LIGHTNING STORMS. STAY 
TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST 
SEVERE WEATHER INFORMATION.

LAT...LON 2704 8027 2692 8017 2698 7980 2719 7996

$$

KELLY

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 3, 9:52 AM EDT, 4 hours 7 minutes earlier.

Area forecast discussion, May 3, 9:52 AM EDT, 4 hours 7 minutes before
EAST CENTRAL FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MELBOURNE FL
952 AM EDT TUE MAY 3 2005

.DISCUSSION...

OLD FRONTAL BOUNDARY LYING NEAR THE SRN TIP OF FL THIS MORNING WITH
A FEW SHOWERS AND STORMS OCCURRING NEAR AND JUST NORTH OF THE
BOUNDARY. LATEST ADAS ANALYSIS SHOWS A NW-SE DEW POINT GRADIENT
STILL EXISTS...BUT BECOMING LESS SHARP WITH TIME. FORECAST SOUNDINGS
SHOWING PWATS RISING INTO TONIGHT WITH INCREASING S-SW FLOW THROUGH
LOWER AND MID LEVELS. NAM/GFS BOTH SHOWING GOOD ISENTROPIC LIFT
DEVELOPING INTO TONIGHT WITH WARMER MOIST S-SW FLOW COMMENCING...
WHICH WILL RESULT IN INCREASING CLOUDINESS AND CHANCES FOR PRECIP.
MORNING SOUNDINGS AND ADAS ANALYSIS INDICATE THUNDER POTENTIAL WILL
BE HIGHER HEADING TOWARD SE SECTIONS WHERE MORE FAVORABLE THETA E/LI
INDICES EXIST. THIS GENERAL TREND SHOWN IN CURRENT GRIDS/ZONES SO
ONLY MINOR CHANGES ANTICIPATED TO ONGOING FORECAST THIS MORNING.

&&

.MARINE...BUOY 010 IS ADRIFT SO REPORTS ARE UNRELIABLE. BUOY 009 WAS
RECORDING NE WINDS 8-10 KNOTS AND 2 FOOT SEAS. EASTERLY GRADIENT
WILL MAINTAIN 10 KNOT WINDS FOR THE AFTERNOON MAYBE A KNOT OR TWO
MORE RIGHT ALONG THE COAST WHERE SEA BREEZES COME INTO PLAY. NO
CHANGES TO CURRENT MARINE ZONES.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...NONE.

&&

SHORT-TERM...GLITTO
LONG-TERM...WIMMER
Hazardous weather outlook, May 3, 5:55 AM EDT, 8 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE OFFICE MELBOURNE FL
555 AM EDT TUE MAY 3 2005

AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-141-144-147-
041000-
COASTAL VOLUSIA-COCOA BEACH TO JUPITER INLET 20 NM TO 60 NM OFFSHORE-
COCOA BEACH TO JUPITER INLET OUT TO 20 NM-
FLAGLER BEACH TO COCOA BEACH 20 NM TO 60 NM OFFSHORE-
FLAGLER BEACH TO COCOA BEACH OUT TO 20 NM-INDIAN RIVER-
INLAND VOLUSIA-MARTIN-NORTHERN BREVARD-NORTHERN LAKE-OKEECHOBEE-
ORANGE-OSCEOLA-SEMINOLE-SOUTHERN BREVARD-SOUTHERN LAKE-ST. LUCIE-
555 AM EDT TUE MAY 3 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...

...THUNDERSTORM IMPACT...
DAYTIME HEATING COUPLED WITH AFTERNOON SEA BREEZES AND LINGERING
MOISTURE FROM A STALLED FRONTAL BOUNDARY SOUTH OF LAKE OKEECHOBEE
WILL COMBINE TO PRODUCE AFTERNOON SHOWERS AND LIGHTNING STORMS ACROSS
EAST CENTRAL FLORIDA. MOST OF THE STORMS WILL OCCUR SOUTH OF
ORLANDO AND TITUSVILLE...WITH THE BEST CHANCE OVER THE COUNTIES
NEAR LAKE OKEECHOBEE.

DEADLY CLOUD TO GROUND LIGHTNING WILL BE THE BIGGEST STORM THREAT
TODAY.

...FLOOD IMPACT...
WITH WEAK STEERING WINDS IN PLACE...A FEW STORMS COULD PRODUCE AS
MUCH AS AROUND TWO INCHES OF RAINFALL IN ABOUT A ONE HOUR PERIOD
...ESPECIALLY NEAR LAKE OKEECHOBEE. THIS COULD RESULT IN PONDING
OF WATER ON ROADS AND IN LOWER LYING AREAS.

.DAYS TWO THROUGH SEVEN...
THE THREAT FOR STORMS WILL REMAIN IN PLACE ACROSS EAST CENTRAL
FLORIDA THROUGH FRIDAY. IN ADDITION TO VERY HEAVY RAINFALL AND
LIGHTNING...SOME OF THE STORMS ON THURSDAY COULD PRODUCE DAMAGING
WIND GUSTS AND POSSIBLY HAIL AS WELL.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

CRISTALDI

In the hours before

Special weather statement, May 3, 1:38 PM EDT, 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
138 PM EDT TUE MAY 3 2005

FLZ064-031815-
MARTIN-
138 PM EDT TUE MAY 3 2005

...STRONG STORM MOVING INTO SOUTHEASTERN MARTIN COUNTY...

AT 135 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STORM CAPABLE OF PRODUCING STRONG WIND GUSTS...FREQUENT LIGHTNING...
TORRENTIAL DOWNPOURS AND POSSIBLY HAIL AROUND 10 MILES SOUTHWEST OF
JOHNATHAN DICKINSON STATE PARK...MOVING NORTHEAST AT 15 MPH.

LOCATIONS IN THE PATH OF THE STORM IN EASTERN MARTIN COUNTY INCLUDE
JOHNATHON DICKINSON STATE PARK AND HOBE SOUND.

IF THE STORM STRENGTHENS FURTHER...A WARNING WILL BE ISSUED.

52

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 2:03 PM EDTSpecial Marine WarningMLB57 min
May 3, 3:53 PM EDTSevere Thunderstorm WarningMLBOkeechobee45 min
May 3, 5:43 PM EDTSevere Thunderstorm WarningMLBOkeechobee47 min
May 3, 5:50 PM EDTSevere Thunderstorm WarningMLBOsceola55 min
May 3, 6:33 PM EDTSevere Thunderstorm WarningMLBIndian River, Okeechobee40 min
May 3, 6:48 PM EDTSevere Thunderstorm WarningMLBOsceola27 min

Nearby

Severe Thunderstorm Warnings in Florida, 2005Every severe thunderstorm warning in 2005

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.