Alert archive / Florida / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 13, NWS Melbourne, FL

March 23, 2005Lake County, Orange County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 23, 2005, 6:17 AM EST for Lake County, Orange County, Florida. It was in force for 47 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
Mar 23, 2005, 6:17 AM EST (11:17 UTC)
Expired
Mar 23, 2005, 7:04 AM EST
In force
47 min
Issued by
NWS Melbourne, FL
Area
Counties, with a storm outline in the text

Counties Lake County, FL, Orange County, FL

The radar

The Melbourne radar (KMLB), 115 km from the middle of the area, began a volume at 11:20 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
Mar 23, 4:50 AM ESTTornado WatchSPC6 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 00:00Z, 11.3 hours before the alert went out and 115 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 2005-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3086 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 2005-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 square meters per square second.1939587897Sfc1 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
3086 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
287 m²/s²
Significant tornado parameter
4.3
Supercell composite
22.8

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KMLB 231119
SVRMLB
FLC069-095-231200-
/O.NEW.KMLB.SV.W.0013.050323T1117Z-050323T1200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
617 AM EST WED MAR 23 2005

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LAKE COUNTY IN EAST CENTRAL FLORIDA
  THIS INCLUDES THE CITIES OF...MOUNT PLYMOUTH...FERNDALE
  WESTERN ORANGE COUNTY IN EAST CENTRAL FLORIDA
  THIS INCLUDES THE CITIES OF...ZELLWOOD...WINTER PARK...WINTER      
  GARDEN...PINE HILLS...APOPKA

* UNTIL 700 AM EST

* AT 615 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR CLERMONT...OR ABOUT OVER   
  FERNDALE...AND MOVING EAST NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ZELLWOOD BY 635 AM EST
  APOPKA BY 640 AM EST
  FOREST CITY BY 645 AM EST
  WEKIWA SPRINGS STATE PARK BY 650 AM EST

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.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 2866 8187 2849 8180 2855 8132 2884 8145

$$

JP
2 follow-up statements
000 
WWUS52 KMLB 231146
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
645 AM EST WED MAR 23 2005

FLC069-095-231200-
/O.CON.KMLB.SV.W.0013.000000T0000Z-050323T1200Z/
ORANGE FL-LAKE FL-
645 AM EST WED MAR 23 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 700 AM EST FOR 
SOUTHERN LAKE AND WESTERN ORANGE COUNTIES...

AT 640 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH FREQUENT LIGHTNING AND HAIL. THIS STORM WAS LOCATED 
NEAR THE THEME PARKS TO WINTER GARDEN AND WINDERMERE...MOVING EAST 
AT 45 MPH.
  
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 2866 8187 2849 8180 2855 8132 2884 8145

$$

JP
000 
WWUS52 KMLB 231204
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
701 AM EST WED MAR 23 2005

FLC069-095-231211-
/O.EXP.KMLB.SV.W.0013.000000T0000Z-050323T1200Z/
ORANGE FL-LAKE FL-
701 AM EST WED MAR 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LAKE AND 
WESTERN ORANGE COUNTIES EXPIRED AT 700 AM EST...

AT 701 AM EST NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE 
THUNDERSTORM THAT PROMPTED THE WARNING IS NO LONGER SEVERE...BUT IS 
CAPABLE OF PRODUCING WIND GUSTS OF 40 TO 50 MPH...FREQUENT LIGHTNING 
AND SMALL HAIL. LOCATIONS FROM ORLANDO...OVIEDO AND WINTER SPRINGS 
WILL SEE STRONG STORMS THROUGH 8 AM. 

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE 
LATEST SEVERE WEATHER INFORMATION.

LAT...LON 2866 8187 2849 8180 2855 8132 2884 8145

$$

JP

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 22, 7:57 PM ESTSpecial Marine WarningMLB2 hr
Mar 23, 2:34 AM ESTSpecial Marine WarningMLB86 min
Mar 23, 5:57 AM ESTTornado WarningMLBLake33 min
Mar 23, 6:28 AM ESTSevere Thunderstorm WarningMLBVolusia32 min
Mar 23, 6:36 AM ESTSpecial Marine WarningMLB84 min
Mar 23, 7:10 AM ESTSpecial Marine WarningMLB95 min
Mar 23, 11:17 AM ESTSpecial Marine WarningMLB88 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.