Alert archive / Florida / Tornado Warnings in 2010

Tornado Warning 2, NWS Melbourne, FL

January 21, 2010Volusia County, Florida

NWS Melbourne, FL issued this tornado warning at Jan 21, 2010, 4:35 PM EST for Volusia County, Florida. It was in force for 25 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
Jan 21, 2010, 4:35 PM EST (21:35 UTC)
Expired
Jan 21, 2010, 5:00 PM EST
In force
25 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon

County Volusia County, FL

The radar

The Jacksonville radar (KJAX), 138 km from the middle of the area, began a volume at 21:38 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 9.6 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 12:00Z on 2010-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 47 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 2010-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 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
47 J/kg
Mixed-layer CIN
-195 J/kg
Mixed-layer LCL
1301 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
193 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.

258 
WFUS52 KMLB 212135
TORMLB
FLC127-212200-
/O.NEW.KMLB.TO.W.0002.100121T2135Z-100121T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
435 PM EST THU JAN 21 2010

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL VOLUSIA COUNTY IN FLORIDA...
  THIS INCLUDES THE CITY OF ORMOND BEACH...

* UNTIL 500 PM EST.

* AT 432 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 14 MILES WEST OF
  ORMOND BY THE SEA...MOVING EAST AT 45 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  TOMOKA ESTATES...TOMOKA STATE PARK...AND INTERSTATE 95 BETWEEN     
  MILE MARKERS 273 AND 280

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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

&&

LAT...LON 2940 8107 2932 8104 2927 8102 2926 8110
      2926 8115 2941 8116 2943 8115 2943 8111
      2943 8109
TIME...MOT...LOC 2134Z 255DEG 37KT 2937 8128

$$


MOSES
2 follow-up statements
133 
WWUS52 KMLB 212150
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
450 PM EST THU JAN 21 2010

FLC127-212200-
/O.CON.KMLB.TO.W.0002.000000T0000Z-100121T2200Z/
VOLUSIA-
450 PM EST THU JAN 21 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EST FOR EXTREME
NORTH CENTRAL VOLUSIA COUNTY...

AT 442 PM EST...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO 
DETECT A TORNADO.  THIS TORNADO WAS LOCATED 11 MILES NORTHWEST OF 
ORMOND BEACH...MOVING EAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TOMOKA 
ESTATES...ORMOND BY THE SEA...US 1 NEAR THE INTERSECTION WITH I95 
AND A1A.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR
HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER
YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 2940 8107 2932 8104 2927 8102 2926 8110
      2926 8115 2941 8116 2943 8115 2943 8111
      2943 8109
TIME...MOT...LOC 2148Z 255DEG 37KT 2941 8112

$$


MOSES
163 
WWUS52 KMLB 212202
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
502 PM EST THU JAN 21 2010

FLC127-212212-
/O.EXP.KMLB.TO.W.0002.000000T0000Z-100121T2200Z/
VOLUSIA-
502 PM EST THU JAN 21 2010

...THE TORNADO WARNING FOR EXTREME NORTH CENTRAL VOLUSIA COUNTY NEAR 
ORMOND BY THE SEA HAS EXPIRED...

THE SEVERE STORM THAT PROMPTED THE WARNING HAS MOVED OFFSHORE INTO 
THE NEARSHORE ATLANTIC WATERS EAST OF ORMOND BY THE SEA...THUS THE 
WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 2940 8107 2932 8104 2927 8102 2926 8110
      2926 8115 2941 8116 2943 8115 2943 8111
      2943 8109
TIME...MOT...LOC 2150Z 255DEG 37KT 2941 8110

$$


MOSES

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 3:43 AM ESTLake Wind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia15 hr
Jan 21, 3:00 PM ESTSpecial Marine WarningMLB90 min
Jan 21, 3:02 PM ESTTornado WarningMLBVolusia12 min
Jan 21, 3:29 PM ESTSpecial Marine WarningMLB91 min
Jan 21, 3:54 PM ESTSevere Thunderstorm WarningMLBOrange, Seminole, Volusia28 min
Jan 21, 4:40 PM ESTTornado WarningMLBVolusia50 min
Jan 21, 4:45 PM ESTSpecial Marine WarningMLB2 hr
Jan 21, 5:41 PM ESTSevere Thunderstorm WarningMLBLake, Volusia49 min
Jan 21, 6:28 PM ESTSevere Thunderstorm WarningMLBVolusia51 min
Jan 21, 6:55 PM ESTSpecial Marine WarningMLB95 min

Nearby

Tornado Warnings in Florida, 2010Every tornado warning in 2010Tornadoes in 2010

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.