Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 9, NWS Melbourne, FL

February 24, 2016Indian River County, Saint Lucie County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Feb 24, 2016, 12:37 PM EST for Indian River County, Saint Lucie County, Florida. It was in force for 23 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Feb 24, 2016, 12:37 PM EST (17:37 UTC)
Expired: Feb 24, 2016, 1:00 PM EST
In force: 23 min
Issued by: NWS Melbourne, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Indian River County, FL, Saint Lucie County, FL

The radar

The Melbourne radar (KMLB), 51 km from the middle of the area, began a volume at 17:39 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.

What was reported inside it

Time	Report	Where	Remark
Feb 24, 12:50 PM EST	FUNNEL CLOUD	3 Sw Gifford, FL	SEVERAL PUBLIC REPORTS OF FUNNEL CLOUD SIGHTINGS IN VERO BEACH. NO CONFIRMATION OF TOUCHDOWN OR DAMAGE AT THIS TIME.
Feb 24, 12:50 PM EST	TSTM WND GST 43	Vero Beach Airport, FL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 5.6 hours before the alert went out and 86 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 245 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 227 m²/s²
0-3 km storm-relative helicity: 273 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

367 
WUUS52 KMLB 241737
SVRMLB
FLC061-111-241800-
/O.NEW.KMLB.SV.W.0009.160224T1737Z-160224T1800Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1237 PM EST WED FEB 24 2016

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL ST. LUCIE COUNTY IN EAST CENTRAL FLORIDA...
  EASTERN INDIAN RIVER COUNTY IN EAST CENTRAL FLORIDA...

* UNTIL 100 PM EST

* AT 1236 PM EST...A SEVERE THUNDERSTORM WAS LOCATED NEAR POINTE WEST...
  OR NEAR VERO BEACH SOUTH...MOVING NORTHEAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  SEBASTIAN...VERO BEACH...INDIAN RIVER SHORES...SEBASTIAN HIGHLANDS AND
  WINTER BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 2758 8033 2766 8037 2756 8036 2749 8051
      2760 8064 2782 8047 2766 8038 2773 8040
      2775 8042 2777 8042 2779 8044 2780 8043
      2781 8045 2786 8045
TIME...MOT...LOC 1736Z 239DEG 29KT 2758 8052 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

ULRICH

1 follow-up statement

884 
WWUS52 KMLB 241748
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
1248 PM EST WED FEB 24 2016

FLC111-241757-
/O.CAN.KMLB.SV.W.0009.000000T0000Z-160224T1800Z/
ST. LUCIE FL-
1248 PM EST WED FEB 24 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ST. LUCIE COUNTY
IS CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
ST. LUCIE COUNTY AND INTO INDIAN RIVER COUNTY THEREFORE THE WARNING
HAS BEEN CANCELLED.

LAT...LON 2758 8033 2766 8037 2756 8036 2756 8050
      2763 8055 2779 8046 2766 8038 2773 8040
      2775 8042 2777 8042 2779 8044 2780 8043
      2781 8045 2786 8045
TIME...MOT...LOC 1747Z 239DEG 29KT 2763 8043 

$$

FLC061-241800-
/O.CON.KMLB.SV.W.0009.000000T0000Z-160224T1800Z/
INDIAN RIVER FL-
1248 PM EST WED FEB 24 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM EST
FOR EASTERN INDIAN RIVER COUNTY...

AT 1247 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM NEAR VERO BEACH...MOVING NORTHEAST AT
35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO 
         ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
SEBASTIAN...VERO BEACH...INDIAN RIVER SHORES...WINTER BEACH AND WABASSO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 2758 8033 2766 8037 2756 8036 2756 8050
      2763 8055 2779 8046 2766 8038 2773 8040
      2775 8042 2777 8042 2779 8044 2780 8043
      2781 8045 2786 8045
TIME...MOT...LOC 1747Z 239DEG 29KT 2763 8043 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

ULRICH

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 2:35 AM EST	Wind Advisory	MLB	Lake, Okeechobee, Orange, Osceola, Seminole, Volusia	15 hr
Feb 24, 3:15 AM EST	Gale Warning	MLB		31 hr
Feb 24, 9:57 AM EST	Special Weather Statement	MLB	Orange	63 min
Feb 24, 12:24 PM EST	Special Weather Statement	MLB	Indian River	51 min
Feb 24, 12:29 PM EST	Special Marine Warning	MLB		61 min
Feb 24, 12:54 PM EST	Tornado Warning	MLB	Indian River	14 min
Feb 24, 1:05 PM EST	Special Weather Statement	MLB	Lake, Orange, Seminole, Volusia	55 min
Feb 24, 2:02 PM EST	Special Marine Warning	MLB		118 min
Feb 24, 2:35 PM EST	Special Weather Statement	MLB	Indian River	10 min
Feb 24, 2:38 PM EST	Special Marine Warning	MLB		52 min
Feb 24, 3:35 PM EST	Special Weather Statement	MLB	Martin	55 min
Feb 24, 3:42 PM EST	Special Weather Statement	MLB	Martin, Okeechobee, Saint Lucie	93 min
Feb 24, 4:15 PM EST	Special Marine Warning	MLB		60 min
Feb 24, 5:16 PM EST	Special Weather Statement	MLB	Martin	59 min
Feb 24, 5:55 PM EST	Small Craft Advisory	MLB		40 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2016 Every severe thunderstorm warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.