Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 20, NWS Melbourne, FL

March 28, 2016Indian River County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 28, 2016, 3:16 PM EDT for Indian River 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
Mar 28, 2016, 3:16 PM EDT (19:16 UTC)
Expired
Mar 28, 2016, 3:46 PM EDT
In force
30 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Indian River County, FL

The radar

The Melbourne radar (KMLB), 55 km from the middle of the area, began a volume at 19:17 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, 7.3 hours before the alert went out and 93 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 2016-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 495 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 2016-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 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
495 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1011 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.1
Supercell composite
6.4

Open this sounding in Storm Lab

The text

As transmitted.

484 
WUUS52 KMLB 281916
SVRMLB
FLC061-282000-
/O.NEW.KMLB.SV.W.0020.160328T1916Z-160328T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
316 PM EDT MON MAR 28 2016

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 400 PM EDT

* AT 314 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR POINTE WEST...
  OR 7 MILES WEST OF GIFFORD...MOVING EAST AT 30 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...FELLSMERE...INDIAN RIVER SHORES AND WINTER
  BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 2756 8055 2756 8059 2771 8066 2782 8040
      2760 8030
TIME...MOT...LOC 1914Z 250DEG 26KT 2766 8054 

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

KELLY
2 follow-up statements
446 
WWUS52 KMLB 281930
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
330 PM EDT MON MAR 28 2016

FLC061-282000-
/O.CON.KMLB.SV.W.0020.000000T0000Z-160328T2000Z/
INDIAN RIVER FL-
330 PM EDT MON MAR 28 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHEASTERN INDIAN RIVER COUNTY...

AT 330 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER GIFFORD...MOVING
EAST AT 25 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...
VERO BEACH...INDIAN RIVER SHORES...WABASSO...WINTER BEACH AND VERO BEACH
SOUTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 2760 8031 2757 8049 2758 8052 2773 8052
      2777 8038 2764 8032 2760 8030
TIME...MOT...LOC 1930Z 257DEG 22KT 2766 8044 

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

KELLY
359 
WWUS52 KMLB 281946
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
346 PM EDT MON MAR 28 2016

FLC061-281955-
/O.CAN.KMLB.SV.W.0020.000000T0000Z-160328T2000Z/
INDIAN RIVER FL-
346 PM EDT MON MAR 28 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN INDIAN RIVER
COUNTY IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND HAVE EXITED THE WARNED AREA BY PUSHING OFFSHORE.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER LOCALLY HEAVY
RAIN IS STILL POSSIBLE WITH ADDITIONAL SHOWERS AND STORMS MOVING IN
FROM THE WEST.

LAT...LON 2760 8031 2757 8049 2758 8052 2773 8052
      2777 8038 2764 8032 2760 8030
TIME...MOT...LOC 1944Z 250DEG 26KT 2770 8032 

$$

KELLY

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 28, 1:29 PM EDTSpecial Weather StatementMLBOrange46 min
Mar 28, 3:04 PM EDTSpecial Weather StatementMLBIndian River41 min
Mar 28, 3:16 PM EDTSpecial Marine WarningMLB59 min
Mar 28, 3:44 PM EDTSpecial Weather StatementMLBSaint Lucie46 min
Mar 28, 4:06 PM EDTSevere Thunderstorm WarningMLBIndian River24 min
Mar 28, 4:13 PM EDTSpecial Marine WarningMLB62 min
Mar 28, 4:22 PM EDTSpecial Weather StatementMLBSaint Lucie38 min

Nearby

Severe Thunderstorm Warnings in Florida, 2016Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.