Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 32, NWS Melbourne, FL

April 15, 2016Martin County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Apr 15, 2016, 4:39 PM EDT for Martin County, Florida. It was in force for 36 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
Apr 15, 2016, 4:39 PM EDT (20:39 UTC)
Expired
Apr 15, 2016, 5:15 PM EDT
In force
36 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Martin County, FL

The radar

The Melbourne radar (KMLB), 130 km from the middle of the area, began a volume at 20:43 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
Apr 15, 3:14 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Miami, FL (KMFL), launched 12:00Z, 8.7 hours before the alert went out and 137 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 2016-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 785 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 2016-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.19395878Sfc1 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
785 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
856 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

As transmitted.

429 
WUUS52 KMLB 152039
SVRMLB
FLC085-152115-
/O.NEW.KMLB.SV.W.0032.160415T2039Z-160415T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
439 PM EDT FRI APR 15 2016

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN MARTIN COUNTY IN EAST CENTRAL FLORIDA...

* UNTIL 515 PM EDT

* AT 439 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER HOBE SOUND
  BEACH...OR OVER HOBE SOUND...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...
  JUPITER ISLAND...HOBE SOUND...JONATHAN DICKINSON STATE PARK AND HOBE
  SOUND BEACH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2701 8008 2700 8018 2709 8021 2710 8010
      2703 8008
TIME...MOT...LOC 2039Z 259DEG 23KT 2706 8012 

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

15
1 follow-up statement
425 
WWUS52 KMLB 152059
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
459 PM EDT FRI APR 15 2016

FLC085-152115-
/O.CON.KMLB.SV.W.0032.000000T0000Z-160415T2115Z/
MARTIN FL-
459 PM EDT FRI APR 15 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR EASTERN MARTIN COUNTY...

AT 457 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES EAST OF HOBE
SOUND BEACH...OR 8 MILES NORTHEAST OF JUPITER ISLAND...MOVING EAST
AT 15 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...
JUPITER ISLAND...HOBE SOUND AND JONATHAN DICKINSON STATE PARK. 

AN ADDITIONAL SEVERE THUNDERSTORMS WARNING IS IN EFFECT FOR FAR
SOUTHEASTERN MARTIN COUNTY THROUGH 530 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2701 8008 2700 8018 2705 8015 2706 8009
      2703 8008
TIME...MOT...LOC 2057Z 259DEG 23KT 2708 7999 

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

15

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 8:27 PM EDTSevere Thunderstorm WarningMLBOkeechobee, Osceola46 min
Apr 14, 8:33 PM EDTSevere Thunderstorm WarningMLBIndian River44 min
Apr 14, 9:29 PM EDTSevere Thunderstorm WarningMLBOkeechobee, Saint Lucie46 min
Apr 14, 10:35 PM EDTSpecial Marine WarningMLB55 min
Apr 14, 10:37 PM EDTSpecial Weather StatementMLBSaint Lucie23 min
Apr 15, 3:59 AM EDTSmall Craft AdvisoryMLB4 days
Apr 15, 2:37 PM EDTSpecial Weather StatementMLBMartin, Okeechobee, Saint Lucie53 min
Apr 15, 2:49 PM EDTSpecial Weather StatementMLBIndian River56 min
Apr 15, 2:54 PM EDTSpecial Marine WarningMLB51 min
Apr 15, 3:23 PM EDTSpecial Weather StatementMLBSaint Lucie67 min
Apr 15, 3:41 PM EDTSevere Thunderstorm WarningMLBSaint Lucie49 min
Apr 15, 3:51 PM EDTSpecial Marine WarningMLB54 min
Apr 15, 4:09 PM EDTSpecial Weather StatementMLBOsceola51 min
Apr 15, 4:21 PM EDTCoastal Flood WatchMLBVolusia6 hr
Apr 15, 4:24 PM EDTSpecial Marine WarningMLB66 min
Apr 15, 4:25 PM EDTSpecial Weather StatementMLBMartin50 min
Apr 15, 4:31 PM EDTSpecial Weather StatementMLBOkeechobee59 min
Apr 15, 4:37 PM EDTSpecial Weather StatementMLBSaint Lucie53 min
Apr 15, 4:42 PM EDTSevere Thunderstorm WarningMLBSaint Lucie63 min
Apr 15, 4:46 PM EDTAreal Flood AdvisoryMLBSaint Lucie119 min
Apr 15, 4:55 PM EDTSevere Thunderstorm WarningMLBMartin35 min
Apr 15, 5:00 PM EDTSpecial Marine WarningMLB60 min
Apr 15, 5:02 PM EDTSevere Thunderstorm WarningMLBIndian River, Saint Lucie40 min
Apr 15, 5:08 PM EDTSevere Thunderstorm WarningMLBMartin, Saint Lucie35 min
Apr 15, 5:20 PM EDTSpecial Weather StatementMLBIndian River55 min
Apr 15, 5:56 PM EDTSpecial Weather StatementMLBLake64 min
Apr 15, 6:05 PM EDTAreal Flood AdvisoryMLBOsceola115 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.