Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Melbourne, FL

March 28, 2016Indian River County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 28, 2016, 4:06 PM EDT for Indian River County, Florida. It was in force for 24 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, 4:06 PM EDT (20:06 UTC)
Expired: Mar 28, 2016, 4:30 PM EDT
In force: 24 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), 46 km from the middle of the area, began a volume at 20:09 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, 8.1 hours before the alert went out and 89 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: 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.

908 
WUUS52 KMLB 282006
SVRMLB
FLC061-282030-
/O.NEW.KMLB.SV.W.0021.160328T2006Z-160328T2030Z/

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

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

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

* UNTIL 430 PM EDT

* AT 405 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BLUE CYPRESS
  LAKE...MOVING EAST 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...
  FELLSMERE AND BLUE CYPRESS LAKE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

LARGE HAIL AND DAMAGING WINDS AND FREQUENT CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURE'S LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

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

&&

LAT...LON 2762 8066 2767 8087 2773 8087 2773 8088
      2778 8088 2782 8058
TIME...MOT...LOC 2005Z 267DEG 33KT 2773 8079 

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

KELLY

1 follow-up statement

136 
WWUS52 KMLB 282028
SVSMLB

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

FLC061-282037-
/O.EXP.KMLB.SV.W.0021.000000T0000Z-160328T2030Z/
INDIAN RIVER FL-
428 PM EDT MON MAR 28 2016

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN INDIAN RIVER COUNTY
WILL EXPIRE AT 430 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HEAVY RAIN WILL
CONTINUE NEAR FELLSMERE THROUGH 5 PM.

LAT...LON 2762 8066 2767 8087 2773 8087 2773 8088
      2778 8088 2782 8058
TIME...MOT...LOC 2025Z 267DEG 33KT 2773 8079 

$$

KELLY

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 1:29 PM EDT	Special Weather Statement	MLB	Orange	46 min
Mar 28, 3:04 PM EDT	Special Weather Statement	MLB	Indian River	41 min
Mar 28, 3:16 PM EDT	Special Marine Warning	MLB		59 min
Mar 28, 3:16 PM EDT	Severe Thunderstorm Warning	MLB	Indian River	30 min
Mar 28, 3:44 PM EDT	Special Weather Statement	MLB	Saint Lucie	46 min
Mar 28, 4:13 PM EDT	Special Marine Warning	MLB		62 min
Mar 28, 4:22 PM EDT	Special Weather Statement	MLB	Saint Lucie	38 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.