Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 18, NWS Melbourne, FL

March 26, 20164 counties in Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Mar 26, 2016, 6:59 PM EDT for 4 counties in Florida. It was in force for 61 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 26, 2016, 6:59 PM EDT (22:59 UTC)
Expired
Mar 26, 2016, 8:00 PM EDT
In force
61 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Lake County, FL, Orange County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 111 km from the middle of the area, began a volume at 23:03 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, 11.0 hours before the alert went out and 104 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 2016-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 963 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 2016-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
963 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1137 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

061 
WUUS52 KMLB 262259
SVRMLB
FLC069-095-117-127-270000-
/O.NEW.KMLB.SV.W.0018.160326T2259Z-160327T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
659 PM EDT SAT MAR 26 2016

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ORANGE COUNTY IN EAST CENTRAL FLORIDA...
  EAST CENTRAL LAKE COUNTY IN EAST CENTRAL FLORIDA...
  CENTRAL SEMINOLE COUNTY IN EAST CENTRAL FLORIDA...
  SOUTH CENTRAL VOLUSIA COUNTY IN EAST CENTRAL FLORIDA...

* UNTIL 800 PM EDT

* AT 658 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SORRENTO...OR
  NEAR MOUNT PLYMOUTH...MOVING EAST-NORTHEAST 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...
  DELTONA...SANFORD...APOPKA...ALTAMONTE SPRINGS AND WINTER SPRINGS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS 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.

&&

LAT...LON 2869 8169 2877 8173 2890 8172 2904 8124
      2871 8105 2868 8140
TIME...MOT...LOC 2258Z 238DEG 31KT 2889 8157 

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

SEDLOCK
2 follow-up statements
241 
WWUS52 KMLB 262328
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
728 PM EDT SAT MAR 26 2016

FLC095-262337-
/O.CAN.KMLB.SV.W.0018.000000T0000Z-160327T0000Z/
ORANGE FL-
728 PM EDT SAT MAR 26 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ORANGE COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED...
THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 2879 8165 2883 8165 2890 8157 2901 8134
      2904 8125 2879 8114
TIME...MOT...LOC 2327Z 286DEG 14KT 2881 8144 

$$

FLC069-117-127-270000-
/O.CON.KMLB.SV.W.0018.000000T0000Z-160327T0000Z/
LAKE FL-SEMINOLE FL-VOLUSIA FL-
728 PM EDT SAT MAR 26 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR EAST CENTRAL LAKE...NORTHWESTERN SEMINOLE AND SOUTH CENTRAL
VOLUSIA COUNTIES...

AT 727 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MOUNT PLYMOUTH...
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...
DELTONA...SANFORD...DELAND...EUSTIS AND MOUNT DORA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

CONTINUOUS 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.

&&

LAT...LON 2879 8165 2883 8165 2890 8157 2901 8134
      2904 8125 2879 8114
TIME...MOT...LOC 2327Z 286DEG 14KT 2881 8144 

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

SEDLOCK
302 
WWUS52 KMLB 262357
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
757 PM EDT SAT MAR 26 2016

FLC069-117-127-270006-
/O.EXP.KMLB.SV.W.0018.000000T0000Z-160327T0000Z/
LAKE FL-SEMINOLE FL-VOLUSIA FL-
757 PM EDT SAT MAR 26 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LAKE...
NORTHWESTERN SEMINOLE AND SOUTH CENTRAL VOLUSIA COUNTIES WILL EXPIRE
AT 800 PM EDT...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED JUST BELOW SEVERE
LIMITS AND WILL BE ALLOWED TO EXPIRE. HOWEVER... SMALL HAIL... GUSTY
WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 2879 8165 2883 8165 2890 8157 2901 8134
      2904 8125 2879 8114
TIME...MOT...LOC 2354Z 238DEG 31KT 2881 8144 

$$

SEDLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 8:18 PM EDTSpecial Marine WarningMLB87 min
Mar 25, 9:16 PM EDTAreal Flood AdvisoryMLBSaint Lucie59 min
Mar 26, 4:48 PM EDTSpecial Weather StatementMLBSeminole42 min
Mar 26, 4:50 PM EDTSpecial Weather StatementMLBLake55 min
Mar 26, 5:42 PM EDTSevere Thunderstorm WarningMLBOsceola63 min
Mar 26, 5:50 PM EDTSpecial Weather StatementMLBOrange55 min
Mar 26, 6:22 PM EDTSpecial Weather StatementMLBLake53 min
Mar 26, 6:43 PM EDTSpecial Weather StatementMLBOrange, Osceola, Seminole62 min
Mar 26, 6:53 PM EDTSpecial Weather StatementMLBLake, Volusia52 min
Mar 26, 7:22 PM EDTSevere Thunderstorm WarningMLBOsceola38 min
Mar 26, 7:53 PM EDTSpecial Weather StatementMLBSeminole52 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.