Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 55, NWS Melbourne, FL

July 15, 2016Lake County, Orange County, Florida

NWS Melbourne, FL issued this severe thunderstorm warning at Jul 15, 2016, 8:17 PM EDT for Lake County, Orange County, Florida. It was in force for 27 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
Jul 15, 2016, 8:17 PM EDT (00:17 UTC)
Expired
Jul 15, 2016, 8:44 PM EDT
In force
27 min
Issued by
NWS Melbourne, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Lake County, FL, Orange County, FL

The radar

The Tampa radar (KTBW), 128 km from the middle of the area, began a volume at 00:18 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

Tampa Bay, FL (KTBW), launched 00:00Z, 0.3 hours before the alert went out and 128 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, Tampa Bay, FL at 00:00Z on 2016-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 960 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, Tampa Bay, FL at 00:00Z on 2016-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.1939Sfc1 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
960 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
1582 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.1
Supercell composite
2.9

Open this sounding in Storm Lab

The text

As transmitted.

538 
WUUS52 KMLB 160017
SVRMLB
FLC069-095-160100-
/O.NEW.KMLB.SV.W.0055.160716T0017Z-160716T0100Z/

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

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN ORANGE COUNTY IN EAST CENTRAL FLORIDA...
  SOUTHWESTERN LAKE COUNTY IN EAST CENTRAL FLORIDA...

* UNTIL 900 PM EDT

* AT 817 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  CLERMONT...OR NEAR GROVELAND...MOVING NORTHWEST AT 5 MPH.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  APOPKA...EUSTIS...TAVARES...MOUNT DORA AND GROVELAND. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2895 8176 2880 8152 2844 8176 2855 8196
      2864 8196
TIME...MOT...LOC 0017Z 130DEG 6KT 2856 8179 

HAIL...0.75IN
WIND...60MPH
 
$$

WEITLICH
1 follow-up statement
289 
WWUS52 KMLB 160044
SVSMLB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MELBOURNE FL
844 PM EDT FRI JUL 15 2016

FLC069-095-160054-
/O.CAN.KMLB.SV.W.0055.000000T0000Z-160716T0100Z/
ORANGE FL-LAKE FL-
844 PM EDT FRI JUL 15 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ORANGE AND
SOUTHWESTERN LAKE COUNTIES IS CANCELLED...
                
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 HAS BEEN CANCELLED.  HOWEVER GUSTY WINDS AND
HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 2895 8176 2880 8152 2844 8176 2855 8196
      2864 8196
TIME...MOT...LOC 0042Z 130DEG 6KT 2859 8183 

$$

WEITLICH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 8:00 PM EDTSpecial Weather StatementMLBLake45 min
Jul 15, 8:49 PM EDTSpecial Weather StatementMLBLake41 min
Jul 16, 5:53 PM EDTSpecial Weather StatementMLBLake82 min
Jul 16, 7:16 PM EDTSpecial Weather StatementMLBLake59 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.