Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Melbourne, FL

June 10, 2018Lake County, Florida

NWS Melbourne, FL issued this special weather statement at Jun 10, 2018, 12:48 PM EDT for Lake County, Florida. It was in force for 57 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
Jun 10, 2018, 12:48 PM EDT (16:48 UTC)
Expired
Jun 10, 2018, 1:45 PM EDT
In force
57 min
Issued by
NWS Melbourne, FL

County Lake County, FL

The radar

The Melbourne radar (KMLB), 137 km from the middle of the area, began a volume at 16:50 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, 4.8 hours before the alert went out and 123 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 2018-06-10Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 12:00Z on 2018-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
495 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
1165 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before this special weather statement went out at Jun 10, 10:05 AM EDT, 2 hours 43 minutes earlier.

Area forecast discussion, Jun 10, 10:05 AM EDT, 2 hours 43 minutes before
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Hazardous weather outlook, Jun 10, 11:22 AM EDT, 1 hour 26 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
1122 AM EDT Sun Jun 10 2018

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-110000-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia County-
Northern Lake County-Orange-Seminole-Southern Brevard County-
Osceola-Indian River-Okeechobee-St. Lucie-Martin-
Coastal Volusia County-Southern Lake County-
Northern Brevard County-
1122 AM EDT Sun Jun 10 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
The highest moisture early this morning was from Okeechobee to the
Treasure Coast, and also north of Orlando to Daytona Beach and Lake
George.  These areas should have initiation of isolated to scattered
lightning storms during the early to mid afternoon.  Storms on the
east coast sea breeze will propagate inland of the Treasure Coast
through late afternoon, while those on the west coast sea breeze
will move eastward and affect Lake county to Volusia county.  Late
day boundary interactions should lead to isolated storms lingering
into early evening from around Cape Canaveral to metro Orlando.

A few stronger storms will be capable of producing locally heavy
rainfall, gusty winds to 45 mph and frequent lightning strikes.
If thunder is heard, head indoors into a sturdy structure.

.MARINE THUNDERSTORM GUST IMPACT...
A few strong storms will develop over the mainland this afternoon
and move east at 10 to 15 mph.  They are expected to affect the
intracoastal and nearshore Atlantic waters from about Cape Canaveral
northward. Gusty winds in excess of 35 knots will be possible.
Mariners should be prepared to seek safe harbor near the coast as
well as across inland lakes this afternoon and evening.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
Isolated to scattered storms will develop each afternoon and evening
along sea breeze and outflow boundaries.  Locally heavy rainfall,
gusty winds and frequent lightning strikes will occur with some
storms.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected this afternoon.

Lascody/Volkmer

In the hours before

Special weather statement, Jun 10, 12:48 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 10:12 PM EDTSpecial Marine WarningMLB88 min
Jun 10, 5:54 PM EDTSpecial Weather StatementMLBIndian River51 min
Jun 10, 6:24 PM EDTSpecial Weather StatementMLBOrange66 min
Jun 10, 6:30 PM EDTSpecial Weather StatementMLBOsceola60 min
Jun 10, 7:21 PM EDTSpecial Weather StatementMLBOrange54 min
Jun 10, 7:49 PM EDTSpecial Weather StatementMLBSeminole56 min

Nearby

Special Weather Statements in Florida, 2018Every special weather statement in 2018

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.