Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Melbourne, FL

June 8, 2018Volusia County, Florida

NWS Melbourne, FL issued this special weather statement at Jun 8, 2018, 3:13 PM EDT for Volusia County, Florida. It was in force for 32 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 8, 2018, 3:13 PM EDT (19:13 UTC)
Expired
Jun 8, 2018, 3:45 PM EDT
In force
32 min
Issued by
NWS Melbourne, FL

County Volusia County, FL

The radar

The Melbourne radar (KMLB), 111 km from the middle of the area, began a volume at 19:12 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, 7.2 hours before the alert went out and 81 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 2018-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 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 2018-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
111 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
1351 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
-30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 8, 10:25 AM EDT, 4 hours 48 minutes earlier.

Area forecast discussion, Jun 8, 10:25 AM EDT, 4 hours 48 minutes before
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  <meta charset="utf-8">
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</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jun 8, 11:16 AM EDT, 3 hours 57 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
1116 AM EDT Fri Jun 8 2018

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-090000-
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-
1116 AM EDT Fri Jun 8 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
A mid to upper level low over the eastern Gulf of Mexico will provide
cool and dry air aloft across the area today.  This will lead to
very unstable conditions during daytime heating, so scattered strong
thunderstorms will develop this afternoon and extend into evening.

Short range models suggest scattered storms will form along the east
coast sea breeze early this afternoon, especially along the Space
and Treasure Coasts, while west coast sea breeze storms move inland
towards Lake county.  A merger of the east and west coast boundaries
should ignite the strongest storms near the Interstate 4 corridor
late in the afternoon or early in the evening.

The main hazard will be frequent lightning strikes with some of the
storms.  A few storms could become severe and produce large hail and
damaging winds.

Those with outside activities should seek shelter as skies darken to
the west or thunder is heard in the distance.

.FLOOD IMPACT...
Quick 2 or 3 inch downpours are possible with stronger and slower
moving storms. This will produce considerable ponding of water on
roadways and other poorly drained surfaces.

.MARINE THUNDERSTORM GUST IMPACT...
Scattered strong storms are forecast to develop as the east and west
coast boundaries collide near the Interstate 4 corridor late this
afternoon.  These storms could then push back to the east coast from
about Cape Canaveral northward.  Strong wind gusts in excess of 40
knots will be possible with these storms.

Mariners should seek safe harbor well in advance of storms expected
in the afternoon and evening hours. Motion of the stronger storms
should be to the east around 10 knots, but very gusty winds will
rush out well ahead of the heavy rain and lightning.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
Scattered storms are expected well into the upcoming week.  A few
will produce locally heavy rainfall, strong wind gusts and frequent
lightning strikes each afternoon and evening.

.SPOTTER INFORMATION STATEMENT...
Spotters are requested to monitor the weather this afternoon and
evening and self activate if needed.

If severe wind or hail is observed please relay your report to
the National Weather Service in Melbourne at 3 2 1 2 5 5 0 2 1 2.

Lascody

In the hours before

Special weather statement, Jun 8, 3:13 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Melbourne FL
313 PM EDT FRI JUN 8 2018

FLZ141-081945-
Coastal Volusia-
313 PM EDT FRI JUN 8 2018

...A STORM WITH THE POTENTIAL OF DEVELOPING FUNNEL CLOUDS WILL AFFECT
EAST CENTRAL VOLUSIA COUNTY...

At 312 PM EDT, a strong thunderstorm was located near New Smyrna
Beach, moving southeast at around 5 to 10 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Port Orange, New Smyrna Beach, Edgewater, South Daytona and Daytona
Beach Shores.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify so be certain to monitor local radio
stations and available television stations for additional
information and possible warnings from the National Weather Service.

Funnel clouds can occasionally touch down and produce brief small
tornadoes. Move indoors and stay away from windows.

LAT...LON 2913 8091 2909 8090 2902 8085 2891 8095
      2903 8106 2907 8108 2908 8107 2917 8097
TIME...MOT...LOC 1912Z 316DEG 11KT 2906 8098

Sedlock

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 8:00 PM EDTAreal Flood AdvisoryMLBOsceola90 min
Jun 7, 8:02 PM EDTSpecial Weather StatementMLBBrevard28 min
Jun 7, 9:02 PM EDTAreal Flood AdvisoryMLBBrevard88 min
Jun 8, 1:25 PM EDTAreal Flood AdvisoryMLBMartin95 min
Jun 8, 3:26 PM EDTSpecial Marine WarningMLB94 min
Jun 8, 3:36 PM EDTSpecial Weather StatementMLBLake24 min
Jun 8, 3:41 PM EDTAreal Flood AdvisoryMLBVolusia2 hr
Jun 8, 3:41 PM EDTSpecial Weather StatementMLBVolusia49 min
Jun 8, 3:56 PM EDTSevere Thunderstorm WarningMLBLake, Orange34 min
Jun 8, 4:16 PM EDTSpecial Weather StatementMLBOrange44 min
Jun 8, 4:19 PM EDTSpecial Weather StatementMLBVolusia41 min
Jun 8, 4:25 PM EDTAreal Flood AdvisoryMLBVolusia2 hr
Jun 8, 4:36 PM EDTSpecial Weather StatementMLBOkeechobee39 min
Jun 8, 5:10 PM EDTSpecial Weather StatementMLBOrange, Osceola65 min
Jun 8, 5:11 PM EDTSpecial Weather StatementMLBSeminole34 min
Jun 8, 5:25 PM EDTSpecial Marine WarningMLB3 hr
Jun 8, 5:34 PM EDTSpecial Weather StatementMLBOkeechobee26 min
Jun 8, 5:41 PM EDTSevere Thunderstorm WarningMLBOsceola34 min
Jun 8, 5:53 PM EDTSpecial Marine WarningMLB3 hr
Jun 8, 5:53 PM EDTSpecial Weather StatementMLBBrevard52 min
Jun 8, 6:12 PM EDTSevere Thunderstorm WarningMLBBrevard, Osceola48 min
Jun 8, 6:15 PM EDTSevere Thunderstorm WarningMLBBrevard30 min
Jun 8, 6:41 PM EDTSevere Thunderstorm WarningMLBBrevard34 min
Jun 8, 7:17 PM EDTSpecial Marine WarningMLB58 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.