Alert archive / Florida / Special Weather Statements in 2019

Special Weather Statement, NWS Melbourne, FL

August 7, 2019Brevard County, Florida

NWS Melbourne, FL issued this special weather statement at Aug 7, 2019, 1:15 PM EDT for Brevard County, Florida. It was in force for 30 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
Aug 7, 2019, 1:15 PM EDT (17:15 UTC)
Expired
Aug 7, 2019, 1:45 PM EDT
In force
30 min
Issued by
NWS Melbourne, FL

County Brevard County, FL

The radar

The Melbourne radar (KMLB), 4 km from the middle of the area, began a volume at 17:17 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, 5.3 hours before the alert went out and 43 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 2019-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1307 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 2019-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1307 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
17 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 Aug 7, 10:00 AM EDT, 3 hours 15 minutes earlier.

Area forecast discussion, Aug 7, 10:00 AM EDT, 3 hours 15 minutes before
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</head>
<body>
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    <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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        Please try again in a few minutes.
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Hazardous weather outlook, Aug 7, 11:04 AM EDT, 2 hours 11 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
1104 AM EDT Wed Aug 7 2019

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-080315-
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-
Northern Lake-Orange-Seminole-Southern Brevard-Osceola-
Indian River-Okeechobee-St. Lucie-Martin-Coastal Volusia-
Southern Lake-Northern Brevard-
1104 AM EDT Wed Aug 7 2019

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
Deep moisture and a slightly stronger westerly steering flow will
produce another day of scattered to numerous lightning storms
across east central Florida. The strongest storms should occur
near the coast this afternoon associated with the east coast sea
breeze boundary over Brevard, Indian River, Saint Lucie and Martin
counties. The primary threats will be frequent lightning strikes
and gusty winds up to 50 mph. A few funnel clouds will also be
possible which could briefly touch down on land or water.

.FLOOD IMPACT...
Local heavy rain will occur again today over portions of east
central Florida. The best chance will be over Brevard, Indian
River, Saint Lucie and Martin counties where a few spots could
see up to 3 inches of rain. Areas that have seen heavy rainfall
over the last several days are most vulnerable to minor flooding
this afternoon.

.RIP CURRENT IMPACT...
A long period background swell will generate a moderate rip
current threat along area beaches, primarily north of Sebastian
Inlet. Remember to always swim near a lifeguard and do not swim
alone. Do not be misled if there is little to no surf at the beach
as rip currents typically occur beneath the waves.

.MARINE THUNDERSTORM GUST IMPACT...
Scattered to numerous lightning storms will push East at 10 to 15
knots across the inland lakes. These storms will collide with the
east coast sea breeze near the coast this afternoon and produce a
few strong storms over the intracoastal and nearshore Atlantic
waters. Frequent cloud to water lightning and wind gusts of 35 to
45 knots will be possible.

.RIVER FLOOD IMPACT...
The St Johns River near Astor remains near Action Stage of 2 feet.
The river is forecast to remain near this level through the
weekend. When Action Stage is reached near Astor, water begins to
move into yards and covers boat ramps in low lying areas along
the river.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

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

Bragaw

In the hours before

Special weather statement, Aug 7, 1:15 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Melbourne FL
115 PM EDT Wed Aug 7 2019

FLZ047-071745-
Southern Brevard County FL-
115 PM EDT Wed Aug 7 2019

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL BREVARD COUNTY UNTIL
145 PM EDT...

At 114 PM EDT, Doppler radar was tracking a strong thunderstorm near
Camp Holly Fish Camp, moving east at 20 mph.

Wind gusts up to 50 mph will be possible with this storm.

Locations impacted include...
Melbourne, West Melbourne, Satellite Beach, Indialantic and Camp
Holly Fish Camp.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

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.

&&

LAT...LON 2805 8078 2821 8081 2826 8057 2805 8053
TIME...MOT...LOC 1714Z 268DEG 15KT 2813 8073

Rodriguez

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 8:03 PM EDTAreal Flood AdvisoryMLBLake87 min
Aug 7, 12:40 PM EDTSpecial Marine WarningMLB2 hr
Aug 7, 1:27 PM EDTAreal Flood AdvisoryMLBBrevard63 min
Aug 7, 4:25 PM EDTAreal Flood AdvisoryMLBBrevard, Orange, Osceola, Seminole, Volusia69 min
Aug 7, 4:36 PM EDTSpecial Weather StatementMLBOrange24 min

Nearby

Special Weather Statements in Florida, 2019Every special weather statement in 2019

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.