Alert archive / Florida / Special Weather Statements in 2019

Special Weather Statement, NWS Melbourne, FL

October 19, 2019Osceola County, Florida

NWS Melbourne, FL issued this special weather statement at Oct 19, 2019, 6:30 AM EDT for Osceola County, Florida. It was in force for 45 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
Oct 19, 2019, 6:30 AM EDT (10:30 UTC)
Expired
Oct 19, 2019, 7:15 AM EDT
In force
45 min
Issued by
NWS Melbourne, FL

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 75 km from the middle of the area, began a volume at 10:30 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, 10.5 hours before the alert went out and 113 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 2019-10-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 491 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, Tampa Bay, FL at 00:00Z on 2019-10-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 310 square meters per square second.193958Sfc1 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
491 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
808 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
310 m²/s²
0-3 km storm-relative helicity
432 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.4

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 Oct 19, 4:35 AM EDT, 1 hour 55 minutes earlier.

Area forecast discussion, Oct 19, 4:35 AM EDT, 1 hour 55 minutes before
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Hazardous weather outlook, Oct 19, 4:45 AM EDT, 1 hour 45 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
445 AM EDT Sat Oct 19 2019

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-192000-
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-
445 AM EDT Sat Oct 19 2019

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

.THUNDERSTORM IMPACT...
Numerous showers and embedded storms are poised to affect the
area from this morning into afternoon with closest point of
approach of Tropical Storm Nestor to N FL today. Daytime heating
and abundant moisture will lead to the high coverage of showers
and embedded storms. Affected areas will see briefly heavy rains,
gusty winds to 40 to 50 mph, and occasional lightning through mid
afternoon. An isolated tornado will remain possible in any cells
which acquire rotation, especially this morning.

.FLOOD IMPACT...
Rain amounts up to one to two inches with isolated higher amounts
may occur into the early afternoon. Areas affected by multiple
storms may experience standing water with temporary minor flooding
of low spots and along roadways.

.MARINE THUNDERSTORM GUST IMPACT...
Isolated lightning storms and occasional squalls over the
Atlantic waters will be capable of producing wind gusts of 35 to
45 knots into early afternoon.

.WATERSPOUT IMPACT...
A few waterspouts will be possible over the intracoastal and
Atlantic coastal waters through early afternoon.

.WIND AND SEA IMPACT...
A Small Craft Advisory is in effect over the waters north of
Sebastian Inlet, with caution advertised for small craft south of
Sebastian Inlet.

.RIVER FLOOD IMPACT...
The Saint Johns River near Astor remains in Minor Flood stage and
is forecast to be in Minor Flood stage through this weekend with
only a very slow decline in levels expected through early next
week.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
Poor to potentially hazardous boating conditions over the
adjacent Atlantic waters are also expected Sunday. Persons should
continue to monitor the latest weather forecasts.

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

Pendergrast

In the hours before

Special weather statement, Oct 19, 12:58 AM EDT, 5 hours 32 minutes before
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Special weather statement, Oct 19, 2:00 AM EDT, 4 hours 30 minutes before
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Special weather statement, Oct 19, 3:00 AM EDT, 3 hours 30 minutes before
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Special weather statement, Oct 19, 4:00 AM EDT, 2 hours 30 minutes before
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Local storm report, Oct 19, 4:43 AM EDT, 1 hour 47 minutes before
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Special weather statement, Oct 19, 6:30 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 18, 10:33 PM EDTSpecial Marine WarningMLB57 min
Oct 18, 11:23 PM EDTSpecial Marine WarningMLB97 min
Oct 18, 11:35 PM EDTSpecial Weather StatementMLBLake, Orange40 min
Oct 19, 12:15 AM EDTSpecial Weather StatementMLBLake, Orange, Seminole45 min
Oct 19, 12:58 AM EDTSpecial Weather StatementMLBLake, Orange, Volusia62 min
Oct 19, 1:31 AM EDTSpecial Marine WarningMLB119 min
Oct 19, 2:00 AM EDTSpecial Weather StatementMLBLake, Orange, Seminole, Volusia60 min
Oct 19, 2:08 AM EDTAreal Flood AdvisoryMLBLake, Seminole, Volusia97 min
Oct 19, 3:00 AM EDTSpecial Weather StatementMLBVolusia60 min
Oct 19, 3:24 AM EDTSpecial Marine WarningMLB2 hr
Oct 19, 3:33 AM EDTAreal Flood AdvisoryMLBVolusia87 min
Oct 19, 4:00 AM EDTSpecial Weather StatementMLBVolusia45 min
Oct 19, 5:29 AM EDTSpecial Marine WarningMLB2 hr
Oct 19, 8:52 AM EDTAreal Flood AdvisoryMLBOrange, Osceola113 min
Oct 19, 10:41 AM EDTSpecial Weather StatementMLBOsceola34 min
Oct 19, 11:49 AM EDTSpecial Marine WarningMLB86 min
Oct 19, 12:16 PM EDTSpecial Weather StatementMLBOkeechobee29 min
Oct 19, 12:42 PM EDTSpecial Weather StatementMLBBrevard48 min
Oct 19, 1:05 PM EDTSpecial Marine WarningMLB85 min
Oct 19, 1:17 PM EDTSpecial Weather StatementMLBOkeechobee28 min
Oct 19, 1:42 PM EDTSpecial Weather StatementMLBBrevard18 min
Oct 19, 1:54 PM EDTSpecial Weather StatementMLBOkeechobee36 min
Oct 19, 2:35 PM EDTSevere Thunderstorm WarningMLBIndian River, Saint Lucie21 min
Oct 19, 3:33 PM EDTSpecial Weather StatementMLBMartin27 min
Oct 19, 4:16 PM EDTSpecial Weather StatementMLBSaint Lucie29 min
Oct 19, 4:29 PM EDTSpecial Weather StatementMLBMartin61 min
Oct 19, 4:33 PM EDTTornado WarningMLBSaint Lucie27 min
Oct 19, 4:43 PM EDTSpecial Marine WarningMLB62 min
Oct 19, 5:01 PM EDTSpecial Weather StatementMLBSaint Lucie44 min
Oct 19, 5:31 PM EDTSpecial Weather StatementMLBMartin44 min
Oct 19, 5:45 PM EDTSpecial Marine WarningMLB60 min
Oct 19, 5:50 PM EDTSevere Thunderstorm WarningMLBMartin22 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.