Alert archive / Florida / Special Weather Statements in 2018

Special Weather Statement, NWS Melbourne, FL

July 25, 2018Indian River County, Florida

NWS Melbourne, FL issued this special weather statement at Jul 25, 2018, 4:17 PM EDT for Indian River County, Florida. It was in force for 58 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 25, 2018, 4:17 PM EDT (20:17 UTC)
Expired: Jul 25, 2018, 5:15 PM EDT
In force: 58 min
Issued by: NWS Melbourne, FL

County Indian River County, FL

The radar

The Melbourne radar (KMLB), 43 km from the middle of the area, began a volume at 20:16 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, 8.3 hours before the alert went out and 85 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1491 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 765 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 82 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 Jul 25, 3:28 PM EDT, 49 minutes earlier.

Area forecast discussion, Jul 25, 3:28 PM EDT, 49 minutes before

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Hazardous weather outlook, Jul 25, 10:35 AM EDT, 5 hours 42 minutes before

Hazardous Weather Outlook...updated
National Weather Service Melbourne FL
1035 AM EDT Wed Jul 25 2018

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-260300-
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-
1035 AM EDT Wed Jul 25 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

.THUNDERSTORM IMPACT...
A moist southwest flow remains over the area which will produce
scattered lightning storms that will move across the Florida
peninsula. Cell motion will be toward the northeast at 20 to 25 mph.
The primary hazard will be frequent lightning strikes as well as
gusty winds up to 45 mph in the stronger storms.

If working or recreating outdoors and thunder is heard, seek
shelter in an enclosed building or automobile. Picnic shelters,
tents and golf carts offer no protection from lightning. Stay
away from water as it is an excellent conductor of electricity.

.RIP CURRENT IMPACT...
Lifeguard reports indicate that a small long period easterly swell
was generating a moderate rip current risk at area beaches. The
strongest seaward pull will be through late afternoon due to tidal
effects. Only swim in the ocean near a lifeguard.

.MARINE THUNDERSTORM GUST IMPACT...
Scattered lightning storms will move toward the northeast at 20
knots across inland lakes and across the intracoastal and nearshore
Atlantic waters. A few storms will produce frequent lightning
strikes and wind gusts of 35 to 40 knots which will likely prompt
Special Marine Warnings for portions of the coast.

.RIVER FLOOD IMPACT...
The Saint Johns River above Lake Harney near Geneva and at Astor
remain in Minor Flood Stage, and River Flood Warnings are in
effect for these areas. Sanford and Deland remain near or above
Action Stage. The river is forecast to remain steady or slightly
increase through the week.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
Scattered to numerous afternoon and evening showers and
thunderstorms are expected through the weekend. The main storm
threats will continue to be frequent lightning strikes, gusty
winds and torrential downpours producing urban, river, and poor
drainage flooding.

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

Kelly/Johnson/Lascody

In the hours before

Special weather statement, Jul 25, 2:21 PM EDT, 1 hour 56 minutes before

Special Weather Statement
National Weather Service Melbourne FL
221 PM EDT WED JUL 25 2018

FLZ047-147-251915-
Southern Brevard County FL-Northern Brevard County FL-
221 PM EDT WED JUL 25 2018

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BREVARD COUNTY UNTIL 315
PM EDT...

At 221 PM EDT, Doppler radar was tracking a strong thunderstorm 7
miles west of Viera, or 9 miles southwest of Rockledge, moving
northeast at 15 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Melbourne, Titusville, Rockledge, Cocoa and Cocoa Beach.

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.

&&

LAT...LON 2844 8051 2839 8056 2834 8057 2819 8055
      2813 8056 2820 8086 2835 8086 2837 8088
      2846 8090 2847 8087 2851 8088 2852 8091
      2866 8094 2868 8060 2860 8054 2848 8050
TIME...MOT...LOC 1821Z 243DEG 13KT 2823 8084

Smith

Special weather statement, Jul 25, 2:45 PM EDT, 1 hour 32 minutes before

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Local storm report, Jul 25, 3:03 PM EDT, 1 hour 14 minutes before

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Local storm report, Jul 25, 3:14 PM EDT, 1 hour 3 minutes before

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Special weather statement, Jul 25, 3:30 PM EDT, 47 minutes before

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Special weather statement, Jul 25, 4:17 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 12:21 PM EDT	Special Weather Statement	MLB	Orange, Seminole, Volusia	84 min
Jul 25, 12:34 PM EDT	Special Marine Warning	MLB		116 min
Jul 25, 12:58 PM EDT	Special Marine Warning	MLB		92 min
Jul 25, 1:52 PM EDT	Special Weather Statement	MLB	Indian River	53 min
Jul 25, 2:16 PM EDT	Special Weather Statement	MLB	Volusia	59 min
Jul 25, 2:21 PM EDT	Special Weather Statement	MLB	Brevard	54 min
Jul 25, 2:30 PM EDT	Special Marine Warning	MLB		2 hr
Jul 25, 2:32 PM EDT	Special Marine Warning	MLB		58 min
Jul 25, 2:45 PM EDT	Special Weather Statement	MLB	Indian River	60 min
Jul 25, 3:30 PM EDT	Special Weather Statement	MLB	Okeechobee	45 min
Jul 25, 3:40 PM EDT	Special Marine Warning	MLB		35 min
Jul 25, 4:56 PM EDT	Special Marine Warning	MLB		64 min
Jul 25, 5:05 PM EDT	Special Weather Statement	MLB	Saint Lucie	40 min

Nearby

Special Weather Statements in Florida, 2018 Every 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.