Alert archive / Florida / Lake Wind Advisories in 2007

Lake Wind Advisory 7, NWS Melbourne, FL

May 19, 20076 counties in Florida

NWS Melbourne, FL issued this lake wind advisory at May 19, 2007, 4:59 AM EDT for 6 counties in Florida. It took effect at May 19, 2007, 10:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: May 19, 2007, 4:59 AM EDT (08:59 UTC)
In effect from: May 19, 2007, 10:00 AM EDT
Expired: May 19, 2007, 6:00 PM EDT
In force: 8 hr
Issued by: NWS Melbourne, FL

Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 09:02 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, 9.0 hours before the alert went out and 139 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1839 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this lake wind advisory 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 lake wind advisory went out at May 19, 4:45 AM EDT, 14 minutes earlier.

Area forecast discussion, May 19, 4:45 AM EDT, 14 minutes before

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Hazardous weather outlook, May 18, 6:06 AM EDT, 22 hours 53 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MELBOURNE FL
606 AM EDT FRI MAY 18 2007

AMZ550-555-570-575-FLZ041-044>047-053-054-058-059-064-141-144-147-
182215-
COASTAL WATERS FROM FLAGLER BEACH TO COCOA BEACH OUT 20 NM-
COASTAL WATERS FROM COCOA BEACH TO JUPITER INLET OUT 20 NM-
WATERS FROM FLAGLER BEACH TO COCOA BEACH 20 TO 60 NM OFFSHORE-
WATERS FROM COCOA BEACH TO JUPITER INLET 20 TO 60 NM OFFSHORE-
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-MARTIN-COASTAL VOLUSIA-
SOUTHERN LAKE-NORTHERN BREVARD-
606 AM EDT FRI MAY 18 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

...THUNDERSTORM IMPACT...
A WEAKENING COLD FRONT WILL PUSH ACROSS THE CENTRAL FLORIDA
PENINSULA TODAY. THIS FRONT MAY GENERATE ISOLATED THUNDERSTORMS AS
IT MOVES THROUGH THE AREA. THE PRIMARY THREAT FROM THESE STORMS
WILL BE CLOUD-TO-GROUND LIGHTNING...THOUGH A FEW OF THEM COULD
GENERATE STRONG GUSTY WINDS AND SMALL HAIL.

REMEMBER...LIGHTNING IS THE MOST UNDER-RATED THUNDERSTORM
THREAT...RESPONSIBLE FOR MORE ANNUAL CASUALTIES THAN TORNADOES AND
HURRICANES COMBINED. MOVE INDOORS IMMEDIATELY IF LIGHTNING IS SEEN
OR IF THUNDER IS HEARD.

...RIP CURRENT IMPACT...
LINGERING OCEAN SWELLS WILL CONTINUE TO PRODUCE A THREAT OF RIP
CURRENTS AT THE BEACHES OF EAST CENTRAL FLORIDA TODAY. NUMEROUS
RESCUES WERE REPORTED YESTERDAY.

A RIP CURRENT IS A NARROW CHANNEL OF WATER FLOWING OUTWARD FROM
THE SURF ZONE WHICH CAN CARRY EVEN STRONG SWIMMERS INTO DEEPER
WATER BEYOND THE SAND BAR. IF CAUGHT IN A RIP CURRENT...SWIM
PARALLEL TO SHORE UNTIL OUT OF THE PULL OF THE CURRENT...THEN
RETURN TO SHORE. DO NOT TRY TO SWIM BACK TO SHORE DIRECTLY AGAINST
THE CURRENT. EXHAUSTION AND PANIC CAN SET IN AND CAUSE DROWNING.

...MARINE THUNDERSTORM GUST IMPACT...
ISOLATED THUNDERSTORMS ARE EXPECTED TO ACCOMPANY THE COLD FRONT AS
IT PUSHES ACROSS THE ATLANTIC WATERS OF EAST CENTRAL FLORIDA.
WHILE THE STORMS ARE NOT EXPECTED TO BE WIDESPREAD...A FEW OF THEM
MAY BE CAPABLE OF PRODUCING WINDS GUSTS NEAR 35 KNOTS.

...WIND AND SEA IMPACT...
TRANQUIL BOATING CONDITIONS THIS MORNING WILL BEGIN TO DETERIORATE
THIS AFTERNOON AS WINDS INCREASE OUT OF THE NORTH BEHIND THE COLD
FRONT. THE WINDS MAY APPROACH 20 KNOTS NORTH OF CAPE CANAVERAL AND
INCREASE TO 15 TO 20 KNOTS ELSEWHERE.  THESE WINDS WILL CAUSE SEAS
TO INCREASE TO 4 TO 6 FEET BY EARLY EVENING OVER MUCH OF THE
COASTAL WATERS BETWEEN FLAGLER BEACH AND JUPITER INLET...ESPECIALLY
OVER THE OFFSHORE LEG. SMALL BOATERS SHOULD REMAIN VIGILANT TO THE
CHANGING CONDITIONS THAT ARE EXPECTED TODAY.

...FIRE WEATHER IMPACT...
DRY AIR WILL FILTER INTO THE CENTRAL PENINSULA IN THE WAKE OF THE
APPROACHING COLD FRONT. COMBINED WITH DRY VEGETATION OVER MUCH OF
THE AREA...A FIRE DANGER WILL REMAIN PRESENT ACROSS MUCH OF EAST
CENTRAL FLORIDA.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
A FRESHENING NORTHEAST FLOW THIS WEEKEND WILL KEEP SEAS OVER THE
OPEN ATLANTIC NEAR 6 FEET FOR MUCH OF THE UPCOMING WEEKEND.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS ARE REQUESTED TO MONITOR THE WEATHER AND SELF ACTIVATE
IF NEEDED.

BRAGAW

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 11:35 AM EDT	Red Flag Warning	MLB	Lake, Orange, Osceola, Seminole, Volusia	6 hr
May 19, 2:31 PM EDT	Fire Weather Watch	MLB	Lake, Orange, Osceola, Seminole, Volusia	15 hr

Nearby

Lake Wind Advisories in Florida, 2007 Every lake wind advisory in 2007

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.