Alert archive / Florida / Special Marine Warnings in 2012

Special Marine Warning 101, NWS Miami, FL

May 18, 2012

NWS Miami, FL issued this special marine warning at May 18, 2012, 6:17 PM EDT. 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 counties it named.

The facts

Issued: May 18, 2012, 6:17 PM EDT (22:17 UTC)
Expired: May 18, 2012, 7:15 PM EDT
In force: 58 min
Issued by: NWS Miami, FL
Area: Storm-based polygon

What forecasters said that day

The local office's own words before this special marine warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Miami, FL wrote its last area forecast discussion before this special marine warning went out at May 18, 2:44 PM EDT, 3 hours 33 minutes earlier.

Area forecast discussion, May 18, 2:44 PM EDT, 3 hours 33 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIAMI FL
244 PM EDT FRI MAY 18 2012

.SHORT TERM...TONIGHT THROUGH TUESDAY...A BROAD MID TO UPPER LEVEL
TROUGH WILL CONTINUE ACROSS THE ERN HALF OF THE COUNTRY. A SERIES
OF WEAK PERTURBATIONS WILL CONTINUE TO MOVE AROUND THE BASE OF
THIS TROUGH AND ACROSS THE PENINSULA. THIS WILL RESULT IN UNSTABLE
CONDITIONS PERSISTING THROUGH THIS PERIOD. DIURNAL HEATING COUPLED
WITH DEVELOPING SEA/LAKE BREEZES WILL LIKELY RESULT IN SCATTERED
AFTERNOON STORMS EACH DAY. A NORTHWEST TO WEST STEERING FLOW WILL
ALSO RESULT IN THE STORMS DEVELOPING MOSTLY ACROSS INLAND AREAS
AND MOVING TOWARD THE EAST COAST METRO AREAS.

.LONG TERM...WEDNESDAY THROUGH FRIDAY...THE MID/UPPER LEVEL TROUGH
SHOULD BEGIN TO FILL UP AND BE REPLACED BY A BUILDING DEEP LAYER
RIDGE. HOWEVER...LONG RANGE GUIDANCE...ESPECIALLY GFS SHOWS A
DISTURBANCE IN THE LOW LEVEL EASTERLIES OVER THE WESTERN CARIBBEAN
WITH THE NORTHERN EDGE MOVING ACROSS S. FLORIDA THURSDAY THROUGH SATURDAY.
AT THIS TIME WL KEEP SCT SHWRS/TSTMS IN THE FORECAST.

&&

.MARINE...LIGHT AND VARIABLE WINDS TONIGHT WILL BECOME MOSTLY EAST
AND REMAIN LIGHT THROUGH THE MIDDLE OF NEXT WEEK. A SMALL NE SWELL
SHOULD BEGIN TO AFFECT THE ATLANTIC WATERS FROM SUNDAY ON.

&&

.FIRE WEATHER...NO PROBLEMS EXPECTED.

&&

.PRELIMINARY POINT TEMPS/POPS...
WEST PALM BEACH  72  84  73  83 / 10 30 30 30
FORT LAUDERDALE  73  84  73  83 / 20 40 30 30
MIAMI            73  84  73  83 / 20 50 30 30
NAPLES           72  86  71  86 / 10 30 30 30

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
AM...NONE.
GM...NONE.
&&

DISCUSSION/MARINE/FIRE...47/RGH
AVIATION/RADAR...57/DG

Hazardous weather outlook, May 18, 10:21 AM EDT, 7 hours 56 minutes before

HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA...UPDATED
NATIONAL WEATHER SERVICE MIAMI FL
1021 AM EDT FRI MAY 18 2012

AMZ610-630-FLZ063-066>075-168-172>174-190530-
LAKE OKEECHOBEE-BISCAYNE BAY-GLADES-HENDRY-INLAND PALM BEACH-
METRO PALM BEACH-COASTAL COLLIER-INLAND COLLIER-INLAND BROWARD-
METRO BROWARD-INLAND MIAMI DADE-METRO MIAMI DADE-MAINLAND MONROE-
COASTAL PALM BEACH-COASTAL BROWARD-COASTAL MIAMI DADE-
FAR SOUTH MIAMI DADE-
1021 AM EDT FRI MAY 18 2012

...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON/EVENING INTERIOR/EAST COAST...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS: SCATTERED THUNDERSTORMS ARE FORECAST TO DEVELOP
ACROSS SOUTH FLORIDA THIS AFTERNOON INTO EARLY THIS
EVENING, WITH THE FOCUS BEING ACROSS THE INTERIOR AND EAST COAST
METROPOLITAN AREAS. GIVEN SUNSHINE, MORE INSTABILITY ASSOCIATED
WITH BETTER SURFACE HEATING AND COLDER AIR ALOFT TODAY, A FEW
SEVERE THUNDERSTORMS WILL BE POSSIBLE CAPABLE OF PRODUCING FREQUENT
LIGHTNING, STRONG WIND GUSTS, LARGE HAIL AND HEAVY RAINS. ALSO, A
BRIEF TORNADO JUST CANNOT BE RULED OUT ALONG THE ATLANTIC COAST.

WIND: WIND GUSTS TO AROUND 60 MPH WILL BE POSSIBLE WITH THE
STRONGEST THUNDERSTORMS OVER THE INTERIOR AND EAST COAST.

HAIL: LARGE HAIL TO AROUND QUARTER SIZE WILL BE POSSIBLE WITH THE
STRONGEST THUNDERSTORMS OVER THE INTERIOR AND EAST COAST.

TORNADOES: A BRIEF TORNADO JUST CANNOT BE RULED OUT ALONG THE ATLANTIC
COAST LATE THIS AFTERNOON INTO EARLY THIS EVENING.

FLOODING: LOCALLY HEAVY RAINFALL WILL BE POSSIBLE WITH THE
THUNDERSTORMS THIS AFTERNOON INTO THIS EVENING, POSSIBLY RESULTING
IN ISOLATED STREET FLOODING AND FLOODING OF POORLY DRAINED
LOCALES.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

ISOLATED TO SCATTERED THUNDERSTORMS ARE IN THE FORECAST DAILY WITH
LIGHTNING AND LOCALIZED HEAVY RAINS BEING THE PRIMARY RISKS AT
THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WIDESPREAD SPOTTER ACTIVATION IS NOT ANTICIPATED, HOWEVER
INDIVIDUAL SPOTTERS ARE ENCOURAGED TO REPORT HIGH WIND, HAIL AND
FLOODING TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MIAMI.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

GREGORIA

In the hours before

Local storm report, May 18, 4:59 PM EDT, 1 hour 18 minutes before

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Special weather statement, May 18, 5:02 PM EDT, 1 hour 15 minutes before

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Local storm report, May 18, 5:18 PM EDT, 59 minutes before

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Special weather statement, May 18, 5:32 PM EDT, 45 minutes before

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Special weather statement, May 18, 5:48 PM EDT, 29 minutes before

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Local storm report, May 18, 6:00 PM EDT, 17 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 8:02 PM EDT	Special Weather Statement	MFL	Palm Beach	28 min
May 17, 8:52 PM EDT	Special Weather Statement	MFL	Palm Beach	38 min
May 17, 9:14 PM EDT	Special Marine Warning	MFL		61 min
May 17, 9:20 PM EDT	Areal Flood Advisory	MFL	Palm Beach	76 min
May 17, 9:30 PM EDT	Special Weather Statement	MFL	Palm Beach	30 min
May 18, 1:16 PM EDT	Special Weather Statement	MFL	Broward	29 min
May 18, 1:26 PM EDT	Special Weather Statement	MFL	Miami-Dade	49 min
May 18, 1:29 PM EDT	Special Marine Warning	MFL		61 min
May 18, 1:45 PM EDT	Special Marine Warning	MFL		60 min
May 18, 1:46 PM EDT	Special Weather Statement	MFL	Palm Beach	29 min
May 18, 1:49 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	26 min
May 18, 1:52 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	38 min
May 18, 2:07 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Palm Beach	23 min
May 18, 2:08 PM EDT	Severe Thunderstorm Warning	MFL	Miami-Dade	37 min
May 18, 2:18 PM EDT	Special Weather Statement	MFL	Palm Beach	12 min
May 18, 2:25 PM EDT	Special Marine Warning	MFL		95 min
May 18, 2:28 PM EDT	Severe Thunderstorm Warning	MFL	Broward, Miami-Dade	26 min
May 18, 2:36 PM EDT	Special Marine Warning	MFL		54 min
May 18, 2:40 PM EDT	Special Weather Statement	MFL	Miami-Dade	35 min
May 18, 2:44 PM EDT	Special Weather Statement	MFL	Broward	46 min
May 18, 2:53 PM EDT	Special Weather Statement	MFL	Broward	37 min
May 18, 3:23 PM EDT	Areal Flood Advisory	MFL	Broward	112 min
May 18, 3:28 PM EDT	Special Weather Statement	MFL	Broward	32 min
May 18, 3:33 PM EDT	Special Marine Warning	MFL		87 min
May 18, 3:39 PM EDT	Special Weather Statement	MFL	Broward	51 min
May 18, 3:43 PM EDT	Special Weather Statement	MFL	Palm Beach	47 min
May 18, 3:58 PM EDT	Severe Thunderstorm Warning	MFL	Broward	18 min
May 18, 4:05 PM EDT	Special Weather Statement	MFL	Hendry	40 min
May 18, 4:14 PM EDT	Special Marine Warning	MFL		91 min
May 18, 4:14 PM EDT	Severe Thunderstorm Warning	MFL	Hendry, Palm Beach	46 min
May 18, 4:18 PM EDT	Special Weather Statement	MFL	Broward	42 min
May 18, 4:39 PM EDT	Special Marine Warning	MFL		81 min
May 18, 5:02 PM EDT	Special Weather Statement	MFL	Miami-Dade	28 min
May 18, 5:09 PM EDT	Special Marine Warning	MFL		81 min
May 18, 5:32 PM EDT	Special Weather Statement	MFL	Hendry	28 min
May 18, 5:58 PM EDT	Special Marine Warning	MFL		62 min
May 18, 6:31 PM EDT	Special Weather Statement	MFL	Miami-Dade	29 min

Nearby

Special Marine Warnings in Florida, 2012 Every special marine warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.