Alert archive / Florida / Special Marine Warnings in 2015
Special Marine Warning 310, NWS Miami, FL
NWS Miami, FL issued this special marine warning at Nov 15, 2015, 5:05 AM EST. It was in force for 40 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
- Nov 15, 2015, 5:05 AM EST (10:05 UTC)
- Expired
- Nov 15, 2015, 5:45 AM EST
- In force
- 40 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
The radar
The Miami radar (KAMX), 28 km from the middle of the area, began a volume at 10:06 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
Miami, FL (KMFL), launched 00:00Z, 10.1 hours before the alert went out and 14 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.
- Mixed-layer CAPE
- 769 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 584 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
598
WHUS52 KMFL 151005
SMWMFL
AMZ630-651-151045-
/O.NEW.KMFL.MA.W.0310.151115T1005Z-151115T1045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MIAMI FL
505 AM EST SUN NOV 15 2015
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
BISCAYNE BAY...
COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF FL OUT 20 NM...
* UNTIL 545 AM EST
* AT 505 AM EST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM...
CAPABLE OF PRODUCING WINDS 34 KNOTS OR GREATER...LOCATED OVER MIAMI
BEACH...MOVING WEST AT 20 KNOTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AS THIS THUNDERSTORM MOVES OVER THE WATER...BOATERS CAN EXPECT GUSTY
WINDS AND HIGH WAVES. MOVE TO SAFE HARBOR OR STAY CLOSE TO SHORE
UNTIL THE STORM PASSES.
&&
LAT...LON 2559 8009 2559 8031 2564 8029 2563 8028
2564 8027 2569 8027 2570 8024 2570 8026
2576 8019 2584 8018 2588 8016 2586 8013
2586 8014 2584 8013 2580 8014 2577 8013
2588 8012 2587 7989
TIME...MOT...LOC 1005Z 090DEG 18KT 2579 8012
$$
KM2 follow-up statements
935
FZUS72 KMFL 151018
MWSMFL
MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
518 AM EST SUN NOV 15 2015
AMZ630-651-151045-
/O.CON.KMFL.MA.W.0310.000000T0000Z-151115T1045Z/
518 AM EST SUN NOV 15 2015
...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 545 AM EST...
FOR THE FOLLOWING AREAS...
BISCAYNE BAY...
COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF FL OUT 20 NM...
AT 518 AM EST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM...
CAPABLE OF PRODUCING WINDS 34 KNOTS OR GREATER...LOCATED OVER MIAMI
BEACH...MOVING WEST AT 15 KNOTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR
IMMEDIATELY.
&&
LAT...LON 2559 8009 2559 8031 2564 8029 2563 8028
2564 8027 2569 8027 2570 8024 2570 8026
2576 8019 2584 8018 2588 8016 2586 8013
2586 8014 2584 8013 2580 8014 2577 8013
2588 8012 2587 7989
TIME...MOT...LOC 1018Z 090DEG 14KT 2580 8013
$$
KM306
FZUS72 KMFL 151039
MWSMFL
MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
539 AM EST SUN NOV 15 2015
AMZ630-651-151047-
/O.EXP.KMFL.MA.W.0310.000000T0000Z-151115T1045Z/
539 AM EST SUN NOV 15 2015
...THE SPECIAL MARINE WARNING WILL EXPIRE AT 545 AM EST...
THE AFFECTED AREAS WERE...
BISCAYNE BAY...
COASTAL WATERS FROM DEERFIELD BEACH TO OCEAN REEF FL OUT 20 NM...
THE THUNDERSTORM HAS MOVED OUT OF THE AREA AND NO LONGER POSES A
SIGNIFICANT THREAT TO BOATERS. HOWEVER WINDS MAY STILL GUST TO 30
KTS THIS MORNING WITH ANY ADDITIONAL SHOWERS OR THUNDERSTORMS.
LAT...LON 2559 8009 2559 8031 2564 8029 2563 8028
2564 8027 2569 8027 2570 8024 2570 8026
2576 8019 2584 8018 2588 8016 2586 8013
2586 8014 2584 8013 2580 8014 2577 8013
2588 8012 2587 7989
TIME...MOT...LOC 1034Z 090DEG 18KT 2580 8013
$$
KMThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 14, 9:14 PM EST | Special Marine Warning | MFL | 46 min | |
| Nov 15, 2:57 AM EST | Special Marine Warning | MFL | 93 min |
Nearby
Special Marine Warnings in Florida, 2015Every special marine warning in 2015
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.