Alert archive / Florida / Special Marine Warnings in 2016
Special Marine Warning 310, NWS Miami, FL
NWS Miami, FL issued this special marine warning at Aug 14, 2016, 3:45 PM EDT. 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
- Aug 14, 2016, 3:45 PM EDT (19:45 UTC)
- Expired
- Aug 14, 2016, 4:30 PM EDT
- In force
- 45 min
- Issued by
- NWS Miami, FL
- Area
- Storm-based polygon
- Hail
- 0.0 in
- Wind
- 34.0 mph
The radar
The Miami radar (KAMX), 173 km from the middle of the area, began a volume at 19:46 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 12:00Z, 7.8 hours before the alert went out and 173 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
- 534 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1417 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- -67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
761
WHUS52 KMFL 141945
SMWMFL
GMZ656-142030-
/O.NEW.KMFL.MA.W.0310.160814T1945Z-160814T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MIAMI FL
345 PM EDT SUN AUG 14 2016
THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
COASTAL WATERS FROM CHOKOLOSKEE TO BONITA BEACH FL OUT 20 NM...
* UNTIL 430 PM EDT
* AT 345 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING
WATERSPOUTS WAS LOCATED NEAR NAPLES...MOVING WEST AT 25 KNOTS.
HAZARD...WATERSPOUTS AND WIND GUSTS 34 KNOTS OR GREATER.
SOURCE...RADAR INDICATED.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY
HIGHER WINDS AND SUDDENLY HIGHER WAVES.
* LOCATIONS IMPACTED INCLUDE...
VANDERBILT BEACH...NAPLES AND BONITA SHORES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR
IMMEDIATELY.
&&
LAT...LON 2621 8220 2633 8186 2633 8182 2632 8182
2631 8179 2620 8175 2603 8182 2609 8214
2610 8215 2610 8219 2612 8222 2613 8223
TIME...MOT...LOC 1945Z 109DEG 26KT 2614 8187
WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...>34KTS
$$
RAG1 follow-up statement
771
FZUS72 KMFL 142021
MWSMFL
MARINE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
421 PM EDT SUN AUG 14 2016
GMZ656-142030-
/O.EXP.KMFL.MA.W.0310.000000T0000Z-160814T2030Z/
421 PM EDT SUN AUG 14 2016
...THE SPECIAL MARINE WARNING WILL EXPIRE AT 430 PM EDT...
THE AFFECTED AREAS WERE...
COASTAL WATERS FROM CHOKOLOSKEE TO BONITA BEACH FL OUT 20 NM...
THE THUNDERSTORM HAS WEAKENED AND NO LONGER POSES A SIGNIFICANT
THREAT TO BOATERS. BOATERS SHOULD STILL EXPECT GUSTY WINDS AND
LIGHTNING ALONG THE COLLIER COUNTY COAST OVER THE NEXT HOUR OR SO.
LAT...LON 2621 8220 2633 8186 2633 8182 2632 8182
2631 8179 2620 8175 2603 8182 2609 8214
2610 8215 2610 8219 2612 8222 2613 8223
TIME...MOT...LOC 2019Z 109DEG 26KT 2614 8187
$$
RAGThe office that day
Everything else NWS Miami, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 8:00 PM EDT | Special Weather Statement | MFL | Miami-Dade | 45 min |
| Aug 13, 8:13 PM EDT | Special Weather Statement | MFL | Miami-Dade | 77 min |
| Aug 13, 9:19 PM EDT | Special Weather Statement | MFL | Miami-Dade | 41 min |
| Aug 13, 11:32 PM EDT | Special Marine Warning | MFL | 58 min | |
| Aug 14, 3:46 AM EDT | Rip Current Statement | MFL | Broward, Miami-Dade | 20 hr |
| Aug 14, 5:52 AM EDT | Special Marine Warning | MFL | 38 min | |
| Aug 14, 6:31 AM EDT | Special Marine Warning | MFL | 44 min |
Nearby
Special Marine Warnings in Florida, 2016Every special marine warning in 2016
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.