GULFSTREAM CROSSINGS An Ocean and Weather Briefing Dane and Jenifer Clark.

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Presentation transcript:

GULFSTREAM CROSSINGS An Ocean and Weather Briefing Dane and Jenifer Clark

Warm Eddy Formation, stable instabilities, rower stuck in eddy

Cold Eddy formation, last up to 2 years, runaway barge

OCEAN FEATURE MOVEMENTS OVER TIME

Miami WERA Surface Currents

ALTIMETRY ANOMALY ANALYSIS SHOWING EDDY SEA HEIGHT ABOVE AND BELOW MEAN

DELFT OCEAN CURRENT MODEL From Satellite Altimetry Data

UMASS/Harvard Model

UMASS/Harvard Model Vectors/SST’s

WEATHER DOMINATES OCEAN FOR 1982 NEWPORT RACE! 1982 was a spectacular race that was postponed for 2 days due to weather

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OCEAN FEATURES ANALYSIS FOR PREVIOUS IMAGE

MARION BERMUDA 1997 SUGGESTED ROUTES

Tori Murden’s victory row across Atlantic Ocean, first woman to solo Atlantic East to West, 1999

Hazardous Gulfstream Weather

Tropical Cyclone Formation Regions

Gulfstream Waterspouts

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Square wave pattern the result of wind opposing ocean current

GULFSTREAM HAZARD SCALE GULFSTREAM HAZARD SCALE (SQUARE-WAVE CONDITIONS) CAT RISK* WN/OP/CUR FETCH SIG WV HEIGHT EXWAVES 1 LOW KTS 1 DAY 5-10 FEET > 15 FEET 2 MODERATE KTS 2-3+ DAYS 8-15 FEET > 20 FEET 3 HIGH KTS 1 DAY FEET > 30 FEET KTS 2-3+ DAYS FEET > 40 FEET 4 VERY HIGH KTS 1 DAY FEET > 50 FEET KTS 2-3+ DAYS FEET > 60 FEET 5 EXTREME KTS 1 DAY FEET >70 FEET KTS 2-3+ DAYS FEET >80 FEET RISK - PROBABILITY OF ENCOUNTERING AN EXTREME WAVE WITH A “SQUARE WAVE” OR STEEP-FACE STRUCTURE (A RECOGNIZED HAZARD TO NAVIGATION) WN/OP/CUR – WIND OPPOSING CURRENT (BOTH MAIN GULFSTREAM AND EDDIES) FETCH – DISTANCE AND DURATION OF THE WIND PATTERN SIG WV HEIGHT – SIGNIFICANT WAVE HEIGHT (INTERNATIONAL SCALE) EXWAVES – EXTREME WAVE POTENTIAL AFTER SEVERAL HOURS IN THESE CONDITIONS

Norwegian Dawn Apr 05– MIA to NY

GULFSTREAM HAZARD SCALE GULFSTREAM HAZARD SCALE (SQUARE-WAVE CONDITIONS) CAT RISK* WN/OP/CUR FETCH SIG WV HEIGHT EXWAVES 1 LOW KTS 1 DAY 5-10 FEET > 15 FEET 2 MODERATE KTS 2-3+ DAYS 8-15 FEET > 20 FEET 3 HIGH KTS 1 DAY FEET > 30 FEET KTS 2-3+ DAYS FEET > 40 FEET 4 VERY HIGH KTS 1 DAY FEET > 50 FEET KTS 2-3+ DAYS FEET > 60 FEET 5 EXTREME KTS 1 DAY FEET >70 FEET KTS 2-3+ DAYS FEET >80 FEET RISK - PROBABILITY OF ENCOUNTERING AN EXTREME WAVE WITH A “SQUARE WAVE” OR STEEP-FACE STRUCTURE (A RECOGNIZED HAZARD TO NAVIGATION) WN/OP/CUR – WIND OPPOSING CURRENT (BOTH MAIN GULFSTREAM AND EDDIES) FETCH – DISTANCE AND DURATION OF THE WIND PATTERN SIG WV HEIGHT – SIGNIFICANT WAVE HEIGHT (INTERNATIONAL SCALE) EXWAVES – EXTREME WAVE POTENTIAL AFTER SEVERAL HOURS IN THESE CONDITIONS

April 07- Storm – SubTrop Andrea 4 boats lost, 9 rescued, 4 died, 21 containers overboard

April 2007

Extreme Wave

Wrong Place – Wrong Time!!