North Atlantic Hurricane Season - June to November 2013

A summary/analysis post will follow this one. Please read the earlier posts  here:

2014 Atlantic Hurricane Season - June to November

2015 Atlantic Hurricane Season - June to November

2016 Atlantic Hurricane Season - June to November

2017 Atlantic Hurricane Season - June to November

References:

1. https://en.wikipedia.org/wiki/Timeline_of_the_2013_Atlantic_hurricane_season
2. Sidorenkov, N.S., 2009: The Interaction Between Earth’s Rotation and Geophysical Processes, Weinheim: Wiley.
3. NOAA National Hurricane Center Tropical Cyclone Reports -  2013 Hurricane Season
https://www.nhc.noaa.gov/data/tcr/index.php?season=2013&basin=atl


CLAIM

Tropical depressions or storms that appear in the Atlantic Ocean between the Equator and 25.0 degrees North during the North Atlantic Hurricane season, will do so on dates that are maxima or minima in the lunar-induced changes in the relative angular velocity of the Earth's rotation. [N.B. the dates that are maxima or minima in the lunar-induced changes in the relative angular velocity occur close to the times when the Moon crosses the Earth's equator or reaches lunar standstill (i.e. the Moon is furthest north or south of the Equator).]   

Of the 15 events in the 2013 North Atlantic Hurricane Season, 

a) 13 Tropical Depressions/Tropical Storms/Hurricanes support the claim above. 

i) 0 to 25 degrees_________Barry, Chantal, Dorian, Erin, TD7 ?, TD8, Humberto, Igred, Jerry, Karen

ii) Extratropical (> 25 degrees)____Andrea, Lorenzo, Melissa

b) 2 Tropical Depressions/Tropical Storms/Hurricanes definitely DO NOT support the above claim. 

i) 0 to 25 degrees_________Ferdinand

ii) Extratropical (> 25 degrees)____Garielle


KEY FOR FIGURES

KW = Kelvin Wave

L = Low Pressure
TD = Tropical Depression
STS = Sub-Tropical Storm

TS = Tropical Storm
CATN = Category N Hurricane  where N = 1, 2, 3, 4, or 5.
PK = Peak Activity 

JUNE

JULY

AUGUST

SEPTEMBER

OCTOBER

NOVEMBER