The list of cyclone landfalls in the USA, 1851-2018 can be found at the
AOML_HRD Site (NOAA, Hurricane Research Division).
From such a list I've extracted both usa.txt and usa3.txt (the
first one concerns all the events, while the other concerns categories
3,4,5).
Another list exists, from
Blake e Gibney,2011
where data are different, in spite of the same derivation; in practice the
last list uses a different classification of the cyclones.
I don't know what the correct list may be, so I'll plot both lists but pls note that the AOML_HRD is updated on July 31, 2018, while Blake & Gibney paper is a 2011 NOAA Technical Memorandum (NWS NHC-6).
A reader of my post on ClimateMonitor informed us that Roy Spencer previously published the
cyclone rainfalls within the whole (17) decades
here. He also justify the choice to plot 9th through
17th decade (here presented along with the complete plot) as a comparison,
in such a way:
This may be a correct explanation for the cherry-picking used here in conjunction with the complete plot. Nevertheless, it cannot explain the lack of information associated to the last-published plot. It appears as an uncorrect and misleading choice of particular decades, in order to confirm his own ideas. Two rows of a newly repeated explanation would have been appreciated, while the actual choice appears to be a serious fault in Spencer credibility (and I'm very,very sorry to write that, really!). Also, the use of the 17th decade whose numer of cyclones is totally
unknown, is justified by:
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Someone correctly assumes that the use of USA landfall cyclones means a strong
limit to the number of events. I agree with them and have used the data of
all the cyclones, 1967 through 2017, selected in categories, available in
Wikipedia and, given the starting date, relative to the
satellite era.
The plot of the ≥3 events follows. It can be noted the real positive
slope which could bring to the idea of a growing number of extreme events in the last 50 years, but we note a break point near the years 1994-96 in the graph. So, two linear fits: before and after 1995, highlight two very different regimes of the series: before 1995 the cyclones number was constant on average; after 1995 the climate shift (in many European climatic series a climate shift in 1987 is also visible) the (relatively) large number of events tends to fall at a (0.05±0.06) events/yr rate. So, the growing slope derived from the overall fit cannot be considered as a real one, given the two different behaviour of the data.