Archives par mot-clé : Hurricane

The 2023 Atlantic Hurricane Season Was Average–Not 4th Busiest

by P. Homewood, Dec 1, 2023 in NotaLotofPeopleKnowThat

As even CBS own chart shows, the number of hurricanes and major hurricanes has only been average.

Instead it is those named storms, which did not reach hurricane strength, that have been above average. And as we know, this is simply because we are able to spot many more of these short lived, weak storms with the help of satellites, along with the fact that many storms are now named which would not have been categorised as Tropical Storms in the past.

First, let’s look at the actual data.

The best record we have is for US landfalling hurricanes, with reliable data back as far as the 1900. According to the US Hurricane Research Division (HRD):

Because of the sparseness of towns and cities before 1900 in some coastal locations along the United States, the above list is not complete for all states. Before the Gulf of Mexico and Atlantic coasts became settled, hurricanes may have been underestimated in their intensity or missed completely for small-sized systems (i.e., 2004’s Hurricane Charley).

The 2022 Hurricane Season

by P. Homewood (pdf), Feb 2023 in GWPF


About the author iii Executive summary v

  1. Introduction 1
  2. Observational methodologies 1
  3. US landfalling hurricanes 3
  4. Atlantic hurricanes 5
  5. Global trends 7
  6. What do the IPCC say? 8

About the Global Warming Policy Foundation 10

Executive summary

It is widely believed that hurricanes are getting worse as a consequence of climate change. This belief is fuelled by the media and some politicians, particularly when a bad storm occurs. This be- lief is reinforced because the damage caused by hurricanes is much greater nowadays, thanks to increasing populations in vulnerable coastal areas and greater wealth more generally.

But is this belief correct, or is it a misconception? This study has carefully analysed official data and assessments by hurricane scientists, and finds:

• 2021 and 2022 recorded the lowest number of both hurricanes and major hurricanes glob- ally for any two year period since 1980.

• The apparent long-term increase in the number of hurricanes since the 19th century has been due to changes in observational practices over the years, rather than a real increase.

• Data show no long-term trends in US landfalling hurricanes since the mid-19th century, when systematic records began, either in terms of frequency or intensity.

• Similarly, after allowing for the fact that many hurricanes were not spotted prior to the sat- ellite era, there are no such trends in Atlantic hurricanes either.

  • Globally there are also no trends in hurricanes since reliable records began in the 1970s.
  • Evidence is also presented that wind speeds of the most powerful hurricanes may now be overestimated in comparison to pre-satellite era ones, because of changing methods of meas- urement.

• The increase in Atlantic hurricanes in the last fifty years is not part of a long-term trend, but is simply a recovery from a deep minimum in hurricane activity in the 1970s, associated with the Atlantic Multidecadal Oscillation.

These findings are in line with those of hurricane scientists generally, as well as official bodies such as NOAA and the IPCC.

After Hurricane Ian: No Trend in Florida Landfalls, Global Activity Trending Down

by Dr R. Spencer, Sep 29, 2022 in WUWT

With Hurricane Ian (now a tropical storm) exiting the east coast of Florida, there is no shortage of news reports tying this storm to climate change. Even if those claims actually include data to support their case, those data are usually for cherry-picked regions and time periods. If global warming is causing a change in tropical cyclone activity, it should show up in global statistics.

The latest peer-reviewed study (March 2022, here) of the accumulated wind energy in tropical cyclones since 1990 (when we started have sufficient global data) showed a decrease in hurricane activity. There was an increase in Atlantic activity, but this was matched by an even larger decrease in Pacific activity, due to a shift from El Nino to La Nina conditions during that time.

So, yes, there is climate change involved in the uptick in Atlantic activity in recent decades. But it’s natural.

Looking at just the numbers of global hurricanes since 1980, we see no obvious trends.

‘Hurricane Season Slowest Start In 30 Years’: Media Spin Begins

by A. Watts, Aug 29, 2022 in ClimateChangeDispatch

Back in May, many media outlets ran with this headline courtesy of a press release from NOAA:

NOAA predicts above-normal 2022 Atlantic Hurricane Season

Media outlets like Houston Public Media trumpeted it as if it was fact, saying: [bold, links added]

The National Oceanic and Atmospheric Administration (NOAA) released its 2022 Atlantic Hurricane Forecast, predicting an “above normal” hurricane season.

NOAA says there is a 70% chance of 14-21 storms forming, with as many as ten potentially becoming hurricanes. Three to six of these storms could become major hurricanes.