Expert forecasts for 2020 North Atlantic Hurricane Season

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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#261 Postby al78 » Tue Jul 07, 2020 11:39 am

TSR July forecast now published.

http://tropicalstormrisk.com/docs/TSRAT ... ly2020.pdf

The same as the pre-season forecast, about 30% above-norm.
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#262 Postby ouragans » Tue Jul 07, 2020 2:20 pm

al78 wrote:TSR July forecast now published.

http://tropicalstormrisk.com/docs/TSRAT ... ly2020.pdf

The same as the pre-season forecast, about 30% above-norm.


They went 1 TS and 1 IH up
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#263 Postby Shell Mound » Wed Jul 08, 2020 10:01 am

Steve wrote:
Shell Mound wrote:Who’s willing to bet that, regardless of overall numbers, we’ll match or exceed the record seasonal ACE value of 259 set back in 1933? Two or three Irma-type systems may well be sufficient. Long-tracking CV majors quickly add up to a lot of storm-generated ACE over time, especially if the cyclone(s) maintains and/or attains MH status on several days. You don’t need 2005-type numbers in terms of overall NS to achieve record-breaking ACE. You just need a high proportion of long-tracking major hurricanes to do the trick, so to speak.


How much are you willing to go on it? I'll probably take the bet as a site donation or something. 259 ain't likely.

My “bet” was not literal. I shouldn’t even have used the term “bet.” Personally, I wouldn’t necessarily go by seasonal analogs or forecasted ranges. ACE of 259 may be climatologically unlikely, but such records are made to be met or exceeded. One doesn’t need 2005-type total NS to match or exceed 1933’s ACE. One merely needs a smattering of Irma- or Isabel-type systems during an above-average year. Everything suggests that we are likely to see two or more such systems during ASO. As I have said all along, this season will either bust on the low fringe or exceed the most bullish forecasts. Given current trends, I’m siding with the latter prospect, at least in terms of hurricanes/majors and ACE. (I think we’ll near 2005’s total NS but not exceed it.)
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#264 Postby CyclonicFury » Wed Jul 08, 2020 10:04 am

Shell Mound wrote:
Steve wrote:
Shell Mound wrote:Who’s willing to bet that, regardless of overall numbers, we’ll match or exceed the record seasonal ACE value of 259 set back in 1933? Two or three Irma-type systems may well be sufficient. Long-tracking CV majors quickly add up to a lot of storm-generated ACE over time, especially if the cyclone(s) maintains and/or attains MH status on several days. You don’t need 2005-type numbers in terms of overall NS to achieve record-breaking ACE. You just need a high proportion of long-tracking major hurricanes to do the trick, so to speak.


How much are you willing to go on it? I'll probably take the bet as a site donation or something. 259 ain't likely.

My “bet” was not literal. I shouldn’t even have used the term “bet.” Personally, I wouldn’t necessarily go by seasonal analogs or forecasted ranges. ACE of 259 may be climatologically unlikely, but such records are made to be met or exceeded. One doesn’t need 2005-type total NS to match or exceed 1933’s ACE. One merely needs a smattering of Irma- or Isabel-type systems during an above-average year. Everything suggests that we are likely to see two or more such systems during ASO. As I have said all along, this season will either bust on the low fringe or exceed the most bullish forecasts. Given current trends, I’m siding with the latter prospect, at least in terms of hurricanes/majors and ACE. (I think we’ll near 2005’s total NS but not exceed it.)

It's not as simple of underperforming or overperforming forecasts. We could easily have a season very similar to the expert forecasts.
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#265 Postby Shell Mound » Wed Jul 08, 2020 11:39 am

CyclonicFury wrote:
Shell Mound wrote:
Steve wrote:
How much are you willing to go on it? I'll probably take the bet as a site donation or something. 259 ain't likely.

My “bet” was not literal. I shouldn’t even have used the term “bet.” Personally, I wouldn’t necessarily go by seasonal analogs or forecasted ranges. ACE of 259 may be climatologically unlikely, but such records are made to be met or exceeded. One doesn’t need 2005-type total NS to match or exceed 1933’s ACE. One merely needs a smattering of Irma- or Isabel-type systems during an above-average year. Everything suggests that we are likely to see two or more such systems during ASO. As I have said all along, this season will either bust on the low fringe or exceed the most bullish forecasts. Given current trends, I’m siding with the latter prospect, at least in terms of hurricanes/majors and ACE. (I think we’ll near 2005’s total NS but not exceed it.)

It's not as simple of underperforming or overperforming forecasts. We could easily have a season very similar to the expert forecasts.

What limiting factors do you see, besides climatology, that may limit the production of ACE in 2020 and preclude a 1933-type result in this regard?
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#266 Postby Beef Stew » Mon Jul 27, 2020 1:23 pm

The final update from CSU is coming on August 5th, at 11am EDT.

 https://twitter.com/philklotzbach/status/1287802453526630401


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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#267 Postby AnnularCane » Thu Jul 30, 2020 5:08 pm

With 9 storms before August (and mayyyybe 10?), I can't even begin to imagine what the prediction will be for the August update.
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#268 Postby CyclonicFury » Thu Jul 30, 2020 5:11 pm

I don't really consider AccuWeather an expert forecast, but they raised their numbers even further. 20-24 named storms, 9-11 hurricanes, and 4-6 major hurricanes.

https://www.accuweather.com/en/hurrican ... oms/785249
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#269 Postby CrazyC83 » Fri Jul 31, 2020 11:51 pm

AnnularCane wrote:With 9 storms before August (and mayyyybe 10?), I can't even begin to imagine what the prediction will be for the August update.


If I were to guess: 19 to 24 named storms, 8 to 12 hurricanes, 4 to 6 major hurricanes.
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#270 Postby Beef Stew » Mon Aug 03, 2020 12:18 pm

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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#271 Postby SFLcane » Mon Aug 03, 2020 12:42 pm



I expect NOAA’s numbers to go even higher on Thursday.
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#272 Postby St0rmTh0r » Mon Aug 03, 2020 1:38 pm


At the current pace we would see over 30 named storms before October
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#273 Postby SFLcane » Mon Aug 03, 2020 1:54 pm

CrazyC83 wrote:
AnnularCane wrote:With 9 storms before August (and mayyyybe 10?), I can't even begin to imagine what the prediction will be for the August update.


If I were to guess: 19 to 24 named storms, 8 to 12 hurricanes, 4 to 6 major hurricanes.


My current thinking also.
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#274 Postby chaser1 » Mon Aug 03, 2020 6:00 pm

St0rmTh0r wrote:

At the current pace we would see over 30 named storms before October


A few years back I was lucky enough to take an early Spring trip to Iceland. From a weather & geological perspective it was just "insanely cool"! Among the many fun facts that I learned during the trip was that the Icelandic alphabet consists of 32 characters. So, there ya go?! Perhaps a short term solution to our needing more letters for each hurricane season. Sure, some of the names may be rather unfamiliar but look how well we did with Isaias :lol:
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season: Next forecasts: CSU / TSR on 5th / NOAA on 6th

#275 Postby toad strangler » Wed Aug 05, 2020 9:25 am

Anyone know what time CSU update comes out today?
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Re: RE: Re: Expert forecasts for 2020 North Atlantic Hurricane Season: Next forecasts: CSU / TSR on 5th / NOAA on 6th

#276 Postby shiny-pebble » Wed Aug 05, 2020 9:27 am

toad strangler wrote:Anyone know what time CSU update comes out today?
11 AM EDT

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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#277 Postby mcheer23 » Wed Aug 05, 2020 9:56 am

Updated forecast from Colorado State University for the rest of the 2020 Hurricane Season now calls for a total of 24 storms, 12 hurricanes, & 5 major hurricanes. Double the amount of a normal year & may rival 2005 (28).
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season

#278 Postby SFLcane » Wed Aug 05, 2020 9:58 am

mcheer23 wrote:Updated forecast from Colorado State University for the rest of the 2020 Hurricane Season now calls for a total of 24 storms, 12 hurricanes, & 5 major hurricanes. Double the amount of a normal year & may rival 2005 (28).


Just wow! :eek:
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season: CSU= 24/12/5

#279 Postby cycloneye » Wed Aug 05, 2020 10:00 am

Details shortly on the first page CSU list.
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Re: Expert forecasts for 2020 North Atlantic Hurricane Season: CSU= 24/12/5

#280 Postby cycloneye » Wed Aug 05, 2020 10:02 am

Image
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