Jump to content
  • Welcome to American Weather

    Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customize your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

Roger Smith

2018 North Atlantic tropical storm / hurricane season forecast contest

Recommended Posts

We are closing in on the contest deadline, there's nothing too imminent so I will allow entries and edits to end of day June 5th then post the table of entries -- let's say 03z June 6th will be when I harvest the entries so if you're going to edit or enter, do it before that time.

Share this post


Link to post
Share on other sites

2018 North Atlantic tropical season contest -- Table of entries

Entries include the 100 count for May and are adjusted when monthly totals appear to add up to seasonal forecasts (in other words, the 100 is added on). Where May is included the total is left as posted. When there is only a seasonal forecast and no monthlies, the contest normal values are used scaled to the forecast (* appears beside forecaster name). These forecasters can supply monthly values before future months begin if they wish, and subject to the following: 

Contest rules state that your monthlies do not have to add up to your seasonal. But if anyone thinks this is an error and wants to adjust, you have until end of June 7th to adjust (PM sent to one entrant on this issue). All forecasters have the option to adjust future months before they begin if they wish (post new numbers).

Note -- have added BlunderStorm's entry which I overlooked (made the table from page one thinking all the entries were there, oops) -- tied seasonals are listed in order received.

 

FORECASTER _____________ SEASONAL __ May __ June __ July _ August _ Sept __ Oct _ Nov-Dec

___ Points available ___________ 50 _______ -- ____ 4 ____ 6 ____ 12 ___ 16  ___ 10 ____ 2 ____ 100

 

SRRTA22 __________________ 22 _9 4 ___ 100 __ 2 1 0 _ 3 2 0 _ 4 2 0 __ 4 3 1 __ 5 3 2 _ 3 2 1 

Roger Smith ________________21 15 7 ___ 100 __ 2 1 0 _ 1 1 0 _ 4 3 2 __ 7 5 3 __ 5 4 2 _ 1 1 0

Jackstraw __________________20 10 4 ___ 100 __ 2 1 0 _ 3 1 1 _ 4 2 1 __ 8 4 2 __ 2 2 0 _ 0 0 0

Orangeburgwx ______________ 19 9 4 ____100 __ 1 1 0 _ 2 0 0 _ 7 5 2 __ 4 2 1 __ 3 1 1 _ 1 0 0 

RJay ______________________ 19 9 3 ____100 __ 2 0 0 _ 3 1 0 _ 4 3 1 __ 5 3 2 __ 3 2 0 _ 1 0 0

jbamafanwx ________________18 10 5 ___ 100 __ 2 1 0 _ 3 2 1 _ 4 2 1 __ 5 4 2 __ 2 1 1 _ 1 0 0

Rtd208 ____________________ 18 8 5 ____100 __ 2 0 0 _ 3 1 0 _ 4 2 2 __ 6 4 2 __ 2 1 1 _ 0 0 0

Stebo _____________________ 18 8 4 ____100 __ 3 1 0 _ 3 1 0 _ 3 2 1 __ 5 3 2 __ 2 1 1 _ 1 0 0

jaxjagman __________________17 9 4 ____100 __ 2 0 0 _ 3 1 0 _ 3 3 2 __ 5 3 2 __ 3 2 0 _ 0 0 0

mryanwilkes ________________ 17 9 4 ____100 __ 3 2 0 _ 3 1 1 _ 4 3 1 __ 5 3 2 __ 1 0 0 _ 0 0 0

BlunderStorm _______________ 17 9 4 ____100 __ 1 0 0 _ 2 1 0 _ 4 2 1 __ 5 4 2 __ 3 2 1 _ 1 0 0

UIWWildthing _______________17 9 3 ____100 __ 2 1 0 _ 3 1 1 _ 3 1 1 __ 6 5 1 __ 2 1 0 _ 0 0 0

NorthArlington101 ___________ 17 8 4 ____100 __ 2 1 0 _ 3 1 0 _ 4 2 1 __ 5 3 2 __ 2 1 1 _ 0 0 0

___ Consensus ______________17 8 3 ____100 __ 2 1 0 _ 2 1 0 _ 4 2 1 __ 5 3 2 __ 2 1 1 _ 1 0 0

hlcater ____________________ 17 7 2 ____100 __ 2 1 0 _ 3 1 1 _ 2 1 0 __ 3 2 0 __ 5 2 1 _ 1 0 0

___ Contest Normal __________16 8 3 ____100 __ 1 0 0 _ 1 0 0 _ 4 2 1 __ 6 4 1 __ 3 2 1 _ 0 0 0

snowlover2 _________________16 5 2 ____100 __ 1 0 0 _ 3 1 0 _ 3 1 1 __ 6 2 1 __ 2 1 0 _ 0 0 0

ncskywarn _________________15 11 4 ___ 100 __ 2 1 0 _ 2 2 0 _ 3 2 1 __ 4 3 2 __ 2 2 1 _ 1 1 0

jburns _____________________15 8 4 ____100 __ 2 0 0 _ 1 1 0 _ 3 2 1 __ 5 4 2 __ 2 1 1 _ 1 0 0

NCforecaster89 _____________ 15 7 3 ____100 __ 1 1 0 _ 3 1 0 _ 3 2 1 __ 4 2 1 __ 2 1 1 _ 1 0 0 (Jul 210 rev)

crownweather ______________ 14 7 3 ____100 __ 1 0 0 _ 3 2 1 _ 3 2 1 __ 4 2 1 __ 2 1 0 _ 0 0 0

cobalt _____________________14 6 2 ____100 __ 1 0 0 _ 2 1 0 _ 4 2 1 __ 3 2 1 __ 2 1 0 _ 1 0 0

a few Universes below normal*_13 7 3 ____100 __ 0 0 0 _ 1 0 0 _ 3 2 1 __ 5 3 1 __ 3 2 1 _ 0 0 0

___ NHC mid-range _________ 13 7 2.5 __ 100 __ 0 0 0 _ 1 0 0 _ 3 2 1 __ 5 3 1 __ 3 2 0.5_0 0 0

Yoda ______________________13 6 2 ____100 __ 1 0 0 _ 2 1 0 _ 3 2 1 __ 5 2 1 __ 1 1 0 _ 0 0 0

OSUmetstud _______________ 13 5 1 ____ 100 __ 1 0 0 _ 1 0 0 _ 5 2 0 __ 4 2 1 __ 1 1 0 _ 0 0 0

pcbjr _____________________ 11 5 1 ____ 100 __ 0 0 0 _ 2 1 0 _ 4 2 0 __ 3 2 1 __ 1 0 0 _ 0 0 0

_______________________________________________________________________

Contest means ___16.5_8.2_3.4__100__1.6_0.5_0__2.4_1.0_0.2__3.7_2.2_1.0__4.8_3.0_1.5__2.3_1.4_0.6__0.5_0.2_0.0

(Consensus is the contest mean rounded off to nearest whole number -- these rounded off monthly numbers add up to 17 8 4)

Share this post


Link to post
Share on other sites

Our consensus from 24 forecasts (not including the NHC mid-range but closer to top of their range) is for a fairly average season by recent standards. The contest normal is derived from data since 1989 and is boosted by one due to the out-of-season May storm. But in general terms, the consensus looks for a somewhat more active early season (July in particular has higher numbers than average) and a somewhat flat end of the season (October shows this tendency).  

Share this post


Link to post
Share on other sites

The trends so far aren't as favorable for as active a start to the season, as I originally anticipated; such as a June hurricane. Unless I see a moderation of the current atmospheric conditions, I will likely adjust my July projections.  

Going through, and updating, my past research into June & July climatology, thought it'd be interesting to share that a surprisingly high percentage of seasons (49.7%) didn't have a single TS develop during both of those two consecutive months.  That said, I don't expect we get through both months without at least one TS formation.   

Share this post


Link to post
Share on other sites

Here's a tweet from my Twitter account (@tbrite89) on June 1, sharing numbers of all known TS/H/MH formations dating back to 1851:

Hurricaneseason2018 just officially began. Thought I’d share updated statistical research into #June TS activity for the NATL basin (1851-2017):

1) 94 tropical storm formations (1 every 1.78 years)

2) 33 hurricanes (1 per 5.1 years)

3) 2 “major” hurricanes (1 per 83.5 years)

Will add last occurrence of each:

1) TS = 2017 x 2

2) H = 2012 (Chris)

3) MH = 1966 (Alma)

Share this post


Link to post
Share on other sites

June's actual count was 0 0 0.

Scoring will be max of 4.0 points for pcbjr and afewUniversesbelownormal, also NHC mid-range.

3.5 points awarded to 1 0 0 (Blunder Storm, snowlover2, crownweather, cobalt, Yoda, OSUmetstud, and Contest Normal). 

3.0 points awarded to 1 1 0 (NCforecaster89, Orangeburgwx)

2.7 points for 1.6 0.5 0.0 (Contest mean)

2.5 points go to 2 0 0 forecasts (RJay, rtd208, jaxjagman, jburns)

2.0 points for 2 1 0 forecasts (SRRTA22, Roger Smith, jackstraw, jbamafanwx, UIWWildthing, NorthArlington101, hlcater, NCskywarn, also Consensus)

0.5 points for 3 1 0 forecast (Stebo)

0.0 points for 3 2 0 forecast (mryanwilkes)

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×