Although interestingly enough, this prediction at first glance looks like a good one, and apparently looks far better than the CSU outlook from August. However, after further review, climatology is the real winner this year.
Rather than focus on the low numbers, which is easy to do, let's verify this out agains the CSU outlook posted August 1st.
All forecasts/guesses should be compared to a standard to determine relative skill. The standard, in tropical meteorology, is climatology. In other words...taking the
average season and using that as a baseline, a forecast is considered skillful if it can improve against the seasonal averages. If it is worse, then it is considered not to be helpful. This is also why CLIPER is still run...it is used as a basis for skill comparison.
So lets start there. If the season were to end today...how would climatology fare vs CSU and Frank2?
Climatology
Predicted Named Storms/Actual/Error: 10.1/9.0/+12%
Predicted Hurricanes: 5.9/5.0/+18%
Predicted Intense Hurricanes: 2.5/2.0/+25%
Source:
http://www.nhc.noaa.gov/gifs/pastprofileAT.gif
Note: Climatology is as close as it can get to Intense Hurricanes, since there is no such thing as 1/2 of an intense hurricane.
CSU August 1 Update
Predicted Named Storms/Actual/Error: 15/9/+67%
Predicted Hurricanes: 7.0/5.0/+40%
Predicted Intense Hurricanes: 3.0/2.0/+50%
Source:
http://typhoon.atmos.colostate.edu/fore ... 6/aug2006/
Frank2
Predicted Named Storms/Actual/Error: 9/9/0%
Predicted Hurricanes: 3.0/5.0/-40%
Predicted Intense Hurricanes: 1.0/2.0/-50%
Source: This post.
So, if the season were to end today, Frank2 would win the battle of named systems.
However, climatology gets the most important 2 categories. Hurricanes and Intense Hurricanes, because the
absolute error between CSU and Frank2 is the same. In the scheme of verification...it makes no difference if the error is positive or negaitve...intensity error rate is calculated by taking the difference between the expected and actual verified number. By this stanadard...the CSU outlook and Frank2 tie for H/IH.
It is also interesting to note that if the season is able to produce just one more named storm, climatology would sweep all three categories and be the 2006 forecast champion.
So if there is anything this season has taught us...it is that climatology still wins sometimes. By all measures this has been an average season so far...almost as average as it can possibly be.
MW
Disclaimer: This is an objective analysis of various forecasts vs. climatology of the hurricane season ended today. All conclusions/calculations are open to review. This was made as personal, scientific observations are not the opinion of Storm2K...it's moderators or anyone else other than good old MWatkins. Use at your own risk...all rights reserved. No portion of this broadcast may be retransmitted without the express written consent of Major League Baseball.