Verification of 2010 Hurricane Forecast
Forecast issued May 28, 2010 - Baltimore, Maryland | TROPICAL ZONE | FACEBOOK
Tropical Team Contributors: Ryan Krimm, Aaron Salter, Daniel Ross, Rich Foot
5:45 pm 11.30.2010 Prior to start of the 2010 Hurricane Season, our Tropical Team predicted for the Atlantic Basin a total of 19 named tropical systems (NTS), 10 of which would become hurricanes, and 5 would be major hurricanes. As of November 30, 2010, observed results show exactly 19 named tropical systems, twelve of which have become hurricanes, and five systems reached to Category 3 major hurricane status with winds at or above 111 mph.

Our team also delineated the hurricane forecast month-by-month, with the original graphic in the section below. Note that the official Atlantic basin tropical cyclone season continues to November 30 each year. If additional systems develop, will revise our grading scheme with final results. Preliminary verification for the baseline predicted tropical cyclone events shows these results, in a % deviation/academic grading format as follows. The screen shown here was part of a TV news spot featuring the Maryland Forecast Team by CBS Channel 13 WJZ in Baltimore, MD on July 1, 2010.
Named Tropical Systems: Predicted/Observed- 19/19; 100% of predicted
Hurricanes: Predicted/Observed: 10/12; 120% of predicted
Major Hurricanes: Predicted/Observed: 5/5, 100% of predicted1. Report published: May 28, 2010
2. Public presentation of forecast: June 4, 2010
3. Public release of forecast via news media: July 1, 2010


SYNOPSIS of 2010 HURRICANE FORECAST and OBSERVATIONS
1. Occurence Much above normal tropical cyclone formation in the Atlantic basin.
Observations:The Atlantic basin seasonal average is 10-15 tropical cyclones*, thus the 2010 observed cyclone data is between 113 %- 170% of normal as of October 31, 2010.
Sources: NOAA/NHC Tropical Cyclone Climatology
Pew Center on Global Climate Change
*The climatological average from 1850-1990 is 10 named tropical cyclones, the 1998-2007 average was 15 named tropical cyclones. Thus we presented a range of 10-15.
*The climatological average from 1850-1990 is 10 named tropical cyclones, the 1998-2007 average was 15 named tropical cyclones. Thus we presented a range of 10-15.
2. Intensity Five major hurricanes, two or more make a U.S. landfall.
Observations: Five major hurricanes developed in 2010*, none made U.S. landfall.
*As of 10-31-2010
3. Risk regions Notable landfalls are projected for:
Northern and eastern Gulf of Mexico from Louisiana to western Florida coast;3. Risk regions Notable landfalls are projected for:
Carolinas and southern Mid-Atlantic at risk for a direct landfall or secondary effects.
Observations:
While Florida to Louisiana did not experience significant landfalling systems, the Carolinas and the Mid-Atlantic did observe considerable secondary effects from Hurricanes Danielle, Earl, Igor and historical rainfall from the remnants of Extra-Tropical Storm Nicole.
4. Frequency Periods of high activity in July, from mid-August through September
Observations:
June 2010: 1 named system which became a hurricane;
July 2010: 1 named system which became a tropical storm; 0 hurricanes;
August 2010: 4 named systems = 2 tropical storms, 2 major hurricanes;
September 2010: 8 named systems = 3 tropical storms, 2 hurricanes, 3 major;
October 2010: 4 named systems, all of which became hurricanes.
4. Frequency Periods of high activity in July, from mid-August through September
Observations:
June 2010: 1 named system which became a hurricane;
July 2010: 1 named system which became a tropical storm; 0 hurricanes;
August 2010: 4 named systems = 2 tropical storms, 2 major hurricanes;
September 2010: 8 named systems = 3 tropical storms, 2 hurricanes, 3 major;
October 2010: 4 named systems, all of which became hurricanes.