2009 Atlantic Hurricane Season Outlook
ANTIGUA AND BARBUDA METEOROLOGICAL SERVICE
V. C. BIRD INTERNATIONAL AIRPORT
JUNE 2, 2009
Klotzbach and Gray have downgraded their hurricane season forecast
Overview
Klotzbach and Gray of the Colorado State University (CSU) released their latest forecast today June 2 for the 2009
Hurricane Season which runs from June 1 through November 30. The forecast downgrades the previous prediction by
one (1) hurricane. On May 21, the U.S. National Oceanic and Atmospheric Administration (NOAA), released its forecast
for the 2009 Atlantic Hurricane Season, predicting a total of 9 to 14 named storms of which 4 to 7 will intensify to
hurricanes, including 1 to 3 becoming major hurricanes - rated at Category 3 or higher. This forecast is consistent with
that of Klotzbach and Gray. However, Mark Saunders and Adam Lea of the Tropical Storm Risk Consortium (TSR) differ
in their forecast for the season. Instead, Saunders and Lea are predicting an above normal Atlantic Hurricane Season,
similar to last year.
Forecast Source
Forecast Date
Tropical Storms
Hurricanes
NOAA
May 21, 2009
9 – 14
4–7
CSU
April 7, 2009
12
6
CSU
June 2, 2009
11
5
TSR
April 7, 2008
15
7- 8
59-yr Antigua
1950 - 2008
0.6
0.4
Climatology1
59-yr Atlantic
1950 - 2008
10.8
6.2
Climatology
30-yr Atlantic
1979 - 2008
11.8
6.4
Climatology
Table 1: 2009 Hurricane Season Forecast. 1Storms passing within 105 nautical miles of Antigua.
Major Hurricanes
1–3
2
2
3-4
0.2
2.7
2.6
The near normal season projected is due mainly to the possibility of an El Nino episode occurring in the equatorial
Eastern Pacific this summer, cooler than normal temperatures in the Eastern Tropical Atlantic and a strong
Bermuda/Azores High Pressure System. The 2008 Hurricane Season produced 16 named storms of which 8 became
hurricane, including 5 major hurricanes. This was consistent with the forecasts issued by all three organization mentioned
above. The science behind the outlook is rooted in the analysis and prediction of current and future global climate patterns
as compared to previous seasons with similar conditions.
Dale Destin
Climatologist Ag.
iweatherreport@gmail.com