Accuracy of the GWO Predictions
Since 2006
GWO's 4 year hurricane predictions released in December 2009 accurately predicted Hurricane Irene in 2011 and Super Storm Sandy and Hurricane Isaac in 2012. Copies of the Predictions are available by clicking here.
How Well GWO Predicted
2016 - 2017 - 2018 - 2019 Hurricane Seasons
GWO predicted 6-months in advance - all landfall locations in 2016 - 2019
2019 - Predicted Category 2-5 Dorian path and landfall
Category 1 Barry's exact landfall location
2018 - Predicted Category 4 Michael exact landfall location (Upper Gulf)
Category 1 Florence (Carolina's)
2017 - Predicted Category 4 Irma exact landfall location (Western Florida) - Harvey (Texas)
Category 1 Nate (Mobile Ala.)
2016 - Predicted Coastal hugging Mathew (Florida-Carolina's) -
Category 1 Hermine (upper Gulf)
Average Hurricane Season 11 named storms 6 hurricanes 0.6 U.S. major impact landfalls
2019 season 14 named storms 5 hurricanes 2 U.S. major impact landfalls (and where)
2019 prediction by GWO 13 named storms 6 hurricanes 2 U.S. landfalls (and where)
other predictions 9-15 named storms 4-8 hurricanes do not predict landfalls - or locations
2018 season 15 named storms 8 hurricanes 2 U.S. major impact landfalls (and where)
2018 prediction by GWO 16 named storms 8 hurricanes 2 U.S. major impact landfalls (and where)
other predictions 12 named storms 5 hurricanes do not predict landfalls - or locations
Average Hurricane Season 11 named storms 6 hurricanes 0.6 U.S. major impact landfalls
2017 Season 18 named storms 10 hurricanes 2 U.S. major impact landfalls (and where)
2017 Prediction by GWO 16 named storms 8 hurricanes 2 U.S. major impact landfalls (and where)
other predictions 12 named storms 5 hurricanes do not predict landfalls - or locations
Average Hurricane Season 11 named storms 6 hurricanes 0.6 U.S. major impact landfalls
2016 Season 15 named storms 7 hurricanes 2 U.S. major impact landfalls (and where) 2016 Prediction by GWO 15 named storms 7 hurricanes 2 U.S. major impact landfalls (and where)
other predictions 14 named storms 6 hurricanes do not predict landfalls - or locations
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Press Release 5 Months Prior to the Beginning of the 2017 Hurricane Season
Strong 2017 Hurricane Season - full Press Release click here
United States will have 6 Named Storm Landfalls
Most Dangerous and Costly Season in at least 12-years
GWO's Prediction Zones Released in January 2017 and 2018 - Correctly Predicted
Category 4 Michael ( Upper Gulf) and Category 1 Florence (Carolina's)
Great Florida Hurricane of 2017 - breaking out of 12 year quiet period
Texas - breaking out of their 9-year quiet period
2 Major Impact Hurricanes for the United States (had 2 - Harvey and Irma)
6 Named Storms will make landfall (had 6)
View - Actual Florida Predictions Released in Feb. 2017 click here
Pre-Season Prediction Verification Accuracy by Organization 2009 - 2017 click here
Prediction Accuracy by Organizations Past 9-Years 2009-2017 click here
Predicted: 9 Months in Advance
2018 Would be another Expensive and Dangerous Season -
with 2 major impact hurricanes
Predicted Category 4 Michael (upper Gulf)
Predicted Category 1 Florence (Carolina's)
2017 Would be the Most Expensive and Dangerous Season Since 2005
2017 Would have 6 named storm landfalls in 2017 - had 6
2017 El Nino would not develop - Neutral Conditions for the Season
2017 Category 3-4 Hurricane Irma - Great Florida Hurricane of 2017
2017 Category 1 Nate landfall between New Orleans - Mobile
2017 Texas - breaking out of their 9-Year Hurricane Drought
Landfall just above Corpus Christi
2017 Hurricane Conditions for New England -
Super Storm came October 30th with Category 1 conditions
2016 Coastal hugger Category 3 Hurricane Mathew FL-NC
2016 Category 1 Hurricane Hermine (Upper Gulf) with Tropical Storm
conditions into Zones 8-5-4-3 (Georgia to the Carolina's)
click here for 2016 Review
Pre-Season Hurricane Accuracy by Organizations click here
Hurricane Climatology by Month click here
Hurricane and Weather Graphics click here
GWO's 11 U.S. Zones Lesser Antilles Zones Sample Zone Prediction Prediction Accuracy by Organizatio
GWO Correctly Predicted - 1 to 3 Years in Advance
with a near 90% hot zone accuracy since 2006
2015 Predicted 10 Named Storms - there were 10
2014 Predicted there would not be an El Nino
2013 No hurricanes for United States
Only organization to predict less than 13 named storms
2012 hybrid Hurricane Sandy .. strongest cycle in 50 to 110 years
2012 Hurricane Issac
2011 Hurricane Irene ... strongest cycle in 50 to 110 years
2011 the Great Mississippi River Flood
2009 El Nino - No Hurricane Strikes
2008 Hurricane Ike
Predictions for All Zones Since 2006
shows GWO's predictions and the actual Storm Tracks during the hurricane season
2006 Click here
2007 Click here
2008 Click here
2009 Click here
2010 Click here
2011 Click here
2012 Click here
2013 Click here
