Hurricane Irma an Extreme Storm Surge Threat to the U.S. and Bahamas by Dr. Jeff Masters | Category 6 | Weather Underground

Forecasters at the National Hurricane Center have their hands full with two new hurricanes joining Irma on Wednesday afternoon. Not since 2010 has the Atlantic had three hurricanes at once, as noted by David Roth (NOAA/NWS) on Twitter. The Atlantic record for simultaneous hurricanes is four, set in 1893 and 1998. The 2017 hurricane season to date is more than twice as active as usual—we’ve had a season’s worth of named storms, hurricanes, and intense hurricanes before even getting to the climatological halfway point of the season (September 10)

Source: Hurricane Irma an Extreme Storm Surge Threat to the U.S. and Bahamas by Dr. Jeff Masters | Category 6 | Weather Underground