Hurricanes and Tropical Storms - July 2017


Note: This report catalogs recent tropical cyclones across the North Atlantic and East Pacific and places each basin's tropical cyclone activity in a climate-scale context. It is not updated in real time. Users seeking real time status and forecasts of tropical cyclones should visit The National Hurricane Center.

North Atlantic

July marks a continuation of a record-long major hurricane (Category 3 or stronger) landfall drought in the United States. The last major hurricane to make landfall in the U.S. was Wilma on October 24, 2005. This major hurricane drought surpassed the length of the eight-years from 1861-1868 when no major hurricane struck the United States' coast. On average, a major hurricane makes landfall in the U.S. about once every three years. The reliable record of landfalling hurricanes in the U.S. dates back to 1851.

July 2017 Tropical Cyclone Counts
Storm Type July 2017 July 1981-2010 Average Record Most for July
Period of Record: 1851-2017
Tropical Storm
(Winds > 39 mph)
2 1.1 5
(2005)
Hurricane
(Winds > 74 mph)
0 0.4
3
(1916,1966,2005)
Major Hurricane
(Winds > 111 mph)
0 0.1 2
(1916,2005)
July 2017 Individual Tropical Cyclones
Name Dates of winds
>39 mph
Maximum
Sustained Winds
Minimum
Central Pressure
Landfall
Tropical Storm Don July 17nd– 19th 50 mph 1003 mb N/A
Tropical Storm Emily July 31nd– August 2nd 45 mph 1005 mb Anna Maria Island, Florida

Summary of July 2017 Events

A stalled cold front over the northern Gulf of Mexico provided enough atmospheric energy for Tropical Storm Emily to rapidly develop off the west coast of Florida on July 31st. Emily formed immediately off shore, reaching maximum strength just before making landfall in the evening on the 31st near Anna Maria Island, Florida. Emily reached its peak intensity at landfall with maximum sustained winds of 45 mph and a central minimum pressure of 1005mb. The storm quickly weakened to a tropical depression after landfall. As the storm slowly traversed Florida, it dropped heavy rains in southern portions of the state. Miami Beach received 6.97 inches of rain in just three and a half hours on August 1st. The flooding rains occurred during high tide and inundated numerous buildings. Emily also spawned an EF-0 tornado near Bradenton, which destroyed two barns.


East Pacific

July 2017 Tropical Cyclone Counts
Storm Type July 2017 July 1981-2010 Average Record Most for July
Period of Record: 1949-2017
Tropical Storm
(Winds >39 mph)
5 3.6 7
(1985, 2015, 2017)
Hurricane
(Winds >74 mph)
4 1.9
5
(2017)
Major Hurricane
(Winds >111 mph)
2 1
(about one every three years)
3
(1978, 1985, 1992, 2017)
July 2017 Individual Tropical Cyclones
Name Dates of winds
>39 mph
Maximum
Sustained Winds
Minimum
Central Pressure
Landfall
Hurricane Eugene (Cat. 3) July 7th– 12th 115 mph 965 mb N/A
Hurricane Fernanda (Cat. 4) July 12th– 22nd 145 mph 947 mb N/A
Tropical Storm Greg July 17th– 26th 60 mph 1001 mb N/A
Hurricane Hilary (Cat. 2) July 21st– 31st 105 mph 972 mb N/A
Hurricane Irwin (Cat. 1) July 22nd– August 1st 90 mph 980 mb N/A

Citing This Report

NOAA National Centers for Environmental Information, State of the Climate: Hurricanes and Tropical Storms for July 2017, published online August 2017, retrieved on November 19, 2017 from https://www.ncdc.noaa.gov/sotc/tropical-cyclones/201707.

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