Hurricanes and Tropical Storms - August 2018


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

August 2018 Tropical Cyclone Counts
Storm Type August 2018 August 1981-2010 Average Record Most for August
Period of Record: 1851-2018
Tropical Storm
(Winds > 39 mph)
2 3.3 8
(2004)
Hurricane
(Winds > 74 mph)
0 1.6
5
(1893, 1995, 2004)
Major Hurricane
(Winds > 111 mph)
0 0.7 3
(1886, 1893, 1950, 2004)
August 2018 Individual Tropical Cyclones
Name Dates of winds
>39 mph
Maximum
Sustained Winds
Minimum
Central Pressure
Landfall
Tropical Storm Debby August 7th–9th 50 mph 1000 mb N/A
Tropical Storm Ernesto August 15th–18th 45 mph 999 mb N/A

East Pacific

August 2018 Tropical Cyclone Counts
Storm Type August 2018 August 1981-2010 Average Record Most for August
Period of Record: 1949-2018
Tropical Storm
(Winds >39 mph)
7 4.2 8
(1968)
Hurricane
(Winds >74 mph)
4 2.2
6
(1972, 2018)
Major Hurricane
(Winds >111 mph)
3 1.1 4
(1972, 1993, 2018)
August 2018 Individual Tropical Cyclones
Name Dates of winds
>39 mph
Maximum
Sustained Winds
Minimum
Central Pressure
Landfall
Hurricane Hector (Cat. 4) July 31st–13th 155 mph 936 mb N/A
Tropical Storm Ileana August 4th–7th 65 mph 998 mb N/A
Hurricane John (Cat. 2) August 5th–10th 105 mph 969 mb N/A
Tropical Storm Kristy August 7th–11th 70 mph 991 mb N/A
Hurricane Lane (Cat. 5) August 15th–29th 160 mph 922 mb N/A - impacts on Hawaii
Hurricane Miriam (Cat. 2) August 26th– September 2nd 100 mph 974 mb N/A
Hurricane Norman (Cat. 4) August 25th– ongoing at time of publication 150 mph 937 mb N/A

Significant Events

Hurricane Lane was a long-live tropical cyclone that tracked from the East Pacific basin into the Central Pacific basin between August 15th and 29th. Lane formed from a weak low pressure system off the southwest coast of Mexico, reaching tropical depression strength on the 15th. Lane became a tropical storm later that day. Lane quickly intensified into a hurricane on the 17th and reached Category 4 strength on the 18th. Lane crossed into the Central Pacific basin on the 19th and reached its peak intensity on the 22nd as a Category 5 storm with maximum sustained winds of 160 mph. On the 24th the storm turned more northward and headed towards the Hawaiian Islands, but wind shear caused the storm to weaken. The storm continued to weaken as it moved just to the southwest of Hawaii and at its closest point to Honolulu (110 miles), the storm was a Category 1 hurricane. Lane then took a more westward turn, away from the islands and dissipated by the 29th. Lane was only the second Category 5 hurricane to pass within 250 miles of Hawaii, with the last being Hurricane John in 1994. There were some major impacts associated with Lane including heavy rains and strong winds. The heavy rains mostly impacted the Big Island and Kauai, with widespread reports of more than 40 inches of rain causing flooding and mudslides on the Big Island. There was one preliminary report of more than 52 inches of rain. The storms also whipped up winds across the state. The state has been dealing with moderate drought for several months and the winds caused a wildfire to burn out of control on Maui destroying 20 homes. At least one fatality was blamed on Hurricane Lane.


Citing This Report

NOAA National Centers for Environmental Information, State of the Climate: Hurricanes and Tropical Storms for August 2018, published online September 2018, retrieved on September 20, 2018 from https://www.ncdc.noaa.gov/sotc/tropical-cyclones/201808.

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