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The 1970 Pacific hurricane season was an above average event in the yearly formation of tropical cyclones in the eastern and central Pacific Ocean. This page will document my opinion on intensities during the season after seeing the information needed to form this opinion. This may include Dvorak numbers, Tropical Cyclone Advisories and reports, and any observations made during the tropical cyclone personally if it made landfall. Based on this summary, there were 20 tropical depressions, 19 tropical storms, 8 hurricanes, and 1 major hurricane. It is also worth noting that RSMC Honolulu (CPHC) and RSMC Redwood (EPHC [Eastern Pacific Hurricane Center]) were designated this season, helping to improve tropical cyclone observations and forecasts in the process.

Summary

Name SSHWS category 1-min winds Pressure
Adele Category 1 hurricane 80 mph 985 mbar
Blanca Tropical Storm 60 mph 999 mbar
Connie Tropical Storm 45 mph 1004 mbar
Dolores* Tropical Depression 35 mph 1005 mbar
Eileen Tropical Storm 50 mph 1000 mbar
Francesca Category 2 hurricane 100 mph 973 mbar
Gretchen Category 1 hurricane 80 mph 985 mbar
Helga Tropical Storm 60 mph 997 mbar
Ione I ** Tropical Storm 65 mph 994 mbar
Ione II ** Tropical Storm 60 mph 997 mbar
Joyce Category 1 hurricane 75 mph 988 mbar
Kristen Tropical Storm 45 mph 1002 mbar
Lorraine Category 3 hurricane 115 mph 960 mbar
Maggie Tropical Storm 70 mph 991 mbar
Norma Category 1 hurricane 80 mph 985 mbar
Dot Category 1 hurricane 80 mph 985 mbar
Orlene Tropical Storm 65 mph 994 mbar
Patricia Category 2 hurricane 100 mph 973 mbar
Rosalie Tropical Storm 60 mph 997 mbar
Selma Tropical Storm 70 mph 991 mbar

NOTES:

  • A * indicates that the storm was downgraded to a tropical depression in reanalysis
  • A ** indicates the storm was later found to have been 2 systems
  • A bold name indicates a storm that developed in the central Pacific

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