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The 1963 Pacific hurricane season was a below-average season, with 8 storms and 4 hurricanes forming. The season ran through the summer and fall of 1963.

1963 Pacific hurricane season
1963 Pacific hurricane season summary map.png
Season summary map
Seasonal boundaries
First system formedJuly 14, 1963
Last system dissipatedOctober 14, 1963
Strongest storm
 • Maximum winds85 mph (140 km/h)
(1-minute sustained)
 • Lowest pressure961 mbar (hPa; 28.38 inHg)
Seasonal statistics
Total depressions8
Total storms8
Total fatalitiesUnknown
Total damageUnknown
Related articles
Pacific hurricane seasons
1961, 1962, 1963, 1964, 1965

The strongest of these storms were Glenda and Mona, which both had 85 mph (135 km/h) winds. The first storm, Emily, made landfall near Manzanillo, Mexico as a Category 1 hurricane. The next hurricanes, Florence and Glenda, stayed far away from land. Jennifer-Katherine made landfall on Baja California as a tropical depression on September 18. Tropical Storm Irah affected Hawaii as a tropical depression. An unnamed tropical storm curved round Hawaii from 2–8 August. Lillian became post-tropical shortly before making landfall on September 29 with winds of 50 mph. Mona, the final storm of the season made landfall around about the same area as Lillian did with winds of 85 mph.



Timeline of activity in the 1963 Pacific hurricane season
Saffir-Simpson Hurricane Scale 

Hurricane EmilyEdit

Category 1 hurricane (SSHWS)
Duration29 June – 30 June
Peak intensity85 mph (140 km/h) (1-min)  996[1] mbar (hPa)

Hurricane Emily formed on June 29 while moving west. It then turned to the north and dissipated over the mountainous regions of Mexico.

Hurricane FlorenceEdit

Category 1 hurricane (SSHWS)
Duration14 July – 17 July
Peak intensity85 mph (140 km/h) (1-min)  992[1] mbar (hPa)

Hurricane Florence followed nearly a due west track as it persisted to move away from land and eventually weakened and dissipated without any effect on a landmass.

Hurricane GlendaEdit

Category 1 hurricane (SSHWS)
Duration19 July – 21 July
Peak intensity85 mph (140 km/h) (1-min)  997[1] mbar (hPa)

Hurricane Glenda stayed at sea.

Tropical Storm FourEdit

Tropical storm (SSHWS)
Duration2 August – 8 August
Peak intensity50 mph (85 km/h) (1-min) 

Tropical Storm Four stayed over the ocean. Several vessels encountered gale-force winds in this storm from the 8th through the 10th as it proceeded northward across the shipping lanes. On the 12th the remnants of the cyclone dissipated near 50N 165W.

Tropical Storm Jennifer-KatherineEdit

Tropical storm (SSHWS)
Duration9 September – 18 September
Peak intensity50 mph (85 km/h) (1-min)  996[1] mbar (hPa)

Tropical Storm Jennifer-Katherine moved through the Eastern Pacific in mid-September. It moved northward, and hit Baja California on September 18, bringing heavy rain to southern California. A total of 6.50 inches (165 mm) fell in the mountains of southern California from the storm.[2] The storm had two names because it was assumed that Jennifer dissipated and Katherine reformed, but it was in actuality one storm.

Tropical Storm IrahEdit

Tropical storm (SSHWS)
Duration12 September – 21 September
Peak intensity50 mph (85 km/h) (1-min)  999[1] mbar (hPa)

Irah peaked at a tropical storm and made a direct hit on Hawaii as a tropical depression.

Tropical Storm LillianEdit

Tropical storm (SSHWS)
Duration24 September – 29 September
Peak intensity50 mph (85 km/h) (1-min)  991[1] mbar (hPa)

Tropical Storm Lillian paralleled the Mexican coast. It was originally moving to the north-west but turned to the west-northeast on 28 September hit Western Mexico as a tropical storm.

Hurricane MonaEdit

Category 1 hurricane (SSHWS)
Duration17 October – 19 October
Peak intensity85 mph (140 km/h) (1-min)  961[1] mbar (hPa)

Hurricane Mona hit western Mexico on October 19.

Storm namesEdit

The following names were used for named storms that formed in the eastern Pacific in 1963. No names were retired from this list. This is a part of list 2, which was used from 1960-1965.[3][4] Names that were not assigned are marked in gray.

  • Ava (unused)
  • Bernice (unused)
  • Claudia (unused)
  • Doreen (unused)
  • Emily
  • Florence
  • Glenda
  • Hazel
  • Irah
  • Jennifer
  • Katherine
  • Lilian
  • Mona
  • Natalie (unused)
  • Odessa (unused)
  • Prudence (unused)
  • Roslyn (unused)
  • Silvia (unused)
  • Tillie (unused)
  • Victoria (unused)
  • Wallie (unused)


  1. ^ a b c d e f g National Oceanic and Atmospheric Administration (1963). "The Climatological Data National Summary 1963". National Climatic Data Center. Retrieved August 13, 2014.
  2. ^ National Weather Service Forecast Office San Diego, California. Warnings for Tropical Storm Jennifer were issued from September 12 through 15 when a lack of observations led to an ending of observations. The final position was extrapolated at 18.8N 121.7W. Tropical Storm Katherine was identified on September 17 near 28.5N 117.0W and advisories were initiated. A History of Significant Local Weather Events. Archived February 29, 2008, at the Wayback Machine Retrieved on 2007-02-02.
  3. ^ Unattributed (1970). "National Hurricane Operations Plan 1970 – Tropical Cyclone Names" (PDF). Environmental Science Services Administration, Office of the Federal Coordinator for Meteorological Services and Supporting Research. US Department of Commerce. pp. 96–98. Retrieved August 7, 2011.
  4. ^ Padgett, Gary (July 11, 2008). "Monthly Global Tropical Cyclone Summary: November 2007 First Installment". Australian Severe Weather. Retrieved February 10, 2010.

See alsoEdit