Timeline of the 2012 Pacific hurricane season

Timeline of the
2012 Pacific hurricane season
Season summary map
Season boundaries
First system formedMay 14, 2012
Last system dissipatedNovember 3, 2012
Strongest system
NameEmilia
Maximum winds140 mph (220 km/h)
(1-minute sustained)
Lowest pressure945 mbar (hPa; 27.91 inHg)
Longest lasting system
NameDaniel and
Emilia (tie)
Duration8.25 days
Storm articles
Other years
2010, 2011, 2012, 2013, 2014

The 2012 Pacific hurricane season was an above-average year in which seventeen named storms formed.[nb 1] The hurricane season officially began on May 15 in the east Pacific—defined as the region east of 140°W—and on June 1 in the central Pacific—defined as the region west of 140°W to the International Date Line—and ended on November 30 in both regions. These dates conventionally delimit the period during each year when most tropical cyclones form in the northeastern Pacific Ocean.[2] This year, the first storm of the season, Tropical Storm Aletta, formed on May 14, and the last, Tropical Storm Rosa, dissipated on November 3.

The season produced seventeen tropical storms; ten became hurricanes, and five further intensified into major hurricanes.[nb 2] Impact during the season was relatively minimal. In late May, Hurricane Bud paralleled the western Mexico coastline before dissipating, causing minor damage and but no reported fatalities.[4] In mid-June, Hurricane Carlotta came ashore in Oaxaca at Category 2 hurricane intensity, making it the easternmost tropical cyclone in the basin to make landfall at hurricane intensity since 1966. The storm killed seven and caused $12.4 million (2012 USD) in damage.[5]

This timeline includes information that was not released in real time, meaning that data from post-storm reviews by the National Hurricane Center, such as a storm that was not operationally warned upon, has been included. This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season.

  1. ^ "Background Information: East Pacific Hurricane Season". Climate Prediction Center. National Oceanic and Atmospheric Administration. May 23, 2013. Retrieved November 26, 2013.
  2. ^ Christopher W. Landsea (June 2, 2011). "G: Tropical Cyclone Climatology". In Neal Dorst (ed.). Hurricane Research Division: Frequently Asked Questions. National Oceanic and Atmospheric Administration. G1) When is hurricane season ?. Archived from the original on June 15, 2006. Retrieved November 26, 2013. {{cite book}}: |work= ignored (help)
  3. ^ Christopher W. Landsea (June 2, 2011). "A: Basic Definitions". In Neal Dorst (ed.). Hurricane Research Division: Frequently Asked Questions. National Oceanic and Atmospheric Administration. A3) What is a super-typhoon? What is a major hurricane ? What is an intense hurricane ?. Archived from the original on June 15, 2006. Retrieved November 26, 2013. {{cite book}}: |work= ignored (help)
  4. ^ Eric S. Blake (October 9, 2012). Tropical Cyclone Report: Hurricane Bud (PDF). National Hurricane Center (Report). National Oceanic and Atmospheric Administration. pp. 1, 2, 4. Retrieved November 23, 2013.
  5. ^ July 2012 Global Catastrophe Recap (PDF). Impact Forecasting (Report). AON Benefield. 2012. Archived from the original (PDF) on October 30, 2012. Retrieved February 2, 2014.


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