By Eric Leister, Meteorologist
June 7,2015; 9:13PM,EDT
Despite Blanca weakening, dangers loom for residents and visitors on Mexico's Baja California Sur into Monday.
Blanca is no longer the major hurricane it was last week. Cooler waters in the path of Blanca are forcing the tropical storm to weaken as it approaches Mexico's Baja California Sur.
This satellite loop of Blanca is courtesy of NOAA.When Blanca was a major hurricane it marked the earliest on record, since 1971, that two major hurricanes have formed in the Eastern Pacific. There have been four other seasons that have had two major hurricanes develop before the end of June.
Blanca is rapidly weakening and weakened to a tropical storm prior to making landfall near Puerto San Carlos on Sunday night. The Baja California Peninsula suffered widespread damage after Hurricane Odile made landfall across the region last year.
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While paling in comparison to Odile at landfall, Blanca will still threaten Baja California Sur and southern Baja California Norte with torrential rainfall, dangerous surf and locally damaging winds.
Conditions will deteriorate in a south to north fashion across Baja California Sur through Monday with some rain even spreading to central parts of Sonora state, near Hermosillo.
Rainfall will generally total 75 to 150 mm (3 to 6 inches) across parts of the Baja California Sur, which threatens to cause flash flooding and mudslides. The greatest threat for heavy rain will be near Puerto San Carlos, north to near the border with Baja California Norte.
Extremely dangerous surf and an inundating storm surge will pound the peninsula's southern tip, south of where Blanca comes onshore. The coastline from Puerto San Carlos to Cabo San Lucas will also face the greatest threat of wind gusts between 65 and 110 kph (40 and 70 mph).
Into Tuesday, moisture from the dissipating system will move across Baja California Norte and northwestern Sonora bringing the threat for flash flooding. By this point, wind will no longer be a threat as Blanca will have weakened to a tropical rainstorm.
According to AccuWeather Senior Meteorologist Alex Sosnowski, "The remnants of Blanca will inject another dose of moisture, in the form of showers and thunderstorms into the southwestern U.S. this week."
Along with beneficial rain in some areas, too much rain could fall too fast to cause isolated incidents of flooding.
The moisture will follow only a few days behind some moisture produced by the remnants of Andres.
Contributions by Meteorologist Adam Douty
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