Wednesday, September 02, 2009

There is precious little tropospheric water vapor to power these storms.

Weather aids firefighters, but some flanks of fire have lethal potential (click here)
Higher humidity and a bit lower temperatures help crews battling the Station fire in the Angeles National Forest. But the northern and southeastern fronts could re-erupt, officials said.
By Louis Sahagun, Corina Knoll and Joe Mozingo
September 2, 2009

Higher humidity and slightly lower temperatures helped firefighters inch closer to subduing the monstrous fire that has lashed about the San Gabriel Mountains for a week, but they were scrambling late Tuesday in gusty winds to keep it from overrunning Mt. Wilson.The reprieve from extremely dry weather had fire crews feverishly setting back fires and cutting fire lines throughout the day, raising the blaze's containment to 22% in the evening, up from 5% the night before. Southwest winds largely pushed the fire deeper into the forest....


There is a huge absence of water vapor directly west of Jimena. The storm will effect some changes to California climate. The desending cold air mass coming into the center of North America might keep Jimena traking straight north. Southern California might see some rain yet.

September 2, 2009
1330z
UNISYS Water Vapor GOES West Satellite (click title for 12 hour loop)

By Brian K. Sullivan and Alex Morales
Sept. 2 (Bloomberg) -- Mexico prepared for Hurricane Jimena to make landfall on the Baja California peninsula today, after evacuating thousands of residents and putting Pacific Ocean resort areas on red alert.
Jimena’s maximum sustained winds weakened to 169 kilometers (105 miles) per hour, from as high as 250 kph early yesterday, the U.S. National Hurricane Center said on its Web site at about 6 a.m. Los Cabos time. The hurricane was centered 50 kilometers south of Cabo San Lazaro and moving north-northwest at 20 kph.
“The core of Jimena will be near or just offshore the west coast of the southern Baja California peninsula today and near or over the central Baja California peninsula on Thursday,” the center said. “A dangerous storm surge along with large and dangerous battering waves will produce significant coastal flooding along the Baja California peninsula.”
Forecasters also are monitoring an Atlantic system, Tropical Storm Erika, which was about 255 kilometers east- southeast of the northern Leeward Islands. The storm was moving west-northwest at 11 kph and maximum winds decreased to 75 kph from 85 kph earlier today, the center said in an advisory at about 8 a.m. Miami time....