Great satellite photo:
Storm 64 approaching the Southwest US
In this picture, storm 64 is seen pushing north from a position well south of California on April 6, driven by a subtropical jet stream. To the north is a strong high pressure “ridge” (clear area). Storm 64 came to be when a low pressure “trough” over California and a cutoff low from the North Pacific dropped far south and then caught the jet into the California trough. This is a rare weather pattern, and a wet one, and one associated with late-season weather and an El Niño. The El Niño is almost gone, but its effect on the atmosphere takes a good half-year to wear off after it’s gone. It turned into a powerful storm. In this satellite photo, it’s bending the high pressure ridge (the clear area) sideways. Such ridges usually run south to north. This is resulting in an “opposite” effect on West Coast weather. Warm, bordering on downright hot, sunny weather normal for California is now in the Pacific Northwest and rainy, cool weather has come to the Mojave Desert! I’ve seen “backdoor lows” before, but this is my first “back door high!” By Sunday, Oregon will have broken heat records for early April, and California daily rainfall records for early April. What a storm! The storm petered out on Sunday, 160410. The next system, a much more normal Pacific Northwest system, swept all remains of Storm 64 away on Tuesday, 160412.
Surprise! Two storms for SoCal!
For the latest events of this storm, scroll the the Bottom
First one is happening now, Storm 64.
[Note: What wound up happening was all one storm event – there were two or more parts at first, but it all merged, basically, making it it exceeding hard to tell what if any separation of storms there might have been.]
San Diegans got their day started and just after 9 am, the rain began to fall, and would well into afternoon. By afternoon, Los Angeles received some showers too.
And, don’t look now, but as of 7:00 pm, rain has already begun to fall in the southern San Joaquin Valley…
The sky over Fresno this evening at 1900 PDT…
This first storm appears on weather charts as two low pressure cells along a trough running from California’s Mojave Desert south into Mexico.
Second one comes in Saturday, Storm 65. Look at how far south this one is coming in!
160408, 0300 PDT Update… Summarized also on the map below.
Rainfall totals for some Southern California and Arizona locations to get rain the last 30 hours are featured below in blue.
A gale is pushing into an area just offshore of SoCal and Baja. It is forecast to create a new storm for Saturday, 160409, forecast to move in on Southern and Baja California and Arizona.
The Pirate Fire (San Bernardino County Fire Incident) broke out yesterday, near Pirate Cove Resort in Needles, CA. The campground in Park Moabi Regional Park was evacuated along with some residences. It quickly spread to 1400 acres. Conditions there tonight are breezy (bad for fighting fire) but with light rain in the area (great for fighting fire).
A heat wave set record temperatures in Oregon and Washington yesterday. Normal cool and rainy locales like Vancouver, WA and Salem, OR hit 87°F, and Portland, OR hit 85°F, beating previous standing records, while Eugene, OR tied a standing record with 80°F. Other locations in Oregon also recorded new record maximum daily temperatures.
160408, 1400 PDT Update… Summarized on the map below. New color scheme – trying to make it easier to read.
I worked on this update for 3 hours, had to keep updating all the amounts! Got it looking nicer
The storm moved north and and went off the edge top as I worked on it
Storm 65 comes in tomorrow (??)
Saturday, 160409 at 0425 PDT
It is dumping tonight on the San Joaquin Valley! I could barely keep up. New storm totals as of early morning. Right now, the storm dies out after Concord, so this is the affected area so far.
Sunday, 160410 at 0630 PDT
Storm 64 is finally losing steam. Slowly. Spectacular rainfall amounts during the day yesterday the Great Basin. Soaking rain in the SoCal and Baja. Meanwhile to our north, a record warm April.