California Flood Forecast Update 1:45pm PDT

By -
Power Outages as of 2:07pm PDT
The high winds (a gust to 71 mph at the San Francisco International Airport) are causing power failures and major flight delays. As of this moment, the flight delays 2.6 hours. 

Addition at 2:38pm.

Flood Forecast for Major Rivers
The red squares are where "moderate" flooding is expected on major rivers. If you live anywhere near the red or orange squares, you can go here to receive the detailed flood forecast. 


Northern California Precipitation
Below is the 7-day precipitation ending at 5am this morning. 
Please note the 20" total (white) over the coastal range near Eureka. There are numerous areas in the Sierra where more than 15 inches have fallen. 

Here is the precipitation that has fallen since 5am.
Note: There are currently 2.5 hour flight days at San Francisco International Airport. 

Southern California Precipitation
Above the the precipitation for the past five days ending at 5am. 

Here is the precipitation that has fallen since. 
UPDATE: As of 3pm, the Los Angeles office of the National Weather Service says the storm has been "underperforming" so far. In the City of Los Angeles, amounts to this point have been between 0.25 and 0.33 inches. 


Current Radar
Below is the radar from 1:44pm PST.
The heaviest rains in the state are now in the Southland. In northern California, the rains are starting to taper off. 

5-Day Precipitation Forecast
Here is the forecast precipitation for the next five days ending at 5pm Sunday. 

Comments

Post a Comment

Popular posts from this blog

Hilary's Forecast Path Shifts West; Updated 9:20am PDT

By -
Image
The forecast path of the center of Hilary has shifted a bit to the west. This increases the threat to the Southland, especially in terms of flooding.  Rainfall Note the heavy rains are forecast for Los Angeles County. Serious flash flooding may result. Because the forecast path has shifted to the west, that increases the threat of serious flooding in Los Angeles County north into Yosemite and the southern Sierra. It lessens the threat in Utah and western Arizona. While the threat of widespread flooding in Utah and Arizona lessens, note that some thunderstorms with localized heavy rain show up on the map.  In Nevada, the more western path increases the risk of serious flooding around Mt Charleston and into the central part of the state.  Here is the updated  (9am PDT) flash flood risk map. Wind There are already about 40,000 people without power in California, mostly in the center of the state.  The maps above are the peak gusts forecasted with the storm. The highest winds, in general,
Read more

Dangerous Travel Conditions - People Reportedly Stranded

By -
Image
-- Note, more current info available. Scroll up. --- Updated Information as of 8am PDT You are risking your life if you attempt to travel through the purple area.  While the rain has not begun in coastal California, I would urge you to use this time to make any preparations. Power outages have occurred already in southeast California. Here is the latest radar as of 7:55am PDT. As of 6:40am PDT , the radar indicates moderate to heavy rain falling over desert areas of Southern California and far western Arizona (click to enlarge).  Rainfall amounts for the 24 hours ending at 7am PDT show more than two inches have already fallen. There are reports from reliable sources that roads are already washed out and that people are stranded in isolated parts of the desert.  Below is a high-resolution computer model's rainfall forecast from 5am PDT to 11pm PDT Sunday. More than a foot of additional rain is forecast to fall. This will lead to catastrophic flooding.  Here is a map of current watc
Read more

Update on Tornado and Wind Potential; 12 Noon PDT

By -
Image
There was at least one tornado and at least one funnel cloud yesterday.  --- original forecast --- Hilary (the swirly symbol) continues to move NNW paralleling the coast of Baja California, Mexico. The area outlined in red has a significant risk of tornadoe s the rest of the afternoon.  Below is a list of peak wind gusts so far.  Peak winds may increase farther north as the afternoon progresses.  Addition at 12 noon PDT: Sure enough, winds have increased.  Note: If you are in the San Diego area, I recommend not  traveling east on I-8. Heavy rains may cause flash flooding that will involve the highway. 
Read more