Posted on 12/20/2010 12:30:37 PM PST by Ernest_at_the_Beach
..FLASH FLOOD WATCH IN EFFECT FROM NOON PST TODAY THROUGH WEDNESDAY AFTERNOON...
THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A
* FLASH FLOOD WATCH FOR A PORTION OF SOUTHWEST CALIFORNIA... INCLUDING THE FOLLOWING AREAS...APPLE AND LUCERNE VALLEYS... COACHELLA VALLEY...ORANGE COUNTY COASTAL AREAS...RIVERSIDE COUNTY MOUNTAINS...SAN BERNARDINO COUNTY MOUNTAINS...SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE... SAN DIEGO COUNTY COASTAL AREAS...SAN DIEGO COUNTY DESERTS... SAN DIEGO COUNTY MOUNTAINS...SAN DIEGO COUNTY VALLEYS AND SANTA ANA MOUNTAINS AND FOOTHILLS.
* A LARGE PACIFIC PLUME OF MOISTURE AHEAD OF AN ADVANCING TROUGH OF LOW PRESSURE IS EXPECTED TO BRING HEAVY RAINS AND THE POTENTIAL FOR AREAS OF SERIOUS FLOODING...
* FROM NOON PST TODAY THROUGH WEDNESDAY AFTERNOON
* RAINFALL RATES NEAR OR GREATER THAN ONE INCH PER HOUR ARE POSSIBLE AT TIMES...ESPECIALLY IN THE MOUNTAINS.
* EXCESSIVE RUNOFF MAY ALSO CAUSE FLOODING OF MOST STREAMS AND WASHES...AND ALONG LOW LYING AREAS ADJACENT TO MAJOR RIVERS.
* MUD AND DEBRIS FLOWS AREA ALSO POSSIBLE...ESPECIALLY BELOW STEEP TERRAIN AND AREAS WITH LITTLE TO NO VEGETATION.
* RUNOFF COMING OUT OF THE MOUNTAINS WILL FILL AND COULD OVERFLOW STREAMS ON THE DESERT SLOPES OF THE MOUNTAINS...THUS THE DESERTS ARE INCLUDED IN THIS FLASH FLOOD WATCH.
* STRONG THUNDERSTORMS COULD ACCOMPANY A COLD FRONT ON WEDNESDAY. WITH THE RAINFALL ALREADY RECEIVED...THIS ADDITIONAL SIGNIFICANT RAINFALL WILL CONTINUE THE THREAT OF MUD AND DEBRIS FLOWS... PARTICULARLY IN AND AROUND THE RECENT BURN AREAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED.
Same for most of So-Cal... but, we escaped the harder rain that went to mid and northern CA - thankfully.
BUT, here's a look at what is likely coming... (Unisis forecast) - the four panels (all in GMT - 'Universal, or 'Zulu' time) relate to 4PM PST today (upper left) - 4AM PST Tuesday morning (upper right) - 4PM Tuesday afternoon PST (lower left) - and Wednesday morning 4AM PST. The panels cover the entire US, and show lots of snow for parts of the Northeast (different time zones, of course.)
Thanks for the link!
This is a sight to behold!
http://goes.gsfc.nasa.gov/goescolor/goeseast/overview2/color_lrg/latestfull.jpg
Alright, who stole my lung x-rays!?
Tulare Lake is coming back, with a vengeance.
Beautiful downtown McFarland.
Of course! Even growing glaciers are caused by global warming! Human activity is soooo damaging to the earth! /s
NOT... LOL
Warm ‘n dry here in the house in SLOCO. Just don’t go outside.
I ~don't~ want to see MY lung xrays...
Raining like the dickens in Long Beach right now.
Forecast is for continual rain, heavy at times, through Wednesday night. Unbelievable.
Why do I think all these “weather warnings” for California are nothing more than a setup for declaring an “emergency” and justifying a request for zillions of dollars from Washington DC?
Yes.
See #9 for movie showing the pineapple express in action.
That’s one of the prettiest graphics I ever saw.
Downright mesmerizing.
Statement as of 1:08 PM PST on December 20, 2010
The National Weather Service in Oxnard has issued an
* Urban and Small Stream Flood Advisory for...
southern and central Los Angeles County in southwest
California... this includes the cities of... Tujunga...
Sunland... Sierra Madre... Lake View Terrace... La Crescenta... La
Canada/Flintridge... Monterey Park... downtown Los Angeles... Long
Beach... Diamond Bar... Acton...
* until 400 PM PST
* at 100 PM PST... rain gauges and Doppler radar indicated an area of
moderate to locally heavy rainfall over much of Los Angeles
County. Rainfall rates around one quarter of an inch per hour are
expected to continue into at least through the afternoon... with up
to around one half of an inch per hour likely in the mountains
and foothills... especially in the San Gabriel range. This area
covers recent burn areas... including the station burn area.
Minor mud and debris flows are possible with such
rainfall intensities... especially in and around the recent burn
areas. Ponding of low lying roadways should be expected.
I’m in Hawaii for a couple of months. 6” last night with 2-3” more coming this afternoon. The express is rocking.
Do you think the recruits at San Diego will get to play indoors?
Once the page is loaded, look on the left under Forecasts and click on NAM/Wrf Model. When the four panel picture pops up - click on it to see it enlarged.
I use that site to see what is coming across the Pacific - as the news media never shows it. On their main page when it first comes up (link at the top) - click on the words, Enh IR Satellite Image - a picture of the USA is shown (weather overlay) - then at the top middle you'll see REGION - click on GOES-W to see the Pacific Ocean, Hawaii, etc. Then click on Loop12 - to see the last 12 hours. Watching that will give you a very good idea of 'what's coming!!'
Thank you very much. Excellent.
It all heads east...no problemo.
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