Author Topic: Some Weather and Fire Warnings for the Western US - 2017  (Read 1568 times)

Yowbarb

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Some Weather and Fire Warnings for the Western US - 2017
« on: February 17, 2017, 08:20:12 AM »
I will occasionally be posting here some weather warnings or fire warnings for the western US.
...
http://www.wrh.noaa.gov/lox/

http://www.wrh.noaa.gov/total_forecast/getprod.php?afos=xxxafdlox&wfo=lox&version=0&font=120&print=yes

Yowbarb

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #1 on: February 17, 2017, 09:53:59 AM »
NWS   http://www.weather.gov/

http://www.wrh.noaa.gov/lox/  Dangerous Storm Today

http://www.wrh.noaa.gov/total_forecast/getprod.php?afos=xxxafdlox&wfo=lox&version=0&font=120&print=yes

FXUS66 KLOX 171241
  AFDLOX
   
  AREA FORECAST DISCUSSION
  NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA 
  441 AM PST Fri Feb 17 2017
   
  New Aviation and Marine Discussions
   
  .SYNOPSIS...
  A strong trough of low pressure off the Central California Coast 
  will move over the region through Saturday bringing gusty winds
  and rain and mountain snow. Rain, heavy at times will move over
  the area today as the storm system`s cold front move over the 
  region. Weak ridging aloft will establish on Sunday, then a series
  of trough of low pressures will move ashore through midweek next
  week.
   
  &&
   
  .SHORT TERM...(TDY-SUN)
   
  The latest infrared imagery shows a strong upper-level trough of
  low pressure currently centered near 38N and 133W, or about 880 
  miles west-northwest of Los Angeles. A diffluent flow pattern is 
  seen easily developing off the California Coast early this morning
  as the storm is starting to intensify. The surface low 
  circulation sits just ahead of the upper-level trough center. With
  diffluent flow aloft and the strong lifting taking place, the 
  surface low will deepen and intensify as it moves towards the San 
  Francisco Bay through this evening. 
   
  Isolated thunderstorms remain a threat areawide as deep lift 
  through the atmosphere should steepen lapse rates. Rainfall rates 
  are starting to approach a quarter-inch per hour this morning as 
  the diffluent area approaches Point Conception. Rainfall rates 
  should pickup through this morning as the instability and deep
  lift punches in. Satellite passes offshore indicate 0.50 inch per
  hour rainfall rates occurring offshore and these rates should 
  intensify by at least a factor of two as orographic lift comes 
  into play and the storm system interacts with the terrain. 
   
  A flash flood watch remains in effect from 7 am pst this morning 
  through Saturday morning for Santa Barbara, Ventura and Los 
  Angeles Counties. A tightening surface gradient will develop 
  through sunrise as the surface low center nudges closer to the 
  area. Strong southerly flow will bring gusty and potentially 
  damaging winds to all areas of Southwest California. Wind 
  headlines remain mostly intact, except a few tweaks were made to 
  start times. Southerly winds will interact with the topography to
  enhance lift through today as the flow upslopes into the
  Transverse Mountains. QPF values remain between two and six 
  inches for coastal and valley areas with up to five to ten inches
  across the foothills and mountains. South-facing slopes will see
  the highest precipitation totals across the area.
   
  Snow levels between 7500 to 8000 feet this morning will gradually
  fall through Saturday morning to between 5000 and 5500 feet. A
  winter storm warning remains in effect from 7 am pst this morning
  through Saturday morning. Snow amounts will really start to add up
  after this afternoon as colder air aloft punches in. One foot to
  two feet of snow is possible above 8000 feet with this storm
  system. Local amounts up to three feet cannot be ruled out on
  favored high mountain peaks. Snow amounts between 6000 and 7500
  feet will likely range to between six and twelve inches. 
   
  The cold front with the system will move west to east over the 
  region between late this morning through this evening. The front
  will exit Los Angeles County just after sunset. A showery weather
  pattern will linger into Saturday night and the potential for
  isolated will linger as the 500 mb cold pocket moves over the
  area. Showers with isolated thunderstorms remain in the forecast
  for some areas into Saturday evening. 
   
  Weak ridging should build in for Sunday and the area should dry
  out.
   
  .LONG TERM...(MON-THU)
   
  Another system will approach the Central Coast between Sunday
  night and Monday, then drift southward into Tuesday while losing 
  its punch. The best chance of rainfall looks to be for the Central
  Coast where the best mositure is.
   
  Models are still waffling for the pattern for mid-to-late week
  next week, but model trends suggest troughing along the Central
  California Coast between Tuesday night and Wednesday. With most
  time and effort paid to the short-term, forecast remains
  consistent for now.
   
  &&

Yowbarb

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #2 on: February 17, 2017, 11:15:20 PM »
http://www.nydailynews.com/news/national/dead-storm-lashes-southern-california-article-1.2975967

Two dead as powerful rainstorm lashes California

LOS ANGELES — A powerful Pacific storm blew into Southern and Central California on Friday with wind-driven heavy rains that downed power lines and electrocuted a man, killed a motorist in a submerged car and disrupted hundreds of flights at airports.

With the storm feeding on an atmospheric river of moisture stretching far out into the Pacific, precautionary evacuations of homes in some neighborhoods were requested due to the potential for mudslides and debris flows.

More than 300 arriving and departing flights were delayed or canceled at Los Angeles International Airport.

In the Sherman Oaks area of Los Angeles, a falling tree downed power lines and hit a car. A 55-year-old man was electrocuted and pronounced dead at a hospital, police and fire officials said.

Later in the same neighborhood, a sinkhole swallowed two cars, the second on live TV as viewers watched it teeter on the edge before plunging in. Firefighters rescued one person from the first car, and the driver got out of the second before it fell. No one was injured.

Winds gusting to 70 mph or more lashed parts of the region. Heavy rains turned creeks and rivers into brown torrents and released slews of mud from hillsides burned barren by wildfires. Several stretches of freeways and highways were closed by flooding.

"It's crazy," said Robin Johnson, an academic adviser at the University of California, Santa Barbara. "It's just pouring down rain. The wind is just going nuts."

"At one point the wind was so strong I'm surprised it didn't blow my windows out," retiree Phoenix Hocking said in a Facebook message from Carpinteria. "I now have a pond in my patio. And my dog is starting to grow flippers so he can go out and do his business."

In the desert town of Victorville, several cars were washed down a flooded street. A helicopter rescued one person from the roof of a car but another motorist was found dead in a submerged vehicle, San Bernardino County fire spokesman Eric Sherwin said.

Elsewhere in the county, a 20-mile stretch of State Route 138 in the West Cajon Valley was closed at the scene of a summer wildfire.

Mud sloshed over concrete rail barriers and about two dozen vehicles, including big-rigs and a school bus, were either mired in mud or became unable to turn around on the closed road and some were abandoned, Sherwin said.

Two people in a car were rescued and four students on the bus were removed and taken to a school office, he said.

Another road in the area was covered with 2 feet of mud.

In LA's Sun Valley, 10 cars were trapped in swift-moving water on a roadway and 15 people had to be rescued, the Fire Department reported.

Using ropes and inflatable boats, firefighters rescued seven people and two dogs from the Sepulveda basin, a recreation and flood-control area along the Los Angeles River. One person was taken to a hospital with a non-life threatening injury.

The storm took aim at Southern California but also spread precipitation north into the San Joaquin Valley and up to San Francisco. It was not expected to bring significant rain in the far north where damage to spillways of the Lake Oroville dam forced evacuation of 188,000 people last weekend.

The National Weather Service said it could end up being the strongest storm to hit Southern California since January 1995.

Rain and wind wiped out play in golf's Genesis Open at the Riviera Country Club in Los Angeles, where a eucalyptus tree cracked.

Hundreds of trees and dozens of power lines had toppled in the Los Angeles area and at one point more than 60,000 city power customers were without electricity.

A 75-foot tree fell onto an apartment building near the University of California, Los Angeles, narrowly missing someone who was in bed, fire officials said. Four of the six apartments have been declared unsafe to enter, prompting the evacuation of 16 college students.

"I was just sitting in bed trying to enjoy a Friday morning of no class," one resident told KCAL-TV. "I had a giant, like, thunder popping sound and then next thing I knew a branch was coming through the ceiling."

Her leg was scratched by debris and "I was covered in sawdust," she said.

Her thought now was, "Where am I going to live?"

Another tree smashed a carport and vehicles in the Santa Barbara suburb of Goleta.

By evening, Ventura County and northern Los Angeles County had seen 24-hour rain totals of up to 7 ½ inches, with the San Marcos mountain pass in Santa Barbara County receiving nearly 8 ½ inches.

Farther south, downtown Los Angeles had received about 1 ½ inches of rain while some areas saw up to 4 inches.

The storm system was moving "very slowly" eastward and Los Angeles County was expected to see more rain through Saturday, said Joe Sirard, a meteorologist with the National Weather Service in Oxnard.

The city of Duarte, in the foothills of the San Gabriel Mountains east of Los Angeles, ordered evacuation of 180 homes below a burn scar. Up the coast, evacuations were urged for parts of Camarillo Springs in Ventura County and around an 11½-square-mile burn scar west of Santa Barbara.

In Northern California, officials monitoring the stricken Oroville Dam on the Feather River said they were confident the reservoir would handle any runoff from expected storms because ongoing releases have been lowering the lake's level since its spillways were damaged last week.


Yowbarb

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #3 on: February 17, 2017, 11:24:37 PM »
Huntington Pier

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #4 on: February 19, 2017, 12:25:44 AM »
http://www.weather.gov/

Series of storm systems to bring additional heavy rain, flooding, and mountain snow to California

A series of storm systems will bring a continued threat for heavy rainfall, flooding, very heavy mountain snowfall, and strong winds to California into Tuesday. The threat for flooding, mudslides, and dangerous travel is expected to continue. Read More >

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #5 on: February 20, 2017, 12:18:09 PM »
Article and video, this page:
...

https://weather.com/forecast/regional/news/california-record-wet-water-year-forecast-feb2017

Another Round of Dangerous Flooding, Landslides and Damaging Winds Underway in California

Story Highlights
A new powerful storm will continue to lash California through early Tuesday.

Flooding, rockslides, mudslides and damagings winds are likely impacts.

Flood watches and warnings remain in effect for parts of California.

Heavy snow will pile up in the Sierra Nevada.


Another potent atmospheric river event has set up in northern California, once again raising the risk of dangerous flooding, landslides and damaging winds in this storm-weary region. Several additional feet of snow will also pile up in the higher terrain of the Sierra Nevada.

A steady stream of moderate to heavy rain continues to focus on locations from the Bay Area into the Sacramento Valley and the northern Sierra. This is the area of greatest concern through this afternoon and evening.

More than 5 inches of rain has fallen in the 24 hours ending 6 a.m. PST in Sonoma County at Leghorn Stream. Big Sur in Monterey County picked up more than 3 inches of rain in that time. Some western slope areas of the northern Sierra have seen 1-3 inches of rain so far.

About a half dozen debris flows have been reported so far in parts of Sonoma, Monterey, Santa Cruz and Marin Counties. Road flooding has also been observed on some roads in this general region.
...................................................................................................
[More in next post]

Yowbarb

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #6 on: February 20, 2017, 03:38:39 PM »
More on the Regional Forecast
...

https://weather.com/forecast/regional/news/california-record-wet-water-year-forecast-feb2017

The National Weather Service (NWS) in Sacramento says that flooding could occur in areas that haven't flooded in a long time. They added that the additional rain will put stress on levees, rivers and creeks in the region, and urged residents to be prepared for flooding and possible evacuations.

[more]

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #7 on: February 21, 2017, 02:33:08 AM »
Don Pedro Spillway Opens, First Time in 20 Years
For the first time in 20 years, the spillway gates of the Don Pedro Reservoir were opened as heavy rains hit northern California.

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #8 on: February 27, 2017, 12:40:08 AM »
http://www.weather.gov/

Widespread Precipitation for the Western U.S. While Rain Returns to the Gulf Coast Region

Rain and mountain snow showers will continue across the Western U.S. for the next couple days. Meanwhile, moisture will increase over Texas and the Deep South where locally heavy rainfall and minor flooding will be possible through midweek. Also, high fire danger will continue in the southern High Plains on Monday.

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Re: Some Weather and Fire Warnings for the Western US - 2017
« Reply #9 on: June 19, 2017, 12:53:26 AM »
In the western US today (Monday) some heat records could be broken... huge areas with Excessive heat Warnings and Advisories.
This is an excerpt from the NWS:
...

http://www.weather.gov/    NWS US Map

http://www.wpc.ncep.noaa.gov/discussions/hpcdiscussions.php?disc=pmdspd

The western U.S. will experience a period of above normal temperatures
with portions of the Southwest and California testing record high
temperatures. A strong ridge of high pressure will take hold in the upper
atmosphere across the Southwest U.S. allowing for surface temperatures to
soar well into the triple digits for the central valley of California and
much of the desert Southwest. High temperatures could reach into the 110s
for these areas with a few spots pushing 120.The heat will be dangerous
and a large portion of the region is under heat advisories and excessive
heat warnings.