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Monday, September 28, 2009
Here comes the roller coaster
9/28/09 nooner
Winds are starting to pick up around North Lake Tahoe and temps are a bit cooler than the last week. Forecast is on track for the strong cold front to blow through the region tonight and tomorrow. See my previous post for a longer discussion.
As for today's update, fire weather concerns seem to be topping the list as this cold front comes through. The bulk of precipitation will stay North of the Oregon boarder. So Tahoe will see the bottom fall out of the temperatures and a whole lot of wind. A stray snow shower is possible through Tuesday night.
Winds will calm down by Wednesday and the sun will return, but temps will struggle to hit 50F. For Thursday and Friday temperatures will rebound nicely into the 60s, but morning lows will still be chilly in the 20s.
So looking forward, another cold front will affect the region Saturday/Sunday and could possibly set up low pressure over the Sierra for a good part of next week. This would allow for vort maxes to rotate around the low and bring showers to the Sierra. The GFS seems to show the high pressure retrograding West to about 150W 40N, which is prime location for weather in the Sierra. One question that still remains unanswered is the path of the cold front/low down the coast. Today's model runs show the path more over land than the Pacific. We will have to wait and see how this all pans out. The PacNW could see a few good shots of energy come onshore next week. Time will tell. Enjoy the wind, go fly a kite.
PWG
-------------------------------------------------------------------------------------------------
Current NWS Lake Tahoe Forecast
Lake Tahoe Backcountry Forecast
Lake Tahoe Recreational Forecast
Wind Chill Chart
Forecast Links:
National Weather Service Reno
National Weather Service Sacramento
NWS Reno Discussion
NWS Sacramento Discussion
Radar:
Intellicast Reno
Intellicast San Francisco
PacNW
PacSW
Satellite Imagery:
4km IR Loop
16km IR Loop
Central California 1km Visible
GOES-W 12hr WV
GOES NA 24hr WV
Precipitable Water Loop
Past Week's Estimated Precipitation Totals
Forecasting Tools:
Day 1 QPF
Day 2 QPF
Day 3 QPF
Day 4-5 QPF
5 Day Total QPF
California Nevada River Forecast Center
300mb Jetstream Loop
NCEP & HPC Loops Page
Pennsylvania State University Electronic Map Wall
CPC 6-10 Day Outlook
CPC 8-14 Day Outlook
Remote Data:
NWS Reno Local Mountain Remote Data
NWS Surface Observations
Tahoe City
NASA/JPL-UCD Buoys
Truckee Airport
Central Sierra Snow Lab
Sugar Bowl
Squaw Valley GC
Ward Creek
Rubicon
Sonora Pass
Virginia Lakes
Mammoth Mountain Main Lodge
Mammoth Mountain Summit
Reno Airport
Snow Data:
Sierra Avalanche Center
Sierra Avalanche Center Snowpit Profiles and Field Observations
Snowpit Profile Key
Eastern Sierra Avalanche Center
Avalanche.org
California Department of Water Resources
California Snotel Sites
Snotel Narrative
NOAA NOHRSC Interactive Snow Information
NWS Snowpack Analysis
Donner Summit Snowfall History
Brought to you by http://www.porterstahoe.com/
Winds are starting to pick up around North Lake Tahoe and temps are a bit cooler than the last week. Forecast is on track for the strong cold front to blow through the region tonight and tomorrow. See my previous post for a longer discussion.
As for today's update, fire weather concerns seem to be topping the list as this cold front comes through. The bulk of precipitation will stay North of the Oregon boarder. So Tahoe will see the bottom fall out of the temperatures and a whole lot of wind. A stray snow shower is possible through Tuesday night.
Winds will calm down by Wednesday and the sun will return, but temps will struggle to hit 50F. For Thursday and Friday temperatures will rebound nicely into the 60s, but morning lows will still be chilly in the 20s.
So looking forward, another cold front will affect the region Saturday/Sunday and could possibly set up low pressure over the Sierra for a good part of next week. This would allow for vort maxes to rotate around the low and bring showers to the Sierra. The GFS seems to show the high pressure retrograding West to about 150W 40N, which is prime location for weather in the Sierra. One question that still remains unanswered is the path of the cold front/low down the coast. Today's model runs show the path more over land than the Pacific. We will have to wait and see how this all pans out. The PacNW could see a few good shots of energy come onshore next week. Time will tell. Enjoy the wind, go fly a kite.
PWG
-------------------------------------------------------------------------------------------------
Current NWS Lake Tahoe Forecast
Lake Tahoe Backcountry Forecast
Lake Tahoe Recreational Forecast
Wind Chill Chart
Forecast Links:
National Weather Service Reno
National Weather Service Sacramento
NWS Reno Discussion
NWS Sacramento Discussion
Radar:
Intellicast Reno
Intellicast San Francisco
PacNW
PacSW
Satellite Imagery:
4km IR Loop
16km IR Loop
Central California 1km Visible
GOES-W 12hr WV
GOES NA 24hr WV
Precipitable Water Loop
Past Week's Estimated Precipitation Totals
Forecasting Tools:
Day 1 QPF
Day 2 QPF
Day 3 QPF
Day 4-5 QPF
5 Day Total QPF
California Nevada River Forecast Center
300mb Jetstream Loop
NCEP & HPC Loops Page
Pennsylvania State University Electronic Map Wall
CPC 6-10 Day Outlook
CPC 8-14 Day Outlook
Remote Data:
NWS Reno Local Mountain Remote Data
NWS Surface Observations
Tahoe City
NASA/JPL-UCD Buoys
Truckee Airport
Central Sierra Snow Lab
Sugar Bowl
Squaw Valley GC
Ward Creek
Rubicon
Sonora Pass
Virginia Lakes
Mammoth Mountain Main Lodge
Mammoth Mountain Summit
Reno Airport
Snow Data:
Sierra Avalanche Center
Sierra Avalanche Center Snowpit Profiles and Field Observations
Snowpit Profile Key
Eastern Sierra Avalanche Center
Avalanche.org
California Department of Water Resources
California Snotel Sites
Snotel Narrative
NOAA NOHRSC Interactive Snow Information
NWS Snowpack Analysis
Donner Summit Snowfall History
Brought to you by http://www.porterstahoe.com/
// posted by PortersWeatherGuy @ 12:04 PM
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