Over on Oregon Live there is an article about the return of winter storms to the North West.
The winter of our warm content will hit a small speed bump this week, as a series of storms sweep in off the Pacific, bringing rain to the valleys and much needed snow to the Cascades.
During this most typical of El Niño winters, every little bit helps when it comes to precipitation and especially building the snowpack before the gradual summer melt-off. Still, don't expect the kind of lashing rains and three foot snow dumps we should have been seeing in January and the first ten days of February.
El Niño -- the warming of the equatorial Pacific Ocean surface off the coast of South America that occurs about every two to six years -- tends to spell drier and warmer winters in the Pacific Northwest, wetter storms in the Southwest and colder winters in the South. "
As Februarys go, it's not going to be that bad," said forecaster Chris Collins of the National Weather Service in Portland. "We're going to see a system come through about every 24 hours for the next several days, but the jet stream is not aimed at us so the brunt of these storms will brush us and head to the north into Washington."
Check out the full explanation at http://www.oregonlive.com/news/index.ssf/2010/02/winter_returns_sort_of_with_a.html
Showing posts with label Oregon Cascades. Show all posts
Showing posts with label Oregon Cascades. Show all posts
Thursday, February 11, 2010
Thursday, January 7, 2010
Freezing Rain Advisory
ODOT/Willamette Valley, No. Coast: The National Weather Service has issued a Freezing Rain Advisory for the Northern Oregon Cascades, including Santiam Pass, from 10 p.m. Thursday until 4 a.m. Friday.
Motorists should carry chains and be prepared for extreme winter conditions if traveling over mountain passes or on secondary roads leading to the mountain passes, including eastern Marion and Linn counties.Know Before You Go by checking www.TripCheck.com or by calling 511 for highway conditions.Learn about winter driving tips by visiting ODOT's website: http://www.oregon.gov/ODOT/COMM/winterdriving.shtml
For more information, contact:TripCheck.com, 5-1-1, 800-977-6368
Motorists should carry chains and be prepared for extreme winter conditions if traveling over mountain passes or on secondary roads leading to the mountain passes, including eastern Marion and Linn counties.Know Before You Go by checking www.TripCheck.com or by calling 511 for highway conditions.Learn about winter driving tips by visiting ODOT's website: http://www.oregon.gov/ODOT/COMM/winterdriving.shtml
For more information, contact:TripCheck.com, 5-1-1, 800-977-6368
Tuesday, November 24, 2009
Not Stormy for Thanksgiving Travels
Tuesday, 11:30 A.M. http://www.accuweather.com/mt-news-blogs.asp?partner=accuweather&blog=Lundberg&pgurl=/mtweb/content/Lundberg/archives/2009/11/not_stormy_for.asp
Anyway, the main message for today and tomorrow is one of no major storms coast to coast, and border to border. Oh, there will be some places where the travel will be a little dicey tomorrow, but in terms of large-scale storms that will have a significant disruptive impact on travelers, there won't be any.
Let's look at the problem spots one by one, starting first in the Northwest. A storm heading across the northeast Pacific will head for northern British Columbia tomorrow, dragging a cold front, weak at that, toward western Washington and northwest Oregon in the afternoon. The result will be some rain, with some locations getting an inch or two of rain, mainly over the Olympics. There won't be the wind with this storm that we've seen in recent events, either. Snow levels will be high, so I suspect getting over the passes shouldn't be too difficult tomorrow afternoon. Once east of the Cascades, it will be dry, and very little moisture will even reach northwest Oregon until Thanksgiving afternoon when a second system will break off from the main flow of the jet stream and take direct aim at the state.
Another area of potentially bad weather will be the Midwest tomorrow, as a slow-moving storm coming out of southern Iowa this afternoon will send some rain out of Wisconsin into Michigan, though the rain won't be all that heavy. If there's any real travel problems, it would be in the colder air on the back side of the storm. A second upper level disturbance digging southeastward from Montana this afternoon and tonight will invigorate this whole storm and cool the column to the point where snow can make it to the ground across parts of western Wisconsin, eastern Minnesota, northeastern Iowa, and northwest Illinois, especially tomorrow afternoon and early tomorrow night. Even here, though, it would be a sloppy, wet snow that at best would amount to a few inches. In most cases, it would be a coating to an inch or two, enough to cause some headaches and make for great snowmen. Otherwise, it's not going to affect a very big area.
Farther downstream, the weather from the eastern Lakes and across the Appalachians into New England and the mid-Atlantic states will just be gloomy, as in little to no sun. The low level moisture that has invaded the region will have no escape hatch without much wind and a fresh air mass to replace it. Look for some drizzle and fog to be your biggest weather adversary in these areas, with a little rain in some areas thrown in for good measure. Bleak and boring, but it could be much, much worse.
The final area will be Florida, especially the central and southern counties of the state. There's a ton of activity right now bursting across the Gulf of Mexico, and an upper level disturbance will help drive this all across the sunshine state tonight and tomorrow in conjunction with a developing surface storm. Some of this will also graze the coast of Georgia and the coastal Carolinas.
Aside from that, the weather will be benign across most of the country, and that's good for those who are planning trips of any distance, especially from the nations' major airports.
This Gulf storm development will not be done once crossing Florida tomorrow afternoon. As it develops further Wednesday night and Thursday off the Southeast coast, it will threaten parts of the Northeast with a more significant precipitation event sometime later on Thanksgiving into Friday, though I suspect that most will be disappointed at the outcome.
More upstream energy digging in from Midwest into the Great Lakes Wednesday and Thursday will help to deepen the storm as it heads by Cape Cod and heads for the Gulf of Maine. In the absence of any real overrunning surface, it will be tough to throw Atlantic moisture back over a non-existent cold dome over New England. Therefore, I'd have to believe most of New England will be too warm on the front side of this storm to get anything other than rain. About the only way it can snow as I see it is as the cold air collapses into the back side of the storm that you get fitful bursts of precipitation across western New England into the Adirondacks that could easily change to wet snow late Thursday night and Friday morning before going away in the afternoon.
There will be some lake effect snow around the Lakes Thursday into Friday, even though the air really won't be arctic in nature. It'll simply be cold enough so that some of the preferred areas pick up several inches of snow. And in most cases, this will be the first meaningful snow event of the season around the lakes!
A quick check of the longer range forecast suggests this cold that comes through the pattern with this developing trough will come and go. In other words, the moderating process will begin on the Plains Friday, spread across the Mississippi into the Midwest Saturday, and then filter into the Northeast in reduced fashion for Sunday and the early part of next week.
Still another storm will come out of the southern branch of the jet to open up next week, but it really looks as if the upper level trough to accompany this will be a little farther west, thanks in large part to blocking downstream that isn't over Greenland, but rather WEST of Greenland. In turn, that is likely to turn that storm toward the Great Lakes over time, and keep any snow associated with it to the north and west of the storm track, none of which should impact the northern Rockies and northern Plains, or maybe even much of the Midwest.
The cold that follows this trough will be more destined for the southern tier of states, not the Northeast, where it just may stay warmer than normal through most of next week. After that, THEN maybe some arctic air will truly get involved in the picture, but in deference to the NAEFS and the European Weekly Climate Forecasts from last Thursday night, my hunch is this will be centered on the Rockies and Plains, not the East, at least initially. Now, if the block were farther east over Greenland, then the cold might be centered along or east of the Mississippi, but that doesn't appear to be the case. More on that line of thinking tomorrow. For now, my son is already waiting - time to run!
Anyway, the main message for today and tomorrow is one of no major storms coast to coast, and border to border. Oh, there will be some places where the travel will be a little dicey tomorrow, but in terms of large-scale storms that will have a significant disruptive impact on travelers, there won't be any.
Let's look at the problem spots one by one, starting first in the Northwest. A storm heading across the northeast Pacific will head for northern British Columbia tomorrow, dragging a cold front, weak at that, toward western Washington and northwest Oregon in the afternoon. The result will be some rain, with some locations getting an inch or two of rain, mainly over the Olympics. There won't be the wind with this storm that we've seen in recent events, either. Snow levels will be high, so I suspect getting over the passes shouldn't be too difficult tomorrow afternoon. Once east of the Cascades, it will be dry, and very little moisture will even reach northwest Oregon until Thanksgiving afternoon when a second system will break off from the main flow of the jet stream and take direct aim at the state.
Another area of potentially bad weather will be the Midwest tomorrow, as a slow-moving storm coming out of southern Iowa this afternoon will send some rain out of Wisconsin into Michigan, though the rain won't be all that heavy. If there's any real travel problems, it would be in the colder air on the back side of the storm. A second upper level disturbance digging southeastward from Montana this afternoon and tonight will invigorate this whole storm and cool the column to the point where snow can make it to the ground across parts of western Wisconsin, eastern Minnesota, northeastern Iowa, and northwest Illinois, especially tomorrow afternoon and early tomorrow night. Even here, though, it would be a sloppy, wet snow that at best would amount to a few inches. In most cases, it would be a coating to an inch or two, enough to cause some headaches and make for great snowmen. Otherwise, it's not going to affect a very big area.
Farther downstream, the weather from the eastern Lakes and across the Appalachians into New England and the mid-Atlantic states will just be gloomy, as in little to no sun. The low level moisture that has invaded the region will have no escape hatch without much wind and a fresh air mass to replace it. Look for some drizzle and fog to be your biggest weather adversary in these areas, with a little rain in some areas thrown in for good measure. Bleak and boring, but it could be much, much worse.
The final area will be Florida, especially the central and southern counties of the state. There's a ton of activity right now bursting across the Gulf of Mexico, and an upper level disturbance will help drive this all across the sunshine state tonight and tomorrow in conjunction with a developing surface storm. Some of this will also graze the coast of Georgia and the coastal Carolinas.
Aside from that, the weather will be benign across most of the country, and that's good for those who are planning trips of any distance, especially from the nations' major airports.
This Gulf storm development will not be done once crossing Florida tomorrow afternoon. As it develops further Wednesday night and Thursday off the Southeast coast, it will threaten parts of the Northeast with a more significant precipitation event sometime later on Thanksgiving into Friday, though I suspect that most will be disappointed at the outcome.
More upstream energy digging in from Midwest into the Great Lakes Wednesday and Thursday will help to deepen the storm as it heads by Cape Cod and heads for the Gulf of Maine. In the absence of any real overrunning surface, it will be tough to throw Atlantic moisture back over a non-existent cold dome over New England. Therefore, I'd have to believe most of New England will be too warm on the front side of this storm to get anything other than rain. About the only way it can snow as I see it is as the cold air collapses into the back side of the storm that you get fitful bursts of precipitation across western New England into the Adirondacks that could easily change to wet snow late Thursday night and Friday morning before going away in the afternoon.
There will be some lake effect snow around the Lakes Thursday into Friday, even though the air really won't be arctic in nature. It'll simply be cold enough so that some of the preferred areas pick up several inches of snow. And in most cases, this will be the first meaningful snow event of the season around the lakes!
A quick check of the longer range forecast suggests this cold that comes through the pattern with this developing trough will come and go. In other words, the moderating process will begin on the Plains Friday, spread across the Mississippi into the Midwest Saturday, and then filter into the Northeast in reduced fashion for Sunday and the early part of next week.
Still another storm will come out of the southern branch of the jet to open up next week, but it really looks as if the upper level trough to accompany this will be a little farther west, thanks in large part to blocking downstream that isn't over Greenland, but rather WEST of Greenland. In turn, that is likely to turn that storm toward the Great Lakes over time, and keep any snow associated with it to the north and west of the storm track, none of which should impact the northern Rockies and northern Plains, or maybe even much of the Midwest.
The cold that follows this trough will be more destined for the southern tier of states, not the Northeast, where it just may stay warmer than normal through most of next week. After that, THEN maybe some arctic air will truly get involved in the picture, but in deference to the NAEFS and the European Weekly Climate Forecasts from last Thursday night, my hunch is this will be centered on the Rockies and Plains, not the East, at least initially. Now, if the block were farther east over Greenland, then the cold might be centered along or east of the Mississippi, but that doesn't appear to be the case. More on that line of thinking tomorrow. For now, my son is already waiting - time to run!
Friday, November 20, 2009
Significant National Weather
A strong cold front will move into the coastal areas of the Pacific Northwest today. The Oregon headlands will see wind gusts up to 80mph while the ridge tops of the Sierras will see gusts up to 125 mph. Rain is expected from Washington to the northern San Joaquin Valley of Central California. An additional 6 to 8 inches of rain is forecast in the Olympic Peninsula while the rest of western Washington through the San Francisco Bay area may see rain totals of an inch or more.
The Cascades and the northern half of the Sierra Nevada will see heavy snow and gusty
winds; the strong winds will reach as far east as Idaho, Nevada and Utah. The storm will weaken on Saturday as it moves eastward through the Great Basin to the northern and central Rockies and mountain snow and gusty winds are expected. A second cold front will arrive Saturday night into Sunday, bringing more rain and snow from Washington, Oregon, and northern California to western sections of Montana and Wyoming.
A third cold front will move into Washington and Oregon early next week.
The Cascades and the northern half of the Sierra Nevada will see heavy snow and gusty
winds; the strong winds will reach as far east as Idaho, Nevada and Utah. The storm will weaken on Saturday as it moves eastward through the Great Basin to the northern and central Rockies and mountain snow and gusty winds are expected. A second cold front will arrive Saturday night into Sunday, bringing more rain and snow from Washington, Oregon, and northern California to western sections of Montana and Wyoming.
A third cold front will move into Washington and Oregon early next week.
Thursday, November 5, 2009
Winter Weather Advisory
..WINTER WEATHER ADVISORY FOR SNOW IN EFFECT FROM 10 PM THIS
EVENING TO 4 AM PST SUNDAY FOR THE CASCADES OF SOUTH
WASHINGTON...NORTH OREGON AND LANE COUNTY...
A STRONG PACIFIC FRONTAL SYSTEM ALONG THE COAST WILL TRACK INLAND THIS
EVENING BRINGING WET AND WINDY CONDITIONS TO THE CASCADES FOLLOWED
BY RAPIDLY FALLING SNOW LEVELS. AS PRECIPITATION RATES INCREASE
THIS EVENING SNOW LEVELS INITIALLY RANGING BETWEEN 6000 AND 7000 FT
WILL FALL TO 3500 FT NORTH AND 4500 FT SOUTH THROUGH FRIDAY
MORNING. 6 TO 10 INCHES OF NEW SNOW ARE EXPECTED TO FALL OVERNIGHT.
STRONG ONSHORE FLOW COMBINED WITH COLD UNSTABLE AIR ALOFT WILL
ENHANCE POST FRONTAL SNOW SHOWERS FRIDAY THROUGH SATURDAY NIGHT
WITH SNOW LEVELS BETWEEN 3000 AND 4000 FT. SEVERAL SHORTWAVE
TROUGHS ROTATING INLAND OVER THE NEXT COUPLE OF DAYS WILL INCREASE
SNOW FALL RATES AT TIMES BUT ON AVERAGE SNOW FALL RATES ARE
EXPECTED TO RANGE BETWEEN 4 TO 8 INCHES OF SNOW PER 12 HOUR PERIOD
BRINGING STORM TOTALS OF 2 TO 3 FEET OF NEW SNOW THROUGH SATURDAY
NIGHT.
..HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING FOR THE
NORTH AND CENTRAL OREGON COAST...
A STRONG COLD FRONT IS MOVING TOWARDS THE COAST THIS AFTERNOON AND WILL
MOVE ONSHORE AROUND 9 PM THIS EVENING. AS THE FRONT APPROACHES...SOUTH
WINDS OF 30 TO 40 MPH WITH GUSTS UP TO 65 MPH WILL OCCUR.
AFTER THE FRONT MOVES ONSHORE TONIGHT...WINDS WILL DECREASE FROM THE NORTH
TO SOUTH.
A COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON.
A HIGH SURF ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST
SATURDAY.
LARGE SWELL GENERATED BY A STORM IN THE GULF OF ALASKA WILL BUILD TONIGHT
THROUGH FRIDAY AND CONTINUE THROUGH SATURDAY...BRINGING HIGH SURF
CONDITIONS TO THE COAST. THE LARGEST SEAS ARE EXPECTED TO ARRIVE FRIDAY
AFTERNOON. HAZARDS FROM HIGH SURF CONDITIONS ALONG THE SHORELINE WILL BE
ENHANCED DURING THE HIGH TIDES AROUND 3 TO 4 PM IN THE AFTERNOON FRIDAY
AND SATURDAY.
HIGH TIDE OF 10.3 FT AND AN ANOMALY OF AROUND 1 FOOT WILL BRING THE HIGH
TIDE LEVEL TO AROUND 11.1 FT THIS AFTERNOON. AT THIS LEVEL...MINOR
FLOODING IS EXPECTED IN AND NEAR THE TOWN OF RAYMOND.
TIDES WILL BE LOWER AT SUBSEQUENT HIGH TIDES. CONSULT LOCAL TIDE TABLES
FOR TIMES AND HEIGHTS OF TIDES IN YOUR AREA.
A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE
ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION.
EXERCISE EXTREME CAUTION ALONG BEACHES. UNPREDICTABLE AND DESTRUCTIVE
WAVES MAY WASH OVER BEACHES...JETTIES AND OTHER STRUCTURES WITH NO
WARNING. BEACH EROSION IS POSSIBLE. THIS IS NOT A TIME TO BE NEAR THE
WATER.
EVENING TO 4 AM PST SUNDAY FOR THE CASCADES OF SOUTH
WASHINGTON...NORTH OREGON AND LANE COUNTY...
A STRONG PACIFIC FRONTAL SYSTEM ALONG THE COAST WILL TRACK INLAND THIS
EVENING BRINGING WET AND WINDY CONDITIONS TO THE CASCADES FOLLOWED
BY RAPIDLY FALLING SNOW LEVELS. AS PRECIPITATION RATES INCREASE
THIS EVENING SNOW LEVELS INITIALLY RANGING BETWEEN 6000 AND 7000 FT
WILL FALL TO 3500 FT NORTH AND 4500 FT SOUTH THROUGH FRIDAY
MORNING. 6 TO 10 INCHES OF NEW SNOW ARE EXPECTED TO FALL OVERNIGHT.
STRONG ONSHORE FLOW COMBINED WITH COLD UNSTABLE AIR ALOFT WILL
ENHANCE POST FRONTAL SNOW SHOWERS FRIDAY THROUGH SATURDAY NIGHT
WITH SNOW LEVELS BETWEEN 3000 AND 4000 FT. SEVERAL SHORTWAVE
TROUGHS ROTATING INLAND OVER THE NEXT COUPLE OF DAYS WILL INCREASE
SNOW FALL RATES AT TIMES BUT ON AVERAGE SNOW FALL RATES ARE
EXPECTED TO RANGE BETWEEN 4 TO 8 INCHES OF SNOW PER 12 HOUR PERIOD
BRINGING STORM TOTALS OF 2 TO 3 FEET OF NEW SNOW THROUGH SATURDAY
NIGHT.
..HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING FOR THE
NORTH AND CENTRAL OREGON COAST...
A STRONG COLD FRONT IS MOVING TOWARDS THE COAST THIS AFTERNOON AND WILL
MOVE ONSHORE AROUND 9 PM THIS EVENING. AS THE FRONT APPROACHES...SOUTH
WINDS OF 30 TO 40 MPH WITH GUSTS UP TO 65 MPH WILL OCCUR.
AFTER THE FRONT MOVES ONSHORE TONIGHT...WINDS WILL DECREASE FROM THE NORTH
TO SOUTH.
A COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON.
A HIGH SURF ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST
SATURDAY.
LARGE SWELL GENERATED BY A STORM IN THE GULF OF ALASKA WILL BUILD TONIGHT
THROUGH FRIDAY AND CONTINUE THROUGH SATURDAY...BRINGING HIGH SURF
CONDITIONS TO THE COAST. THE LARGEST SEAS ARE EXPECTED TO ARRIVE FRIDAY
AFTERNOON. HAZARDS FROM HIGH SURF CONDITIONS ALONG THE SHORELINE WILL BE
ENHANCED DURING THE HIGH TIDES AROUND 3 TO 4 PM IN THE AFTERNOON FRIDAY
AND SATURDAY.
HIGH TIDE OF 10.3 FT AND AN ANOMALY OF AROUND 1 FOOT WILL BRING THE HIGH
TIDE LEVEL TO AROUND 11.1 FT THIS AFTERNOON. AT THIS LEVEL...MINOR
FLOODING IS EXPECTED IN AND NEAR THE TOWN OF RAYMOND.
TIDES WILL BE LOWER AT SUBSEQUENT HIGH TIDES. CONSULT LOCAL TIDE TABLES
FOR TIMES AND HEIGHTS OF TIDES IN YOUR AREA.
A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN THE
ADVISORY AREA...PRODUCING RIP CURRENTS AND LOCALIZED BEACH EROSION.
EXERCISE EXTREME CAUTION ALONG BEACHES. UNPREDICTABLE AND DESTRUCTIVE
WAVES MAY WASH OVER BEACHES...JETTIES AND OTHER STRUCTURES WITH NO
WARNING. BEACH EROSION IS POSSIBLE. THIS IS NOT A TIME TO BE NEAR THE
WATER.
Wednesday, November 4, 2009
More Weather news
NORTHERN OREGON CASCADES-CASCADES IN LANE COUNTY- SOUTH WASHINGTON CASCADES- INCLUDING THE CITIES OF...GOVERNMENT CAMP...DETROIT...
SANTIAM PASS...MCKENZIE BRIDGE...OAKRIDGE...WILLAMETTE PASS...
COLDWATER RIDGE VISITORS CENTER...MOUNT ST. HELENS
..SIGNIFICANT SNOWFALL OVER THE CASCADES IS EXPECTED FRIDAY AND SATURDAY...
A STRONG LOW PRESSURE SYSTEM WILL RAPIDLY STRENGTHEN INTO A POWERFUL STORM TODAY AND THURSDAY. WHILE THE CENTER OF THIS LOW PRESSURE SYSTEM IS EXPECTED TO REMAIN IN THE GULF OF ALASKA...IT WILL PUSH A STRONG COLD FRONT ONSHORE INTO THE PACIFIC NORTHWEST THURSDAY.
SNOW LEVELS WILL START OFF WELL ABOVE THE CASCADE PASSES EARLY THURSDAY...BUT ARE EXPECTED TO FALL QUICKLY AS THE FRONT MOVES ACROSS THE CASCADES THURSDAY EVENING. BY FRIDAY MORNING...
ACCUMULATING SNOW IS POSSIBLE AS LOW AS SOME OF THE CASCADE PASSES. WITH COOL UNSETTLED WEATHER EXPECTED TO CONTINUE FOR SEVERAL DAYS BEHIND THE FRONT...SNOW SHOWERS MAY CONTINUE THROUGH THE WEEKEND AS LOW AS 3000 TO 4000 FEET IN ELEVATION.
POTENTIAL SNOWFALL OF 2 TO 4 FEET ARE POSSIBLE AT AND ABOVE THE PASSES FRIDAY THROUGH SUNDAY...WITH THE HEAVIEST ACCUMULATIONS EXPECTED ABOVE THE PASSES.
SANTIAM PASS...MCKENZIE BRIDGE...OAKRIDGE...WILLAMETTE PASS...
COLDWATER RIDGE VISITORS CENTER...MOUNT ST. HELENS
..SIGNIFICANT SNOWFALL OVER THE CASCADES IS EXPECTED FRIDAY AND SATURDAY...
A STRONG LOW PRESSURE SYSTEM WILL RAPIDLY STRENGTHEN INTO A POWERFUL STORM TODAY AND THURSDAY. WHILE THE CENTER OF THIS LOW PRESSURE SYSTEM IS EXPECTED TO REMAIN IN THE GULF OF ALASKA...IT WILL PUSH A STRONG COLD FRONT ONSHORE INTO THE PACIFIC NORTHWEST THURSDAY.
SNOW LEVELS WILL START OFF WELL ABOVE THE CASCADE PASSES EARLY THURSDAY...BUT ARE EXPECTED TO FALL QUICKLY AS THE FRONT MOVES ACROSS THE CASCADES THURSDAY EVENING. BY FRIDAY MORNING...
ACCUMULATING SNOW IS POSSIBLE AS LOW AS SOME OF THE CASCADE PASSES. WITH COOL UNSETTLED WEATHER EXPECTED TO CONTINUE FOR SEVERAL DAYS BEHIND THE FRONT...SNOW SHOWERS MAY CONTINUE THROUGH THE WEEKEND AS LOW AS 3000 TO 4000 FEET IN ELEVATION.
POTENTIAL SNOWFALL OF 2 TO 4 FEET ARE POSSIBLE AT AND ABOVE THE PASSES FRIDAY THROUGH SUNDAY...WITH THE HEAVIEST ACCUMULATIONS EXPECTED ABOVE THE PASSES.
Friday, July 31, 2009
Fire Weather Watch
http://www.wunderground.com/US/OR/007.html#FIR
... Fire Weather Watch in effect from Saturday morning throughSunday evening for scattered thunderstorms and critically dryfuels for the central Oregon Cascades and foothills and the southern half of the north Oregon Cascades and foothills and the central Oregon Coast Range...
The National Weather Service in Portland has issued a FireWeather Watch... which is in effect from Saturday morning through Sunday evening. An upper level low pressure system will remain off of theCalifornia coast for the next several days. The hot temperatureswe saw this week have dried out fuels to critical levels across thearea.
Increasing moisture with the low will bring the necessaryingredients into place for the development of scatteredthunderstorms across the district. The combination of lightningand critically dry fuels will result in an elevated risk formultiple ignitions. The highest potential for significantlightning producing thunderstorms will be on Saturday and Sundayafternoon and evenings... however... this may be a long lived eventand this watch may need extending in the future.Precautionary/preparedness actions...
A Fire Weather Watch means that critical fire weather conditionsare forecast to occur. Listen for later forecasts and possible flag warnings.
... Fire Weather Watch in effect from Saturday morning throughSunday evening for scattered thunderstorms and critically dryfuels for the central Oregon Cascades and foothills and the southern half of the north Oregon Cascades and foothills and the central Oregon Coast Range...
The National Weather Service in Portland has issued a FireWeather Watch... which is in effect from Saturday morning through Sunday evening. An upper level low pressure system will remain off of theCalifornia coast for the next several days. The hot temperatureswe saw this week have dried out fuels to critical levels across thearea.
Increasing moisture with the low will bring the necessaryingredients into place for the development of scatteredthunderstorms across the district. The combination of lightningand critically dry fuels will result in an elevated risk formultiple ignitions. The highest potential for significantlightning producing thunderstorms will be on Saturday and Sundayafternoon and evenings... however... this may be a long lived eventand this watch may need extending in the future.Precautionary/preparedness actions...
A Fire Weather Watch means that critical fire weather conditionsare forecast to occur. Listen for later forecasts and possible flag warnings.
Subscribe to:
Posts (Atom)
Posts
