Wed, 02 Jul 2008 10:23:01 EDT http://www.noaawatch.gov/themes/winter.php NOAA Information on Winter Weather noaawatch@noaa.gov http://validator.w3.org/feed/docs/rss2.html en-us noaawatch@noaa.gov http://www.noaawatch.gov/images/rss/winter.gif http://www.noaawatch.gov/themes/winter.php NOAA Logo http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A mid-upper level low across eastern Wyoming this morning will meander east and eventually north across the High Plains today and tonight, bringing periodic moderate to heavy snow showers across portions of the Northern Rockies above 4500-5000 feet, particularly across the Big Horn Mountains in north-central Wyoming where probabilities of an additional 4-8+ inches of snow will be highest through this evening. Sat, 28 Apr 2012 08:00:29 EDT ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml An approaching upper level jet streak will cause a trough to amplify off the Pacific Northwest Coast. Until then, expect continued strong, deep-layer moist west southwest flow and favorable orographic component to bring more heavy snowfall today/tonight across the Washington/Oregon Cascades and into the northern Rockies. New snowfall amounts will be highest today across the northern Washington Cascades, as well as in the Sawtooth/Teton ranges in central Idaho and western Wyoming. A period of light snow is expected tonight across the higher elevations of the southern tier of New York, and the northern border counties of Pennsylvania. Localized accumulations of 2 to 4 inches are anticipated by daybreak Saturday. Fri, 30 Mar 2012 09:04:46 EDT nancy.merckle@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Mountain snow will blanket sections of California as an upper cyclone feeds off a steady transport of Pacific moisture. Orographic lift along the favored terrain will lead to locally heavier pockets of precipitation. By Sunday night, the upper trough is expected to finally translate inland spreading scattered rain/snow showers to the interior mountain west. Highest snowfall accumulations are expected across the Shasta and southern Sierra Nevada with up to a foot possible through Tuesday morning. Sun, 25 Mar 2012 08:14:24 EDT nancy.merckle@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml The approach of a jet streak in advance of an upper low should be in place across northern California Saturday and drift east Saturday night, bringing in an area of moderate to locally heavy snowfall amounts possible in the Shasta/Siskiyous/Trinity Alps. Snow should move further south on Sunday. The models still show enough cold air to warrant a risk of heavy snow into the southern Sierra Range. Sat, 24 Mar 2012 06:35:15 EDT ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Moist upslope southerly flow will bring a swath of light snowfall over portions of the Central Rockies, especially in central and southwest Colorado. The probability of significant snowfall (8 or more inches) will be less than 10 percent through Tuesday morning however, there will be a moderate risk for at least 4 inches across the San Juan Range in southwest Colorado. Mon, 06 Feb 2012 07:35:09 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A short wave digging through the Inter-mountain West/Four Corners Region on Wednesday will proceed through the eastern two thirds of the country Thursday and Friday. The heavy snowfall potential today will be highlighted across the Colorado Rockies and across the central Plains into the middle Mississippi Valley. The heaviest snowfall of 4 to 8 inches appears likely from central Nebraska to northeastern Kansas and through north central Missouri, especially around the Kansas City metro area. Snow is also forecast over the Appalachians into New England. Wed, 19 Jan 2011 06:30:15 EST nancy.merckle@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml The combination of an intensifying area of low pressure moving up the East Coast and a shallow but sub-freezing air mass entrenched across the Northeast and northern Mid-Atlantic states will result in widespread heavy snow and freezing rain on Tuesday. A deepening low moving up the coast will bring Atlantic moisture into the Northeast and New England for moderate to heavy snowfall and significant ice accumulations. A Pacific short wave will bring moderate to heavy snow from the Oregon Cascades to the Tetons. Tue, 18 Jan 2011 06:58:54 EST nancy.merckle@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml An upper disturbance will slide through the upper Mississippi Valley and weaken tremendously on Monday. This feature is already producing a wide and expansive shield of snow across Iowa and southern Minnesota early this morning. This light to moderate snow activity should lift off to the north and east into Wisconsin and Michigan and be completely detached from the deeper moisture content down south. A surface wave will track up the Southeast coast and draw north a surge of anomalous low level moisture. As this happens, a solid surface ridge established over the Northeast and wedging south into the Mid-Atlantic Region will remain locked in place. This shallow air mass will be difficult to erode initially, while strong mid-level warming and moisture content surges into the region very late Monday into Tuesday. The northern extent of the expanding precipitation should start off as some light snow and freezing rain. Mon, 17 Jan 2011 07:48:03 EST nancy.merckle@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A strong jet stream will focus orographic precipitation along the Canadian border, including the Cascades. Additional air off the Pacific will help raise snow levels as far east as northern Idaho. In the Northern Rockies, snow levels will continue to lift given westerly flow aloft. This will hold snow accumulations down a bit, but there should still be plenty of snow at higher elevations from Montana into northwest Wyoming. Across the Great Lakes and Midwest, the first in a series of mid level shortwaves and an associated surface low will scoot just north of the border. This will produce generally light to moderate snowfall amounts due to a pronounced lack of moisture. Cold advection in the wake of the low across the open waters of the Great Lakes will result in lake enhanced snowfall. This appears to be especially true to the lee of lakes Ontario and Erie. Sat, 15 Jan 2011 08:03:24 EST nancy.merckle@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A strong jet stream will focus on the Pacific Northwest, propelling Pacific moisture into the Northern Rockies. Expect areas of heavy orographically enhanced snow for the north end of the Washington Cascades into the Northern Rockies with focus on the Sawtooth, Tetons, and especially the Bitterroots. Accumulations in excess of 1 foot and locally up to 2 feet will be possible over the next three days. A deepening low moving from the Pacific Northwest will move over the Upper Midwest later today. As it does so, it should couple with low level east to southeast upslope flow to produce a streak of mainly light snow from eastern Montana into the Dakotas and eventually into the Great Lakes. A low to moderate risk of 4 inches is indicated north of the track of the low. Fri, 14 Jan 2011 05:25:26 EST ronald.c.jones@noaa.gov http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=usa&wwa=Frost%20Advisory Frost Advisory are in effect Tuesday morning for many areas from the Great Lakes region into the Mid-Mississippi Valley, Oklahoma, and east into the Tennessee and Ohio Valleys. Tue, 05 Oct 2010 05:25:22 EDT ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/discussions/qpfhsd.html An upper trough from the late season snow storm will partially remain over the Central Rockies on Thursday and Friday. Upper difluent flow and jet maxima will then remain somewhat stationary across Colorado, combined with a low level anticyclone over the Plains funneling low level moisture into the foothills/front range of Colorado will result in 4 to 8 inch snowfalls Thursday and Friday over the Colorado Rockies. Thu, 13 May 2010 05:25:47 EDT ronald.c.jones@noaa,gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml As a low pressure system off the Mid-Atlantic coast moves northeast through sunday night, precipitattion will continue to wrap around west of the circulation center into western New England. While mostly rain is expected along the coast, accumulating snows are expected in the Berkshires of Massachusetts and nearby higher elevations in adjacent portions of New York, Vermont, New Hampshire, and Maine. Sun, 18 Oct 2009 07:30:40 EDT ronald.c.jones@noaa,gov http://www.hpc.ncep.noaa.gov/discussions/qpfhsd.html The passage of yet another low pressure center will bring the risk of 4 to locally 8 inch snowfall amounts to the higher elevations of the Pacific Northwest into the Northern Rockies. Snows in the northern and central Cascades should be tapering off Thursday morning. Snow should be spreading eastward during the day on Thursday from the Bitterroot Range into the Northern Rockies and the Absaroka Range as the low progresses east. Snow levels should start out fairly high, around 5000 feet, and then decrease somewhat. The best risk of heavier snow will be mainly confined to higher elevations. Thu, 14 May 2009 05:15:42 EDT ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml An upper level disturbance off the coast of California will spread ample moisture into the Intermountain West. Widespread heavy snowfall is expected the next three days across the western terrain, especially in the Tetons/northern Wasatch and Colorado Rockies. Thu, 22 Jan 2009 05:20:26 EST Ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A weak surface low exiting the Mid-Atlantic coast will bring an area of light snow from southeastern New York and New Jersey to southern New England. Heavy lake-effect snow is possible across parts of Michigan, northwest Pennsylvania, and southwest New York. Wind chill warnings and advisories remain for much of the Northern Plains and Midwest and into the Mid-Atlantic and New England. Winter storm and high wind warnings are up across interior parts of central Alaska. Thu, 15 Jan 2009 07:05:48 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Record-breaking extreme cold is freezing the Northern Plains and Midwest and dropping temperatures close to 50 below in spots. The fast moving clipper system will reach eastward just north of the Ohio valley today and exit the New Jersey coast by early Thursday. In the wake of the clipper system, a surge of Arctic air will bring bitterly cold temperatures across the northern Plains, Midwest, and interior New England. Wind Chill Warnings are in effect for parts of the northern Plains and Midwest. Localized bands of heavy snow to the east and southeast of the Great Lakes is possible. Light snow is also possible from Montana through western Kansas. Wed, 14 Jan 2009 06:42:05 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml On Monday, 3 to 6 inches of snow fell across the southern third of Minnesota, including Minneapolis causing some travel headaches. A record low temperature of 32 below zero was recorded at Grand Forks, North Dakota, on Monday. Temperatures this morning across northeast North Dakota and northwest Minnesota ranged from 25 to 35 below zero. For today, heavy snow is possible across the northern Plains and also across parts of Pennsylvania, New York, and New England. Tue, 13 Jan 2009 06:47:33 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml More than 50 vehicles were involved in an accident on Sunday morning due to snow and ice covered roads on Interstate 93 in southeastern New Hampshire. For Monday, heavy snow is possible across southern Minnesota, Wisconsin, Iowa, northern Illinois, and lower Michigan. Blizzard warnings are up for parts of North South Dakota, and Iowa. Mon, 12 Jan 2009 07:03:14 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Residual snow associated with a low moving off the coast of New England will add a few more inches. Selected storm total snowfall totals from this storm (beginning on the morning on Jan 8) include: in Pennsylvania, Rimersburg 12.0 inches, Cabot 10.5 inches, and Ridgway 10.5 inches. In Ohio, Dorsett 12.0 Inches, Youngstown Municipal Airport 11.4 Inches, And Cleveland Airport, Mansfield, And Toldeo 10.0 Inches. In New York, Jamestown 5.5 inches, Binghamton 5.1 inches, and Interlaken 5.0 inches. Over the Northern Plains, a low will dig southeaastward Alberta into the Dakotas and may produce localized 4 inch plus snow totals across parts of North Dakota. Sun, 11 Jan 2009 08:05:05 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A strong mid/upper jet will send a stream of Pacific moisture across the Pacific Northwest and northern Great Basin/Northern Rockies. Most ranges east of the Cascades should remain cold enough for snow, with 1 foot amounts possible over the Washington Cascades and the terrain of northern Idaho. Over the Southern Plains, the developing wave will result in freezing rain developing over portions of north Texas and southeast Oklahoma into western and northern Arkansas. Models indicate that a quarter inch plus amounts of freezing rain are possible near the Dallas/Fort Worth and Little Rock areas through Tuesday morning. By Tuesday, a low will track west of the Appalachians from the Tennessee Valley to southern Ontario, resulting in a setup for widespread freezing rain and sleet from western Virginia and Maryland and eastern West Virginia through south central and into northeastern Pennsylvania. Mon, 05 Jan 2009 05:27:35 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A deepening low along the New England coast will bring snowfall during the next 24 hours along the Eastern Seaboard from southern New York to Cape Cod and points inland, including extreme southeast New York state, southern New Hampshire/southern Vermont, northern Massachusetts, and southwest Maine. Heaviest snowfall, from 6 to 10 inches, is expected to extend from west central Connecticut to the northern suburbs of Boston, with parts of the coast from Long Island to Cape Cod receiving 4 to 6 inches. In the Pacific Northwest, snow will extend from the Blue Mountains of northeastern Oregon eastward to the Bitterroots and Tetons. Snowfalls of 4 to 8 inches above 4500 feet and 8+ inches above 5500 feet along favored southwest-facing slopes are expected. Isolated 4+ inch snowfalls are also expected across the Olympics and coastal ranges, with generally 6 to 10 inches above 3500 feet across Washington and closer to 4500 feet across northern Oregon. Wed, 31 Dec 2008 08:05:00 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Some selected snow totals as of this morning 36 inches in Vail, Colorado 24 inches (Wolf Creek Pass (Mineral County)) 22 inches in Natrona County, Wyoming 14 inches in Todd County, Minnesota and 13.6 inches in Williams County, North Dakota. For today, winter storm warnings are posted for the White Mountains and Grand Canyon of Arizona above 6000 ft for heavy snow and blowing snow, the Sierra Nevada range of California including Los Angeles and Ventura Counties for more than a foot of snow, and the San Juan range in Colorado. Winter storm warnings are up for tonight across much of Kentucky, southern Illinois Indiana, and extreme southeast Missouri for significant freezing rain, sleet and some snow by tonight as temperatures plummet. Mon, 15 Dec 2008 11:04:00 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Snow fell Monday and Monday night across lower Michigan and interior parts of the northeast. Accumulations were mainly in the nuisance range of 1-4 inches with isolated areas approaching 6 inches. Some freezing rain was also reported in the mountain valleys of Pennsylvania, Kentucky, New York, and across Indiana and Ohio. One fatality was reported in a vehicle accident on a bridge in Kentucky. A male in his lower 70s lost control of his vehicle on an ice-covered bridge near Jackson, Kentucky, Monday morning. A 20-vehicle accident occurred around 6 a.m. Monday morning in Fort Wayne, Indiana. One minor injury was reported with this accident there were no fatalities. For today, heavy snow is possible across interior New York and New England and also across the mountains of West Virginia. Tue, 25 Nov 2008 03:18:31 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Low pressure moving from the Wisconsin/Illinois border to Lake Huron, combined with cold air in place will bring snow across Michigan and into Ohio. Heaviest snowfall will be in northern and central lower Michigan with lesser amounts into Ohio. Snow from this system will spread into parts of New York and Pennsylvania late Monday. Snow is also possible in the higher elevations of eastern West Virginia. As the low over Lake Huron deepens Tuesday and Wednesday, snow will increase over New York and New England. Snow is indicated in the northern White Mountains in northern New Hampshire and Maine where precipitation should start with a burst of moderate to heavy snow before changing over to rain. Westerly winds across the open waters of Lake Erie and Ontario will result in another round of lake effect snows Tuesday and Wednesday. Heaviest accumulations are expected to the lee of Lake Erie. Snows will be slower to develop to the lee of Lake Ontario. Mon, 24 Nov 2008 05:37:05 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Lake effect snows will be tapering off from west to east across the Great Lakes as conditions become less favorable. In addition to less favorable winds, the temperature at low levels will be increasing with time. The best chance for moderate to locally heavy snows will remain over the eastern Great Lakes where the wind shift and warmer temps aloft arrive the latest. Amounts may locally exceed a foot where lake effect combines with topographic lift. Sat, 22 Nov 2008 08:42:30 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Heavy lake effect snow is expected across the snow belt regions of Michigan, Ohio, northwest Indiana, western Pennsylvania, western New York, and the mountains of West Virginia, Virginia, North Carolina, and Tennessee. Heavy snow is also expected in the west in the chimney stack of Idaho, and the Cascade Range in Washington. Thu, 20 Nov 2008 07:26:47 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Snow is expected across the Great Lakes region including parts of Michigan, northeastern Ohio, and western New York. Expect heavy snow, with 6 to 10 inches of lake effect snow likely and gusty conditions, in parts of northern Michigan. In northern New York, expect 2 to 5 inches, with higher snow accumulations at higher elevations. Wed, 19 Nov 2008 07:17:02 EST carol.baldwin@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Bands of lake effect snow will diminish by Tuesday afternoon as winds lessen. There should still be additional areas of heavy snow, especially this morning, south and southeast of the lakes and into the terrain of the central Appalachians with localized additional 4 inch amounts possible in the most favored spots. On Wednesday, another disturbance in the upper wind flow will move across the upper Great Lakes with some 4 inch plus snow amounts possible primarily across the Michigan Upper Peninsula and northern Lower Michigan. After this weather features moves past the Great Lakes, strong cold advection and northwesterly flow Wednesday night will touch off bands of lake effect snow southeast of Lakes Superior and Michigan. Tue, 18 Nov 2008 05:30:46 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml#snow A significant early season winter storm will continue to impact parts of the Northern Rockies and especially the northern High Plains through Sunday. Based on the latest guidance, additional snowfall amounts of 8 to 12 inches are expected across parts pf northeastern Montana. which is where snow should linger the longest. Lesser amounts are expected to the southwest toward the higher terrain of the Northern Rockies including the Tetons and the Big Horns as the precipitation will be quicker to taper off here. Winter Storm Watches and Warnings have been issued by local Weather Forecast Offices. Sun, 12 Oct 2008 07:32:10 EDT ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/discussions/qpfhsd.html An upper level trough exiting the Rockies will evolve into a Central Plains closed low with a deepening low level circulation. Models continue to suggest that precipitation will change to snow as dynamic cooling occurs and some low level cold air is drawn southwestward across parts of western and central Nebraska later Thursday and Thursday night. Localized 4 inch plus amounts are possible mainly over central Nebraska. Mid and upper level Pacific energy is forecast to approach the West Coast Thursday night as an elongated trough develops. Most of the mid level onshore flow and associated moisture will be reaching into northern and central California and southern Oregon. This system will bring a threat of snow amounts up to around 8 inches through the more favored higher elevations of the Sierra. Wed, 31 Dec 1969 19:00:00 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Ridging along the West Coast will help amplify a Trough downstream over the Great Basin on Friday, which will help develop a low pressure center over the western High Plains. Snow should be developing over the Rockies and then spread out over the Plains as the low deepens. The heavier snows are expected across the Colorado Rockies. The longer duration of snow is expected in the higher terrain where 4 to 8 inches are possible. Snow showers are expected behind the frontal boundary over parts of the Wasatch and Uintas Wed, 31 Dec 1969 19:00:00 EST ronald.c.jones@noaa,gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml The Pacific storm system will bring moisture into the Pacific Northwest and Northern Rockies. The strong influx of Pacific moisture should support snowfall amounts of one foot on Friday, with the overall heaviest amounts primarily in the Washington Cascades, with secondary maxima in the Bitterroots and Sawtooth Ranges. In the Northeast, a developing low is forecast to remain off the New England coast today and tonight. An onshore flow will develop, supporting a band of snow today/tonight. By Saturday, the combination of the deepening low, onshore flow, a developing frontal system, and upper level disturbance will bring a threat of a significant snow event to parts of Maine and northern New England where a foot of snow is possible. Over the Great Lakes, a strong flow of Arctic air will result in areas of enhanced lake-effect snow showers. The greatest threat is on the south shore in southwest lower Michigan and adjacent Indiana. Wed, 31 Dec 1969 19:00:00 EST ronald.c.jones@noaa,gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml Over the eastern Great Lakes, significant lake effect snowfall is expected across Lake Erie and Lake Ontario. A moderate to high risk of 4 inches or more will be downwind of Lake Ontario in the Tug Hills region of western New York. A slight risk of 4 or more inches will be downwind of Lake Erie from the NY/PA border, along I-90 to Buffalo NY. In the West, moderate snowfall is expected across the Cascades and Siskiyous. Best threat for some 8 or more inch totals exist across the western slopes of the Oregon Cascades and southern slopes of the Trinity Alps. Snowfall accumulations of a foot or more are possible in the northern/central Sierra with 4 to 8 inches likely in the foothills between 3500-5000FT MSL by Sunday morning. There is a risk of of 4 to 8 inches of new snow in the western Oregon/northern and central Idaho ranges as well. Wed, 31 Dec 1969 19:00:00 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A very dynamic low making its eastward from the western High Plains will be filling as it moves east across the Plains and finally opening up the system later tonight. With the system beginning to fill, snow should be weakening throughout the day over the Plains. In addition, the system will be moving into a warmer environment where temperatures will begin to limit the amount of ice crystals in the column. Model guidance indicates perhaps a couple more inches of snow, mainly in Kansas. Blizzard conditions will still be possible after the snow stops falling due to strong and gusty winds. Conditions should improve from west to east during the day. A Pacific trough dropping into the Northern Rockies will produce widespread but light snow over the Northern Rockies later tonight. The best chance for 4 inches of snow looks to be in parts of Idaho/Montana where amounts should be enhanced somewhat by additional low level lift due to orographics. Wed, 31 Dec 1969 19:00:00 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A series of upper level disturbances will move through the West Coast and eventually emerging into the Plains, helping spread of shower activity across much of Oregon and California the next 2 to 3 days. The larger snowfall accumulations are forecast in the Sierra/Cascades above 4500 FT MSL, and the Siskiyous above 4000 FT MSL. Orographic lift supports a foot or two above 5500 FT MSL with over 3 more feet of snow above 6500 FT MSL between today and Sunday morning in the Sierra. In the Rockies, snowfall accumulations will be highest above 6000 to 7000 FT MSL during the next several days in Idaho, northern Nevada, western Wyoming, and northwest Montana with convective elements dropping snow levels down below 5500 FT MSL. The disturbances will spread snow into the Plains and Midwest by early in the weekend. Wed, 31 Dec 1969 19:00:00 EST ronald.c.jones@noaa.gov http://www.hpc.ncep.noaa.gov/wwd/winter_wx.shtml A closed upper low and trough will dig down the California coast on Sunday and move roughly parallel to the coast. Pacific moisture will move across southern California and into the central/southern Sierra. This should be ideal for moderate to heavy orographic snowfall on Sunday. Wed, 31 Dec 1969 19:00:00 EST ronald.c.jones@noaa.gov