Blizzard baring down on North, South Dakota

December 26th Weather map

(Reuters) – North and South Dakota entered a second day of blizzard conditions on Monday as a strong winter storm closed roads across the region.

The National Weather Service forecast as many as 15 inches of snow to fall in some areas before the storm leaves the area. Authorities in both states told drivers to stay off the roads due to low visibility, snow, wind and ice accumulations.

“Nearly every highway has been shut down (or no travel is advised) during the overnight hours across North Dakota and the western half of South Dakota,” the weather service said.

The weather service also issued blizzard and winter storm warnings for parts of Montana, Wyoming, Nebraska and Minnesota.

The Rapid City, South Dakota office of the weather service reported early on Monday morning that 5.7 inches of snow had fallen already, with more on the way. Power was out on Monday morning for more than 12,000 customers in the states as well, according to area utilities.

The storm had limited impact on people ending their Christmas holiday with plane travel. Flight tracking website flightaware.com reported fewer than 200 cancellations and delays across the country.

The storm is set to continue its northeastern track, which will take it to Quebec, Canada by Tuesday, the weather service said.

(Reporting by Curtis Skinner in San Francisco; Editing by Robin Pomeroy)

Treacherous Travel, Snow, Ice, Thunderstorms, Tornado chances

Christmas eve warning map weather.com

By Brendan O’Brien

MILWAUKEE, Dec 23 (Reuters) – Heavy snow, freezing rain and wind gusts will make holiday travel treacherous in swaths of the northern United States.

A storm is expected to bring rain and then snow to the Pacific Northwest as temperatures hover around freezing on Friday night.

The same system will also dump heavy snow in the Rockies and High Plains late into Saturday, the National Weather Service said in its forecast.

Snow and freezing rain are also in the forecast for much of the Midwest and Northeast late on Friday and through Saturday as temperatures are to dip around freezing, the weather service said.

The deteriorating weather may derail travel plans for some of the 94 million Americans who the American Automobile Association say will hit the roads during the holidays.

“Christmas, for travelers, is going to be a little dicey in some portions of the country,” meteorologist Justin Povick said during his forecast on Accuweather.com.

Accuweather warns that blizzard conditions in the northern Plains over the weekend could cause treacherous white-outs along major interstate highways, power outages and airline delays.

“People from the central Plains and middle Mississippi Valley to the central Plains will need to keep an eye out for rapidly changing weather conditions,” Meteorologist Brett Rossio said on AccuWeather.com.

Signs of how bad weather may cause disruptions for holiday travelers were seen as early as Thursday morning as nearly 250 flights were delayed or canceled in and out Los Angeles International Airport due to high winds and high volume.

A blizzard watch is in effect for the area around Bismarck, North Dakota, where as much as a foot (30 cm) of snow fall and heavy winds will lead to “dangerous Christmas travel conditions,” the National Weather Service said.

To the east, in northern Wisconsin and Michigan, motorists are told to “exercise caution” as snow and freezing drizzle are expected to limit visibility and make roads slick, the National Weather Service said.

Tornadoes, thunderstorms and hail are also in the forecast in the southern U.S. Plains, Accuweather said.

As their neighbors to the north deal with winter weather, people in southern Missouri, Kentucky and Tennessee will enjoy unseasonably warm weather on Christmas Day as temperatures are likely to soar into the 60s, according to the National Weather Service.

(Reporting by Brendan O’Brien in Milwaukee; Editing by Alison Williams)

 

Light winter weather threatening central United States

Portions of 15 states were under winter weather advisories on Tuesday morning as a winter storm was expected to bring snow, freezing rain and sleet later tonight and into Wednesday.

Precipitation types and totals were expected to vary by location, according to the National Weather Service, but none of the states were expected to see more than moderate amounts.

The service issued a winter storm warning for Kentucky, advising up to 5 inches of snow was possible through Wednesday, and winter storm watches in other portions of that state and southern Illinois. Other parts of those states, as well as the 13 others in the service’s advisory area, were largely forecast to get between 1 and 4 inches of snow, or other winter precipitation.

The National Weather Service issued the winter weather advisories for parts of Nebraska, Kansas, Oklahoma, Iowa, Missouri, Arkansas, Indiana, Ohio, Tennessee, North Carolina, Georgia, Alabama, Kentucky, Illinois and Virginia, asking motorists there to exercise caution.

Precipitation was falling in Nebraska, Iowa and Missouri as of late Tuesday morning, the National Weather Service’s radar showed, and it was expected to move east into Wednesday.

The National Weather Service also said it was “monitoring the possibility” of a more significant winter storm that could affect major cities in the northeast this weekend. Early forecasts indicate the storm may bring 1 to 2 feet of snow and coastal flooding along the I-95 corridor, the service said, a stretch that includes cities like Washington, Philadelphia, New York and Boston. The service had yet to issue any watches or warnings for that storm, as it may not materialize.

Separately, a storm arrived on the Pacific Coast on Tuesday and triggered several other notices.

The National Weather Service issued winter storm warnings in mountainous parts of California, which could receive 6 to 18 inches of snow by the end of the day. The service also issued flood advisories for other portions of California, saying rain may cause small streams to flood.

Winter weather advisories were issued in parts of Oregon, Washington, Idaho and Montana as a storm was expected to move east into those states later tonight and into tomorrow, but snow totals weren’t expected to be as significant as they were California. Still, the service called for up to 5 inches of snow in Washington’s valleys and 8 inches in its mountains.

At least 10 dead following Winter Storm Cara, more extreme weather to come

The rain, snow and ice dumped by Winter Storm Cara caused multiple deaths throughout the country, according to media reports, and more extreme weather is forecast for the week ahead.

A USA Today report says at least six people died in ice-storm-related accidents in Oklahoma and Kansas. Flooding in North Texas claimed the lives of at least four more, according to Texas television station WFAA.

The complex and wide-reaching storm dumped more than 20 inches of snow in parts of Nevada, Oregon and California and 14 or more inches in Wyoming, Idaho and Colorado, according to The Weather Channel. An inch or more of ice accumulated on power lines in parts of Oklahoma.

USA Today reported Oklahoma’s governor, Mary Fallin, declared a statewide state of emergency and 100,000 customers did not have power Sunday afternoon. The Weather Channel reported those numbers were down to 58,000 by Monday morning, most of them near Oklahoma City.

Meanwhile, heavy rainfall in Texas helped Dallas break its annual record for precipitation.

USA Today reported Dallas has already received more than 4½ feet of rain this year. The annual total was just shy of 56 inches on Sunday, smashing the 53.54-inch record established in 1991.

WFAA reported “widespread flooding in several areas” of Texas. It said there were 446 car wrecks and 38 water rescue calls between Thanksgiving morning and Sunday evening.

As that storm dissipated, another one was brewing over the Northern Plains.

The National Weather Service has issued winter storm warnings in parts of South Dakota, Nebraska, Iowa, Kansas and Minnesota. Winter weather advisories were also in effect in parts of those states, plus North Dakota and Wisconsin on Monday morning.

CNN is reporting a foot of snow is expected in Minnesota, where the highest totals are forecast.

Winter Storm Cara brings more severe weather to central United States

More power outages and travel delays are being reported as Winter Storm Cara continues to pummel the central United States, and the threat of additional outages and disruption looms as the powerful storm is predicted to generate additional ice and snow throughout the weekend.

Parts of New Mexico, Texas, Oklahoma and Kansas were under ice storm warnings from the National Weather Service on Friday. Flood warnings were in effect in portions of Texas, Kansas, Oklahoma, Arkansas and Missouri. Numerous other advisories and warnings had been issued.

The Weather Channel predicts that 21 states will be subjected to snow, sleet or freezing rain by the time Cara dissipates. Cara is moving slower than usual because of a pattern in the jet stream.

The storm began dropping snow on the Pacific Northwest on Tuesday. The Weather Channel’s forecasts indicate Cara’s energy could linger over eastern states until the middle of next week, and caution that rainfall in warmer regions ahead of the snow could trigger flash flooding.

On Friday, meteorologists were concerned about an ice storm that was developing in a swath that stretched from eastern New Mexico into northern Texas, central Oklahoma, southeastern Kansas and northwestern Missouri. That’s where the icy precipitation was expected to accumulate the most and last the longest, according to meteorologists at AccuWeather.com.

They warned of a half inch of ice building up on certain exposed surfaces. AccuWeather’s senior vice president of enterprise solutions, Mike Smith, told the organization’s website that the storm could also cause “significant power failures” in certain parts of Oklahoma and Texas.

The Weather Channel reported a quarter of an inch had already built up in Woodward, Oklahoma, on Friday morning, and the entire town of Rockwell City, Iowa, was without power.

The snow has also led to travel delays and accidents throughout the country.

The Minnesota State Patrol had reported 139 crashes as of 9 p.m. Wednesday night, according to WCCO in Minneapolis. At least one of those accidents was fatal and 33 of them caused injuries.

Some motorists became trapped in the snow on roads in southern California, the California Highway Patrol told the Los Angeles Times. Officials in Idaho reported cars slid off roads there.

According to The Weather Channel, the heaviest snowfall was reported in Nevada, where an estimated 25 inches fell near Deeth. More than 20 inches of snow were reported in parts of California and Oregon, and 14 inches were reported Buhl, Idaho and Sinks Canyon, Wyoming.

It wasn’t just the snow that was accumulating, as an NBC News report indicated Dallas-Fort Worth broke its all-time rainfall record with Cara’s precipitation early Friday morning. More than 53 inches of rain have fallen there since the start of the year.

Winter Storm Cara poised to impact Thanksgiving travel

A powerful winter storm is disrupting Thanksgiving travel plans across the United States, bringing ice, snow and rain to those in its path.

Winter Storm Cara pummeled the Pacific Northwest with more than a foot of snow and knocked out power to thousands of people on Tuesday, and the storm appears to be only getting started.

The National Weather Service has issued numerous weather advisories and warnings across the country, ranging from hard freeze and winter storm warnings in Oregon to winter weather and flood watches in Oklahoma. Parts of Wyoming are under a blizzard warning on Wednesday.

There are more concerns of snow, black ice, fog and flooding as the storm continues to move east, according to forecasts from The Weather Channel and AccuWeather.

Those are expected to cause travel delays at airports and on highways from the Rocky Mountains to the Great Lakes into Friday, meteorologist Dave Bowers told accuweather.com.

The latest Weather Channel forecasts call for Cara to dump a foot and a half of snow in parts of the country through Sunday, though most areas are projected to receive less than five inches.

AccuWeather meteorologists also warn of the potential impact of other forms of precipitation.

While they don’t expect freezing rain will be a major issue for most of the country, there is the chance for enough accumulation to bring down power lines and trees in the Great Plains.

They also noted that some areas could experience flash flooding as rain is expected to fall across the Great Plains on Thursday and Friday. The storm is expected to continue east Saturday.

The Weather Channel also warned of the potential for flooding and flash flooding throughout the weekend, as conditions are ripe for torrential rainfall in the south central United States.

The Associated Press reported on Tuesday that parts of Washington had already been without power for nearly a week after a deadly windstorm knocked out the electrical grid in Spokane. Cara’s winds then knocked out power to more than 40,000 Washington residents, KIRO reported.

Hidden Volcanoes Threatening Major Antarctic Glaciers

Scientists investigating the rapid increase in movement of Antarctic glaciers have found that underwater volcanoes are heating water and increasing ice melt.

The segment of ice in danger has six major glaciers that are facing major collapse.  If the area completely melts, the entire global sea level will rise at least four feet.  (A collapse is considered the point when a glacier starts an unstoppable retreat that would drop millions of tons of ice into the sea.)

Dustin Schroeder of the University of Texas at Austin says that volcanoes and “other geothermal hotspots” are driving the melting of the glaciers and recent studies are showing there is no way to stop the eventual collapse of the glaciers.  The challenge to scientists is to accurately estimate if it will take hundreds of years or thousands for the glaciers to be completely destroyed.

The problem with predicting the outcome is that computer models cannot accurate anticipate the volcanic activity taking place under the ice sheet.  Much of the area is unexplored and unmapped, as a new under-ice volcano was discovered in 2013.

One of the hottest points is around Mount Takahe, a volcano that actually has broken through the ice sheet.  There are smaller volcanoes and vents that increase the temperature of the water as much as three times the level of sea water under other parts of the continent.

Schroeder said the scientists believe the extra melt from the volcanoes lubricates the ice sheets from beneath and accelerates their slide toward the open water.