Forecast news: Major winter storm to bring widespread moisture to Colorado starting tonight #codrought #cowx

From the National Weather Service Grand Junction office:

Mid to high level clouds are moving across the area this morning ahead of a low pressure center that is currently centered over central Nevada. The yellow lines are isobars or lines of equal pressure. They also indicate the strength of the pressure gradient. When the lines are far apart the pressure gradient is low, when they are close together or ‘tight’ the pressure gradient is high. As you can see in the while circle, the yellow lines are very close together indicating a tight pressure gradient which will cause strong surface winds. Today, the forecast area will see strong winds for much of the day as this gradient approaches and moves over Utah and Colorado. Snow is also expected and with strong winds, blizzard conditions are likely. As such, a blizzard warning has been issued for northeastern Utah and the valleys of northern Colorado. In addition to the blizzard warning, winter storm warnings and advisories have been issued, wind advisories and high wind watche! s have been issued, a Red Flag Warning has been issued and a Freeze Warning has been issued for Wednesday morning.

From the National Weather Service Pueblo office:

A potent spring storm system is expected to bring a variety of active weather to most of southern Colorado today through Tuesday. In the immediate future…strong winds will develop across the region…with Red Flag Warnings in effect in the San Luis Valley and most of the southeast plains. The combination of strong winds…low humidity and already dry conditions will create explosive fire growth potential. Strong to severe thunderstorms could develop over the extreme eastern plains by late afternoon. As the system marches into the state tonight…a variety of winter conditions are expected…including a Blizzard Watch along the Palmer Divide…and Warnings…Watches and Advisories over the southern mountains and along the I-25 corridor…as well as a good chance of snow from the mountains eastward.

From the National Weather Service Boulder office:

Very complex spring storm taking aim on Colorado. Potential for heavy snow & severe wx including tornado threat.

From the Fort Collins Coloradoan:

A winter storm watch has been issued for Larimer County as a spring storm bears down on Fort Collins. After a high near 60 degrees Monday, temperatures will drop sharply, turning evening rain into snow around 9 p.m. according to the National Weather Service. Overnight Monday, temperatures will continue to drop to around 19 degrees, with snow accumulation from three to seven inches and winds in the mid-20 m.p.h range according to the weather service. Tuesday, cold, wind and snow are expected to continue with another three to five inches possible according to the weather service. Snow is forecast to taper off Tuesday evening with cold lingering throughout the week.

From The Denver Post (Joey Bunch) via The Greeley Tribune:

The National Weather Service gives the Greeley area a 90 percent chance of snow — up to 7 inches — Monday night, after a forecast high of 63 degrees this afternoon. Rain and thunderstorms are expected to roll into the region in the afternoon with a southwest wind gusting up to 31 mph, forecasters said Sunday afternoon. Rain is expected to turn to snow about 9 p.m. with the heaviest snow after midnight.

Northern, central and western portions of the state are under a winter storm watch from late tonight through Tuesday afternoon, the National Weather Service said. An area east of Sterling to Limon on the Eastern Plains could pick up nearly a foot of snow from the storm, forecasters said. “A strong spring storm system will bring very strong winds and heavy snowfall to the region late Monday night through Tuesday,” forecasters stated Sunday, adding that snow drifts could range from a few inches to a few feet. Visibility could fall to zero at times, the agency stated.

The Greeley area has a 90 percent chance of additional snow Tuesday morning, but the afternoon threat is blowing snow with a north wind delivering gusts up to 28 mph. The high temperature in the city Tuesday could reach only 24 degrees. Partly sunny skies return to the metro region Wednesday with a forecast high of 36 degrees — which is 24 degrees colder than the 30-year average of 60, according to weather records.

From The Grand Junction Daily Sentinel (Paul Shockley):

Hold off on the shorts, at least for a few days. A significant storm system packing potential for rain late Monday and trace amounts of snow in the Grand Valley after midnight is on the way, bringing with it potential freezing temperatures in its wake, according to the National Weather Service in Grand Junction. “There’s a good chance of seeing below freezing temperatures (by Wednesday morning) and those apricots and cheery trees blooming are going to be at risk,” said Ellen Heffernan, meteorologist with the local Weather Service office. “It’s something we’re looking at closely.”

Overnight on Monday could bring minimal amounts of snow in the valley but potentially a foot of snow in the mountains, she said.

Separately, the Weather Service released data this week suggesting a chilly start for the Grand Valley for 2013. For the period of Jan. 1 to March 31, the average temperature was 29.9 degrees, the 14th coldest year on record dating back to 1893. The three-month stretch this year was the coldest for Jan. 1 to March 31 since 1988. The coldest temperatures over that three-month period came in 1933, which recorded an average of 27.1 degrees. Blame January’s inversion for this year’s colder-than-normal data for Jan. 1 to March 31, meteorologist Jim Daniels said. “We were running on the coldest January on record right up until the end of the month,” Daniels said.

Leave a Reply