Welcome to the new Grand Solar Minimum
“Many areas east of the Rockies and west of the Appalachians will witness dangerous and record-breaking cold into the first half of the upcoming week,” warns the National Weather Service. “Hundreds of daily low maximum and minimum temperatures will be broken with some February and even all-time low temperature records in jeopardy.”
14 Feb 2021 – More than 150 million Americans are currently under Winter Storm Warnings, Ice Storm Warnings, Winter Storm Watches, or Winter Weather Advisories as impactful winter weather takes shape from coast-to-coast.
Major winter storm to spread heavy snow and significant ice accumulations from the Plains to the Northeast.
Frigid Arctic air and dangerously cold wind chills to persist in the Heartland into next week.
Sub-freezing temperatures are working in tandem with an active storm track to generate a large swath of accumulating snowfall and treacherous ice accumulations. Icy conditions look to linger around the Mid-Atlantic Sunday morning but should improve throughout the day.
Parts of South Texas under Winter Storm Watches for first time in a decade
Conditions will deteriorate throughout the day in the southern Plains and Lower Mississippi Valley as a major winter storm spreads over the South Central U.S. The footprint from this winter storm is so large that parts of South Texas are under Winter Storm Watches for the first time in a decade.
Periods of snow, heavy at times, will be common from New Mexico to the Mississippi Valley today with the heaviest accumulations likely in central Oklahoma and the Sacramento Mountains of New Mexico. In addition, significant ice accumulations are forecast from the Texas coast to the Tennessee Valley from Sunday afternoon into Monday. The worst ice-related impacts occur on Monday. The swath of accumulating ice on Monday is impressive, stretching from south Texas to the northern Mid-Atlantic.
Heavy snow on Monday will also blanket much of the Lower Mississippi, the Ohio Valley, into the Northeast. The forecast through early Tuesday morning calls for 8 to 12 inches in central Oklahoma with locally higher amounts possible.
An area of 4 to 8 inches of snow looks to extend from east Texas and the Ohio Valley to the Northeast. Substantial ice accumulations of up to a half inch are possible from the Lower Mississippi Valley to the Tennessee Valley leading to dangerous travel conditions, numerous power outages, and extensive tree damage.
Cascade snowfall to be measured in feet
Wintry weather is also on tap in the Northwest and Intermountain West as more Pacific moisture moves into these regions. Lighter accumulations are anticipated in the lower elevations, but the mountainous terrain will receive the heaviest totals. Through Monday night, the Cascades are likely to receive the most snowfall with accumulations being measured in feet in the highest elevations.
Snowfall over a foot is likely from the Bitterroots of Idaho and Tetons of western Wyoming to the Wasatch and central Rockies. Winter Storm Warnings, Winter Storm Watches, and Winter Weather Advisories are located across most of these areas, along with some ongoing Avalanche Warnings in effect through Sunday evening.
Dangerous and record-breaking cold
Many areas east of the Rockies and west of the Appalachians will witness dangerous and record-breaking cold into the first half of the upcoming week. The north-central U.S. should once again see sub-zero high temps on Sunday, with single digit highs stretching as far south as the Texas Panhandle.
Low temperatures are forecast to be range between -20 to -30 degrees across the Northern Plains and Upper Midwest. Gusty winds throughout much of the Plains and Midwest continue to foster life-threatening wind chills between -30 to -60 in the north-central CONUS.
Wind Chill Advisories extend as far south as the Southern Plains and as far east as the Ohio Valley.
Hundreds of record lows – Even all-time low temperature records in jeopardy
Hundreds of daily low maximum and minimum temperatures will be broken with some February and even all-time low temperature records in jeopardy. Daily temperature anomalies in the Southern Plains both Sunday and Monday are likely to range from 25 to 40 degrees below normal.