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Big Story Weather – January 20, 2014

January 20, 2014

redOrbit Meteorologist Joshua Kelly

Weather Forecast for January 20, 2014

11AM: A weak upper level trough will slide through the Northern Plains providing some light snowfall for the region. High pressure over the Northern Gulf of Mexico will keep most of the Southeast and Gulf Coast dry along with the Southern Plains. High pressure over Montana will bring another shot of cold air southward into the region. Dry weather and high fire hazards continue in the West as the drought continues.

11PM: A cold front will push across the Great Lakes this evening setting the stage for some light snowfall over the region extending southward into the Ohio River Valley. High pressure will build in over the Northern Plains bringing another shot of cold air to the region. The Southeast, Gulf Coast, Southern Plains and the entire West will be dominated by high pressure and dry conditions.

Significant Weather Threat for January 20: Dense fog this morning will impact regions along the Gulf Coast of Texas as well as the western parts of Florida. Winter storm watches are in effect from the Appalachians to the Mid-Atlantic in anticipation for heavy snowfall over the next few days. Wind chill advisories and warnings are in effect for portions of the Northeast along with parts of the Northern Plains for today and tonight. Wind advisories and warnings are in effect from Eastern Montana into the Central and Northern Plains for wind gusts approaching 40-50mph today.

Storm Outlook: Storm 1 is now impacting the Gulf of Alaska and the island chain with heavy snow, blowing spray, gusty winds and high waves along the shore. This low will slowly push east-southeastward over the next few days. Storm 2 is over the North-central Pacific bringing high winds and seas to the region. This low will also slowly move eastward over the next few days. Storm 3 is now developing over Japan and will begin to make its way east-northeastward over the next few days away from Japan.

Extended Outlook:

Day 2-6: The clipper system will push eastward. In the process it will develop a strong low pressure center just off the Mid-Atlantic coast which will set the stage for a significant winter storm along the I-95 region from DC to Boston. Some places will see snow in the 4-9 inch range. A strong arctic high will build in behind the storm over the Plains and the Western Lakes bringing very cold air to the region along with wind chills approaching the -40F range. High pressure over the West will keep the region dry and mild again with high fire dangers in place. On day three the storm system will move up into Southeast Canada leaving a few snow showers over Maine. High pressure will settle in over the Gulf Coast bringing another round of cold weather to the region, while a weak upper level feature develops over the Rockies bringing a small swath of snowfall over the Rockies and Northern Plains. Another Arctic high around 1046mb will slide into the Northern Plains bringing more cold air to the region. The Western US will remain dry and warm again. On day four the week upper level trough will slide into Texas and extend across the LA-MS Gulf Coast. This feature will be coming in over very cold air and could provide some wintery precipitation from Houston, Texas to Mobile, Alabama. The Arctic high will slide into the Central Plains bringing more cold air southward, while high pressure dominates both the West and East Coasts. The period will finish with another clipper system moving over the Plains and Great Lakes bringing more snowfall to the regions. High pressure will settle in over the Gulf Coast and Southeast US bringing another shot of very cold air with temps falling into the teens again all the way to the Gulf Coast possibly. High pressure will keep the West dry.

Day 7-11: The period will start with high pressure along the Eastern US, while another strong high pressure slams into the Northern Plains bringing more cold air. A weak frontal boundary will be in place over the Gulf Coast bringing a few light showers to the region and high pressure will again dominate the West. On day eight another clipper system will slide through the Northern Plains bringing more light snowfall to the region. By day ten a fast moving cold front will push through the Pacific Northwest bringing some light rainfall to the region. This will then push into the Northern Plains bringing light snowfall to the region.

Day 12-16: The period will start with another weak storm system moving through the Gulf Coast and Southeast bringing showers to the region, while another storm enters the Pacific Northwest. The period will finish with a major winter storm impacting areas from Texas to the East Coast along with the Gulf Coast and Southeast. Yet another powerful high pressure will slide into the Plains bringing some very cold weather to the region and will enhance snowfall potentials.


Source: redOrbit Meteorologist Joshua Kelly

Big Story Weather  January 20 2014


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