Mondays SEVERE WEATHER OUTLOOK has NO areas of strong or severe thunderstorms expected anywhere across the Nation. Mondays NATIONAL FORECAST OUTLOOK SUMMARY By: National Severe Weather Network Forecaster, David Saurer Good morning everyone, a very busy morning across the Eastern Seaboard as we are prepping up for what could become a Top-Ten Record Breaking Snowstorm pounding the Northern Mid-Atlantic and the entire Northeast / New England corridor. Very mild temperatures are in place across the Central portions of our Nation and finally, some wet weather is expected across the Desert Southwest. The main weather feature and main headline beginning our new work week is, of course, the ramping up of a clipper system that is now weakening across the Ohio valley and Central Appalachians which is giving way to a developing and yet quite a dangerous coastal low pressure near North Carolina Outer Banks. In the meantime, we are looking at a general range of two to four inches spreading across the Mid-Atlantic region with the limited moisture and decaying nature of our initial system. Now, the main feature, the upper level trough is digging across the Carolinas as we speak, this is beginning to amplify the rapid strengthening of what is to become the Record-Breaking massive winter storm. By this evening and into the overnight hours, we are expecting a coastal bomb-o-genesis to begin to the East of the Delmarva peninsula with heavy precipitation beginning to fall to the North and West of the projected track of low pressure. The difference with this system in comparison to the past system riding along the Eastern Seaboard in the access to sufficient cold air. We got it this time, an abundance of sufficient subfreezing air in the Northeast is settling over the region thanks to a pronounced surface ridge in place. This will set up the snowfall as the dominator in the precipitation department. We are seeing some pretty impressive forecast model indicating some massive moisture associated with this amplified coastal low. What we are now forecasting for the major metropolitan areas along the Eastern Seaboard from Philadelphia to Boston including New York / Long Island will be expecting an accumulation amount of 18 to as much as 24 inches of snow from Southeastern New York through Boston / Coastal New England. Where the persistent heavy bands of snow set up, we could really see some massive amounts forecast in Eastern Massachusetts where the possibility is significant we could see anywhere from 24 to 30 inches, locally up to 3 feet is possible. If the mesoscale aspect of this storm system and instability set up correctly, we will see the three feet numbers. Thundersnow is expected from this system where the heaviest bands persist. Yes, this is what we are calling a LIFE THREATENING SITUATION unfolding across the Northeast and New England region. Another main issue with this coastal surface low deepening, especially for late this evening, tightening pressure gradients around low pressure. This will set up for some very powerful winds across the entire Northeast / New England region. This is extremely concerning for us forecasters as we are seeing predictions ranging from 40 to as high as 70 miles per hour at times. This will definitely create total white out conditions with zero visibility given with the abundance amount of snowfall expected on the ground level. The National Weather Service has issued BLIZZARD WARNINGS from Southeastern New York / Northeastern New Jersey up the coastline to Northeastern Maine, this includes the metropolitan areas of New York / Long Island, Boston, Providence, and New Haven. I advise strongly to have a NOAA Weather Radio on you at all times with fresh batteries in place. Make sure to charge up all your essential electronics, cell phones, medical and etc. Also, it would be wise to pack up emergency essentials for at least three to five days of canned non-perishable food, water, clothing, first aid, and important paper work with emergency numbers and identity. Have emergency cash on hand as well. Plenty of blankets, layered clothing, and if you can, some warm gel heat pads. DO NOT ATTEMPT TO TRAVEL AT THIS TIME. It is a very dangerous situation for the roadways with major drifting expected, with dangerous blowing and drifting snow. I do expect major throughfares to CLOSED in the height of the storm event. POWER OUTAGES are very likely to persist at the height of the storm. Prepare yourself for possible days without power. STAY WARM, very essential for survival to have adequate supply of heat as possible. DO NOT RELY ON KEROSENE HEATERS, they are dangerous. Try and have plenty of firewood, if possible, if you have a fireplace in your home, make sure to practice safety at all cost. In other weather headlines, we are looking at some very warm temperatures for this time of the year across the Central portions of our Nation with the persistent downslope flow off the leeward side of the Rockies. This is promoting some serious record-breaking warmth as much as 25 to 35 degrees above the average range for this time of year. Highs are forecast to reach into the lower 70s over the Central Plains with nearing 80 or better for Southern Plains especially Central / Southern Texas. We are also expecting to watch a secondary Clipper system that will clip the Upper Great Lakes for today, only a few inches of accumulating snowfall is in the forecast given the weak nature of the storm system. Finally, we shift our attention to the Western states where an upper level low pressure anchoring a sub-tropical Eastern Pacific set up will begin to lift to our North and spreading a shield of light to moderate rainfall in the forecast for the Pacific Northwest. Snow will be rather concentrated on the highest elevations across the Sierra Nevada range.
Posted on: Mon, 26 Jan 2015 14:12:42 +0000
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