North and South America
You only have to look at the warmth of yesterday whiched extended from the Desert Southwest to Ohio Valley and compare it to today over the Midwest to appreciate how impressive this turnaround has been. From Minneapolis to Wichita to St Louis to Chicago, it’s like going from early spring/fall to December in a day. We had an […]
All week and even earlier I have been beating the drum of the dramatic flip from abnormally mild or warm to below normal cold with snow for the Windy City and other points. Check out the numbers for Friday! Also check out the temperatures for Minneapolis. Bare in mind that Rochester, MN recorded it’s latest 70 on […]
We saw roughly 3 weeks of a positive AO which has allowed significant cooling over the arctic and this has also laid to the quick expanse of arctic sea ice. A positive NAO/AO in November was crucial but when looking at the ensembles and seeing how much the NAO and AO is set to tank, we […]
Arctic air returns to the Lower 48 tomorrow and will increase in coverage over the next 7 days. As this arctic air sweeps south and east bringing a sharp drop in temperatures following the abnormal mild of today and tomorrow, many ask, who where and how much snow will fall. Over the next 36 hours, as […]
While arctic air will dive into the heart of the country late this week, unlike the last cold surge, this time around it’s going all the way to the Atlantic coast and that means the Big Cities. The last outbreak spared the big cities. Before the arctic air reaches the coast, later Friday and into Saturday will see a […]
Thought I would use Chicago as a good example of the wild temperature swing we are about to see across the heartland of the US over the next 72 hours. While a howlling Pacific flow warms the majority of the country with unseasonably mild air with many rising Wed and Thursday to between 15-25, locally […]
After what was a record dry and quiet spell, it seems the Pacific Northwest is catching up with the typical wet and stormy weather their so often use to during fall. In the past week, a sharp and large-scale pattern shift has meant to long awaited return of wet and stormy weather to Washington and Oregon extending south […]
The pattern has flipped around across the hemisphere with mid-latitude amplification flattening out with the NAO/AO going positive but as a result, rather than dealing with unseasonable cold and snow, the storm train off the Pacific has cranked into high gear for the Pacific Northwest following a record dry spell. If you live in the […]
Check out these 500 mb geopotential height charts off the GFS ensemble. More food for thought and something to wet the taste buds! Chese charts again reiterate what has been said time and time again but when I look at these and see them starting to show the ideas I’ve had since September, I admit I am getting excited. This also […]
The Pacific jet has significantly strenghened over the past few days and over the next 7 days, we will see one storm after the other slam the Pacific Northwest but this unsettled weather with wind, rain, surf and mountain snows, extends down the coast. Expect soaking rains down through San Francisco and likely even Los Angeles. As […]
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