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Feb. 19th-22nd Winter Storm Part 2


wisconsinwx

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Whoever is south of the front, be prepared for temps rising faster and farther than progged. It gets quite warm aloft and given LL wind fields, I have to think some of that is going to try to mix down.

edit: Looks like the offices are trying to account for this. Still might not be enough.

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Every tick North on the NAM could mean more Ice for the Detroit Area. Ice up to if not more north of M59. Lets hope for more snow or sleet. Dont know too many folks who root for ice storms :gun_bandana:

Nearly all of Detroit metro goes plain rain on this run by the looks of it with the ice along and north of i69 transitioning towards snow in the thumb. Even Grand Rapids changes over to plain rain i think.

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With the ice storm potential and the uncertainty, I doubt it. That's assuming they maintain the watch and don't start upgrading.

?

Most of the models are coming to a general agreement to a northern shift in track? The NAM placing that heavy axis just north of Flint. Yea its the NAM 18z but.....

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Whoever is south of the front, be prepared for temps rising faster and farther than progged. It gets quite warm aloft and given LL wind fields, I have to think some of that is going to try to mix down.

edit: Looks like the offices are trying to account for this. Still might not be enough.

Yeah there's gonna be a dramatic temp contrast to be sure over Illinois and Iowa. I think far southeast Iowa may have another shot at 70, while northern Iowa gets a potentially damaging ice storm.

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Setting my SmartModel to hourly runs now, for selected cities to see how the values are trending. Just looking at 19Z output. Still showing the heaviest snow locations Oshkosh, Minneapolis, LaCrosse. Still been holding steady for around 15" of snow, with a period of 1.5 to 1.8" snow rates per hour. Starting to hint at FZRA for Madison and Milwaukee areas with 6-10" snow and .5" of Ice potential.

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?

Most of the models are coming to a general agreement to a northern shift in track? The NAM placing that heavy axis just north of Flint. Yea its the NAM 18z but.....

EURO and GGEM were still colder. Not that it's infallible, but when the EURO speaks, people listen. If they maintain the watch, which is already a sign of their uncertainty, I doubt they drop any counties. If they feel like upgrading with the afternoon package, then Detroit-Ann Arbor south may be going into advisories.

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EURO and GGEM were still colder. Not that it's infallible, but when the EURO speaks, people listen. If they maintain the watch, which is already a sign of their uncertainty, I doubt they drop any counties. If they feel like upgrading with the afternoon package, then Detroit-Ann Arbor south may be going into advisories.

100% agree

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Nearly all of Detroit metro goes plain rain on this run by the looks of it with the ice along and north of i69 transitioning towards snow in the thumb. Even Grand Rapids changes over to plain rain i think.

As long as the wind stays NE, I wouldn't bet on the surface temps in Detroit getting much above 32F. Maybe a degree or two for awhile. Low level cold air has a tendency to stay in place with NE surface winds and a high north of Lake Superior.

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I say up to Wayne or even Oakland. WWA looks like a long shot based on this run.

My hunch is advisories for i94 and the row of counties just north of that ( 3rd row in MI ) and warning north of there. If the 00z runs continue this trend then fully expect to see the counties along the state line to be dropped from the watch and maybe even up to i94 which may not even need a advisory. Again that is if this north trend continues.

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