Today's going to be another pretty awful day in terms of weather in the United States.
This is the severe storm and tornado forecast map for today with the orange and especially red areas the biggest risk areas... |
Tomorrow won't be much better with severe weather and tornadoes possible as far north as northern Michigan.
Here in Vermont, once again, we're in for very changeable, inclement and occasionally downright stormy weather. But our lucky charms are holding. We shouldn't see anything extreme or super dangerous.
.......And this is the severe weather map ahead of last Friday's tornadoes. See any similarities? |
I'm struck by how the big trouble spots today are exactly the same as Friday.
The first one is in Iowa and western Illinois, which were hit hard on Friday. This time, supercells are again expected to develop this afternoon. Some of them will produce gigantic hail and tornadoes. A couple tornadoes could be quite strong, as they were Friday. The threat will continue well into the evening.
The second big trouble spot is in Arkansas and southern Missouri. Again, much of this area was hit hard by strong tornadoes on Friday.
In one respect this new potential outbreak could be worse. The strongest supercells and tornadoes are expected to roar to life overnight tonight. As I've said previously, late night tornadoes are often more deadly because they catch people unaware as they are sleeping, or it's too dark to see visual cues of oncoming trouble.
Tomorrow looks bad, too. The threat of tornadoes and intense thunderstorms will extend from near Memphis, all the way to central and northern Michigan, southern Ontario and western New York.
Some of this seems awfully far north and east for this early in the season. But it has happened before, most notably in the Super Outbreak of April 3-4, 1974. That was easily among the worst tornado swarms in U.S .history. I don't think this one will be quite as bad as the 1974 storms, but you never know.
Also today and tonight, a blizzard will rage from northeastern Wyoming through the Dakotas into northwestern Minnesota. Hot, dry winds gusting to 70 mph will hit areas from New Mexico to Kansas, raising the risk of dust storms and wildfires
VERMONT EFFECTS
A weak cold front dropped through Vermont yesterday and stalled in southern parts of the state. This thing will turn into a warm front attached to the parent storm that will gradually work northward.
Meantime, cold air is draining southward from high pressure way up in Quebec. Above that shallow layer of chilly air near the surface, the big storm will create a big punch of warm, very wet air high overhead.
The result, at least near the Canadian border and eastern Vermont north of White River Junction is the risk of freezing rain.
The risk will be highest in northern New York and maybe the northwestern tip of Vermont tomorrow morning. Then it will shift to the Northeast Kingdom late tomorrow and tomorrow night.
Temperatures will be touch and go, so the freezing rain might be spotty. Most of any trouble on the roads would be rural stretches that are untreated, and bridges and overpasses. There won't be enough ice to damage trees, except possibly in the far northeastern corner of Vermont Wednesday night.
The Champlain Valley and southern Vermont will just have mostly bouts of rain with this. There could be a hint of snow or sleet at the onset of all this tomorrow, And maybe even a rumble of thunder Wednesday or Wednesday night because the warm, humid air high above has quite an unstable layer.
The storm's cold front will come through Thursday with more showers and maybe rumbles of thunder. We get another cold-ish shot Friday and Saturday, followed by a nice long breath of spring starting Sunday and continuing into next week.
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