Winter storm warning now includes metro: 3″ to 6″+?
**A late southward shift in our powerful hybrid winter-spring storm has placed the Twin Cities metro in the potential heavy snow band overnight and Wednesday.
**I now expect the heavy snow band to shift south, and include much of the Twin Cities metro. Winter storm warnings have now been expanded to include the Twin Cities metro.
Winter storm warnings now include metro. (Click to enlarge)
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**Expect wind driven heavy snowfall to commence after midnight, and continue through noon Wednesday.
**Travel will become increasingly difficult overnight, and I expect a major rush hour nightmare Wednesday morning with heavy snowfall in progress.
**The latest models runs tonight are indicating there could be 12 to 15 hours of snow between midnight and 3pm Wednesday.
**The 0Z (Tuesday evening) model runs are projecting some incredible snowfall totals now fo the metro. The NAM is cranking out 14.6" for MSP Airport. The GFS as much as 20". While these numbers may be too high, I now believe there is a decent chance of 3" to 6+" of snowfall in the Twin Cites by late Wednesday, with the highest totals in the north metro.
** There is one potential limiting factor to snowfall totals. A dry slot is working through the south metro on radar. If it lingers in place snowfall totals may be reduced. If the snow shifts south as expected, snowfall totals will increase.
NAM: Heavy snow band shifts south to include Twin Cities.
Potential for 10" in metro?? (Click to enlarge)
Bottom line: This is a drastic change and southward shift in the heavy snow band. Be prepared for a major winter storm in the metro overnight through most of Wednesday.
Expect heavy snow, northeast winds with blowing snow, and possible thundersnow. There may be a big snowfall gradient from south (lighter) to north (heavier) across the metro. Latest indications are a range of 3" to 6"+ may fall from south to north across the metro by Wednesday evening.
-Latest Twin Cities radar loop
I'll have the latest updates on Morning Edition with Cathy Wurzer starting at 7:45am.
Tornadoes slam Iowa:
As many as 15 tornadoes may have touched down in Iowa Tuesday on the warmer (and more violent) side of this storm.
Here are the preliminary reports form SPC.
PH