1). All snow - the lowest mile of the atmosphere definitely cold enough for snow - no changeover to rain/sleet.
2). Deformation zone axis directly above MSP: heaviest snow bands will linger over the MSP metro area through the afternoon, but snowfall rates are diminishing - the heaviest accumulations are behind us now
3). Snow will slowly decrease in intensity by late afternoon/evening, but by then many spots will have at least 8-10", a few suburbs may have closer to a foot.
4). Heavy, wet, cement-like snow will linger into mid afternoon. With temperatures close to freezing aloft: a). snowflakes are HUGE, and b). the risk of downed trees/powerlines is very high as snow continues to pile up. Consider cleaning the snow off smaller trees and shrubs.
5). Latest NAM/WRF prints out 1.2" liquid - which translates into a foot of snow. Factoring in some melting on contact and a snow:liquid ratio closer to 8:1 - you wind up with snow totals of 8-12" across most of the metro area, but less than 5" south/east of St. Paul.
Winter Storm Warnings. NOAA has more on our early snowstorm here. This may be the "Perfect Storm", coming on a Saturday, when many Minnesotans don't have to worry about a white-knuckle commute. Snow lovers finally have something to celebrate - Sunday should be ideal to get out and play in the snow.
Snowfall Reports from the National Weather Service as of 1:17 pm Saturday:
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 111 PM CST SAT NOV 13 2010 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0104 PM SNOW 3 N FOREST LAKE 45.32N 92.98W 11/13/2010 E10.0 INCH CHISAGO MN CO-OP OBSERVER SO FAR 0104 PM SNOW BLOOMINGTON 44.83N 93.32W 11/13/2010 M6.4 INCH HENNEPIN MN TRAINED SPOTTER SO FAR 0102 PM SNOW NEW HOPE 45.04N 93.39W 11/13/2010 M10.1 INCH HENNEPIN MN CO-OP OBSERVER 1248 PM SNOW BLOOMINGTON 44.83N 93.32W 11/13/2010 M7.3 INCH HENNEPIN MN TRAINED SPOTTER 1245 PM SNOW 5 NE FOREST LAKE 45.33N 92.91W 11/13/2010 M4.7 INCH CHISAGO MN CO-OP OBSERVER 1243 PM SNOW 3 NNW MINNEAPOLIS 45.00N 93.29W 11/13/2010 E9.0 INCH HENNEPIN MN TRAINED SPOTTER STORM TOTAL SO FAR 1239 PM SNOW 2 SSW CAMBRIDGE 45.54N 93.24W 11/13/2010 E6.5 INCH ISANTI MN TRAINED SPOTTER 1237 PM SNOW 1 ENE INVER GROVE HEIGH 44.83N 93.04W 11/13/2010 M3.0 INCH DAKOTA MN TRAINED SPOTTER SNOW DEPTH 8.5 1230 PM SNOW CLAYTON 45.32N 92.17W 11/13/2010 M4.0 INCH POLK WI TRAINED SPOTTER FOUR INCH BRANCH DOWN DUE TO WEIGHT OF SNOW. LIGHT SNOW STILL FALLING AT TIMES. 1155 AM SNOW EDINA 44.89N 93.36W 11/13/2010 M7.9 INCH HENNEPIN MN TRAINED SPOTTER 1155 AM SNOW BLOOMINGTON 44.83N 93.32W 11/13/2010 M5.0 INCH HENNEPIN MN NWS EMPLOYEE 5 INCHES ON THE DRIVEWAY. 7.5 INCHES OTHER SURFACES. 1135 AM SNOW HASTINGS 44.73N 92.85W 11/13/2010 M3.1 INCH DAKOTA MN TRAINED SPOTTER 1130 AM SNOW MONTGOMERY 44.44N 93.58W 11/13/2010 M10.0 INCH LE SUEUR MN CO-OP OBSERVER STILL SNOWING. 1130 AM SNOW 2 SW PRIOR LAKE 44.71N 93.46W 11/13/2010 M2.2 INCH SCOTT MN TRAINED SPOTTER STORM TOTAL 8.5 SO FAR 1115 AM SNOW 1 ENE INVER GROVE HEIGH 44.83N 93.04W 11/13/2010 M6.5 INCH DAKOTA MN TRAINED SPOTTER 1115 AM SNOW 2 ESE MINNETONKA 44.90N 93.47W 11/13/2010 M7.5 INCH HENNEPIN MN TRAINED SPOTTER