Tuesday, April 25, 2017

Rain this evening followed by a wintry mix of Sleet, Freezing Rain and Snow late tonight and Wed (Ice Storm Warning and Winter Weather Advisory in effect for parts of the Northland)

/Issued 5:12 PM CDT, Tuesday, April 25, 2017/

I tried my best to make the map below as simple as possible.

Breaking it down further:

For the Twin Ports of Duluth and Superior:  

-Rain develops this evening; Rain mixes with sleet or freezing rain on top of the hill after midnight while precipitation stays in the form of rain for locations below the hill.

-Sleet and freezing rain on top of the hill Wednesday morning with some ice and sleet accumulation expected.  Rain or sleet should transition to mainly sleet for locations below the hill Wednesday morning with some accumulation of sleet possible, as well as some light ice accumulation from freezing rain.

-Little if any snowfall accumulation is expected in the Twin Ports.

-Precipitation will begin to diminish Wednesday afternoon.

Note:  The Winter Weather Advisory for Duluth and Superior is in effect from 3 AM Wednesday til 7 PM Wednesday.

-Ice Storm Warning in far northeast Minnesota runs from 8 PM this evening til 10 PM Wednesday night.

-Winter Weather Advisory north of Duluth from 8 PM this evening til 7 PM Wednesday.

Upper midwest radar loop through 5 PM today.  Source:  http://www.intellicast.com

Goes16 Water vapor satellite image from 5:17 PM CDT, April 25, 2017.

Source:  http://weather.cod.edu/satrad/exper/

Source:  http://www.weather.gov/dlh/dlhwrf

12z WRF model (Duluth National Weather Service)

Tracking the freezing line -- Here's the temperature forecast for 7 PM this evening.

7 AM Wednesday

Second day in a row with an impressive temperature gradient!

24-hour rainfall totals through 7 AM today, April 25, 2017
Source:  http://www.weather.gov/dlh/

International Falls, MN:  0.62 in
Kabetogama, MN:  0.45 in
Northome, MN:  0.30 in
Cass Lake, MN:  0.25 in
Ely, MN 25 E:  0.20 in
Orr, MN 3 E:  0.16 in
Isle, MN 12 N:  0.14 in
Embarrass, MN:  0.11 in
Island Lake, MN 4 E:  0.08 in
Grand Marais, MN:  0.05 in

Note:  After Wednesday's system exits the Northland will be left with chilly temperatures and possibly some flurries or snow showers on Thursday -- The next big system could affect us late this weekend, during the Sunday-Monday time frame...This storm if it comes far enough north could bring a decent amount of snow and gusty winds and possibly some mixed precipitation to northeast Minnesota and northwest Wisconsin from Sunday into Monday.