Chilly temperatures continue into midweek; few snow showers tonight and Tuesday

A tremendous amount of cold air has moved into the Northland today with 500mb temperatures as low as -40 to -41C this afternoon!

You throw in some warmer air near the surface thanks to some sun, mix it with all the cold air above us, combine that with steep low and mid level lapse rates and you get an explosion of scattered snow showers and snow squalls in parts of the Northland this afternoon.

Source: https://www.spc.noaa.gov/

The cold air mass over the region today will stick around the next few days with some moderation expected by later this week.

A powerful storm continues to move NE today as it heads into eastern Canada.

Source: Goes-16 water vapor imagery 4.13.2020; https://weather.cod.edu/

Cold, cyclonic flow in wake of Sunday’s winter storm has produced a widespread cumulus (CU) field across the Northland today, shows up nicely on Goes-16 visible imagery.

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A major late season winter storm hit portions of the upper Midwest and Great Lakes on Easter Sunday, here’s how much snow fell over the past 24 hours.

Source: https://www.pivotalweather.com/

This was my final snowfall forecast for Sunday’s winter storm.

Overall not too bad, although I was too high with snow amounts in the Arrowhead of Minnesota.

…Snowfall Reports from around the Northland…

Event Date: April 12-13, 2020

Source: https://www.weather.gov/dlh/

Gile, WI: 16.0″
3 NNW Butternut, WI: 10.5″
Glidden, WI: 8.0″
3 SW Bayfield, WI: 7.0″
Butternut, WI: 7.0″
3 WNW Clam Lake, WI: 5.8″
2 NW Stone, Lake, WI: 4.6″
1 E Loretta, WI: 4.5″
2 NW Washburn, WI: 4.5″
1 SW Hayward, WI: 3.8″
3 W Stanberry, WI: 3.5″
4 NNW New Post, WI: 3.3″
1 E Spooner, WI: 2.3″
4 ENE Cornucopia, WI: 2.2″
3 S Ashland, WI: 2.2″
9 SSW Namekagon, WI: 2.0″
5 S Herbster, WI: 2.0″
1 W Silver Bay, MN: 0.5″
5 WSW Solon Springs, WI: 0.5″
3 WSW Grand Marais, MN: 0.3″
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The other big weather story on Sunday was the severe weather and tornado outbreak which hit the southeast US.

*54 preliminary tornado reports on Sunday (red dots on map)

*459 preliminary wind damage reports (blue dots) and 33 reports of large hail (green dots)

*The death toll from Sunday’s tornado outbreak has risen to 32 as of Monday afternoon. Source: https://weather.com/

*At least 11 deaths reported in Mississippi, 9 deaths reported in South Carolina and 7 deaths reported near the Georgia-Tennessee border per update from TWC.

Source: https://www.spc.noaa.gov/

Severe weather continued today, but farther east compared to where it was on Sunday.

*108 preliminary severe weather reports today with 10 tornado reports and 95 reports of wind damage.

The radar signature of one of the tornadoes in Mississippi late Sunday afternoon was both amazing and terrifying!

The couplet (red/green) ENE of Bassfield, MS was ridiculous!

…Weather Summary…

Our weather won’t be changing a whole lot through midweek.

Clouds and scattered snow showers will continue tonight and Tuesday, some of these snow showers will be heavy for brief periods of time with a quick coating to an inch of snow accumulation in spots, in between these showers will be some partial clearing.

Lows tonight and Tuesday night will be in the single digits, teens and 20s with highs Tuesday in the middle 20s to lower 30s, highs on Wednesday will mainly be in the 30s. Note: Normal highs around here in mid-April are right around 50 degrees!

Northwest winds will continue through Wednesday with gusts to around 25 mph tonight and Tuesday.

Note: Temperatures look to get back closer to normal by this weekend with a chance for 50+ degree temps on Saturday, but we could also be dealing with a few rain showers sometime this weekend.

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Forecast for Duluth and Superior

.Tonight… Blustery. Scattered snow showers mainly this evening. Partly to mostly cloudy. Low 12 to 17. Wind northwest 10 to 20 mph with higher gusts this evening.

.Tuesday… Scattered snow showers. Partly to mostly cloudy. High 26 to 31. Wind northwest 10 to 20 mph.

.Wednesday… Partly to mostly cloudy. High 32 to 37. Wind northwest 10 to 20 mph.

Normal temperatures for April 14

High 49
Low 29

Sunrise Tuesday 6:22 AM CDT
Sunset Tuesday 7:57 PM CDT

Thanks for reading!

Tim

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