Saturday, April 16, 2011

4/16/11: Saturday's Weather Report

Issued at 5:18 PM CDT, Saturday, April 16th, 2011

Snowfall report for Friday-Saturday, April 15th-16th, 2011.  Source:  NWS Duluth, MN.

Chisholm, MN (St. Louis county)  8.0"
15 miles north of Grand Rapids, MN (Itasca county)  6.5"
Nashwauk, MN (Itasca county)  6.1"
Hackensack, MN (Cass county)  6.0"
International Falls, MN (Koochiching county)  5.2"
2 miles south of Tower, MN (St. Louis county)  5.0"
Dixon Lake, MN (Itasca county)  5.0"
3 miles east of Orr, MN (St. Louis county)  5.0"
Cook, MN (St. Louis county)  4.5"
Northome, MN (Koochiching county)  4.4"
Togo, MN (Itasca county)  4.0"
Embarrass, MN (St. Louis county)  3.5"
Cotton, MN (St. Louis county)  3.5"
Silver Bay, MN (Lake county)  2.8"
7 miles northwest of Two Harbors, MN (Lake county)  2.6"
3 miles north of Brainerd, MN (Crow Wing county)  2.5"
Saginaw, MN (St. Louis county)  2.5"
3 miles east of Wright, MN (Carlton county)  2.1"

6 miles northwest of Duluth, MN (St. Louis county)  3.0" measured at the NWS.

Tropical Storm force winds batter the Twin Ports on Friday, April 15th, 2011.  Source:  NWS Duluth, MN.

Pier 20, Duluth Harbor:  64 mph at 6:24 PM CDT.
Blatnik Bridge:  58 mph at 7:00 PM CDT.
Near Lift Bridge:  51 mph at 6:18 PM CDT.
Sky Harbor Airport:  51 mph at 6:53 PM CDT.
Park Point:  50 mph at 3:45 PM CDT.
Duluth International Airport:  49 mph at 5:01 PM CDT
Cloquet Airport:  47 mph at 4:15 PM CDT.
Two Harbors Airport:  45 mph at 7:53 PM CDT.

Major tornado outbreak during the past 3 days from the Central Plains to the Southeast-Eastern U.S.  Source:  SPC.

Thursday, April 14th, 2011:  22 tornado reports.
Friday, April 15th, 2011:  100 tornado reports.
Saturday, April 16th, 2011:  42 tornado reports thru 4 PM CDT.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

Today's Weather:

Strong low pressure of 991mb has moved into Northeast Lake Michigan This Afternoon.  Widespread snow or mixed precipitation tapered off from south to north This Afternoon.  Spotty instability snow and sleet showers developed This Afternoon behind the low in an area of cold air aloft with 500mb temperatures of -25 to -30 degrees C per RUC model analysis.  Highs Today were only in the upper 20s to middle 30s with northwesterly winds at 10-25 mph with higher gusts.

Tonight:

Low pressure will deepen to around 987mb as it heads into Eastern Lake Superior.  Scattered snow and sleet showers will end This Evening, not expecting any further accumulation due to the quick moving nature of these showers, but expect reduced visibilities to around a mile as these showers move through.  Lows Tonight will be in the teens and 20s with partly-mostly cloudy skies.  Winds will be ou tof the north or west at 10-20 mph with some higher gusts.

Sunday and Sunday Night:

Partly-mostly cloudy skies can be expected during this period with high pressure passing through the Upper Midwest.  Highs Tomorrow will be in the 30s and lower 40s with lows Sunday Night mainly in the 20s.  North or northwest winds Tomorrow will become east Tomorrow Night, wind speeds will be under 20 mph.

Extended Forecast:

A weak disturbance will move across the area on Monday and could bring some snow or rain showers to our area.  Highs Monday will be in the 30s to around 40 with lows Monday Night in the 20s.  The next storm moving into the Southern/Central Plains on Monday will head toward the Central-Eastern Great Lakes by mid-week.  Computer models are not in very good agreement on the track, intensity, and timing of this storm so it remains to be seen if it will impact our area or not.  If it does come far enough north, then another round of gusty winds, snow and or rain would occur for portions of our area from late Tuesday into Wednesday.  Highs on Tuesday will be in the 30s to lower 40s with lows Tuesday Night in the 20s.

5 Day Forecast for Duluth/Superior

.Tonight...  Scattered snow showers This Evening.  Partly to mostly cloudy.  Low 22 to 27.  Wind northwest at 10 to 20 mph with some higher gusts.

.Sunday...  Partly sunny.  High 38 to 43.  Wind northwest at 10 to 20 mph.

.Sunday Night...  Partly to mostly cloudy.  Low 25 to 30.  Wind becoming east to northeast at 5 to 15 mph.

.Monday...  Mostly cloudy.  Snow showers or flurries possible.  High 35 to 40.

.Monday Night...  Mostly cloudy.  Low 27 to 32.

.Tuesday...  Mostly cloudy.  High 35 to 40.

.Tuesday Night...  Mostly cloudy.  Low 25 to 30.

.Wednesday...  Partly sunny.  High 37 to 42.

Normal temperatures for Tomorrow:

High:  50
Low:  30

Sunrise Tomorrow:  6:18 AM CDT
Sunset Tomorrow:   8:00 PM CDT

Tim