/Issued 5:49 PM CDT, Tuesday, September 5, 2017/
12z HRRRX model run from September 5, valid for late Wednesday morning (11 AM)
5 PM AST advisory for Hurricane Irma
Location: About 130 miles east of Antigua; About 135 miles east-southeast of Barbuda.
Maximum sustained wind: 185 mph.
Present movement: West at 15 mph
Minimum central pressure: 27.35 inches or 926 mb
Note: Irma has become only the 5th Atlantic basin hurricane with a peak wind speed of 160 knots or higher. The others are — Allen (1980), the Labor Day Hurricane of 1935, Gilbert (1988), and Wilma (2005)
Visible satellite image from late this morning, September 5, 2017. Wildfires/Smoke ongoing over the western U.S. while Category 5 Hurricane Irma heads west toward the northern Leeward Islands later tonight-Wednesday morning — In between, a taste of fall weather occurring over the upper Midwest and western Great Lakes on this 5th day of September, 2017.
Upper low to our east with high pressure to our west resulting in a north/northwest flow across the upper Midwest today. Very cool early September temperatures in our area this afternoon with highs ranging from 50 to 55 degrees although Brainerd managed to climb to 60 degrees, but even that is still well below average for early September. Partly sunny to mostly cloudy skies were common today with a few showers affecting parts of the area.
A cool weather pattern will continue for the next few days. Will have partly to mostly cloudy skies tonight and Wednesday. Spotty showers will continue as well through Wednesday with some lake effect rain potential for the South Shore of Lake Superior as cool temps and north winds blow over the warmer waters over the lake.
Lows tonight will be in the 40s with 30s in the typical cold spots while temperatures close to Lake Superior struggle to get below 50 degrees. Highs Wednesday ranging from around 50 to 60 degrees (Fairly similar to today)
A low pressure system dropping south/southeast from Manitoba Province could bring some rain showers to the Northland on Thursday but after that it still looks like will have a few days of dry weather (If you can believe that one) Not much warmth, however, with highs Thursday in the 50s to lower 60s. Friday’s highs are forecast to be in the 60s.
Note: There is a chance will warm into the 70s in northeast Minnesota and northwest Wisconsin from September 10-13 as winds swing around to the south. Will see if that trend continues to show up on the computer models in coming days.
Today’s high of 56 F at the Duluth Airport ties with 1888 for 3rd coldest high temperature on record for September 5th — See top 5 list below.
1: 52 degrees set in 1904
2: 54 degrees set in 1926
3: 56 degrees set in 2017 and 1888
4: 57 degrees set in 1958, 1956, 1951, 1914 and 1902
5: 58 degrees set in 1965, 1949, 1911 and 1910
Today’s high of 57 degrees at International Falls, Minnesota ties with 1958 and previous years for 4th coldest high temperature on record for September 5th — See top 5 list below.
1: 53 degrees set in 1965
2: 54 degrees set in 1977
3: 56 degrees set in 1956 and 1952
4: 57 degrees set in 2017, 1958, 1949 and 1898
5: 58 degrees set in 1999, 1993, 1986 and 1926
Forecast for Duluth and Superior
.Tonight… Partly to mostly cloudy. A few showers possible this evening. Breezy. Low 44 to 49. Wind northwest at 10 to 20 mph.
.Wednesday… Partly to mostly cloudy. High 57 to 62. Wind northwest at 10 to 20 mph.
.Thursday… Mostly cloudy. Showers possible. High 55 to 60. Wind east at 10 to 15 mph.
Normal temperatures for Wednesday
Sunrise Wednesday: 6:35 AM CDT
Sunset Wednesday: 7:38 PM CDT