October 10, 2018, will go down in the weather books as one of the most intense weather days I can remember. The lakeshore flood event in Duluth is significant. And the final storm impacts from Hurricane Michael are still unfolding in Florida and Georgia.
Here’s a preliminary wrap on what we know so far about an active day in the atmosphere over the U.S.
Duluth lakeshore flood
Sustained northeast winds with gust as high as 86 mph drove pounding waves ashore in Duluth.
- 3 SE Castle Danger [Lsz143 Co, MN] SHIP reports NON-TSTM WND GST of M86 MPH at 12:30 AM CDT — THE FREIGHTER ALGOWOOD REPORTED WIND GUSTS TO AS HIGH AS 75 KNOTS (86 MPH) A LITTLE AFTER MIDNIGHT.
The resulting storm surge pushed water into unusual places. MPR News reporters Andrew Krueger and Dan Kraker reported on the unfolding damage from close range. Sometimes from too close range.
Well, this just happened. I’m fine, just a little wet. Thank goodness for good rain gear. A good reminder of the power of Lake Superior – and to always have an escape route to safety (even if it’s an unplanned water slide into a Canal Park parking lot) #duluth #mnwx pic.twitter.com/bEabEImb7v
— Andrew Krueger (@akpix) October 10, 2018
Water poured into the streets of Duluth near the lakefront.
— Andrew Krueger (@akpix) October 10, 2018
Numerous flood reports rolled into the Duluth NWS office.
- 1 E Duluth [St. Louis Co, MN] NWS EMPLOYEE reports LAKESHORE FLOOD at 6:30 AM CDT — DULUTH SHIPPING CHANNEL LIGHTHOUSE AND PIER FLOODING AND MORSE STREET IN CANAL PARK FLOODING.
- 1 E Duluth [St. Louis Co, MN] PUBLIC reports LAKESHORE FLOOD at 10:06 AM CDT — WATER COVERING THE ROADWAY ON HARBOR DRIVE NEAR THE DECC.
- 2 SSW Gary NEW Duluth [St. Louis Co, MN] PUBLIC reports LAKESHORE FLOOD at 8:00 AM CDT — FLOODING ALONG THE ST. LOUIS RIVER NEAR BOY SCOUT LANDING, PORTIONS OF RIVER PLACE CAMPGROUND UNDER WATER.
Holy buckets! Here’s a look at some flooded roads right behind the DECC this morning. Be careful out there! pic.twitter.com/3QFWfNyg8w
— Briggs LeSavage (@briggslesavage) October 10, 2018
1-foot storm surge
A check of NOAA’sDuluth harbor buoy shows a 1-foot rise in the water level of Lake Superior today compared to yesterday. That’s essentially a wind-driven, 1-foot storm surge.
#Duluth Storm Surge: The water level at NOAA buoy 9099064 in Duluth harbor is up 1-foot since yesterday. That's essentially a 1-foot storm surge. Throw wind gusts to 86 mph and 14 to 20-foot waves on top of that and you can see why there's flood damage. #mnwx pic.twitter.com/85EMDaqmAl
— MPR Weather (@MPRweather) October 10, 2018
Heavy snow up north
Yes, it’s been oppressively dismal, gray, and wet in the Twin Cities. But it could be worse. More than a foot of snow has fallen in parts of eastern North Dakota.
- 3 S Valley City [Barnes Co, ND] PUBLIC reports HEAVY SNOW of 13.00 INCH at 2:00 PM CDT — REPORT RECEIVED VIA BROADCAST MEDIA.
- 8 W Hope [Steele Co, ND] COCORAHS reports SNOW of 14.20 INCH at 6:11 PM CDT — UPDATE FROM EARLIER REPORT WITH 1.24 LIQUID
Near-blizzard conditions are reported in the Red River Valley. Winds have gusted to 40 mph with blowing snow and visibility at or under 1/4 mile. A winter storm warning is up until 1 am.
Including the cities of Lakota, Mcville, Aneta, Tolna,
Grand Forks, Cooperstown, Finley, Hope, Mayville, Hillsboro,
Hatton, Portland, Valley City, and Fargo
318 PM CDT Wed Oct 10 2018
…WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 AM CDT
* WHAT…Heavy snow. Additional snow accumulations of 2 to 4
inches are expected. Storm total snowfall will range from
6 to 12 inches.
* WHERE…Portions of northeast and southeast North Dakota.
* WHEN…Until 1 AM CDT Thursday.
* ADDITIONAL DETAILS…Plan on difficult travel conditions,
including during the evening commute. Expect significant
reductions in visibility at times.
Northern Minnesota snow
Snow continues overnight in northern Minnesota. Several inches will pile up into a plowable mess.
Much colder air pours south into the Twin Cities overnight into Thursday. I still think the Twin Cities may hit 32-degrees in the next few mornings. There are still rays of hope that we may recover into the 60s late next week.
Hurricane Michael: 3rd strongest ever to hit the U.S.
The scenes as Hurricane Michael ripped through the Florida coast at landfall measured up as advertised.
A look at what houses in #Mexico Beach, #Florida look like right now. This is a follow up from the previous clip posted. They are now submerged and were no match for #HurricaneMichael (via Tessa Talarico) #Hurricane #Michael #HurricaneMichael2018 pic.twitter.com/GJENrhFJha
— Josh Benson (@WFLAJosh) October 10, 2018
Michael roared ashore with a minimum central pressure of just 919 millibars. That’s the 3rd lowest pressure for any landfalling U.S. hurricane on record.
Table of 10 strongest continental US landfalling #hurricanes on record as ranked by minimum sea level pressure at landfall. #Michael ranks 3rd with a landfall pressure of 919 hPa. pic.twitter.com/JB8o1HREqO
— Philip Klotzbach (@philklotzbach) October 10, 2018
Michael is the 4th Category 4 storm to hit the U.S. in just the past 15 months.
Michael is the fourth Category 4 hurricane to hit the U.S. in just 15 months, joining last year’s trio of Harvey, Irma, and Maria — an unprecedented string of catastrophic hurricane disasters.https://t.co/HYxsG7Q8EZ
— Eric Holthaus (@EricHolthaus) October 10, 2018
And yes, warmer than average water temperature in the Gulf of Mexico played a role in Michaels rapid intensification process.
#Michael had 155 mph winds at landfall–roundoff error from a cat 5, and the STRONGEST landfalling Atlantic hurricane on record this late in the season.
Climate change is fueling more of these monster storms: https://t.co/SWViLjOu8q https://t.co/4wqTS5Bj2O
— Michael E. Mann (@MichaelEMann) October 10, 2018