The main forecast concern for the weekend will be the threat for severe weather Saturday. Comparing Saturday's set up to previous severe outbreaks shows a high probability of significant severe weather that includes tornadoes, destructive hail, and damaging winds.
Those planning on biking Saturday afternoon/evening need to have a way to stay alert of changing weather conditions. Sunday looks like a better day to put some mileage on the bike.
The National Weather Service Storm Prediction Center has the Twin Cities within an "enhanced" risk of severe thunderstorms. This means numerous severe thunderstorms are likely to develop. Saturday morning t-storms will play a factor in the evolution of severe t-storms by the afternoon/evening. Supercell storms are a given. But whether they will be tornadic supercells or a combination of large hail and damaging winds remains a question. Those participating in the Lutsen 99er will be literally racing to the finish to try a beat out the approaching storms from the west.
What is interesting to note is that when looking at the weather pattern for Saturday in comparison to past severe weather outbreaks it is very similar to the June 17, 2010 tornado outbreak in Minnesota.
So far this season Minnesota has experience 19 confirmed tornadoes. The Twin Cities National Weather Service has issued 20 tornado warnings since the first of the year.
Conditions cool down next week. Much more comfortable air in place for biking with highs in the 70s Monday through Wednesday. Long range models hint at 80s for the 4th of July.
Summer brings warm afternoons perfect for biking, but the summer heat and humidity can also spark thunderstorms and severe weather. Be prepared for any type of adverse weather headed your way with Aeris Pulse.
NWS Twin Cities Weather Story