From showery to steamy; excessive heat watch Wednesday
It's that time of the year where the forecast usually includes words like hot, steamy, and stormy. We'll get a little of all three in the next few days.
Morning thunderstorms in western Minnesota fade in intensity as they slide east toward the Twin Cities.
The National Oceanic and Atmospheric Administration's High-Resolution Rapid Refresh model shows the storm cluster fading as it reaches the Twin Cities Tuesday.
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A hot, muggy air mass builds into Minnesota Wednesday. You'll notice the dew points on the rise once again. Dew points soar into the 70s, and a pool of dew points may approach the ungodly 80-degree mark just west of the Twin Cities by 5 p.m. Friday. Is schwitz still a word?
Excessive heat watch
The combination of highs in the 90s and dew points well into the 70s make it feel more Guam than Golden Valley Wednesday. Heat index values will top 100 degrees Wednesday afternoon.
An excessive heat watch is up for Wednesday. Excessive seems like the right word. You may hear other, four-letter words used as well.
402 AM CDT Tue Jul 10 2018
...EXCESSIVE HEAT WATCH IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING...
The National Weather Service in Twin Cities/Chanhassen has issued
an Excessive Heat Watch, which is in effect from Wednesday
afternoon through Wednesday evening.
* TEMPERATURE...Highs in the low to mid 90s with dew points in the
mid 70s will produce heat indices as high as 105 Wednesday
afternoon.
* IMPACTS...Heat illnesses are possible for those active outdoors
or those susceptible to heat illnesses, such as children and the
elderly.
Severe risk too
The fuel for severe storms is there. The risk favors northern half of Minnesota Wednesday, then sags south toward the Twin Cities Wednesday night into Thursday.
Free AC next week
The longer range models continue to suggest a fresh Canadian air mass next week. Highs in the 70s to near 80 with dew points in the 40s and 50s will feel mighty nice.
Stay tuned.