Excessive Heat Warning issued: Oh joy!
Our Heat Advisory has been upgraded to an Excessive Heat Warning through Sunday. A massive area from Missouri to Wisconsin and over to the Dakotas are now under the warning (shown in a purplish color on the map):
Friday and Saturday are expected to be the hottest in Southeast Missouri, as temperatures rise into the upper 70s with ridiculous humidity levels. This will push the heat index to nearly 110.
We should see a "cooldown" on Tuesday as high temperatures "only" reach the low 90s. Looking at the forecast charts, here's a summary of how the heat wave should unfold at Cape Girardeau:
In their morning discussion, the forecasters at NWS Paducah wrote:
IT IS BECOMING MORE APPARENT THAT THE BIGGEST HEAT WAVE OF THE SEASON IS ABOUT TO HIT THE REGION AS MID LEVEL HIGH PRESSURE REMAINS ANCHORED OVER THE CENTRAL PLAINS, AND EVEN BEGINS TO EXPAND FURTHER EAST AS WE GET INTO THE WEEKEND. SFC TEMPS ARE EXPECTED TO RISE INTO THE UPPER HALF OF THE 90S BY FRI/SAT AND MUGGY DEW POINTS IN THE MID 70S SHOULD PERSIST. EXPECTING SEVERAL CONSECUTIVE DAYS WHERE THE HEAT INDEX WILL LIKELY TOP 105 DEGREES FOR A AROUND 9 STRAIGHT HOURS (10 AM - 7 PM). TEMPS LATE AT NIGHT WILL COOL ONLY INTO THE UPPER HALF OF THE 70S AT MANY LOCATIONS.
Unfortunately, the medium range 8-14 Day Outlook continues to lean toward above-average temperatures, but likely not the intense heat wave we have now.
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