LATE AUGUST EXTREME PLAINS-GREAT LAKES HEAT WAVE WILL GET VERY CLOSE…….
Smoke from western & Plains fires has given our clear sky a pale, hazy appearance today. The sunset will be golden, bronzy & smokey this evening.
An extreme, record-breaking heat wave from Montana to Minnesota & North Dakota to Iowa to Nebraska & Kansas to even Wisconsin & northern Illinois to the Northeast U.S. will bring widespread 100s & 90s to end this week & head into the weekend. Temperatures today were as high as 108 in Nebraska & will be as high as 102 in Iowa & Wisconsin to end the week & up into the upper 90s to 100 in the northeast by the weekend. Boston may see 98 & even Cleveland, Ohio may see 97. Today, 100 occurred in Wyoming to Utah. High to Extreme Fire Danger covers 10 states.
If not for Isaac, record heat would likely move into our area & 98-100 would be attainable. 105 would be likely if the soils were much drier & vegetation less lush from the ample August rainfall. Mid 90s will be the highest we will do as clouds from the Isaac circulation move northward to end the week. 90s will still be very hot, but this significant heat wave to end August will set up with 97-108 just to our north, west & northwest.
TROPICAL DEPRESSION ISAAC WILL MOVE OVER OUR AREA……..
After 90s, highs around 78 are likely for the weekend with the main wave of rainfall on the right side of Isaac’s center with stiff winds at 20-25 mph. This would tend to pass Saturday. Low temperatures will only be around 71, as a tropical, water-logged atmosphere will exist.
As the actual center of Isaac passes overhead, it will tend to be more showery with diminishing winds. This would tend to occur Sunday.
1-3″ of rainfall looks likely area-wide. Isolated 4″ amounts are possible.