Warm Overnight / High Heat Index/Storms Late

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The temperature at 8am was 78 degrees. In fact…the lows stayed right around 80 all night.

Here is the hour-by-hour observation from the NWS for Des Moines.

a
t
e
Time
(cdt)
Wind
(mph)
Vis.
(mi.)
Weather Sky Cond. Temperature (ºF) Pressure Precipitation (in.)
Air Dwpt 6 hour altimeter
(in.)
sea level
(mb)
1 hr 3 hr 6 hr
Max. Min.
27 06:54 SW 8 10.00 Overcast FEW040 SCT090 BKN140 BKN200 OVC250 79 71 83 79 29.78 1007.2
27 05:54 S 8 10.00 Overcast FEW160 SCT200 OVC250 79 71 29.76 1006.5
27 04:54 S 6 10.00 Overcast OVC200 79 72 29.74 1006.0
27 03:54 S 10 10.00 Mostly Cloudy BKN250 81 73 29.75 1006.1
27 02:54 S 9 10.00 Overcast OVC250 81 74 29.76 1006.6
27 01:54 SE 6 10.00 Overcast OVC250 82 75 29.79 1007.7
27 00:54 SE 9 10.00 Fair CLR 83 75 91 83 29.77 1007.0
26 23:54 SE 6 10.00 Fair CLR 83 77 29.78 1007.3
26 22:54 SE 8 10.00 Fair CLR 84 77 29.77 1007.1
26 21:54 SE 8 10.00 A Few Clouds FEW060 85 77 29.76 1006.7
26 20:54 E 8 10.00 A Few Clouds FEW050 88 77 29.76 1006.7

This is going to mean some very warm heat index temperatures this afternoon. We could top out around 110 for the “feels like” conditions later today.

There were a few showers and isolated storms in western IA this morning…but they did not have a punch for central Iowa.

This also will be the 13th straight day of 90 or warmer for the high in Des Moines. The record is 25…set during the dust bowl era…1936.

There is a chance for severe weather later today and again tomorrow. The slight risk areas are highlighted in yellow.

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