Warm Overnight / High Heat Index/Storms Late

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.