Tuesday Evening Storm


Posted under Photo

This post was written by Schnack on July 10, 2013

Hot and Humid Weather Returns

UPDATED at 4:50 PM

Tonight: Clear with patchy fog late. Low: 58-60. Wind: Light.

Thursday: Sunny. High: 79-83. Wind: S 10-15 mph.

Thursday Night: Clear. Low: 59-61. Wind: S 5-10 mph.

Friday: Mostly sunny. High: mid 80s.

Saturday: Partly cloudy. High: mid 80s.

Sunday: Mostly sunny. High: mid 80s.

Monday: Partly cloudy and humid. High: upper 80s.

Tuesday: Partly cloudy and humid. High: near 90.

Wednesday: Partly cloudy and humid. High: near 90.




Posted under Forecast Discussion

This post was written by Schnack on July 10, 2013

24 Hour Rain Totals

24 hour rain totals
7 AM Tuesday to 7 AM Wednesday

Location County Rain
Waterloo Black Hawk 0.17
Dubuque Dubuque 0.30
Cedar Rapids Linn 1.10
Iowa City Johnson 0.30
Amana 4.7 W Iowa 0.71
Anamosa 3SSW, IA Jones 0.58
BELLE PLAINE, IA Benton 0.20
CASCADE, IA Dubuque 0.45
Cedar Falls 1.4 SSE Black Hawk 0.19
Cedar Rapids 3.4 NW Linn 0.79
Central City 6.7 W Linn 0.26
COLWELL, IA Floyd 0.03
CRESCO 1NE, IA Howard 0.10
Decorah 6ESE, IA Winneshiek 0.88
Decorah 7.9 ENE Winneshiek 1.20
Dubuque #3, IA Dubuque 0.34
Dubuque 3.2 N Dubuque 0.47
Dubuque L&D 11, IA Dubuque 0.33
ELKADER 6SSW, IA Clayton 0.19
Ely 0.5 SE Linn 0.38
FAYETTE, IA Fayette 0.52
GUTTENBERG L & D 10, IA Clayton 0.36
HAMPTON, IA Franklin 0.28
Kalona 7.3 NNW Johnson 0.32
LADORA, IA Iowa 0.18
LOWDEN, IA Cedar 0.38
MANCHESTER NO. 2, IA Delaware 0.61
MAQUOKETA 4 W, IA Jackson 0.47
Marengo 2.6 SSW Iowa 0.44
Marion 1.2 NE Linn 1.17
Monona WWTP, IA Clayton 0.41
Monticello, IA Jones 0.57
New Hampton 0.4 SW Chickasaw 0.41
NEW HAMPTON, IA Chickasaw 0.35
North Liberty 1.0 ENE Johnson 0.52
Oelwein 0.8 WNW Fayette 0.50
Quasqueton 1.8 S Buchanan 0.55
Solon 0.3 ESE Johnson 0.60
ST ANSGAR, IA Mitchell 0.73
STANLEY 4 W, IA Buchanan 0.32
TOLEDO 3 N, IA Tama 0.07
TRIPOLI, IA Bremer 0.16
VINTON, IA Benton 0.37
VOLGA 1NE, IA Clayton 0.17
WASHINGTON, IA Washington 0.10
Waterloo 1.8 SSE Black Hawk 0.37
Waterloo 3.0 NNW Black Hawk 0.29
Waucoma 0.2 N Fayette 0.63


Posted under Precipitation Totals

This post was written by Schnack on July 10, 2013

“Heat” Lightning…is There Such A Thing?

Courtesy: Amy Walther

Courtesy: Amy Walther

The short answer is no.

Tonight a storm developed very quickly along a cold front in a very unstable atmosphere. A few cumulus clouds developed and before you knew it we had a big storm. Nothing severe…just one producing a heavy downpour and lots of lightning. I heard the term “heat lightning” thrown around a lot to describe the lightning within the storm. What you saw tonight was just lightning inside a thunderstorm….nothing more than that.

A thunderstorm produces lightning. Now if the storm is near by, you see the lightning followed by the sound of thunder. The closer the lightning strike is to you the shorter the time between seeing the lightning and hearing the thunder. Now if the lightning/storm was far away from you, there would be no thunder heard but you could see lightning. This is what happened tonight for many people. The storm tonight was producing a lot of lightning. The storm top was about 45,000 ft…so you would be able to see the lightning from far away (dozens of miles). Some storms produce more lightning than others. This one tonight was one of them. Thunder is rarely heard from a storm more than 10 miles away.

The term “heat Lightning” came about because during the summer months, when it is hot, when large storms form and could be seen from far away without hearing the thunder. Typically the sky is clear overhead with the storm many miles away. Therefore the term caught on.

I hope that clears things up about the lightning tonight and not hearing the thunder associated with it.

Here is video of the lightning Tuesday evening taken by Kent Larson.


Posted under Lightning

This post was written by Schnack on July 10, 2013