Weather Hot Shots on Tue. September 17

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One photo is shown on the 5 pm newscast and one on the 10 pm newscast.

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Posted under Hot Shots, Photo

This post was written by Schnack on September 17, 2013

Harvest Moon

The full moon this month is Wednesday night (18th). The official time of the full moon is 6:13 AM on Thursday (19th). Not sure if we will get much clear sky as the storm system will be pushing through the area during the next couple of days. The full moon this month is called the Harvest Moon. It is the full moon closest to the Autumnal Equinox (Sunday). Moon rise Wednesday is at 6:36 PM in the eastern sky. The moon will be low on the horizon making it appear to be larger than normal and with some clouds around the color could be a bit orange. Now lets cross our fingers for at least a clearing in the clouds Wednesday evening.

 

Harvest Moon

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Posted under Astronomy

This post was written by Schnack on September 17, 2013

Warmer and More Humid with Rain Chances

Forecast Bar

UPDATED at 4:40 PM

Tonight:
Cloudy with a 60% chance of showers/storms. Low: 58-63. Wind: SE 5-10 mph.

Wednesday: Partly cloudy with a 50% chance of showers/storms. High: 80-84. Wind: S 10-20 mph.

Wednesday Night: Mostly cloudy with a 40% chance of showers/storms. Low: 66-68. Wind: S 5-15 mph.

Thursday: Mostly cloudy with a 50% chance of showers/storms. High: low-mid 80s.

Friday: Mostly sunny. High: low 70s.

Saturday: Mostly sunny. High: near 70.

Sunday: Mostly sunny. High: low 70.

Monday: Mostly sunny. High: mid 70s.

Tuesday: Partly cloudy. High: mid 70s.

Weather Extra Bar

The last few days of summer (autumn arrives on Sunday) will feel warm and muggy. One of those days was NOT today. Clouds and a few light showers kept the temperatures in the 60s this afternoon. We didn’t see much rain because the atmosphere was dry and it took a while for it to saturate. Here is an example how the dry air looks to us as we forecast.

Sep 17 Sounding

The map below shows how much rain has fallen as of 4 pm.

Sep 17 Rain

A few light showers are possible this evening. The chance of showers/storms increases overnight as a warm front approaches from the southwest. The showers/storms are forecast to taper off by noon Wednesday. Warmer and more humid conditions are expected Wednesday as the warm front crosses eastern Iowa during the day. The warm and humid air will hang around through Thursday night until a cold front pushes through. Here is the forecast position of the cold front Friday morning.

Sep 17 Fri AM Sfc Map

The next round of showers/storms will be Thursday with the cold front. Showers/storms are forecast to end late Thursday night. Rain amount possible from Tuesday evening to Friday evening could be up around 1” to possibly 2” in isolated areas. At this point it doesn’t look like we will have a chance of severe weather Thursday with the cold front. This is something we will continue to track as the day gets closer.

Sep 17 QPF

Friday through early next week will be dry with cooler and less humid conditions.

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Posted under Forecast Discussion

This post was written by Schnack on September 17, 2013