Posted under Climate
This post was written by Schnack on December 31, 2012
If you have a clear sky this evening at 9:15 this is the view you will see looking east. Sirius is the brightest star in the night sky. Click image to enlarge it.

Here are to two more images that show you where to look to see Orion’s Belt in the constellation Orion. One is labeled and the other one is not.
Posted under Astronomy
This post was written by Schnack on December 31, 2012
Submit your weather Hot Shot by clicking here.
One photo is shown on the 5 pm newscast and one on the 10 pm newscast.
This post was written by Schnack on December 31, 2012

UPDATED at 4:15 PM
Tonight: Mostly cloudy early than becoming partly cloudy and very cold. Low: 1 to -10. Wind: N 5-10 mph. Wind Chill: 10-25 below zero.
New Year’s Day: Mostly sunny and very cold. High: 9-12. Wind: W/NW 5-10 mph. Wind Chill: 0 to -5.
Tuesday Night: Mostly clear. Low: -1 to 2. Wind: SW 5-10 mph. Wind Chill: -10 to -15.
Wednesday: Mostly cloudy. High: near 20.
Thursday: Partly cloudy and breezy (NW 10-20 mph). High: upper teens.
Friday: Mostly sunny. High: mid teens.
Saturday: Partly cloudy. High: low 20s.
Sunday: Partly cloudy. High: mid 20s.
Monday: Partly cloudy. High: near 30.

A Wind Chill Advisory is in effect tonight for a portion of north central Iowa.

The combination of temperatures below zero and a 5-10 mph will push wind chills down into the teens and 20s below zero.
The one thing that could help us stay a little warmer tonight would be clouds. The more clouds we have above the warmer the temperatures will be here on the ground. We will start the night mostly cloudy but after midnight the sky will become partly cloudy to mostly clear. This will vary from location to location. The clouds will clear faster across the north. The forecast lows take into account less cloud cover overnight. There are two areas of clouds that I am tracking that may impact the lows tonight. I outlined them on the image below.
It will be a cold New Year’s Eve.
High pressure will provide sunshine for the first day of 2013. A weak area of low pressure will track east across the US/Canadian border Wednesday with light snow. Iowa will be south of any moisture except a few flurries are possible north of Highway 20. We will mainly have a mostly cloudy sky. Here is the forecast map for Wednesday morning.

Thursday and Friday will be colder behind the cold that pushes through here Wednesday. Highs will be in the teens but there is a possible warm-up in sight. By the weekend and early next week high temperatures will be in the 20s. Monday next week will be close to 30 degrees.
Posted under Forecast Discussion
This post was written by Schnack on December 31, 2012
From NWS
1863: From New Years Eve 1863 into New Years Day 1864 a severe blizzard struck most of Iowa, being by some accounts one of the worst in the recorded history of the state. There were contemporary reports of “men frozen stiff and dead while sitting bolt upright in their wagons” and snow drifts more than 10 feet deep in northern Iowa. Even after the snow ended late on New Years Day extremely cold temperatures and high winds made travel virtually impossible for several days. Dozens of soldiers stationed at Estherville after recent conflicts with Native Americans nearly starved to death as no trains or supplies could reach them for almost a week.
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Posted under Weather History
This post was written by Schnack on December 31, 2012

UPDATED at 4:00 PM
Tonight: Mostly cloudy. Low: 12-20. Wind: SW/NW 10-15 mph.
Monday: Mostly cloudy cold with slowly falling temperatures. High: mid teens in the morning. Wind: NW 10-15 mph. Wind Chill: 0-10.
Monday Night: Partly cloudy and cold. Low: 0 to -8. Wind: NW 5-10 mph.
New Year’s Day: Mostly sunny and very cold. High: near 10.
Wednesday: Mostly cloudy. High: near 20.
Thursday: Mostly cloudy. High: upper teens.
Friday: Mostly sunny. High: upper teens.
Saturday: Mostly cloudy. High: near 20.
Sunday: Mostly cloudy. High: low-mid 20s.

A cold front will cross the state late tonight with the wind shifting to the northwest. Cold air will move south behind the front. There is a secondary cold front but that is forecast to weaken Monday. High temperatures Monday will be in the morning and slowly fall through the day. Here is the forecast position of the cold front Monday morning.

If you are going out to ring in the new year prepare for the cold.
High temperatures on New Year’s Day (Tuesday) will be very cold as the temperatures struggle to reach 10 degrees. Here are the forecast high temperatures across the Upper Midwest.

Another front is forecast to cross Iowa Wednesday with clouds and slightly warmer temperatures (high near 20s). Behind the front, Thursday and Friday, it will be a little colder with highs in the mid-upper teens.
There are some signs that mid 20s, for highs, would return by Sunday.
Posted under Forecast Discussion
This post was written by Schnack on December 30, 2012
From NWS
1965: The year ended with unseasonably warm weather on December 30-31 as many stations across southern Iowa climbed into the 60s on both of those days. The highest readings were generally reached on the 30th when Des Moines and Waterloo both established daily records with highs of 63 F and 60 F, respectively. Other reported high temperatures included 63 F at Albia, Clarinda, and Fairfield, 64 F at Bloomfield and Ottumwa, and 65 F at Keokuk and Keosauqua.
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Posted under Weather History
This post was written by Schnack on December 30, 2012
6 AM Friday to 6 AM Saturday
| Location | County | 24-Hr Snow |
| Waterloo | Black Hawk | 0.5 |
| Dubuque | Dubuque | 1.0 |
| Cedar Rapids | Linn | 0.4 |
| Iowa City | Johnson | 0.0 |
| Anamosa 3SSW, IA | Jones | 0.3 |
| BRIGHTON, IA | Washington | 0.2 |
| Calamus 2.0 NE | Clinton | T |
| Camanche 1.2 W | Clinton | T |
| Cedar Rapids 2.0 ENE | Linn | 0.1 |
| Cedar Rapids 3.4 NW | Linn | 0.3 |
| CHARLES CITY, IA | Floyd | 0.5 |
| CLERMONT, IA | Fayette | 1.6 |
| COGGON, IA | Linn | 0.7 |
| CRESCO 1NE, IA | Howard | 1.0 |
| Decorah 7.9 ENE | Winneshiek | 1.5 |
| Delmar 2.3 NW | Clinton | 0.2 |
| Dubuque #3, IA | Dubuque | 1.0 |
| Dubuque L&D 11, IA | Dubuque | 1.0 |
| Ely 0.5 SE | Linn | 0.1 |
| FAYETTE, IA | Fayette | 0.6 |
| GRUNDY CENTER, IA | Grundy | T |
| GUTTENBERG L & D 10, IA | Clayton | 1.0 |
| HAMPTON, IA | Franklin | 0.0 |
| HOLSTEIN, IA | Ida | 0.4 |
| IONIA 2W, IA | Chickasaw | 0.5 |
| IOWA FALLS, IA | Hardin | 0.5 |
| LOWDEN, IA | Cedar | 0.2 |
| MAQUOKETA 4 W, IA | Jackson | 0.1 |
| MARSHALLTOWN, IA | Marshall | T |
| Monona WWTP, IA | Clayton | 1.1 |
| NASHUA 2SW, IA | Floyd | 0.8 |
| New Hampton 0.4 SW | Chickasaw | 0.5 |
| NEW HAMPTON, IA | Chickasaw | 2.0 |
| New London 1.5 SW | Henry | 0.2 |
| NEWTON, IA | Jasper | 0.4 |
| Oelwein 0.8 WNW | Fayette | T |
| OSAGE , IA | Mitchell | T |
| OSKALOOSA, IA | Mahaska | 0.7 |
| Salem 1 S, IA | Henry | 0.2 |
| Solon 0.3 ESE | Johnson | T |
| ST ANSGAR, IA | Mitchell | 0.3 |
| TOLEDO 3 N, IA | Tama | T |
| TRIPOLI, IA | Bremer | 0.4 |
| VOLGA 1NE, IA | Clayton | 0.8 |
| WASHINGTON, IA | Washington | 0.1 |
| Waterloo NWS Snowfall, IA | Black Hawk | T |
| WILLIAMSBURG 3 SE, IA | Iowa | 0.5 |
Posted under Precipitation Totals, Winter Weather
This post was written by Denice Pelster on December 29, 2012
From NWS
1917: Extremely cold weather brought the temperature all the way down to -40 F at Washta setting the all-time Iowa December record. A low temperature of -28 F at Sioux City also set the December record at that location. Other reported low temperatures included -39 F at Inwood, -25 F at Fort Dodge and Pella, -20 F at Fairfield, and -17 F at Des Moines.
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Posted under Weather History
This post was written by Schnack on December 29, 2012