Winter 2012-2013 Snow Update (Dec 14)

The data below shows the snow so far this winter, departure from normal and the snow last year on the same date.
Click on image to enlarge.


Posted under Winter Weather

This post was written by Schnack on December 14, 2012

Weather Hot Shots on Fri. December 14

Submit your weather Hot Shot by clicking here.
One photo is shown on the 5 pm newscast and one on the 10 pm newscast.


Posted under Hot Shots, Photo

This post was written by Schnack on December 14, 2012

Rain Likely This Weekend

UPDATED at 4:45 PM

Tonight:  Cloudy with rain developing. Low: 35-38. Wind: SE 10-15 mph.

Saturday: Cloudy with a 100% chance of rain. High: 42-48. Wind: S 10-20 mph.

Saturday Night: Cloudy with 50% chance of light rain/snow ending. No accumulation. Low 28-34. Wind: W 5-10 mph.

Sunday: Mostly cloudy. High: mid-upper 30s.

Monday: Mostly cloudy. High: mid 30s.

Tuesday: Partly cloudy. High: mid-upper 30s.

Wednesday: Mostly cloudy with a 20% chance of rain/snow. High: low 30s.

Thursday: Mostly cloudy with a 20% chance of snow. High: near 30.

Friday: Partly cloudy. High: upper 20s.


Temperatures this afternoon are warm once again. A warm front is located along the Iowa/Minnesota state line this afternoon.

At 3 pm the temperatures in Iowa were in the 40s. The warm front will remain north of Iowa tonight keeping temperatures above freezing as the precipitation moves in to the area.

Low pressure is developing over eastern Colorado this afternoon. The low is forecast to track northeast across Iowa Saturday.

Rain will move into eastern Iowa tonight and continue through Saturday. The rain in the afternoon will be a bit more scattered than in the morning. Here is the rain forecast from Friday evening to Sunday evening.

As the low moves into Wisconsin Saturday night…colder air will move south and the light rain will turn to a mix of light rain/snow. No snow accumulation is expected Saturday night. There might be a light rain/snow mix early Sunday morning otherwise mostly cloudy and colder air will be around Sunday.

Monday and Tuesday will be dry, but there is a little change in the previous forecast for Wednesday and Thursday. An area of low pressure is forecast to develop in southern Colorado and track northeast toward northern Indiana Thursday morning. The map below shows the track.

The track is a little farther south than the storm for this weekend. This would put Iowa a bit more in the colder air giving us a chance of snow with this system. It is way too early for any details on the storm but there is a chance of rain/snow Wednesday and light snow Thursday morning as the low moves towards the Great Lakes.


Posted under Forecast Discussion

This post was written by Schnack on December 14, 2012

December 14

From NWS
: An extremely rare December tornado struck rural areas just south of Maquoketa producing F1 damage. This was the first December tornado in Iowa since 1891 and one of only three ever recorded in the state. Thunderstorms on this day also produced straight-line wind damage at several locations.

1901: An arctic cold front blasted across Iowa on December 13th ushering in a week of very cold weather. The lowest temperature readings were reached on the morning of the 14th including -27 F at Sheldon, Sioux Center, and Storm Lake, -28 F at Forest City, -29 F at Sibley, and -30 F at Estherville. At Des Moines the low was -17 F and the high was only -3 F making this the earliest date of the year at that location on which the temperature has failed to reach zero.

This Day in National/World Weather History …
 14 December 1810 → An EF4 tornado, one of England’s strongest twisters on record, tore from Old Portsmouth to Southsea Common in Hampshire. Some houses were completely leveled and many others were so badly damaged that they had to be demolished.
 14 December 1924 → In Fairfield, MT the temperature dropped from 63 to -21, an 84 degree change in 12 hours. This is the greatest 12 hour temperature change ever recorded in the United States.
 14 December 2002 → Carrying 2,862 Volvos, BMWs, and SAABs, the Norwegian car transporter ship Tricolor collided with another ship due to thick fog and sank off the coast of Dunkirk, France.


Posted under Weather History

This post was written by Schnack on December 14, 2012