Last Full Moon of 2012

Tonight is the last full moon of 2012. Since it is the full moon closest to the Winter Solstice it is called the Long Night Moon. It is officially full at 4:21 AM CST Friday.


Posted under Astronomy

This post was written by Schnack on December 27, 2012

Liberty Bowl Forecast

The Iowa State Cyclones will be playing Tulsa in the Liberty Bowl on December 31 at 2:30 PM. Memphis weather is usually warmer than Iowa but Memphis has recently had light snow. Click here for the current conditions and the latest forecast for Memphis, TN.


Posted under Sports

This post was written by Schnack on December 27, 2012

Comparing Snow Cover

At the beginning of December there was not much snow on the ground across the country (excluding AK & HI). December 1 had 13.3% while December 27 is now up to 65%. Now to compare today to last year (December 27, 2011) 24% of the country was covered with snow.


Posted under Precipitation Totals

This post was written by Schnack on December 27, 2012

Weather Hot Shots on Thu. December 27

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 27, 2012

Light Snow Tonight and Friday

UPDATED at 3:30 PM

Tonight: Cloudy with an 80% chance of light snow/flurries. Low: 17-21. Wind: E 5-10 mph.

Friday: Cloudy with a 100% chance of light snow. High: 26-29. Wind: NE 5-10 mph.

Friday Night: Cloudy with a few flurries. Low: 14-19. Wind: NW 5-10 mph.

Saturday: Decreasing clouds. High: low 20s.

Sunday: Partly cloudy. High: low 20s.

Monday: Mostly cloudy. High: upper teens.

New Year’s Day: Mostly sunny. High: mid-upper teens.

Wednesday: Partly cloudy. High: near 20.

Thursday: Partly cloudy. High: upper teens.

We started the day out with sunshine but clouds quickly moved in from the west as snow developed in western Iowa this morning. There is an area of low pressure in the upper levels of the atmosphere. Around noon today that low was located along the South Dakota/ Nebraska state line. It is forecast to track east tonight and Friday.

It was producing snow in South Dakota, Nebraska and western Iowa. Flurries are expected before midnight and after midnight light snow will develop. The light snow will continue through Friday and taper off Friday evening. Here is the forecast map for Friday evening.

There will only be about 0.10-0.20” of liquid in this system. The snow ratio is expected to be about 15:1 so that puts snow amounts about 1-2”. Some locations south of Highway 23 may see less than 1”. Areas along the Iowa/Minnesota state line might see 3” in a couple locations.

Blowing snow is not expected to be a concern with a light wind (5-10 mph) through Friday night.

The cloudy sky will become partly cloudy Saturday and remain that way through the weekend.

A cold front is forecast to cross the state Monday morning with a mostly cloudy sky and a reinforcing push of cold air from the north to the south. Highs temperatures Monday and Tuesday will be in the teens. Here is forecast position of the front Monday morning.

No big changes expected for Wednesday and Thursday with more day and cold weather.


Posted under Forecast Discussion

This post was written by Schnack on December 27, 2012

December 27

From NWS
: An intense storm system produced rare late December severe thunderstorms in southeastern Iowa resulting in straight-line wind damage from Lee through Scott counties. At Muscatine wind gusts to 90 mph blew down a 265 foot radio tower, while at Donnellson high winds destroyed an airplane hangar and damaged 7 planes. On the back side of the system in northwestern Iowa a major winter storm occurred on December 27-28 with freezing rain changing over to snow and accumulating to as high as 11.0 inches at Primghar, 11.5 inches at Le Mars, 12.5 inches at Sibley, 13.0 inches at Sheldon, and 14.0 inches at Hawarden. Winds behind the system gusted to 70 mph drifting the snow 6 to 10 feet deep and snapping power lines and poles.

1950: An arctic high pressure system settled across northeastern Iowa on December 27th resulting in very cold morning temperatures across the area, with many stations reporting their coldest December readings on record including -30 F at Osage, -31 F at Elkader, -34 F at Fayette, and -36 F at Decorah.

1904: A major winter storm struck much of Iowa from the afternoon of December 26th through the 27th and into the 28th. At first the precipitation fell as sleet and freezing rain, then it changed over to snow with strong winds producing blizzard conditions and blowing the snow into deep drifts making travel impossible. The heaviest snow fell across portions of southwestern, central, and northeastern Iowa with reported storm total accumulations of 10.0 inches at Mason City and Mount Ayr, 10.3 inches at Marshalltown, 11.0 inches at Cedar Rapids, 12.0 inches at Des Moines, and 15.0 inches at New Hampton. Many observers in northern Iowa noted the storm as the worst in more than 20 years. At Hanlontown in Worth County drifts more than 10 feet deep were reported with visibility less than 60 feet at times. The roads were blocked for several days after the storm across most of the state.

This Day in National/World Weather History …
 27 December 1978 → Antarctica reached a high temperature of 7.5 degrees. The average winter temperature is -60.
 27 December 1996 → One person was killed in a chain-reaction car accident that involved 50 vehicles on the Sunshine Skyway Bridge in Tampa Bay, FL. The accident was caused by dense fog in the area.
 27 December 2010 → Christmas Blizzard in the eastern U.S. finally wound down after dropping one to three feet of snow from North Carolina to Maine. New Jersey was particularly hard hit with almost the entire state getting at least a foot, with Rahway getting 32 inches. Central Park in New York City was buried under 20 inches of snow. Winds at New London, CT gusted to 68 mph and to near 70 mph on Long Island, NY.


Posted under Weather History

This post was written by Schnack on December 27, 2012