February 8, 2012

Des Moines temperature has yet to dip below zero

Iowa’s capital city has yet to reach a below-zero temperature this winter. National Weather Service meteorologist Kevin Deitsch says it’s an unprecedented event over 134 years of record keeping.

“This is the latest in the season we’ve gone without Des Moines hitting zero degrees or lower,” Deitsch said. The old record for the latest day to reach zero or below was set in 1914, when Des Moines reached two-below-zero on February 6. Des Moines has received 14.7 inches of snow this winter, well below the normal amount of 22 inches for this point in the season.

“Typically to get real cold temperatures, you need a pretty good snow pack on the ground,” Deitsch said. “And since we haven’t had that for much of this winter, temperatures have been a bit warmer than usual.”

Last year at this time, Des Moines had received 31.5 inches of snow, more than twice as much as this year. Deitsch said temperatures could dip below zero in Des Moines this weekend.

“Right now, we have low temperatures (forecast) in the single digits for those days. If we’re able to get rid of some clouds overnight, we could creep below zero on either Friday or Saturday. So, that’s something to watch,” Deitsch said.

In Des Moines, the temperature climbed into the 60s on three days in January. The only other time that happened was in 2002. The National Weather service reports, in terms of average temperature, this has been the 3rd warmest winter ever recorded in Des Moines.

It’s the 8th warmest for Waterloo, 5th for Mason City and 6th warmest winter – thus far – in Ottumwa.

Average temperatures (Dec 1 – Jan 31)
DES MOINES
1. 1918-19 32.0 degrees
2. 1914-15 31.8 degrees
3. 2011-12 31.7 degrees

WATERLOO
1. 2001-02 30.1 degrees
2. 1913-14 28.6 degrees
3. 1931-32 27.9 degrees
4. 1918-19 27.9 degrees
5. 1943-44 27.1 degrees
6. 1907-08 27.1 degrees
7. 1982-83 27.0 degrees
8. 2011-12 26.8 degrees

MASON CITY
1. 1913-14 27.3 degrees
2. 2001-02 26.6 degrees
3. 1943-44 25.6 degrees
4. 1905-06 24.6 degrees
5. 2011-12 24.4 degrees

OTTUMWA
1. 1931-32 33.4 degrees
2. 2001-02 32.5 degrees
3. 1988-89 32.2 degrees
4. 1946-47 31.4 degrees
5. 1938-39 31.4 degrees
6. 2011-12 31.2 degrees

Big winter storm heading in from the west

A major winter storm is knocking on Iowa’s door. Twenty counties in central and western Iowa are under a Winter Storm Warning late tonight through tomorrow night. The watch area includes the cities of Council Bluffs, Denison, Atlantic, Creston, Ames and Des Moines.

National Weather Service meteorologist Frank Boksa says the storm will start with rain and change over to snow after midnight.

“We’re not looking for any big snowfall totals during the overnight hours – perhaps half-an-inch in the Des Moines metro.

Certainly, areas out west will change over first and they will see a little bit more snow by daybreak. We’re looking at two or three inches in western Iowa,” Boksa said. But, the heaviest snow is expected through the morning and early afternoon. Boksa said it’s difficult to forecast final snowfall totals because the snow will be so wet and heavy.

“Wet, heavy snow compacts more…this is a very difficult storm to try and pinpoint where the heaviest snow is going to be,” Boksa said. Some blowing and drifting of snow is possible tomorrow as northeast winds are expected between 15 and 30 miles an hour.

High temperatures across the state through the weekend will mostly be in the 30s.

Iowa ski areas don’t have much natural snow

The recent stretch of warm weather has made much of Iowa’s snow disappear. The white stuff is still plentiful in a few places though, like at the regional ski resorts. Dubuque’s Sundown Mountain reports more than four feet of man-made snow and 22 trails open for skiing and snowboarding.

Sundown spokesman Mark Dietz says mild conditions are better for beginners. “It’s a lot nicer to learn instead of when it’s zero and the wind’s blowing,” Dietz says. “The warm weather has its plus side, that being, it is more comfortable than what we could normally have here, which is much, much colder than this.”

Just across the Mississippi River in Galena, Illinois, Stuart Stoffregen is the marketing director at Chestnut Mountain. Stoffregen says it would take temperatures in the 50s and 60s for a couple of weeks before they would have to shut down.

“Being in the Midwest, you have to rely on technology and our snow-making is very top notch,” Stoffregen. “When it was colder a couple of weeks ago, we made piles and piles of snow. We have well over 50-some inches on the hill. Right now, the snow is a little bit softer but it’s still great for skiing and snowboarding.”

Iowa normally sees 60-degree days in January once in a decade. Last month, many cities hit 60 on four separate days, with some reaching 70. Still, forecasters say the cold weather is returning with the chance of snow on Friday night and Saturday.

Snowfall was a little below normal in January

State climatologist, Harry Hillaker, says the average snowfall continued to be below normal in the first month of the new year. Hillaker says January was, “Not as far below normal as November and December had been though, with statewide average of about 6.6 inches of snow, normally we would have about eight inches or so for the month, so it’s a little bit below normal.”

He says there’s always a big contrast in snowfall across the state. “Some parts of northeast Iowa were quite a bit above normal, Guttenberg for example had 17.5 inches of snow for the month, which would be about double the usual amount there. On the other side of the spectrum…Logan in western Iowa had only six-tenths of an inch of snow for the month,” Hillaker says.

One thing that is much different from recent years is the amount of time the snow has hung around. Hillaker says rain and warm conditions melted the snow we got so the ground didn’t remain white very long after the snowfall, like it has in recent years.

“Especially the winter two years ago, 2009 and 2010, where some places such as Des Moines just obliterated the old record as far as duration of snow cover. So it’s a huge contrast from what we’ve seen in recent winters,” Hillaker says. “But again, not historically at the top as far as a lack of snow, but certainly less than usual.”

Part of the melting of the snowcover was due to warmer temperatures. Hillaker says the temperatures averaged about six degrees above normal for the month. “Actually not high enough to get in the top ten as far as warmest Januarys, but we certainly did have some very mild days mixed in there,” Hillaker says.

“Temperatures were into the 60′s on several different dates during the month in parts of the state, which is certainly not an everyday occurrence by any means in Iowa.” Hillaker says the overall precipitation for January was 63-hundredths of an inch, which is about two-thirds the normal average for the month.

Warm weather leads to warning about ice fishing

The amount and quality of ice on most of Iowa’s lakes has been drastically reduced with temperatures hitting the 50′s and 60′s this week. Iowa Department of Natural Resources fisheries biologist Ben Dodd says the cold spell in January wasn’t enough to build a lot of solid ice.

“And with this warm weather, it’s melted quite quickly,” Dodd said. “We really aren’t recommending folks get out on the ice. We’ve already had one incident in Madison County. We know it’s tempting to get out there, but we recommend people stay off at this point.”

Authorities say 64-year-old Linda Jones and her friend, 80-year-old George Pierce, drowned Monday while ice fishing on a farm pond in Madison County. Dodd said many ponds and lakes had good ice as recently as Saturday, but Monday’s temperatures in the mid 60′s forced the D.N.R. to cancel some trout stocking and ice fishing events scheduled for this coming weekend in central Iowa.

“The ice was just not thick enough for doing that this year,” Dodd said. Ice fishing conditions are slightly better north of Highway 20, but Dodd said anglers are encouraged to use caution even in northern Iowa.

By Pat Powers, KQWC, Webster City

Record warm temperatures spread across the state

Iowans are waking up to mild temperatures this morning after a day of record warmth on Monday. Brad Small, a meteorologist at the National Weather Service office in Johnston, says several all-time records were shattered.

Des Moines had 65 degrees, beating the old record of 57. Ottumwa reached 65, breaking the old record of 59. Lamoni saw 63 degrees, knocking off the old record by three degrees. Webster City reached a high of 59, breaking the old record of 53 set in 1931.

Small says today’s temperatures will be above normal for this final day of January, but likely won’t see any new records set. There’s the possibility of snow by Friday.

By Pat Powers, KQWC, Webster City

Heavy snow causing travel problems

Snowplows are struggling to keep up with the heavy snow falling in parts of northern Iowa. Twenty-three counties across the state’s northern half are under a Winter Storm Warning. Meteorologist Jim Lee, at the National Weather Service, says this may be the deepest snowfall of the season, so far:

“We’re forecasting totals of four to seven inches across northern, northeastern and eastern Iowa with lower amounts further south,” Lee says. Several northern Iowa school districts cancelled classes today due to the looming storm. The snow should last much of the day and

Lee says by the time it stops, it’ll be bitter cold.

Temperatures will fall overnight with clearing skies as the snow cover helps to make things even colder, with regular air temps dipping perhaps as low as 15-below zero. While Saturday should be mostly clear and cold, Lee says there’s a chance for still-more snow during the second half of the weekend.

It may be warm enough for some rain during the day on Sunday, rain that may change over to snow on Sunday night. For Iowans who are traveling today, road conditions are becoming hazarous in many areas. Check first by calling the state D.O.T.’s information line at 5-1-1.

By Pat Powers, KQWC, Webster City