Drought Update

The latest Drought Monitor data was released this morning. It is updated once a week on Thursday morning. The maps use the data up to Tuesday morning that week. We had some good rain after Tuesday morning so the update next week will take into consideration this entire storm. Despite that the  rain has put a good dent in our drought here in eastern Iowa. Here is how much rain has fallen in the last 7 days. This is a radar estimate showing what areas had more than others.

Apr 11 Rain Totals Map


Here are the rain totals as of this evening compared to all of April last year.

Apr 11 April Rain

Here is the latest Drought Monitor map. Hopefully the rain after Tuesday morning this week through the weekend will eliminate the drought conditions for all of eastern Iowa.

Apr 11 Drought



Posted under Drought

This post was written by Schnack on April 11, 2013

Weather Hot Shots on Thu. April 11

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 April 11, 2013

Cool and Wet Weather Continues

UPDATED at 4:20 PM

Tonight: Cloudy with 50% of a light rain/snow showers. Low: 29-33. Wind: W 10-15 mph.

Friday: Cloudy with a 20% chance of a light rain/snow shower. High: 37-44. Wind: NW 10-20 mph.

Friday Night: Cloudy. Low: 26-31. Wind: NW 5-15 mph.

Saturday: Mostly cloudy. High: mid-upper 40s.

Sunday: Mostly cloudy and windy (S 15-25 mph) with a 70% chance of showers/storms. High: low 60s

Monday: Mostly cloudy with a 20% chance of showers. High: low-mid 50s.

Tuesday: Mostly cloudy with a 20% chance of showers. High: low 50s.

Wednesday: Mostly cloudy with at 30% chance of showers. High: near 50.

Thursday: Cloudy with a 20% chance of rain/snow. High: upper 40s.

It was another dreary day with temperatures will below normal with light rain/drizzle.  Light rain/drizzle will mix and/or chance to a few snow showers tonight as temperatures drop to near 30 degrees. The roads that are wet as temperatures drop below freezing could be a bit slick late tonight.

The 500 mb low (see map below) will be tracking east over Iowa tonight and Friday.  It will cool the atmosphere down below freezing for a chance of a few snow showers tonight and Friday morning.

Apr 11 WV500MB
Yesterday I mentioned we might have some minor snow accumulation (1” or less). It doesn’t look like any accumulation will happen. The ground is warm and any snow that does fall probably won’t fall fast enough to accumulate. The best chances of getting 1”+ of snow will be north of Iowa (see map below).

Apr 11 1 inch snow
Saturday will be a little warmer with a few rays of sunshine, but more clouds are expected than sun.  Sunday will be warmer and windy as we track the next area of low pressure. It is forecast to track from Wyoming Saturday evening through the Midwest Sunday and bring us a good chance of showers and storms. Here is the forecast position of the low Saturday evening.

Apr 11 Sat Eve Sfc
At this point the Storm Prediction Center does not have any risk for severe storms for eastern Iowa Sunday.

Once that storm moves east the weather will remain dreary. Monday and Tuesday will be mostly cloudy with a few light rain showers.  Another low pressure system is forecast to bring rain to the area Wednesday and Thursday. On computer model show a possibility of colder air Thursday and maybe some snow chances Thursday night. I am going to just put rain in the forecast at this point because it is going to be hard to get snow to accumulate as we get towards the end of April. The storm does have a lot of wind with it. We will continue to track it and have more information as it gets closer in time.


Posted under Forecast Discussion

This post was written by Schnack on April 11, 2013

24 Hour Rain Totals


7 AM Wednesday to 7 AM Thursday

Location County Rain
Waterloo Black Hawk 0.28
Dubuque Dubuque 0.58
Cedar Rapids Linn 0.62
Iowa City Johnson 0.74
Ainsworth 7.4 N Washington 0.99
Anamosa 3SSW, IA Jones 0.81
BELLE PLAINE, IA Benton 0.56
CALMAR, IA Winneshiek 0.39
CASCADE, IA Dubuque 0.69
Cedar Falls 1.4 SSE Black Hawk 0.46
Cedar Rapids 2.0 ENE Linn 0.77
Cedar Rapids 3.4 NW Linn 0.68
Central City 6.7 W Linn 0.67
CLERMONT, IA Fayette 0.37
COGGON, IA Linn 0.70
COLWELL, IA Floyd 0.33
CONRAD, IA Grundy 0.55
CRESCO 1NE, IA Howard 0.33
Decorah 7.9 ENE Winneshiek 0.25
Dubuque #3, IA Dubuque 0.62
ELKADER 6SSW, IA Clayton 0.47
Ely 0.5 SE Linn 0.72
FAYETTE, IA Fayette 0.34
FULTON, IA Jackson 1.37
GUTTENBERG L & D 10, IA Clayton 0.52
HAMPTON, IA Franklin 0.60
IOWA FALLS, IA Hardin 0.43
KESLEY 3 NNE, IA Butler 0.57
LADORA, IA Iowa 0.66
Latimer 1.9 NE Franklin 0.33
LOWDEN, IA Cedar 0.71
MANCHESTER NO. 2, IA Delaware 0.59
MAQUOKETA 4 W, IA Jackson 0.57
Marengo 2.6 SSW Iowa 0.68
Marion 1.2 NE Linn 0.90
Monona WWTP, IA Clayton 0.31
Monticello, IA Jones 0.73
NASHUA 2SW, IA Floyd 0.42
New Hampton 0.4 SW Chickasaw 0.41
NEW HAMPTON, IA Chickasaw 0.35
North Liberty 1.0 ENE Johnson 0.83
Oelwein 0.8 WNW Fayette 0.35
OELWEIN 1E, IA Fayette 0.28
OSAGE , IA Mitchell 0.47
POSTVILLE, IA Allamakee 0.42
Quasqueton 1.8 S Buchanan 0.59
Solon 0.3 ESE Johnson 0.77
ST ANSGAR, IA Mitchell 0.54
TOLEDO 3 N, IA Tama 0.44
TRAER, IA Tama 0.57
TRIPOLI, IA Bremer 0.40
VINTON, IA Benton 0.50
VOLGA 1NE, IA Clayton 0.41
WASHINGTON, IA Washington 1.07
Waterloo 1.8 SSE Black Hawk 0.38
Waterloo 3.0 NNW Black Hawk 0.31
WAUCOMA , IA Fayette 0.26


Posted under Precipitation Totals

This post was written by Schnack on April 11, 2013

April 11

TodayinWeatherHistoryFrom NWS
: A significant severe weather outbreak produced 28 tornadoes across Iowa which is the all-time state record for a single day. Most of these were toward the weaker end of the Fujita scale but there were two deaths and at least three injuries when a tornado struck Agency in Wapello County. One particularly long-lived tornado moved from northern Missouri to Madison County causing extensive damage in Ringgold County. Large hail was also reported ranging up to golf ball size at Parkersburg and there were scattered reports of 70 to 85 mph wind gusts with the worst straight-line wind damage in Black Hawk and Franklin counties.

1996: Very warm weather sent the temperature into the 90s in parts of southwestern Iowa, peaking at 95 F at Glenwood. This was the highest temperature recorded in Iowa that April and is made more remarkable by the fact that just two days earlier, on April 9th, much colder weather had dropped temperatures to as low as 15 F at Grinnell. Thus Iowa experienced an 80 degree temperature increase in just two days.

1980: A late season widespread snowfall primarily affected southern Iowa with reported accumulations including 6.0 inches at Blockton and Ottumwa, 7.0 inches at Beaconsfield, and 13.5 inches at Albia. Another snow storm followed just a few days later in many of the same areas, then remarkably by the 22nd record breaking heat settled in across the entire state.

1965: The infamous Palm Sunday tornado outbreak, which wreaked havoc in several midwestern and Ohio River valley states, began on April 11th when several tornadoes struck eastern Iowa. The first and strongest of these tornadoes touched down just before 1 pm near Tipton and produced F4 damage on an eastward track, killing one and injuring at least three others before lifting over Clinton County. Another tornado was spotted north of Waukon and several other storms in eastern Iowa produced strong winds, hail, and funnel clouds.

 This Day in National/World Weather History …
 11 April 1965 → The infamous Palm Sunday Tornado Outbreak, including six F5s, claimed 256 lives. 90% of the buildings were destroyed in Russiaville, IN. Members of the Manitou Beach Baptist Church were in the basement when the church was leveled inManitou Beach, MI. Northern Indiana was particularly hard hit, and one of the world’s most famous tornado photos was snapped. The outbreak extended as far west as Iowaand as far east as Ohio.
 11 April 1987 → After 10 days of constant flooding in the northeastern part of the United States, the rain finally stopped. The damage from the rain and the melting snow counted into the billions. In New York, the State Thruway Bridge collapsed because of the flooding and claimed ten lives.
 11 April 1991 → The world record was set for the longest distance a piece of tornado debris has been carried. A personal check was blown from a home in Stockton, KS by an F3 tornado and was found in Winnetoon, NE 223 miles away.


Posted under Weather History

This post was written by Schnack on April 11, 2013