Weather Hot Shots on Mon. April 15

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Posted under Hot Shots, Photo

This post was written by Schnack on April 15, 2013

Heavy Rain Later This Week

UPDATED at 4:20 PM

Tonight: Mostly cloudy. Low: 31-37. Wind: W 5-10 mph.

Tuesday: Partly cloudy. High: 49-54. Wind: N 5-15 mph.

Tuesday Night: Cloudy. Low: 37-41. Wind: NE 5-15 mph.

Wednesday: Cloudy with at 70% chance of rain and isolated t-storms. High: upper 40s.

Thursday: Cloudy 70% chance of rain. High: upper 40s.

Friday: Mostly cloudy with a 20% chance of light rain/snow. High: low-mid 40s.

Saturday: Mostly cloudy. High: near 50.

Sunday: Mostly cloudy with a 20% chance of showers. High: mid 50s.

Monday: Mostly cloudy with a 205 chance of showers. High: mid 50s.  

It was nice to see the sun and blue sky for a few hours this morning. Clouds quickly moved back in with scattered light showers in parts of eastern Iowa this afternoon. Those showers will move out of the area this evening. The sky will remain mostly cloudy overnight. Here is the radar at 4:05 PM.

Blog Graphic 1

Tuesday will be partly cloudy with a slight chance of a few sprinkles south of Waterloo in the afternoon.

The next storm we are tracking is going to produce a lot of rain 1-3”+ Wednesday and Thursday. Here is the rain forecast from Monday evening through Thursday evening.

Apr 15 QPF

The rain will begin Wednesday morning with heavy downpours possible at any time Wednesday through Thursday. The best chance of the heavy downpours will be Wednesday night. The map below is the WPC forecast map for Wednesday morning.

Apr 15 Wed AM Sfc Map
The wind will make it feel colder Wednesday through Friday at 15-25 mph with occasional higher gusts.

As the storm pulls away cold air will be pulled south again like the last storm and there is a slight chance of a few snow showers Thursday night and Friday morning.

Saturday will be dry, but not for long. There are more chances of rain Sunday and Monday.

Flooding Concerns:
Not only are we tracking the storms that are producing the rain but we are also tracking the potential flooding that might happen later this month in to May. The recent heavy rain, more on the way and the deep snow pack up north raise concerns. Here is what the National Weather Service from La Crosse has to say about the potential flooding:

The Mississippi River is running within a few feet of flood stage. This high water is due to the snow melt runoff combined with significant rainfall across southeast Minnesota, northeast Iowa, and western Wisconsin in recent days. This first crest will pass, with water levels steadying off or receding this week.  But that is not the big concern…

There is still a great deal of snow cover across central and northern Minnesota, as well as northwest Wisconsin.  These areas are the headwaters for the Minnesota, Mississippi, and St. Croix rivers.  As the snow melts across those river drainage areas, that water will eventually come down the Mississippi.  A (potentially) significant  rise and crest for the Mississippi is likely to occur sometime during late April or early May, depending on how quickly and how soon the snow melts, and if we have additional precipitation.  This crest could be higher than the first one.

The 8-14 day outlook (April 23-29) from the Climate Prediction Center has Iowa with slightly below normal temperatures and near normal precipitation.

Apr 15 814temp_newApr 15 814prcp_new


Posted under Forecast Discussion

This post was written by Schnack on April 15, 2013

24 Hour Rain Totals



7 AM Sunday to 7 AM Monday

Location County Rain
Waterloo Black Hawk 0.65
Dubuque Dubuque 0.20
Cedar Rapids Linn 0.63
Iowa City Johnson 0.36
Ainsworth 7.4 N Washington 0.30
Anamosa 3SSW, IA Jones 0.51
BELLE PLAINE, IA Benton 0.66
CASCADE, IA Dubuque 0.53
Central City 6.7 W Linn 0.70
CLERMONT, IA Fayette 0.68
COGGON, IA Linn 0.62
COLWELL, IA Floyd 1.04
Decorah 7.9 ENE Winneshiek 1.35
Dubuque #3, IA Dubuque 0.21
Dubuque L&D 11, IA Dubuque 0.14
ELKADER 6SSW, IA Clayton 0.75
FAYETTE, IA Fayette 0.78
GUTTENBERG L & D 10, IA Clayton 0.75
HAMPTON, IA Franklin 1.00
IONIA 2W, IA Chickasaw 1.23
IOWA FALLS, IA Hardin 0.38
KESLEY 3 NNE, IA Butler 0.47
LADORA, IA Iowa 0.74
LANSING 4SE, IA Allamakee 1.15
LOWDEN, IA Cedar 0.25
MANCHESTER NO. 2, IA Delaware 0.59
MAQUOKETA 4 W, IA Jackson 0.20
Marengo 2.6 SSW Iowa 0.46
Marion 1.2 NE Linn 0.57
Monona WWTP, IA Clayton 0.97
Monticello, IA Jones 0.56
NASHUA 2SW, IA Floyd 1.00
New Hampton 0.4 SW Chickasaw 1.35
NEW HAMPTON, IA Chickasaw 1.03
North Liberty 1.0 ENE Johnson 0.49
Oelwein 0.8 WNW Fayette 0.84
Parnell Iowa 0.45
Peosta 0.7 ESE Dubuque 0.35
Solon 0.3 ESE Johnson 0.50
TRAER, IA Tama 0.78
TRIPOLI, IA Bremer 0.95
VINTON, IA Benton 0.56
VOLGA 1NE, IA Clayton 0.83
WASHINGTON, IA Washington 0.23
Waterloo 1.8 SSE Black Hawk 0.65
Waterloo 3.0 NNW Black Hawk 0.61
WAUCOMA , IA Fayette 1.26


Posted under Precipitation Totals

This post was written by Schnack on April 15, 2013

April 15

TodayinWeatherHistoryFrom NWS
: Heavy snow in eastern Iowa on April 15-16 produced snowfall totals of 7.2 inches at Dubuque, 6.5 inches at Waukon, 6.2 inches at Marion, and 6.0 inches at Cresco. The late season snow contributed to record spring flooding across eastern portions of the state which paved the way for the historic floods that would follow later that summer.

 This Day in National/World Weather History …
 15 April 1921 → A large tornado outbreak struck Texas, Arkansas, and Mississippi. One tornado family was on the ground for 112 miles and caused up to F4 damage. That family took 59 lives from Marion County, TX to Pike County, AR and the individual tornadoes were as much as a mile wide.
 15 April 1949 → A hailstone with a diameter of 5 inches and weighing over 4 pounds was reported in Troy, NY.
 15 April 1984 → In Terrace, British Columbia an intense wind storm capsized fishing vessels and sailboats, damaged power lines and buildings, and fanned forest fires. Wind gusts as high as 75 mph were reported. The storm caused several million dollars in damage.
 15 April 2011 → Tornado outbreaks happened on three consecutive days from the 14th to the 16th. On this date an EF3 tornado hit the northwest side of Jackson, MS, injuring ten people. An EF-3 in Neshoba and Kemper counties in Mississippi was on the ground for nearly 39 miles and was 3/4 of a mile wide.


Posted under Weather History

This post was written by Schnack on April 15, 2013