Rain Reports

24 Hour Rain Totals between 8 and 9  PM

Waterloo – 1.04
Dubuque – 1.12
Cedar Rapids – 2.01
Iowa City – 2.66
West Branch – 3.25
Fairfax – 2.79
Ladora – 2.70
Belle Plaine – 2.25
Kalona – 2.01
Washington – 1.93
Washington – 1.89
Marion – 1.86
Tama – 1.69
Dysart – 1.62
Manchester – 1.52
Prairieburg – 1.39
Stanley – 1.31
Maquoketa – 1.22
Cedar Falls – 1.18
Independence – 1.13
Oelwein – 1.10
Denver – 1.10
Steamboat Rock – 1.03
Littleport – 1.00
Vinton – 0.97
New Hartford – 0.95
Fayette – 0.94
Waverly – 0.57
Marquette – 0.53
Tripoli – 0.47
Eldorado – 0.44
Dorchester – 0.29
Decorah – 0.27
Bluffton – 0.15


Posted under Precipitation Totals

This post was written by Schnack on April 17, 2013

Photos of Flooding Wednesday



Posted under Flooding, Photo

This post was written by Schnack on April 17, 2013

Weather Hot Shot on Wed. April 17

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 17, 2013

More Heavy Rain Tonight

UPDATED at 4:30 PM

Tonight: Cloudy with 100% chance of rain and storms. Heavy downpours are possible. Low: 36-42. Wind: NE 5-15 mph.

Thursday: Cloudy 80% chance of rain. High: 40-49. Wind: NW 10-15 mph.

Thursday Night: Cloudy with a 40% chance of light rain/snow showers. Low: 31-35. Wind: NW 10-20 mph.

Friday: Cloudy with a 30% chance of light rain/snow showers. High: near 40.

Saturday: Partly to mostly cloudy. High: near 50.

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

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

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

Wednesday: Partly cloudy. High: near 50.

We knew this was coming. Knowing it was coming doesn’t make it any easier to deal with now that it is here. Rain amounts of 1-3” have fallen across eastern Iowa with the heavier amouts in southeast Iowa causing flooding in some locations. The radar at 4:00 pm shows widespread rain in Iowa and more to our southwest moving northeast.

Apr 17 Radar
There is a lot going on with this storm. There are tornado watches as far south as Texas and extending northeast to Indiana. All kinds of flooding headlines extend from Kansas northeast to Michigan. The colder side of the storm brings more snow from Colorado to Minnesota and Wisconsin.

Apr 17 Headlines
A warm front is located east/west across Missouri. South of the front temperatures are in the 80s with dewpoints near 70. North of the front it is much colder with temperatures in the 30s and 40s. Here is the front this afternoon.

Apr 17 Current Map
In addition to flooding concerns there is a slight risk of severe weather across southeast Iowa. It is there because the low is forecast to track northeast across southeast Iowa tonight. Near and east of the low and south of the warm front will be the chance of a few severe storms with the main threat being large hail. Here is the SPC outlook.

Apr 17 day1otlk_2000
The map below shows a strong low level jet feeding moisture north into the storms from the Gulf of Mexico.

Apr 17 LLJ
Repeating…more heavy rain is possible tonight. Areas southeast of a line from Dubuque to Cedar Rapids could see an additional 1-2”+ while areas northwest will receive 1” or less. Here is the rain forecast from Wednesday evening to Thursday evening.

Apr 17 QPF

The showers become scattered and light Thursday. Thursday night and Friday it gets cold enough for scattered light rain/snow showers. The wind increases from the northwest Friday.

High pressure will bring us a dry day Saturday. Unfortunately there is more rain in the forecast Sunday through Tuesday. The rain chances are low at this point and it doesn’t look like heavy rain is expected like this Wed/Thu is and will still bring us.

When it comes to the temperatures in the next seven days…highs will remain colder than 60 degrees.


Posted under Forecast Discussion

This post was written by Schnack on April 17, 2013

24 Hour Rain Totals


7 AM Tuesday to 7 AM Wednesday

Location County Rain
Waterloo Black Hawk 0.14
Dubuque Dubuque 0.07
Cedar Rapids Linn 0.15
Iowa City Johnson 0.16
BELLE PLAINE, IA Benton 0.12
Waterloo 1.8 SSE Black Hawk T
Quasqueton 1.8 S Buchanan T
LOWDEN, IA Cedar 0.20
ELKADER 6SSW, IA Clayton 0.07
VOLGA 1NE, IA Clayton T
MANCHESTER NO. 2, IA Delaware 0.15
Dubuque #3, IA Dubuque 0.07
CASCADE, IA Dubuque 0.13
CONRAD, IA Grundy 0.20
Marengo 2.6 SSW Iowa 0.09
LADORA, IA Iowa 0.12
MAQUOKETA 4 W, IA Jackson 0.18
Solon 0.3 ESE Johnson 0.18
North Liberty 1.0 ENE Johnson 0.19
Anamosa 3SSW, IA Jones 0.13
Marion 1.2 NE Linn 0.09
Ely 0.5 SE Linn 0.10
COGGON, IA Linn 0.19
Cedar Rapids 3.4 NW Linn 0.22
Central City 6.7 W Linn 0.24
Ainsworth 7.4 N Washington 0.25
WASHINGTON, IA Washington 0.46



Posted under Precipitation Totals

This post was written by Schnack on April 17, 2013

April 17

TodayinWeatherHistoryFrom NWS
: A late season snow storm struck most of Iowa with the heaviest snow falling in an 80 mile wide band from northwest to southeast across the state. Reported snowfall amounts included 3.0 inches at Bloomfield, Chariton, and Keokuk, 4.0 inches at Boone and Knoxville, 5.0 inches at Albia, Jefferson, and Rockwell City, and 8.2 inches at Des Moines.

1967: A strong cold front swept across Iowa overnight on April 16-17, producing severe thunderstorms late on the 16th and extremely strong winds through the day on the 17th. On the evening of the 16th a destructive tornado produced F3 damage and resulted in two fatalities and 16 injuries in Van Buren County. During the day on the 17th a strong high pressure center building in quickly behind the front brought very strong winds across all of Iowa, with winds statewide averaging 30 to 45 mph and gusts in the 60 to 75 mph range recorded especially in northern and northwestern Iowa. Des Moines measured a peak gust of 63 mph, Ottumwa 67 mph, and Spencer 75 mph. Minor damage was done to buildings scattered around Iowa, tree limbs fell on cars and power lines, and waves 4 to 5 feet high “churned the Mississippi River into a froth”. Due to an early spring many fields had been plowed and the high winds lifted an incredible amount of topsoil, estimated at 25 million tons by a soil conservationist, creating the worst dust storms seen in Iowa since the 1930s. The dust cloud extended to as high as 6,000 feet above the ground and the blowing dust made driving hazardous, severely restricting visibility at times and covering the roads to such a depth that the pavement was difficult to see.

This Day in National/World Weather History …
 17 April 1922 → Seven tornadoes caused death and destruction along parts of a 210 mile swath from north of Ogden, IL to Allen County, OH, killing 16 people. There were three F2s, two F3s, and two F4s. A post card, picked up in Madison County, IN was found 124 miles away near Mount Cory, OH.
 17 April 1935 → A hailstone reportedly 8″ in diameter hit near Ponca City, OK.
 17 April 1952 → Massive flooding throughout the Northern Plains and Upper Midwest reached its peak. Large portions of the Dakotas, Minnesota, and Iowa were inundated. At Sioux City, IA the Missouri River raced by at 30 mph filled with telephone poles, trees, furniture, and other debris from upstream. In the Omaha/Council Bluffs area 30,000 people were evacuated. At St Paul, MN the Mississippi hit a record high and forced 7000 people from their homes.
 17 April 1953 → A storm containing hail, ice, snow, sleet, and rain battered Oklahoma, with 10,000 claims turned into insurance companies.
 17 April 2004 → A 182-day long streak of no measurable rain began in San Diego, CA. The streak ended on October 17.


Posted under Weather History

This post was written by Schnack on April 17, 2013