90 Degree Days

September 2, 2015

 

It is not unusual to have some hot and humid days in September. Our recent warm and humid days will continue like this through the weekend.

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There is relief in sight.

 

 

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Rare Supermoon Lunar Eclipse

September 2, 2015

The September full moon is called a Harvest Moon. It is the full moon closest to the September equinox (first day of fall…September 23). This moon will look 14% larger because it is closer to Earth getting the recognition as a supermoon. Now this will come at the same time as a lunar eclipse. The combination of a supermoon and lunar eclipse to happen at the same time is rare. It has only happened five times since 1900:
1910
1928
1946
1964
1982

and now in 2015 (September 27). The next time this happens will be 2033.

We will be able to see the entire eclipse.
eclipse-moon-9-27-28-2015-shadowandsubstance1

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Click here and here for additional information.

 

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Waterloo Summer Rain

September 1, 2015

Summer (June/July/Aug) rain total for Waterloo was 14.38″. It was the wettest summer since 2010 and ranks 21st overall.

5

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Waterloo’s Top Ten Rainiest Days

August 29, 2015

Yesterday, 8/28/2015, Waterloo recorded 4.10″ of rain. This smashed the daily record rainfall of 2.30″set back on that date in 1936. 4.10″ is also the 8th highest daily record rainfall report in Waterloo since records began 120 years ago. Below are the top 10 rainiest days in Waterloo according to the National Weather Service:

  1. 6.00″ on September 8, 1941
  2. 5.49″ on July 2, 1999
  3. 5.31″on July 16, 1968
  4. 5.25″ on July 30, 1942
  5. 4.92″ on August 20, 1966
  6. 4.50″ on September 19, 1919
  7. 4.35″ on June 15, 1980
  8. 4.10″ on August 28, 2015
  9. 4.06″ on July 17, 1968
  10. 4.00″ on August 19, 1912 and September 26, 1915
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24 Hour Rain Totals

August 29, 2015

rain

7 AM Friday to 7 AM Saturday

*Note: It was raining before 7 AM Friday. This is not event total.*

Location County 24-Hr
Waterloo Black Hawk 3.99
Dubuque Dubuque 1.21
Cedar Rapids Linn 0.49
Iowa City Johnson 1.24
Ainsworth 7.4 N Washington 0.10
Amana 4.7 W Iowa 0.72
Anamosa 3SSW, IA Jones 1.03
Cedar Rapids 3.4 NW Linn 1.28
Central City 6.7 W Linn 1.63
CHARLES CITY, IA Floyd 1.90
COGGON, IA Linn 2.13
COLWELL, IA Floyd 1.59
Coralville 1.8 NW Johnson 0.81
CRESCO 1NE, IA Howard 1.31
Decorah 7.9 ENE Winneshiek 1.24
Dubuque #3, IA Dubuque 1.24
Dubuque L&D 11, IA Dubuque 1.39
FAYETTE, IA Fayette 2.74
GRUNDY CENTER, IA Grundy 4.27
GUTTENBERG L & D 10, IA Clayton 2.51
IOWA CITY, IA Johnson 1.44
IOWA FALLS, IA Hardin 4.11
LOWDEN, IA Cedar 1.35
MAQUOKETA 4 W, IA Jackson 1.92
Monona WWTP, IA Clayton 2.37
Monticello, IA Jones 1.41
New Hampton 0.4 SW Chickasaw 1.85
Nora Springs 2.4 SSE Floyd 1.75
NORTH ENGLISH, IA Iowa 1.41
Oelwein 0.8 WNW Fayette 2.35
Parnell 0.1 SSW Iowa 1.40
Robins 0.4 SSE Linn 1.41
SHELL ROCK, IA Butler 3.32
TRIPOLI, IA Bremer 2.74
VINTON, IA Benton 1.44
VOLGA 1NE, IA Clayton 3.35
Walker 3.5 NE Buchanan 1.85
WASHINGTON, IA Washington 0.10
Waterloo 3.0 NNW Black Hawk 4.02
WILLIAMSBURG 3 SE, IA Iowa 0.94

 

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This post was written by Denice Pelster
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Potential Flooding on Area Creeks & Rivers

August 28, 2015

flooding

After several inches of rain fell across northwestern parts of the KWWL viewing area, some area creeks and rivers have the threat for minor to moderate flooding.  The National Weather Service has issued a Flood Warning for portions of the Iowa River, Beaver Creek and Black Hawk Creek.  Here are the statements from the National Weather Service:

The National Weather Service in Des Moines has issued a Flood
Warning for all or portions of the following rivers in Iowa...Iowa
River...Beaver Creek...Black Hawk Creek...

  Affecting the following counties in Iowa...Black Hawk...Butler...
  Marshall

.Heavy rainfall since last night will lead to minor flooding along
portions of the Iowa River. Minor flooding is expected along
portions of Beaver Creek in the New Hartford area. Moderate
flooding is expected along portions of Black Hawk Creek in the
Hudson area.

River forecasts include observed precipitation...as well as expected
precipitation over the next 24 hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you encounter a flooded area...turn around and find an alternate
route. Turn around...do not drown.

More information...including impact statements and crest histories
is available on the Web at...  www.weather.gov/desmoines. Click on
the Rivers and Lakes link.

&&

IAC013-023-300239-
/O.NEW.KDMX.FL.W.0043.150829T1056Z-150831T0600Z/
/NHRI4.1.ER.150829T1056Z.150829T1800Z.150830T0600Z.NO/
939 PM CDT FRI AUG 28 2015

...Flood Warning in effect until early Sunday morning...

The National Weather Service in Des Moines has issued a
* Flood Warning for
  The Beaver Creek at New Hartford...or From Johnson Creek near
  Parkersburg...to the Cedar River.
* Until early Sunday morning.
* At  8:00 PM Friday the stage was 4.6 feet...or 7.4 feet below Flood
  Stage.
* Flood Stage is 12.0 feet.
* No flooding is occurring and Minor flooding is forecast.
* Forecast...rise to Flood Stage Saturday morning. Continue rising to
  12.9 feet...or 0.9 feet above Flood Stage...Saturday afternoon. Go
  below Flood Stage early Sunday morning.
* Impact...At  11.0 feet...Extensive agricultural flooding occurs
  south of town.

 

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Friday Preliminary Rain Totals

August 28, 2015

An area of low pressure is tracking through the state, producing heavy rainfall across parts of the KWWL viewing area.  Hometowns north of Highway 30 have taken the brunt of the heavy rain, and areas of flash flooding.  Here are some preliminary rain totals coming into the Forecast Center (as of 8PM Friday, August 28th).

rain

Waterloo 3.57″
Dubuque 0.54″
Cedar Rapids 0.13″
Iowa City 0.02″
1 E Independence 3.10″
1 WNW Independence 2.20″
Belle Plaine 1.28″
Cedar Falls 3.49″
Charles City 1.42″
Dorchester 0.82″
Eldorado 0.90′
Elkader 0.80″
Evansdale 2.60″
Fayette 1.08″
Garber 0.35″
Grundy Center 3.90″
Hudson 2.90″
Ionia 1.52″
KWWL in Waterloo 3.10″
Littleport 0.47″
Nora Springs 1.69″
Parkersburg 4.50″
Quasqueton 1.43″
Riceville 1.38″
Van Horne 1.20″
Waterville 0.74″
Watson 0.77″
Wellsburg 5.10″
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Friday Rain Update

August 27, 2015

Our dry stretch of weather for this week is coming to an end.  An area of low pressure is developing over Nebraska and will track through Iowa Friday and Friday night, with showers and a few isolated thunderstorms overspreading the area.

d13_fill

The heaviest rain is forecast to be just north of the low pressure’s track, which would put the bulls-eye in parts of north central Iowa and southern Minnesota.  Those areas could see 2+”.  Hometowns like New Hampton, Decorah. Dubuque and Waterloo could see 1″+, with a quarter to half inch (isolated higher amounts possible).   South of Highway 20 (Cedar Rapids, Iowa City, Washington) could see a quarter to half inch of rain through Friday night.

We dry out early Saturday, and remain dry through at least the middle of next week.

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24 Hour Rain Totals

August 23, 2015

rain

7 AM Saturday to 7 AM Sunday

Location County 24-Hr
Waterloo Black Hawk 0.28
Dubuque Dubuque 0.08
Cedar Rapids Linn 0.18
Iowa City Johnson 0.10
Belle Plaine Benton 0.30
Central City 6.7 W Linn 0.13
CHARLES CITY, IA Floyd 0.20
Clayton Center Clayton 0.23
Dubuque #3, IA Dubuque 0.10
Dubuque L&D 11, IA Dubuque 0.10
ELKADER 6SSW, IA Clayton 0.16
Grundy Center Grundy 0.35
GUTTENBERG L & D 10, IA Clayton 0.14
HAMPTON, IA Franklin 0.54
Iowa City Johnson 0.10
IOWA CITY, IA Johnson 0.16
KESLEY 3 NNE, IA Butler 0.55
LOWDEN, IA Cedar 0.09
MAQUOKETA 4 W, IA Jackson 0.15
Monona WWTP, IA Clayton 0.22
NASHUA 2SW, IA Floyd 0.50
Oelwein 0.8 WNW Fayette T
Parnell Iowa 0.20
Toledo Tama 0.17
TRIPOLI, IA Bremer 0.14
VOLGA 1NE, IA Clayton 0.20
WASHINGTON, IA Washington 0.09
WILLIAMSBURG 3 SE, IA Iowa 0.20
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Weekend Rain Chances

August 20, 2015

It is a beautiful summer day with comfortable temperatures and low humidity. The only problem might be the gusty wind. You can see how clear the sky is over Iowa on is satellite image from this afternoon.

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Our weather is going to be dry for most of the next seven days. We are tracking a cold front forecast to push through Iowa this weekend. There is a slight risk of severe storms to our northwest Saturday evening, ahead of the cold front. Also ahead of the cold front will be high temperatures in the low 80s. The humidity level won’t be bad.
KWWL 2015 MAX Storm ED
The storms are forecast to weaken overnight as they move east. Here is the potential timing of the weakening storms across Iowa. As Saturday gets closer the timing may get adjusted a little bit, but as of right now the rain and isolated storms will push across eastern Iowa at night.

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The map below shows the possible rain amounts (about 0.50″ in some locations) Saturday night for eastern Iowa.


3The map below shows the forecast position of the cold front Sunday morning.

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Behind the cold front, Sunday, the sky will become mostly sunny with a gusty northwest wind and afternoon highs in the low 70s.

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