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KCRG TV 9 First Alert Forecast

KCRG TV9 FIRST ALERT FORECAST FOR WEDNESDAY, JUNE 28, 2017 

TODAY:  MOSTLY CLOUDY AND WINDY WITH SHOWERS AND THUNDERSTORMS. 

                SOME STORMS MAY BE SEVERE WITH HEAVY RAIN.  HIGH 77.  SOUTH

                WIND 15-30 MPH.

TONIGHT:  MOSTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS.   SOME STORMS MAY

                    BE SEVERE WITH HEAVY RAIN.  LOW 66.  

TOMORROW:  PARTLY TO MOSTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY,

                           MAINLY IN THE AFTERNOON AND EVENING.  HIGH 81. 

EXTENDED OUTLOOK FRIDAY THROUGH SUNDAY: 

A CHANCE OF SHOWERS AND THUNDERSTORMS FRIDAY, DRY SATURDAY AND SUNDAY.  HIGH’S IN THE 70’S & 80’S.  LOW’S IN THE 50’S & 60’S 

MISSISSIPPI RIVER STAGE AT DUBUQUE:  13-FEET & FALLING                   

 

    

  

KCRG Weather Blog

UPDATE: Severe weather potential Wednesday

Thunderstorms will be likely on Wednesday, and they’ll likely come in two rounds. The later round could produce severe weather. After midnight tonight, a complex of thunderstorms will march its way across the state, and enter eastern Iowa by after 4 AM on Wednesday. This round of storms is expected to be weakening as it enters the TV9 viewing area, but could still bring some gusty winds for the morning commute hours. Once the first round of storms moves out of the area, which is expected to be during the late morning hours on Wednesday, we will likely see a lull in the chances for storms until the mid to late afternoon. More storms are expected to develop over the TV9 viewing area after 3 PM, and move east across the area. This round of storms could have large hail, damaging winds, and a few tornadoes. Storm activity is expected to die down by midnight at the latest. Along with the potential for severe weather, there is also a threat of heavy rain. Rainfall totals of over 2’’ are possible by Thursday morning. Much higher localized amounts are certainly possible. Another round of storms is likely late Thursday and into Friday morning. One to two more inches of rain are possible.

How common are 60s and 70s in late June?

It’s common to have highs in the lower to middle 80s at the end of June. Right now, though, we’re in the midst of a seasonably cool weather pattern. Highs on Sunday were in the 60s to lower 70s, with lower 70s continuing on Monday. What makes this a bit notable is that it’s this cool without it being rainy. For parts of the area, it was the coolest rain-free late-June day in more than five years. This spell of below-normal temperatures does fall within the typical range of temperatures for June, though. In Cedar Rapids, June has an average of two or three days with highs in the 60s or cooler. 10 days are in the 70s, with 14 days in the 80s. As far as 90 or hotter, there are three or four of those, on average.

Even cooler temperatures Sunday afternoon

Get ready for Sunday folks. Highs are barely going to make it into the low 70s. For some the upper 60s is all you’ll get. At least the sun will continue to shine. Today will be dry! Monday we’re still cool with highs only topping out into the low 70s once again. The only difference is we’re dragging in the chance for a few more showers. The chance is very small and will begin early in the moving and last throughout the day. The scattered shower activity won’t be considered a soaking rain, just a few light showers. Of course the cool down won’t last as this is summer. However, we won’t warm up into the 90s like we were experiencing. As we warm back into the 80s by midweek, the weather will become a bit more active thanks to the warmth and moisture in the air.

Cool weekend ahead

A tremendously cool airmass by June standards will be impacting the upper Midwest this weekend. When you talk about the end of June averages, you are usually looking at highs into the 80-85 range and lows in the lower 60s. It'll be tough to ever get a colder airmass than this for the end of June as highs struggle to even get to 70 this weekend. The entire northern half will stay in the 60s. The breezy conditions and increase in clouds will actually put a bit of chill into the air at times. Valley locations should easily get down to the 40s at night. Getting this cold in the Summer will set up a battleground over the upper Midwest once warmth builds northward. This is good for keeping additional abnormal dryness at bay, but, you'll have a wait a while for the return of big heat.

UPDATE: Severe weather possible Thursday night

The warmth, mugginess, and a cold front moving in will trigger storms later today that will last through the evening hours. Timing with the storms look to be roughly around 6 PM for the northwestern portion of the viewing area. Central eastern Iowa timing looking to be roughly around 7 to 8 PM and the far eastern portions will experience the storms soon after. Storm activity will last throughout the overnight hours and diminish early Friday morning. A few storms have the potential to become severe. Wind and hail will be the main threats. An isolated tornado cannot be ruled out. Everyone is as risk for severe weather this evening. The image above shows the areas at most concern highlighted in yellow. Heavy rain will also become a concern. Rainfall totals look to stay around a half inch to over an inch for those who experience heavier thunderstorms. Once this front passes, our weather changes completely the other direction. Highs will only warm into the low 70s and for most of the weekend rain chances will stay limited.