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KCRG TV9 First Alert Forecast For Dubuque and the Tri-States

KCRG TV9 FIRST ALERT FORECAST FOR SUNDAY, JUNE 17, 2018 

              HEAT ADVISORY IN EFFECT THROUGH 7PM SUNDAY 

TODAY:  PARTLY CLOUDY, HOT AND HUMID. HEAT INDEX OF 100-105. WIND: S 10-20  WITH HIGHER GUSTS. HIGH 93

TONIGHT:  MOSTLY CLEAR. WIND: S 5-15. LOW 74

 TOMORROW:  PARTLY CLOUDY, HOT AND HUMID. HEAT INDEX OF 100-110. HIGH 95               

EXTENDED OUTLOOK TUESDAY THROUGH THURSDAY: 

A CHANCE OF STORMS LATE MONDAY INTO TUESDAY.  HIGH’S IN THE 70’S TUESDAY, IN THE 80’S WEDNESDAY AND THURSDAY.  LOW’S IN THE 60’S . 

MISSISSIPPI RIVER STAGE AT DUBUQUE:  11.4-FEET AND STEADY

 

 


KCRG Weather Blog

This week’s weather is a classic wet pattern for June

The overall weather situation this week is one that is notorious for producing multiple rounds of heavy rainfall. We are on the northern side of a stationary front this week, keeping us generally in the 70s for highs. As low pressure systems move along and just south of the front, the risk will be there for bouts of rain, some of which will be heavy and may lead to flash flooding. That could possibly turn into river flooding depending on where the heaviest rain falls and how much. Areas outlined in dark red are at highest risk for flooding this week. Rainfall totals may exceed three inches by the time the week is over. Isolated amounts over five inches are possible where storms move over repeatedly. We’ll need to keep an eye on our rivers for possible flood issues.

Heavy rain is possible Monday night

A cold front that has produced heavy rain the past few nights to our north will move into our area Monday night. Storms that move through eastern Iowa Monday night may produce heavy rain, and the highest chance of that happening is near and north of Highway 30. One to two inches of rain is possible in the heavy rain risk area, and locally higher amounts would occur in places where storms move through repeatedly. If that happens, flash flooding would be a threat. If that happens, be especially careful if you’re driving during the night. Water over the road is difficult to see at night. If you come across a flooded road, don’t try to drive through it! Turn around and go another way.

How common are heat advisories in eastern Iowa?

As expected, with the incoming heat through the weekend, the National Weather Service issued a heat advisory for the entire area. Heat advisories in eastern Iowa are issued when heat indices are forecast to be near or in the 100 to 105 degree range. In fact, heat advisories are issued nearly every year. We usually see one to three heat advisories issued per season. The average first date of a heat advisory in our part of Iowa is around July 7. The average last issuance is August 10.

Beyond the Weather: The solstice is coming

As we progress past the mid-point of June, we’ll have to watch for a clear night. This time of the year can be a bit humid to take a look beyond the weather, but at least it’s cooler at night! The Moon, Venus and Mercury will be an interesting trio to watch Thursday night through Saturday. Park your lawn chair where you have an unobstructed view of the western horizon. About an hour after sunset, you can find the crescent moon. Mercury will be very near the horizon. The bright object to the upper left of Mercury is Venus. The moon will appear higher off the horizon each night through the weekend. The summer solstice is also approaching. This year it occurs on the June 21st at 5:07 AM. This marks the time that the sun is directly overhead on the Tropic of Cancer, the farthest north part of the sun’s journey in our sky. From then until later in December, the amount of daylight will shorten each day. Happy stargazing!

Nearly a full year of drought in southern Iowa

Through all the flash flooding, tornado warnings, and high wind of the past five days, one thing still stands strong: southern Iowa drought. Something that’s been observed over the years is the tendency for a pattern to become stuck, or persistent. Drought tends to breed more drought, and that is no doubt the case for areas south of Interstate 80. In fact, the better part of a year has been characterized by at least moderate drought over portions of far southern Iowa. Meanwhile, farther north, wet weather continues to be persistent. This part of the state is favored for the rain chance Thursday night into Friday. Little to none will fall south of Interstate 80, unfortunately.