Round after round of showers and thunderstorms are forecast to take aim over portions of the Upper Midwest and northern Plains into the week of June 18, raising concerns for flash and urban flooding.
Drought conditions and dangers from wildfires continue to build over the Four Corners and central Plains. However, a storm track from the northern Rockies to the upper Great Lakes will bring frequent episodes of rain farther north.
While the exact track of the nearly daily storms will vary slightly from day to day, inches of rain will add up in parts of the Dakotas, Minnesota, Iowa, Wisconsin, the Upper Peninsula of Michigan and neighboring northwestern Ontario.
In a few spots, the pattern could bring 6 inches to 1 foot of rain through the week of June 18.
Drenching downpours will fall over some, but not all, of the dry spots.
The bulk of the rain will miss some of the neediest areas of the corn belt, where the heat will build into the weekend including portions of Illinois, Indiana, Missouri and Kansas.
Rainfall has been very spotty around the northern Plains and the Upper Midwest since early May.
Minneapolis has received nearly twice their normal rainfall from May 1 to June 12 with about 9.75 inches. Meanwhile, Fargo, N.D., has had less than 2.00 inches during the same period.
Rainfall in a large swath from Kansas to Indiana, Ohio and the Lower Peninsula of Michigan has ranged from 25 to 50 percent of normal from May 1 to June 12.
While this may not sound serious, soil evaporation rates during sunny, warm weather this time of the year can reach around one quarter of an inch per day.
The dry weather and building heat is raising concern for the the corn crop in part of the area.
This story was originally published on Tuesday, June 12, 2012.
The best threat for severe weather late Saturday will be near the Red River Valley to Southeast Texas.
Showers and thunderstorms threaten to interfere with Memorial Day festivities across more than half of the United States.
Rounds of heavy rain and strong thunderstorms will continue the threat of major flooding in the southern Plains through Memorial Day.
Memorial Day marks the unofficial start to summer and it will definitely feel like it for the holiday and the following few days across the Northeast. However, that does not mean an end to shots of cooler air.
Beachgoers heading to the Southeast coast this Memorial Day holiday weekend are being put on alert for dangerous rip currents.
Warmth will make a comeback around the Boston area for the remainder of this Memorial Day holiday weekend, seemingly fitting for the unofficial start to summer.
West Coast (1982)
Heat wave: San Francisco, CA 91 degrees, (new record; previous record 79 in 1975) San Jose, CA 84 degrees Portland, OR 85 degrees (tied record)
North Texas (1986)
Severe thunderstorms produced 95 mph wind gusts and widespread damage. More than 3" of rain fell in less than an hour. A 29 year old women and 6 year old daughter drowned when the underpass they were driving into was flooded out.
Philadelphia, PA (1992)
A dramatic cold frontal passage. Early afternoon temperature over 80 degrees fell to a late-day reading in the 40s.