In the West, cool but dry weather favors fieldwork in California. Meanwhile, widespread rain and snow showers are further improving water-supply prospects across the northern Intermountain West.

On the Plains, cool, mostly dry weather prevails, following Monday’s scattered showers and thunderstorms. In general, soil moisture levels remain mostly favorable for winter wheat and emerging summer crops.

In the Corn Belt, cool, rainy weather is slowing or halting corn and soybean planting activities, but providing beneficial moisture for emerging summer crops.

In the South, scattered showers are confined to interior portions of the region. Elsewhere, dry, warmer weather is promoting fieldwork and crop development.

Outlook: Fruit producers in the Great Lakes and Northeastern States will continue to monitor their crops for signs of damage, following the recently ended cool spell. For the remainder of the week, a pair of storm systems will cross the nation, maintaining cool, showery conditions across the nation’s northern tier. Farther south, scattered showers and locally severe thunderstorms will develop along the storms’ trailing cold fronts. By week’s end, snow showers will subside across the Intermountain West. The NWS 6- to 10-day outlook for May 16-20 calls for near- to above-normal temperatures across the majority of the U.S. Cooler-than-normal weather will be confined to the western Gulf Coast region and the Northeast. Meanwhile, below-normal precipitation in the Midwest and Northeast will contrast with wetter-than-normal conditions in the Northwest and from the southern Plains into the Southeast.