Weather Underground midday recap for Wednesday, May 21, 2014
A cold frontal boundary extended from the Intermountain West to the upper Midwest on Wednesday, while a cold front moved across the Southwest.
A cold front stretched from the southern Rockies to Michigan on Wednesday. As this system interacted with warm, muggy air from the Gulf of Mexico, strong to severe thunderstorms developed over the central Plains. Tornado watches were issued in southwest Wyoming and western Colorado due to severe thunderstorms over the two states. Just to the south, scattered showers and thunderstorms inched across eastern New Mexico, northern Texas and western Oklahoma. A cluster of strong to severe thunderstorms also developed along the eastern end of the frontal boundary, as severe thunderstorm watches were issued in Indiana, Ohio, West Virginia and northern Kentucky. Lebanon, Ind., reported 1.75 inch sized hail, while Idaho, Ohio, reported 2.00 inch sized hail. Heavy rain moved across the Northeast, as flash flood warnings were issued in central Pennsylvania. Clearfield, Pa., reported a midday total of 1.65 inches of rain, while Jamestown, N.Y., reported a midday total of 2.64 inches of rain. High pressure kept conditions clear across the Gulf Coast and the Southeast, as temperatures ranged between the 80s and 90s across the region.
A separate cold front pushed across the Four Corners on Wednesday. A low pressure system along the northern end of the frontal boundary triggered showers and thunderstorms across eastern California, southeast Oregon, Nevada and southern Idaho. The West Coast avoided wet weather due to a ridge of high pressure over the eastern Pacific. .
Temperatures in the Lower 48 states Wednesday have ranged from a morning low of 28 degrees at Stanley, Idaho to a midday high of 96 degrees at Woodward, Okla.