The atmospheric ingredients for severe thunderstorms --warmth, high humidity, an approaching cold front, a 45-m.p.h. low-level (5,000 feet) jet stream and a vigorous disturbance at higher levels---are falling into place Friday. It's a situation that favors the development of thunderstorms with large hail and damaging outflow winds this afternoon and evening. Heavy rainfall and flash flooding are additional concerns, especially considering
our soggy soils.
Summer arrives, big time
Until now, the temperatures that Chicagoans associate with summer have been sporadic and short-lived. By this time next week, however, summer heat and humidity will have arrived in Chicago, and computer models suggest it will be more than a one- or two-day tease. Rather, the onset of a new and warmer weather regime across the Midwest suggests, for Chicago, a multi-day string of afternoon temperatures near or above 90 degrees, accompanied by uncomfortably high humidity. The timing is appropriate: Summer (astronomical summer) begins on June 21.
our soggy soils.
Summer arrives, big time
Until now, the temperatures that Chicagoans associate with summer have been sporadic and short-lived. By this time next week, however, summer heat and humidity will have arrived in Chicago, and computer models suggest it will be more than a one- or two-day tease. Rather, the onset of a new and warmer weather regime across the Midwest suggests, for Chicago, a multi-day string of afternoon temperatures near or above 90 degrees, accompanied by uncomfortably high humidity. The timing is appropriate: Summer (astronomical summer) begins on June 21.
