UPDATED: Freeze Warning Through Wednesday, 10 a.m.
Tender young plant growth at risk in Fridley and southern Minnesota.
Updated (6 a.m. Tuesday): Freezing temperatures will again pose a hazard to plants in the Fridley area through Tuesday night/Wednesday morning, according to the National Weather Service.
The NWS extended its Freeze Warning for Fridley and much of central and southern Minnesota at 3:10 a.m. Tuesday. The warning, for "widespread sub-freezing temperatures," is in effect until 10 a.m. Tuesday and then again from 1 a.m to 10 a.m. on Wednesday.
"This may be particularly detrimental to tender vegetation and fruit trees which are budding in some areas," the NWS warning said.
Original post (6 a.m. Monday): Gardeners take heed: Fridley is included in a freeze warning issued overnight by the National Weather Service.
Temperatures falling into the 20s could endanger young plants and buds, the NWS predicted, so providing covers of sheets and blankets may be in order.
The warning is in effect from 1 a.m.–9 a.m. Tuesday. The NWS said:
Cold Canadian high pressure will begin settling south into the region today making for sub-freezing temperatures Monday night. Winds will not drop off entirely but cold air pouring in from the north will still push temperatures down into the 20s. ... Not only will temperatures be well below freezing but the below freezing readings may last for a few hours which could be particularly detrimental to tender vegetation and fruit trees which are budding in some areas.
Meterologist Paul Douglas, writing in the Star Tribune, initially name-checked Fridley as one of the suburbs that could expect a frost when the NWS warning was still only a freeze watch. With the warning issued, he continued to make that prediction—"I think the close-in suburbs may avoid a freeze, but a frost is likely tonight, again Tuesday night"—with the definition of a freeze as "3-4 or more hours colder than 28 F, cold enough to kill off a significant amount of plant life."
The freeze comes after a record-breaking string of warm days that ushered in an early spring, with local gardeners getting out ahead of schedule—not to mention wild animals and plants, as at Fridley's Springbrook Nature Center.