All Clear For MSP (6+ rains flood Northfield and Cannon Falls)
June 14, 2012 — 7:27pm
All-Clear For MSP. The swarm of severe storms that brushed the south metro is pushing slowly toward Rochester, Wabasha and Winona. Severe storm warnings are posted just north of Rochester for 60 mph gusts and 1-2" diameter hail. Severe storms continue to pound the far south metro, some 6"+ rainfall amounts from near New Prague to Northfield to Cannon Falls, where some roads are said to be impassable. Think twice about driving south of MSP this evening - you will run into some flooded roads, hail and streams out of their banks. No reports of tornadoes - the risk is torrential, tropical rains, and 1-2" diameter hail. The risk is pretty much over now for the immediate Twin Cities.
From the MPX NWS office:
LAW ENFORCEMENT HAS REPORTED THAT SOME ROADS ARE IMPASSIBLE BETWEEN NORTHFIELD AND NERSTRAND.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN THE TWIN CITIES.
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Shocking: meteorologists actually have something to do, which may be an anomaly in this El Nino-warmed winter that's setting up. A surge of southern moisture will spark steady, slushy snow - resembling something we might experience in March vs. December. By the time the flakes stop flying late Tuesday much of the area will have 5-8", a few towns may boast up to 10" of heavy, wet snow. Hey, it's winter in Minnesota. It's supposed to snow!
Well this is unusual: a risk of an actual "storm"? I'm sorry, an inch of snow in late November doesn't qualify. But a slow-moving surge of moisture approaching from the south may drop enough snow to shovel and plow late Monday into midday Tuesday. It's still premature to lob around inch-amounts, but on our (patented) scale from nuisance to plowable to crippling this could definitely wind up in the plowable category. Stay tuned...
Well, we had our Thanksgiving excitement: 1.3" of slush at MSP International Airport; more south and east, less north and west. Just enough to remind us that the start of meteorological winter is a few days away. On paper. There still isn't much in the way of bitter air showing up within a few thousand miles of Minnesota; I see a mild bias continuing into mid-December, possibly longer. We'll see snow and cold fronts, just not the volume we're accustomed to.
Somewhere along the way an inch of snow became a "storm". BREAKING NEWS! When temperatures are near 32F as they will be today an inch of snow is a nuisance, most major roads stay wet with accumulation on lawns, fields, and slow-moving relatives. There probably will be some slippery roads by late afternoon and evening, especially south/east of MSP, where a couple inches may pile up. Since we've all forgotten how to drive on snow please be careful out there! Better yet, stay home, have an extra plate of food and ponder the many things we all have to be thankful for.
While many are planning on traveling over the next couple of days, a storm system will wrap up over the Central U.S., making for a few trouble spots. The good news is that significant snowfall tallies look unlikely close to home as the storm passes to our south, but rain changing to light snow Wednesday into Thursday may make for a slower commute. Check the blog for more details. -Todd Nelson