Updated: 04/02/2014 12:09 PM
Created: 04/02/2014 12:03 PM KAALtv.com
(ABC 6 News) - ABC 6 News Stormtracker, Meteorologist Jim Peterson, says we could be in for some serious snow on Friday. It's still a early... but here's how things are shaping up for the moment.
TONIGHT: Look for rain to arrive around 4 PM in IA, 7 PM ish in MN. Temperature profiles still too warm, so keeping as rain during this time. We get a gradual change to rain/snow overnight, w/ a little freezing rain coming into the picture closer to sunrise, as temperature profiles aloft warm up, while surface looks to stay just below the freezing point. This will linger into the morning commute, so expect a slick commute heading to work. Evening should again stay all-rain, maybe a little of a mix after the 10 pm show.
THURSDAY: Very light rain showers, on/off throughout the day, as temperatures warm up to the lower 40s. A few rumbles of thunder will be possible in the heavier bands of rain Thursday, thundershowers will be hit and miss. A little of a rain/snow/sleet mix possible come the late afternoon/early evening. Better chance for this around/after sunset as temps continue to drop.
THURSDAY NIGHT: Surface low pulls closer to IA/MO border, wrapping moisture around the northern edge (our area) overnight. Looks like our temperature profiles aloft will be that to support the rain/snow/sleet/freezing rain combo again until the midnight hour, then they drop sub-freezing after that, meaning our all-snow event arrives say around 2, 3 a.m. Friday, and will stick around for some time.
FRIDAY: Surface low continues to deepen (strengthen), and move NE, w/ center around IA/IL border, upper level low west of that in IA. This puts us on the NW side of it = moderate/heavy wet snow bands possible. Maybe even a little thunder snow. More so from about 3 am Fri – noon Fri. Snow wraps up by 7 pm Friday. Totals will be in the 3-7” range locally along a line from about Rochester to Mason City. Heaviest to the north (~12” near Twin Cities) & lesser south, 1-3” expected in NE IA. Now the snow may be over by 7 PM, however the winds on the back of this storm will pick up, starting out of the NE around 3 am Friday, turning more out of the north by 10 am, and staying strong until early Saturday morning. Strong winds, even though it will be wet, will limit visibility throughout the day Friday, so travel will be tricky, not to mention the slick conditions from the wintry mix and the falling snow.