mjwise

The SREF plumes are fun across MN. Marshall area in western MN seems to be the max. The 9Z mean is 26.8", with a range of 17.5" to 36.8".

Somehow it got down to 1 degree in DeKalb last night. I swear the point and click low was a solid 10 degrees (or more) above that. ETA: Yep, per the Zone forecast: De Kalb- Including the cities of DeKalb and Sycamore 814 PM CST Thu Jan 26 2023 .REST OF TONIGHT...Partly cloudy. Lows around 11. Southwest winds 10 to 15 mph.

Yes. Seems like there hasn't been a full latitude CONUS trough predicted for some time, complete with the hardly ever seen 90% Below contour. Point and click high for Sat and Sun is 33 here.

ECMWF and GFS are both advertising a pretty potent temp drop plowing through eastern Nebraska and western Iowa Thursday evening - mid 60's to mid 20's in about 6 hours.

Not severe here, but that was a howling wind and cloud of leaf debris that just swept over us.

Just a quick storm last night, but Dekalb has had 1'+ of rain since August 1. What a run after a dry aug/sep the last two years.

I glanced at a few model soundings and it looked like it was mixing to something like 550mb or 600mb in the plains. It's done this a few (or more...) times this year. Mixing is only part of the problem though. The GFS in the medium to long range tends to get constipated and just amplifies existing features in situ beyond all reasonable bounds. It's not just ridges; the GFS amplified some mega-cutoffs in the spring/early summer too where a ULL would just sit and spin and get deeper and deeper at 500mb for days on end.

Not severe locally (DKB airport gusted to 40MPH) but two quality storms in two days is nice.

91 reached at Midway. Warmest day in DeKalb in 3 weeks, a juicy 83/76 out.

90's in DeKalb: May - 3 June - 6 July - 2 August (assuming current forecasts hold true through the 31st) - 1 (only a 91, and we haven't had a high over 82 since that) May and June had me thinking we were in for a real steamer on par with 2012, but summer in most of this subforum just kind of rolled over after the solstice heat.

Strong E-W gradient to precipitation this month in northern Illinois. DeKalb is up to 6.48" for the month, 1.7" from this last system. Freeport is the bullseye, over a foot of rain this month. Looks like spring outside here.

ARW/ARW2 seemed to do the best. HRDPS and RGEM in second. GGEM/CMC best of the globals. The NAM, FV3 and the rest of the globals (and their ensembles) far behind that. GFS probably in dead last - forecasting 0.1" for a city that got a foot of rain in the ensuing 36 hours. I wish the forecasting of LLJ-driven events was just a little better - they have historically produced the most severe/acute summer flood events in this part of the country and they still are just not modeled well at all. Same issue a decade+ ago. Convection is hard to model well, but the globals are still far away.

DeKalb officially ended up with 4.3" over about 30 hours from Sunday ~4AM to Monday ~10AM. Biggest rain event since I moved here a few years ago, and totals northwest were far higher. It's another under- or impoperly-modeled nocturnal LLJ event to add to a growing list this year, reminiscent of 2011. The GFS and the ECMWF were both poor, displacing the axis precipitation a hundred or more miles north just a few hours out, predicting a few tenths for locations that got nearly a foot of rain. (The mesoscale models managed it better as far as placement but still undermodeled the totals by a lot)

Dekalb ended up with more 90s in May (3) than July (2). Would not have guessed that at the beginning of July.

Make that 85/81.

Winds maxed out in the upper 40's I think around here overnight - I slept through it. More interesting was the amount of warmth and moisture at low levels of the atmosphere. Before the line came through, KDKB achieved an 80 degree dewpoint with an 80/80 temperature reading...at 2am. There was also this sounding at MPX.

Everything about what is going down in the PNW is crazy. Like getting to 115 degrees in Chicago crazy. All-time record highs are going to be smashed by big margins all over the place if the models actually verify. And the scariest part of all? The GFS has led the way the whole time...

Just got warned. EDIT: Easily the best storm in the year I've lived here.

Schaumberg, hope you're cashing in on this WAA wing of storms. Nice light show down my way at least. We lucked out a week and a half ago with that small stalled cell in Dekalb - I know sycamore has seen almost nothing in June.

Best (Only?) T-storm of the season in DeKalb. Hadn't looked at point and click since Wednesday when there was a 0 pop and 90's forecast, so this is a pleasant surprise.

Not coming down as it is points east and southeast, but decent snow and 1 degree in DeKalb. -20 wind chill. Coldest I've ever experienced accumulating snow.

Finished with about 4" of the fluffiest snow I've ever seen in DeKalb. The ratio on this stuff has to be 25:1 or better. Weirdly enough, it kind of plastered the trees.

Parachutes in Dekalb at 6 degrees. I don't think I've ever seen snow at this rate at this temperature before. Only seen sugar grinders or flurries below 10 degrees.

Moderate snow in Dekalb. 28/17 just before it began.