beavis1729

The UHI at MSP is ridiculous. At first I thought it mostly occurred in the winter due to more lower albedo, less radiational cooling over snow cover, etc. But it’s just as bad in the summer. St. Cloud, a bit north of MSP and much more rural, had a low of 70. It’s reasonable if UHI adds 2-3 degrees, but not 8. It’s a major problem that needs to be addressed by all of us, led by urban planners and engineers.

And INL hit 98, their first 90+ temp in June since 2005 and a new daily record high (old record 92 in 1988). All-time high is 103, June monthly high is 101. Records since 1897.

Grand Forks had an overnight low of 58, already up to 90 at 10 am.

^ Is that map relative to the new 1991-2020 normals? Would be interesting to see the same map, but vs. the 1961-1990 normals instead. In some areas, 1991-2020 is 2-4F higher than 1961-1990, due to a combination of background warming and UHI. I think the purples would become greens, and the greens would become yellows (in most areas).

And JVL had a low of 50 this morning...nice 40-degree diurnal range with the dry air. Current dew is 37, RH 16%.

Didn’t get as cold as the airmass could have enabled overnight, as the clouds held on for quite awhile. FEP, being very rural and having a longer period of clear skies, dropped to 33. DKB hit 35, and 39 here. Most of N IL was 37-41.

Ha...mostly just the drizzle and wind combined with the temps. Partly cloudy and 45 would be great.

Although I have to admit that 45F and drizzle at peak heating on May 28th isn’t so good. Seasons in seasons...

Wow...18F on May 28th.

Coldest low temps in MN this morning: Hibbing 21 Ely 23 Orr 23 Bemidji 24 INL 24 - new daily record (old record 27 in 1947)

And Marshfield isn't even in far northern WI; it's 44.67N. Light snow (1.75 mile vis), and 33/30 at 6 am. Area Forecast Discussion National Weather Service Green Bay WI 702 AM CDT Fri May 28 2021 Updated aviation portion for 12Z TAF issuance .SHORT TERM...Today...Tonight...and Saturday Issued at 405 AM CDT Fri May 28 2021 Scattered light rain across central and east central Wisconsin will end this morning as the upper low exits the southern part of the state. A little snow may mix in across central Wisconsin. Clearing skies are expected during the day as drier air advects in from the 1030 mb surface high centered over Lake Superior. Highs today will be much warmer than yesterday, but still about 15 to 20 degrees below normal for this time of the year. The computer models forecast the surface high to move into Wisconsin tonight, as a sharp upper ridge approaches from Minnesota. Clear skies, diminishing winds and very dry air are all favorable for temperatures to fall quickly tonight. In fact the precipitable water values forecast for tonight are near the all time lows for late May in the last 70 years of record keeping. Lows in the 20s are a good bet west of an Iron Mountain to Wausau line. Further east it will be in the low to mid 30s. Areas near the lake and bay may escape a frost or freeze but the remainder of the area looks likely to receive one. Record low temperatures are likely in a few places.

This is probably close to the coldest temps on record for so late in the season. The point forecast for INL is calling for an overnight low of 21. URGENT - WEATHER MESSAGE National Weather Service Duluth MN 322 PM CDT Thu May 27 2021 MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-280830- /O.CON.KDLH.FZ.W.0001.210528T0300Z-210528T1400Z/ Koochiching-North St. Louis-Northern Cook and Lake-North Itasca- Central St. Louis-Southern Lake-Southern Cook-North Cass- South Itasca-South Cass-Crow Wing-Northern Aitkin-South Aitkin- Carlton and South St. Louis-Pine-Douglas-Bayfield-Ashland-Iron- Burnett-Washburn-Sawyer-Price- Including the cities of International Falls, Ely, Isabella, Bigfork, Hibbing, Two Harbors, Silver Bay, Grand Marais, Walker, Grand Rapids, Pine River, Brainerd, Hill City, Aitkin, Duluth, Pine City, Hinckley, Superior, Washburn, Bayfield, Ashland, Hurley, Grantsburg, Spooner, Hayward, and Phillips 322 PM CDT Thu May 27 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 9 AM CDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 20 expected. * WHERE...Northern Cook and Lake, Koochiching, Southern Cook, North St. Louis, North Itasca and Central St. Louis Counties. This includes the Tribal Lands of the Grand Portage Reservation and the Bois Forte Band, Deer Creek, Lake Vermilion and, Nett Lake areas. * WHEN...From 10 PM this evening to 9 AM CDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Well said. I only came across James’s posts as an occasional observer in the NE forum; this is so sad. My thoughts are with his family, friends, and all who knew him well on this board. And congratulations to James for publishing his novel. It speaks of dedication, passion, and courage...no matter what stands in your way.

I think this is an urban legend. Besides how insane that would be (just seems to defy any logic)...I can't find any evidence of this occurring. Not that wikipedia is gospel, but the page below shows that MN's latest measurable snow is June 4th (1935)...and earliest measurable is September 14th (1964). No measurable snow has ever occurred in July & August. https://en.wikipedia.org/wiki/List_of_Minnesota_weather_records Plus, this page indicates the all-time record low for Grand Portage in July is 38F: https://en.wikipedia.org/wiki/Grand_Portage,_Minnesota

A dry cold front passed through Las Vegas yesterday, with some incredibly dry air...and cold temps for the time of year. At 3 PM yesterday, it was 85/-19, RH 1%. I've never seen an RH of 1% before, or even 2-3%. It may only hit the low 70s today, and drop into the low 50s tonight. Normals are 91/68.

Some low temps in IL this morning: DPA 30 ARR 30 JOT 32 FEP 32 Here 32...latest freeze imby since 5/18/2002 (31) DKB 33 IKK 34 SPI 34 (!) RFD 35 ORD 37

Actually dropped to 30 here this morning, one of the colder spots in IL as we avoided the clouds. ORD and RFD were in the mid 30s, and even the typical cold spots were 32-34 due to lingering cloud cover. Agree about tonight...thinking 33-35 here, maybe 30-32 in the cold spots. Still pretty chilly for May 12th.

Was looking through Chicago wx records, and came across a strange stat: the 1993-94 winter season is the only one in Chicago history with zero measurable snow March 1st or later. A few years had no measurable snow in March, but then there was some in April...but not so in 1993-94. This is an unexpected stat mainly because the 1993-94 winter was decent around here, with the arctic outbreak in January and then two good snowstorms in late Feb. I guess everything shut off completely after that. And, apparently Chicago had a trace of snow (not hail) on 5/25/1924...even as no temp records (low or low max) were set that day. Record low for May 25th is 32 in 1992 (latest freeze in Chicago history); record low max is 44 set in 1893.

FEP dropped to 27, DKB 31, JOT 33, RFD 34. It's maddening that even RFD has noticeable UHI now. Low of 34 here in what I'd call the "moderate UHI" area of SW Lake County IL.

Yep...high/low of 85/38 here today.

Ugh...too early in the season. Should take a trip to MKE airport...49 there, 86 here.

When I said "shocking" upthread, it wasn't so much related to expected future snowfall or any IMBY weenie view about winter fading away. It's from a climate/environmental perspective. People can debate how much of the change is being driven by UHI vs. background warming...but either way it's very bad when January mins increase 5F over 30 years. What will it be like in the next 50-100 years? Take your pick - either humans are significantly altering climo in specific locations significantly via development and parking lots and dark surfaces and buildings (and it's only getting worse)...or there is background warming happening very quickly. It also doesn't really matter if the general public appreciates warmer mins in January. Perhaps they would...but it doesn't fix the concern.

Thanks RC...I guess it’s good to know that RFD’s numbers are much less dramatic, and therefore nearly all of the increase is driven by UHI...although perhaps warmer lake temps could come into play too. But even a 0.3F increase in the annual mean temperature at RFD is noteworthy over such a short period of time. It’s a slow and steady bleed. Another piece of data, if I have my numbers right: ORD’s average low during mid January was 13F (1961-1990 normals), and is now 18F (1991-2020 normals). So, an increase of 5F over 30 years. Just speechless...

Wow. Unfortunately, your post is probably the most shocking in this forum's history, but will get overlooked by many. Probably deserves its own thread. Chicago is becoming St. Louis at night. This should also be a huge news story for the general public. Does anyone know the increase in average annual temp at ORD, after switching to the 1991-2020 normals?

RECORD EVENT REPORT NATIONAL WEATHER SERVICE FAIRBANKS AK 159 AM AKDT SAT APR 10 2021 ...RECORD LOW MINIMUM AND MAXIMUM TEMPERATURES SET AT FAIRBANKS YESTERDAY... FAIRBANKS RECORDED A LOW TEMPERATURE OF -27 DEGREES YESTERDAY. THIS SHATTERS THE PREVIOUS DAILY RECORD OF -16 DEGREES SET IN 1911. THE HIGH TEMPERATURE YESTERDAY WAS ONLY 3 DEGREES. THAT BREAKS THE PREVIOUS DAILY RECORD FOR COLDEST HIGH TEMPERATURE OF 11 DEGREES SET IN 1911. YESTERDAY WAS ALSO THE LATEST IN THE SEASON FOR A HIGH TEMPERATURE IN THE SINGLE DIGITS FOR FAIRBANKS ON RECORD. THE PREVIOUS LATEST WAS APRIL 7TH IN 1966.