cyclone77 Posted July 4, 2012 Share Posted July 4, 2012 MLI was 93 at 11am. 94 at 1pm lol. Even Clinton is beating them. Link to comment Share on other sites More sharing options...
SpartyOn Posted July 4, 2012 Share Posted July 4, 2012 DTW @ 96. 100 not far away. Link to comment Share on other sites More sharing options...
BowMeHunter Posted July 4, 2012 Share Posted July 4, 2012 3 change underwear day for daddylonglegs HI 109 106 HI here Link to comment Share on other sites More sharing options...
Geos Posted July 4, 2012 Share Posted July 4, 2012 100° here at 1:15pm. First 100° in 13 years! Dewpoint continues to fall, now 63°. Link to comment Share on other sites More sharing options...
hm8 Posted July 4, 2012 Share Posted July 4, 2012 Several wunderground stations around my area showing 95/76/109. Sauna. Link to comment Share on other sites More sharing options...
turtlehurricane Posted July 4, 2012 Share Posted July 4, 2012 Interesting to see the stark contrast in conditions over a short area in northern IL. Freeport and Rochelle are both only at 92, but have dews at 75 and 77 respectively. Just north and east of those locations mixing is clearly better, with temps near 100 and dews in the 60s. Part of it may be the mixing may be the same at both locations, but due to the extreme amount of moisture being released in the areas to the south that the mixing is still inadequate enough to take care of the dews at the surface. Close but I'd put it differently, it's cooler there due to more moisture being released for sure, but I think it's more along the lines of moist air has a higher heat capacity, so equal amounts of heating across a moisture gradient results in varying rates of temperature increase. Taking a look at this: http://www.crh.noaa....RWR&issuedby=IL, I notice that the hottest locations (at 100-102) are the ones with the stronger winds and lower dewpoints. This suggests that mixing (or lack thereof) is critical today. I think it's more exact to say that the hottest locations have stronger and deeper thermals and therefore stronger mixing, rather than stronger mixing leading to hotter temperatures. Link to comment Share on other sites More sharing options...
Hoosier Posted July 4, 2012 Author Share Posted July 4, 2012 All-time record min for Chicago is 85. May be a little tough to get that but I'm sure some areas in the core of the city won't be dropping below the mid 80s. Link to comment Share on other sites More sharing options...
Geos Posted July 4, 2012 Share Posted July 4, 2012 103 In Middleton, 102 in Janesville/Kenosha, 101 Rockford, 100 Watertown, Madison, Boscobel & Waukegan Lately Kenosha has been beating most locations in the region. The Kenosha airport is as far west as the city limits go out by I-94 - about 7 miles from downtown. Link to comment Share on other sites More sharing options...
cyclone77 Posted July 4, 2012 Share Posted July 4, 2012 99/70 here. Also 99 up the river in Sterling. Link to comment Share on other sites More sharing options...
Chicago Storm Posted July 4, 2012 Share Posted July 4, 2012 It's up to 100 here. Link to comment Share on other sites More sharing options...
turtlehurricane Posted July 4, 2012 Share Posted July 4, 2012 The DVN tropopause temperature from 00z yesterday evening was -70 °C at ~15.5 km, extremely cold and comparable to the tropics (though I often saw -80 °C in Miami). Let's see how cold it'll get today with these blazing temps, the hotter it is at the ground the more the troposphere inflates, and therefore the air at the tropopause is colder since it undergoes more expansional cooling before reaching it. Link to comment Share on other sites More sharing options...
Hoar_Frost Posted July 4, 2012 Share Posted July 4, 2012 Close but I'd put it differently, it's cooler there due to more moisture being released for sure, but I think it's more along the lines of moist air has a higher heat capacity, so equal amounts of heating across a moisture gradient results in varying rates of temperature increase. I think it's more exact to say that the hottest locations have stronger and deeper thermals and therefore stronger mixing, rather than stronger mixing leading to hotter temperatures. Agreed. Your explanation gets closer to the root of the matter. Link to comment Share on other sites More sharing options...
Hoar_Frost Posted July 4, 2012 Share Posted July 4, 2012 I have reached 100. Dewpoint is 66 and down from earlier. Link to comment Share on other sites More sharing options...
frostfern Posted July 4, 2012 Share Posted July 4, 2012 I'm on vacation is Seattle now. Only in the low 70s here. lol I see it's currently 98/72 back in GRR. My mother called and said she is attending a parade outside and it's absolutely miserable. Link to comment Share on other sites More sharing options...
WxMidwest Posted July 4, 2012 Share Posted July 4, 2012 Lately Kenosha has been beating most locations in the region. The Kenosha airport is as far west as the city limits go out by I-94 - about 7 miles from downtown. Makes sense, further inland rural area defined by continentality not as influenced from the Lake. On Another Note, Middleton just hit 104.... Link to comment Share on other sites More sharing options...
Chicago Storm Posted July 4, 2012 Share Posted July 4, 2012 ORD is up to 102...which ties the record for the date (102 - 1911). RFD is also up to 102, which breaks the record for the date (101 - 1911). Both were intra-hour OBS. Link to comment Share on other sites More sharing options...
cyclone77 Posted July 4, 2012 Share Posted July 4, 2012 I'd be curious to see what's causing certain areas to mix better than others. MLI didn't mix very well yesterday either, but on Monday they mixed out quite well. None of the models (that I've noticed) have handled this well at all. Many of the models (except GFS) show the whole area with deep mixing today. EDIT: Jesus I can't type. Link to comment Share on other sites More sharing options...
Geos Posted July 4, 2012 Share Posted July 4, 2012 I'm on vacation is Seattle now. Only in the low 70s here. lol I see it's currently 98/72 back in GRR. My mother called and said she is attending a parade outside and it's absolutely miserable. Jealous! Enjoy that nice air! Good thing it doesn't get that hot there, most don't have AC. 101° here now, dewpoints steady. Cumulus starting to flare off now. Link to comment Share on other sites More sharing options...
MN Transplant Posted July 4, 2012 Share Posted July 4, 2012 94/80 in Hutchinson, MN. Upper 70s DP well up into northern MN. Link to comment Share on other sites More sharing options...
MN Transplant Posted July 4, 2012 Share Posted July 4, 2012 DTW @ 96. 100 not far away. 99 now. DET at 98. Ann Arbor 101. YIP 102. Link to comment Share on other sites More sharing options...
Stebo Posted July 4, 2012 Share Posted July 4, 2012 99 at DTW, several places in the state over 100, Ann Arbor/K-zoo/Battle Creek all at 101, and Willow Run at 102. 99 breaks the record of 98 which occurred in 1990. Link to comment Share on other sites More sharing options...
wisconsinwx Posted July 4, 2012 Share Posted July 4, 2012 Watching the thermometer reading hover at 99.9F for 5 minutes, and then glancing away the moment it hit 100.0F FTL! Link to comment Share on other sites More sharing options...
IWXwx Posted July 4, 2012 Share Posted July 4, 2012 South Bend sitting at 100° at 3PM, breaking their old record of 99° set in 1911 & 1921. Point forecast only had them getting to 97 today. Link to comment Share on other sites More sharing options...
Geos Posted July 4, 2012 Share Posted July 4, 2012 Milwaukee hit 100°! Temp holding steady at 101° here. Link to comment Share on other sites More sharing options...
magoos0728 Posted July 4, 2012 Share Posted July 4, 2012 103 at Kenosha Airport--getting closer to the all-time record. Still think it funny that at 1:03 they wrote THE HOTTEST DAY LOOKS TO BE THURSDAY...WITH HEAT INDEX VALUES MAINLY 100 TO 110. Can't imagine Thursday being hotter than today...maybe I don't want to..... Link to comment Share on other sites More sharing options...
cyclone77 Posted July 4, 2012 Share Posted July 4, 2012 101/69 on my weather station. Seems a bit warm compared to other sites, but it is what it is. Link to comment Share on other sites More sharing options...
hm8 Posted July 4, 2012 Share Posted July 4, 2012 HIs in the upper 100s across SEMI Link to comment Share on other sites More sharing options...
Tropical Posted July 4, 2012 Share Posted July 4, 2012 Up to 100 here. First time since 1995. Loving this! Sent from my M865C 2 Link to comment Share on other sites More sharing options...
Hoosier Posted July 4, 2012 Author Share Posted July 4, 2012 Why ORD will have a chance to make history: 12z NAM Skew-T's for ORD Thu/Fri afternoon: Notice the dry adiabatic lapse rates from the surface to roughly 700 mb, which is even better than what was progged for today. Should this regime pan out then there is certainly a chance. Link to comment Share on other sites More sharing options...
kab2791 Posted July 4, 2012 Share Posted July 4, 2012 4PM: DTW: 101/69/108 DET: 100/69/107 Link to comment Share on other sites More sharing options...
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