BeastFromTheEast Posted September 28, 2011 Share Posted September 28, 2011 Just had another great quick-hitting storm. It was raining cats and dogs and the thunder was pretty impressive for such a stable atmosphere. Easily picked up a half inch in the 30 minutes or so it has rained. Yep, im getting some great lightning and torrential rain. Link to comment Share on other sites More sharing options...
BowMeHunter Posted September 28, 2011 Share Posted September 28, 2011 Misses me but I can hear the thunder. Link to comment Share on other sites More sharing options...
Chicago WX Posted September 28, 2011 Share Posted September 28, 2011 The high temperature of 57º yesterday at LAF was the first sub 60º high temp since May 15th. The normal high temp for September 27th is 73º. Chilly. Link to comment Share on other sites More sharing options...
radionicist Posted September 28, 2011 Share Posted September 28, 2011 We'll be glad to see the upper low move out - we sure don't need any more rain. Despite the hot, dry summer, we're still well above normal for precipitation through 2011. Link to comment Share on other sites More sharing options...
A-L-E-K Posted September 28, 2011 Share Posted September 28, 2011 Just had another great quick-hitting storm. It was raining cats and dogs and the thunder was pretty impressive for such a stable atmosphere. Easily picked up a half inch in the 30 minutes or so it has rained. the atmosphere wasn't stable, lapse rates have been steep for days, especially over the lake. Link to comment Share on other sites More sharing options...
A-L-E-K Posted September 28, 2011 Share Posted September 28, 2011 pretty cool precip map Link to comment Share on other sites More sharing options...
Chicago WX Posted September 28, 2011 Share Posted September 28, 2011 7 day total precip through yesterday morning. Kind of a neat map as it shows the cut-off spinning around the Midwest. EDIT: great minds think alike. Link to comment Share on other sites More sharing options...
A-L-E-K Posted September 28, 2011 Share Posted September 28, 2011 your's is better Link to comment Share on other sites More sharing options...
Chicago WX Posted September 28, 2011 Share Posted September 28, 2011 your's is better Both maps are cool. Neat system in an otherwise dull September. Link to comment Share on other sites More sharing options...
A-L-E-K Posted September 28, 2011 Share Posted September 28, 2011 Both maps are cool. Neat system in an otherwise dull September. yeah the cloud formations have been pretty cool to watch, especially when the center was over the southern tip of the lake. Link to comment Share on other sites More sharing options...
A-L-E-K Posted September 28, 2011 Share Posted September 28, 2011 nice cells continuing to scrape the shore here. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 28, 2011 Share Posted September 28, 2011 Just had another great quick-hitting storm. It was raining cats and dogs and the thunder was pretty impressive for such a stable atmosphere. Easily picked up a half inch in the 30 minutes or so it has rained. pretty sure it wasn't stable.. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 28, 2011 Share Posted September 28, 2011 Link to comment Share on other sites More sharing options...
turtlehurricane Posted September 28, 2011 Share Posted September 28, 2011 6z GFS has 850 winds hitting 65 mph tomorrow night over Madison. However, if there aren't showers, overnight stability could easily keep surface gusts below 25 mph. Link to comment Share on other sites More sharing options...
wisconsinwx Posted September 28, 2011 Share Posted September 28, 2011 the atmosphere wasn't stable, lapse rates have been steep for days, especially over the lake. What I meant was it was relatively stable over land. I tend to look at juice in the atmosphere as the main element of instability. The storm yesterday blew up over land, so even though the lake was unstable, it was over land that it intensified. MKX expected only isolated thunder, and it turns out we got a lot more than that. Link to comment Share on other sites More sharing options...
A-L-E-K Posted September 28, 2011 Share Posted September 28, 2011 What I meant was it was relatively stable over land. I tend to look at juice in the atmosphere as the main element of instability. The storm yesterday blew up over land, so even though the lake was unstable, it was over land that it intensified. MKX expected only isolated thunder, and it turns out we got a lot more than that. It was unstable over land as well. Juice in the atmosphere isn't a technical term, but pwats have been high and when combined with lapse rates sufficiently steep thunder isn't all that shocking. MKX was spot on with the isolated thunder since only a minor portion of the CWA experienced thunder. Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 28, 2011 Author Share Posted September 28, 2011 What I meant was it was relatively stable over land. I tend to look at juice in the atmosphere as the main element of instability. The storm yesterday blew up over land, so even though the lake was unstable, it was over land that it intensified. MKX expected only isolated thunder, and it turns out we got a lot more than that. They developed along a boundary that was sitting just offshore. ...and isolated t'storms is about all that occured. Link to comment Share on other sites More sharing options...
Chicago WX Posted September 28, 2011 Share Posted September 28, 2011 Strange orange-ish globe in the sky appearing from time to time. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 28, 2011 Share Posted September 28, 2011 pretty decent small cell just to the east of Glen Ellyn. Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 28, 2011 Author Share Posted September 28, 2011 pretty decent small cell just to the east of Glen Ellyn. It's running along the N/S boundary. Link to comment Share on other sites More sharing options...
Hoosier Posted September 28, 2011 Share Posted September 28, 2011 What I meant was it was relatively stable over land. I tend to look at juice in the atmosphere as the main element of instability. The storm yesterday blew up over land, so even though the lake was unstable, it was over land that it intensified. MKX expected only isolated thunder, and it turns out we got a lot more than that. It might've been stable at the surface but that doesn't always tell the whole story. Link to comment Share on other sites More sharing options...
Hoosier Posted September 28, 2011 Share Posted September 28, 2011 cool graphic...where did you find that? Link to comment Share on other sites More sharing options...
wisconsinwx Posted September 28, 2011 Share Posted September 28, 2011 Both the 12z NAM and 12z GFS indicate 850 mb winds of 60-70 knots here; even if that doesn't translate all of the way to the surface, that has to yield an occasional 50 mph gust I would think. Link to comment Share on other sites More sharing options...
Hoosier Posted September 28, 2011 Share Posted September 28, 2011 IWX did a writeup about the tornado yesterday. Interestingly it produced no lightning and tops were only 16,000 feet http://www.crh.noaa.gov/news/display_cmsstory.php?wfo=iwx&storyid=73402&source=0 Link to comment Share on other sites More sharing options...
turtlehurricane Posted September 28, 2011 Share Posted September 28, 2011 12z GFS has winds at 850 mb over MSN hitting hurricane force, gets up to 76 mph at hour 36 (Thursday evening). It's suggesting some showers will be rolling around, that's the best hope for mixing strong winds down to the sfc. It'll be interesting to watch as things evolve upstream, it'll give us an idea of how strong winds will actually be with this disturbance. Link to comment Share on other sites More sharing options...
*IndyMeso* Posted September 28, 2011 Share Posted September 28, 2011 IWX did a writeup about the tornado yesterday. Interestingly it produced no lightning and tops were only 16,000 feet http://www.crh.noaa....=73402&source=0 IWX also wrote up this Public Statement this afternoon: ...FUNNEL CLOUDS BEING REPORTED WITH A FEW SHOWERS... NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING NUMEROUS SHOWERS ACROSS PORTIONS OF NORTHERN INDIANA...FAR SOUTHERN LOWER MICHIGAN AND NORTHWESTERN OHIO. A REPORT OF A FUNNEL CLOUD WAS RECEIVED EAST OF CRUMSTOWN AROUND 135 PM EDT. THESE ARE NOT THE TYPE OF FUNNEL CLOUDS TYPICALLY ASSOCIATED WITH STRONG THUNDERSTORMS. HOWEVER...CONDITIONS ARE FAVORABLE FOR FUNNEL CLOUD FORMATION AND BRIEF BUT WEAK TORNADOES COULD OCCUR IN THE RARE CASE THAT ONE OF THESE FUNNELS REACHES THE GROUND. IF YOU OBSERVE A FUNNEL CLOUD...TAKE COVER IMMEDIATELY AND REPORT TO LAW ENFORCEMENT. FUNNEL CLOUDS...WIND GUSTS TO 30 MPH...AND BRIEF MODERATE DOWNPOURS ARE ALL POSSIBLE. Link to comment Share on other sites More sharing options...
radionicist Posted September 28, 2011 Share Posted September 28, 2011 FUNNEL CLOUDS...WIND GUSTS TO 30 MPH...AND BRIEF MODERATE DOWNPOURS ARE ALL POSSIBLE. I'm expecting a plague of locusts before this upper low finally leaves - we've had just about everything else. Link to comment Share on other sites More sharing options...
*IndyMeso* Posted September 28, 2011 Share Posted September 28, 2011 I'm expecting a plague of locusts before this upper low finally leaves - we've had just about everything else. Haha might as well. I guess we could always stick in some snow right after the plague for the snow-lovers. Link to comment Share on other sites More sharing options...
Chicago WX Posted September 28, 2011 Share Posted September 28, 2011 And this makes the 7th day in a row with rain here. Would be cool to see a cold air funnel, but we're probably a little too far south. Link to comment Share on other sites More sharing options...
Hoosier Posted September 28, 2011 Share Posted September 28, 2011 And this makes the 7th day in a row with rain here. Would be cool to see a cold air funnel, but we're probably a little too far south. I got one.....from 2003 Link to comment Share on other sites More sharing options...
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