michsnowfreak Posted March 24, 2013 Share Posted March 24, 2013 First Report of Heavy Snow in SW IL vis down to 0.50 Litchfield Municipal Airport 02:35 Heavy Snow Not trying to nitpick, but shouldnt that be "snow"? My rule of thumb based on DTW obs/vis is that... 0.25 mile or less: Heavy Snow (once in a while you will see "Snow" at 0.25 mile but its usually "Heavy Snow") 0.50 mile: Snow (once in a while "Light Snow") 0.75+ mile: Light Snow Link to comment Share on other sites More sharing options...
Stebo Posted March 24, 2013 Share Posted March 24, 2013 Not trying to nitpick, but shouldnt that be "snow"? My rule of thumb based on DTW obs/vis is that... 0.25 mile or less: Heavy Snow (once in a while you will see "Snow" at 0.25 mile but its usually "Heavy Snow") 0.50 mile: Snow (once in a while "Light Snow") 0.75+ mile: Light Snow Depends if the prevailing visibility is the surface or the tower visibility. It goes by the surface visibility, so lets say for example the tower vis is 1/4SM and my vis is 1/2SM the prevailing visibility is 1/4SM with my vis being in the remarks and the present weather would be SN. You are correct however that it goes 0-1/4SM is heavy snow, 1/2SM is snow and 3/4-10SM is light snow. Link to comment Share on other sites More sharing options...
beavis1729 Posted March 24, 2013 Share Posted March 24, 2013 Reports of thunder snow around STL An amazing storm unfolding there...I believe the normal high is around 60? Link to comment Share on other sites More sharing options...
B-Rent Posted March 24, 2013 Share Posted March 24, 2013 SN right now. Love a good daytime snow. Sent from my SCH-I535 using Tapatalk 2 Link to comment Share on other sites More sharing options...
Chicago WX Posted March 24, 2013 Share Posted March 24, 2013 A half inch or so here on the grass, roofs, etc. Light snow currently. Gourgeous. Link to comment Share on other sites More sharing options...
B-Rent Posted March 24, 2013 Share Posted March 24, 2013 A half inch or so here on the grass, roofs, etc. Light snow currently. Gourgeous. Accidents and slideoffs are starting to come in here at work. Link to comment Share on other sites More sharing options...
McDude Posted March 24, 2013 Share Posted March 24, 2013 06z NAM going north and looks like it looking at radar. Not to far out from a big bust in Chicago. If its going north how can it be a bust for us? Unless you don't want snow. Link to comment Share on other sites More sharing options...
Chicago WX Posted March 24, 2013 Share Posted March 24, 2013 6z RGEM bulls eyes LAF, for Indiana, or close to it. Really goes to town in St. Louis and parts of central/southern IL. Link to comment Share on other sites More sharing options...
LizardMafia Posted March 24, 2013 Share Posted March 24, 2013 Have about an inch and a half.. Roads are slushy for the most part.. Link to comment Share on other sites More sharing options...
B-Rent Posted March 24, 2013 Share Posted March 24, 2013 Have about an inch and a half.. Roads are slushy for the most part.. 69 is a mess. I haven't been able to step away from the radio to check what it looks like outside. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted March 24, 2013 Share Posted March 24, 2013 Got near an inch overnight, surprisingly dry and fluffy. We should get another surge of snow early this afternoon as the main storm passes, but I'm not sure how well it will accumulate with warmer temps and peak sun. Link to comment Share on other sites More sharing options...
Chicago WX Posted March 24, 2013 Share Posted March 24, 2013 Have about an inch and a half.. Roads are slushy for the most part.. You're going to get smoked later today/tonight. San Antonio this isn't. Link to comment Share on other sites More sharing options...
csnavywx Posted March 24, 2013 Share Posted March 24, 2013 Ripping has begun. It darkened up enough that some parking lot and street lights came back on. Link to comment Share on other sites More sharing options...
LizardMafia Posted March 24, 2013 Share Posted March 24, 2013 You're going to get smoked later today/tonight. San Antonio this isn't. Last Sunday was enjoying the mid 80s, this Sunday 30 and snow.. Your going to do pretty well also! Link to comment Share on other sites More sharing options...
A-L-E-K Posted March 24, 2013 Share Posted March 24, 2013 Good luck to those in play for double digits Link to comment Share on other sites More sharing options...
dmc76 Posted March 24, 2013 Share Posted March 24, 2013 http://www.earthcam.com/usa/missouri/stlouis/ Link to comment Share on other sites More sharing options...
Chicago WX Posted March 24, 2013 Share Posted March 24, 2013 Last Sunday was enjoying the mid 80s, this Sunday 30 and snow.. Your going to do pretty well also! Yeah, we'll probably make out ok...but just south of here looks to be the sweet spot. Spitting snow here now as we enter the lull. All eyes turn to the southwest. Link to comment Share on other sites More sharing options...
B-Rent Posted March 24, 2013 Share Posted March 24, 2013 Fluffy inch and a quarter. Sent from my SCH-I535 using Tapatalk 2 Link to comment Share on other sites More sharing options...
LizardMafia Posted March 24, 2013 Share Posted March 24, 2013 Yeah, we'll probably make out ok...but just south of here looks to be the sweet spot. Spitting snow here now as we enter the lull. All eyes turn to the southwest. Should be an exciting afternoon and evening to say the least! Link to comment Share on other sites More sharing options...
Chicago WX Posted March 24, 2013 Share Posted March 24, 2013 12z NAM has CMI, LAF, MIE, OKK, etc in the heart of the trowal tonight. Link to comment Share on other sites More sharing options...
ILSNOW Posted March 24, 2013 Share Posted March 24, 2013 Nice out of St louis AVIATION...(FOR THE 12Z TAFS THROUGH 12Z MONDAY MORNING)ISSUED AT 834 AM CDT SUN MAR 24 2013SNOW...HEAVY AT TIMES...WILL CONTINUE AS THE DEFORMATION ZONEPIVOTS OVER THE REGION TODAY AND TONIGHT. IFR CONDITIONS EXPECTEDTHROUGH THE PERIOD.UPDATE...SEVERAL LIGHTNING STRIKES NOTED IN THE INITIAL BAND HASRESULTED IN REPORTS OF THUNDERSNOW AND SNOWFALL RATES APPROACHING3 INCHES PER HOUR. HAVE UPDATED TAFS TO INCLUDE THESE CONDITIONSAT KCOU...AND METRO STL TERMINALS Link to comment Share on other sites More sharing options...
Fickle Heights Posted March 24, 2013 Share Posted March 24, 2013 It begins: I-65 just south of Lafayette is closed by the jackknifed semi. Link to comment Share on other sites More sharing options...
afterimage Posted March 24, 2013 Share Posted March 24, 2013 12z NAM has CMI, LAF, MIE, OKK, etc in the heart of the trowal tonight. Outstanding.....hoping form some pix from friends around MIE since I am in SC Link to comment Share on other sites More sharing options...
Chicago WX Posted March 24, 2013 Share Posted March 24, 2013 It begins: I-65 just south of Lafayette is closed by the jackknifed semi. As usual. Outstanding.....hoping form some pix from friends around MIE since I am in SC Never thought you'd miss a snowstorm in late March while on vacation, huh? Link to comment Share on other sites More sharing options...
Stebo Posted March 24, 2013 Share Posted March 24, 2013 It begins: I-65 just south of Lafayette is closed by the jackknifed semi. What a horrible freeway, every time I have been on it there has been some sort of accident. They need to widen it to 6 lanes instead of 4, especially considering it is the main route from Chicago to Indy. Link to comment Share on other sites More sharing options...
csnavywx Posted March 24, 2013 Share Posted March 24, 2013 Just heard a loud rumble of thunder. Ripping +SN outside. Widespread reports of graupel and small hail showing up. Link to comment Share on other sites More sharing options...
Chicago WX Posted March 24, 2013 Share Posted March 24, 2013 What a horrible freeway, every time I have been on it there has been some sort of accident. They need to widen it to 6 lanes instead of 4, especially considering it is the main route from Chicago to Indy. I-65 is awful. But people also need to stop driving like jackasses during inclement weather, let alone dry sunny days. Link to comment Share on other sites More sharing options...
Stebo Posted March 24, 2013 Share Posted March 24, 2013 I-65 is awful. But people also need to stop driving like jackasses during inclement weather, let alone dry sunny days. True, though 6 lanes would give them more space to be jackasses Link to comment Share on other sites More sharing options...
Fickle Heights Posted March 24, 2013 Share Posted March 24, 2013 I-65 is awful. But people also need to stop driving like jackasses during inclement weather, let alone dry sunny days. Agreed. I've seen so many crazy things, especially people tempting fate trying to outmaneuver trucks. I won't be surprised if it's close more often than open during the next 24 hours. Link to comment Share on other sites More sharing options...
LizardMafia Posted March 24, 2013 Share Posted March 24, 2013 I-65 is awful. But people also need to stop driving like jackasses during inclement weather, let alone dry sunny days. No doubt about that.. But people will never learn! Link to comment Share on other sites More sharing options...
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