HillsdaleMIWeather Posted August 27, 2016 Share Posted August 27, 2016 IWX regarding today sct convection will initiate this aftn and spread east into more unstable airmass. Given 00z models indications of deep layer shear around 30kts overspreading the area today, combined with moderate instability developing, mainly across e-se portion of the cwa, a few supercells seem psbl this aftn, and with moist airmass/low lcls likely, a tornado not out of the question. Warm airmass over the area should be counteracted somewhat by cloud cover/showers but temps still expected to be a bit above normal with highs generally in the m80s. Link to comment Share on other sites More sharing options...
IWXwx Posted August 27, 2016 Share Posted August 27, 2016 8 hours ago, Indystorm said: Just got back from having dinner with a friend in Speedway. Had to take numerous detours because of flooded roads from a storm this evening. From 6-7:10 p.m. Indianapolis airport picked up just under 2 inches of rain. The Broad Ripple area was hit by strong straight line winds with numerous trees and branches down from this morning's storm with 20,000 customers out of power for a time. Castleton Mall last evening (Northeast side of Indy): Link to comment Share on other sites More sharing options...
Tim from Springfield (IL) Posted August 28, 2016 Author Share Posted August 28, 2016 Ever since about 3:30 this morning we've had non-stop thunder and lightning in the distance here in Springfield, but only a few drops of rain at my apartment near downtown and the Capitol complex. Go about 3 miles N/NW and it's been another story--another round of flash flooding early this morning on the far northwest parts of the city. I'll be seeing the closest extent of the heavy rain to my apartment shortly as I'm getting ready to head to church (on the W/NW end of Springfield). Meanwhile, ILX hoisted a Flash Flood Warning for NW Sangamon County this morning, including the airport. Looks like the 1981 August rainfall record is history for SPI. BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LINCOLN IL 530 AM CDT SUN AUG 28 2016 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHWESTERN SANGAMON COUNTY IN CENTRAL ILLINOIS... * UNTIL 1030 AM CDT * AT 529 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... SPRINGFIELD...SHERMAN...SPAULDING...CANTRALL...CAPITAL AIRPORT... FARMINGDALE AND SALISBURY. THIS INCLUDES INTERSTATE 55 BETWEEN MILE MARKERS 101 AND 104. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON`T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU CAN DO SO SAFELY. Link to comment Share on other sites More sharing options...
CP_WinterStorm Posted August 28, 2016 Share Posted August 28, 2016 On 8/27/2016 at 4:58 AM, IWXwx said: Castleton Mall last evening (Northeast side of Indy): Dang! Seems Indy can't catch a break lately! Link to comment Share on other sites More sharing options...
OHweather Posted August 28, 2016 Share Posted August 28, 2016 That's interesting BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 112 PM EDT SUN AUG 28 2016 THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN MONROE COUNTY IN SOUTHEASTERN MICHIGAN... SOUTHERN LENAWEE COUNTY IN SOUTHEASTERN MICHIGAN... * UNTIL 200 PM EDT * AT 111 PM EDT...A LINE OF THUNDERSTORMS PRODUCING BRIEF WEAK TORNADOES IS EXTENDING FROM NEAR MAYBEE TO NEAR FAYETTE...MOVING EAST AT 15 MPH. HAZARD...DAMAGING TORNADO. SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO. IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR. TREE DAMAGE IS LIKELY. * THESE TORNADIC STORMS WILL BE NEAR... IDA AROUND 115 PM EDT. MONROE AROUND 135 PM EDT. OTHER LOCATIONS IMPACTED BY THESE TORNADIC STORMS INCLUDE BLISSFIELD... MORENCI...MONROE...DUNDEE...TEMPERANCE...IDA...PETERSBURG...LUNA PIER... OTTAWA LAKE AND DEERFIELD. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4181 8436 4197 8362 4199 8316 4190 8326 4189 8331 4184 8335 4172 8341 4173 8347 4171 8436 TIME...MOT...LOC 1711Z 262DEG 13KT 4197 8355 4174 8431 TORNADO...OBSERVED HAIL...<.75IN Link to comment Share on other sites More sharing options...
Hoosier Posted August 28, 2016 Share Posted August 28, 2016 Certainly not seeing a whole lot on velocity. Link to comment Share on other sites More sharing options...
OHweather Posted August 28, 2016 Share Posted August 28, 2016 2 minutes ago, Hoosier said: Certainly not seeing a whole lot on velocity. Yeah, this sounds like a landspout event. Apparently law enforement in Monroe County has reported numerous funnel clouds and possibly multiple brief touchdowns. There aren't signs of a ton of vorticity along the boundary on obs or mesoanalysis, but there's a lot of 0-3km CAPE so if vorticity is being locally enhanced there's enough stretching capability for brief landspouts. Link to comment Share on other sites More sharing options...
stormtrackertf Posted August 28, 2016 Share Posted August 28, 2016 Yeah, this is truly one of those "Um, what?" events. It'll be interesting to see if there was enough to do any kind of damage. Link to comment Share on other sites More sharing options...
Stebo Posted August 28, 2016 Share Posted August 28, 2016 7 minutes ago, Hoosier said: Certainly not seeing a whole lot on velocity. Same but it could be landspouts like OHWEATHER mentioned. They have had confirmed reports in the warning. Like you said recently everything is spinning these days, might be an interesting fall if that is the case. Link to comment Share on other sites More sharing options...
Powerball Posted August 28, 2016 Share Posted August 28, 2016 1 minute ago, OHweather said: Yeah, this sounds like a landspout event. Apparently law enforement in Monroe County has reported numerous funnel clouds and possibly multiple brief touchdowns. There aren't signs of a ton of vorticity along the boundary on obs or mesoanalysis, but there's a lot of 0-3km CAPE so if vorticity is being locally enhanced there's enough stretching capability for brief landspouts. There's also the low LCLs and strong surface covergence. When you have those items combined, it doesn't take much to get rotating storms / weak funnels. Link to comment Share on other sites More sharing options...
OHweather Posted August 28, 2016 Share Posted August 28, 2016 2 minutes ago, Powerball said: There's also the low LCLs and strong surface covergence. When you have those items combined, it doesn't take much to get rotating storms / weak funnels. That's a gradual wind shift with the front, so convergence isn't great with the front itself. My guess is the storms may be locally enhancing the convergence/surface vorticity. I think what's noteworthy is an NWS office warning for landspouts in the Great Lakes...I've seen it happen in eastern CO a number of times, but normally offices around here seem to just issue special statements for the funnel clouds or brief/weak touchdowns. DTX has updated the warning and still has observed wording in there, so perhaps these storms are still producing the funnels/landspouts. Link to comment Share on other sites More sharing options...
Hoosier Posted August 28, 2016 Share Posted August 28, 2016 8 minutes ago, Stebo said: Same but it could be landspouts like OHWEATHER mentioned. They have had confirmed reports in the warning. Like you said recently everything is spinning these days, might be an interesting fall if that is the case. Been an interesting few weeks. Not to get too off track but I don't really see an abnormally quick stepdown to winter and the warmer than average pattern seems likely to continue in the means for a while. Of course you don't necessarily need that for a big outbreak as 11/17/2013 was sandwiched in between some decent cold shots for that time of year. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted August 28, 2016 Share Posted August 28, 2016 Probable location of the landspouts Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted August 28, 2016 Share Posted August 28, 2016 New update, still on the ground in Monroe County MI. Link to comment Share on other sites More sharing options...
Hoosier Posted August 28, 2016 Share Posted August 28, 2016 Storms just south of me are moving very slooowly. Link to comment Share on other sites More sharing options...
Stebo Posted August 28, 2016 Share Posted August 28, 2016 10 minutes ago, Hoosier said: Been an interesting few weeks. Not to get too off track but I don't really see an abnormally quick stepdown to winter and the warmer than average pattern seems likely to continue in the means for a while. Of course you don't necessarily need that for a big outbreak as 11/17/2013 was sandwiched in between some decent cold shots for that time of year. Yeah it looks to remain warm right into September, the key would be if we see a seasonally strong trough eject into this abnormally warm air mass. Link to comment Share on other sites More sharing options...
Powerball Posted August 28, 2016 Share Posted August 28, 2016 8 minutes ago, Stebo said: Yeah it looks to remain warm right into September, the key would be if we see a seasonally strong trough eject into this abnormally warm air mass. 12z GFS is a virtual torch. Several days of consecutive 90*F+ highs if it's right. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted August 28, 2016 Share Posted August 28, 2016 5 minutes ago, Powerball said: 12z GFS is a virtual torch. Several days of consecutive 90*F+ highs if it's right. Yeah, the 12Z GFS doesn't look seasonal until the very end of the run. Link to comment Share on other sites More sharing options...
Hoosier Posted August 28, 2016 Share Posted August 28, 2016 Flash flood warnings now to my south. That area has had 6-10" of rain this month prior to today, so they don't really need anymore. Link to comment Share on other sites More sharing options...
Indystorm Posted August 28, 2016 Share Posted August 28, 2016 9 minutes ago, Hoosier said: Flash flood warnings now to my south. That area has had 6-10" of rain this month prior to today, so they don't really need anymore. Enjoy your torrential rain if it makes it up into the Calumet like we had Friday evening in Indpls. Has certainly been an interesting August. Link to comment Share on other sites More sharing options...
Tim from Springfield (IL) Posted August 28, 2016 Author Share Posted August 28, 2016 And a thunderstorm warning west of Kankakee too: SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 202 PM CDT SUN AUG 28 2016 ILC063-091-105-197-281930- /O.CON.KLOT.SV.W.0095.000000T0000Z-160828T1930Z/ LIVINGSTON IL-GRUNDY IL-WILL IL-KANKAKEE IL- 202 PM CDT SUN AUG 28 2016 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR NORTHEASTERN LIVINGSTON...SOUTHEASTERN GRUNDY...SOUTHWESTERN WILL AND SOUTHWESTERN KANKAKEE COUNTIES... AT 201 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR BRACEVILLE TO 7 MILES SOUTHEAST OF DWIGHT TO NEAR ODELL...MOVING EAST AT 20 MPH. HAZARD...60 MPH WIND GUSTS. SOURCE...RADAR INDICATED. IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. LOCATIONS IMPACTED INCLUDE... DWIGHT...BRAIDWOOD...COAL CITY...DIAMOND...GARDNER...ODELL...MAZON... BRACEVILLE...LAKEWOOD SHORES...ESSEX...SOUTH WILMINGTON...GODLEY... BUCKINGHAM...CABERY...CAMPUS...REDDICK...EMINGTON...EAST BROOKLYN AND UNION HILL. INCLUDING THE FOLLOWING INTERSTATE... I-55 BETWEEN MILE MARKERS 203 AND 234. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4094 8867 4128 8840 4127 8802 4109 8811 4099 8821 4099 8825 4095 8825 4090 8830 TIME...MOT...LOC 1901Z 268DEG 16KT 4120 8821 4104 8829 4096 8846 Link to comment Share on other sites More sharing options...
Tim from Springfield (IL) Posted August 28, 2016 Author Share Posted August 28, 2016 5.05 inches of rain in the 24 hours ending at 8AM this morning about 6 miles northeast of New Berlin, IL (or about 8-10 miles west of downtown Springfield). Most likely all of it just since 3AM this morning. PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE LINCOLN IL 241 PM CDT SUN AUG 28 2016 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0800 AM HEAVY RAIN 6 NE NEW BERLIN 39.79N 89.83W 08/28/2016 M5.05 INCH SANGAMON IL TRAINED SPOTTER 24 HOUR RAINFALL TOTAL...DELAYED REPORT. Link to comment Share on other sites More sharing options...
Indystorm Posted August 28, 2016 Share Posted August 28, 2016 2 to 4 inch rain rates PER HOUR expected in the warning for Livingston county. Sheesh! Link to comment Share on other sites More sharing options...
CoalCityWxMan Posted August 28, 2016 Share Posted August 28, 2016 Crazy rain just 3 miles away from me in Braceville, while I've only had 0.10" at my house lol. Parts of Braceville have seen 3-5", and its flooded pretty extensively. Drove through there and it's a big mess. Lots of roads closed Link to comment Share on other sites More sharing options...
snowlover2 Posted August 29, 2016 Share Posted August 29, 2016 Been getting one of the best lightning shows I've seen in a long time. 2 storms collided pretty much right over me and been non stop for the last 90 minutes. Got a t-storm warning, FF warning and flood advisory. Just missing a tornado warning for the cycle. Link to comment Share on other sites More sharing options...
NinjaWarrior2 Posted August 29, 2016 Share Posted August 29, 2016 Major Flood event unfolding near Cincinnati right now. Link to comment Share on other sites More sharing options...
CP_WinterStorm Posted August 29, 2016 Share Posted August 29, 2016 20 hours ago, Hoosier said: Flash flood warnings now to my south. That area has had 6-10" of rain this month prior to today, so they don't really need anymore. It was extremely isolated as well. Was at the grocery store on the north side of Crown Point and did not have even a drop of rain, but at my house on the southeast side not 4-5 miles away, the streets had turned into rivers by the time I returned home. Looks like a similar setup today, hopefully storms don't fire over the same areas as yesterday. Link to comment Share on other sites More sharing options...
osubrett2 Posted August 29, 2016 Share Posted August 29, 2016 http://nbc4i.com/2016/08/28/power-out-around-central-ohio-after-popup-storms/ Cool timelapse footage from the NBC4 tower cam here Columbus that caught a storm sitting over downtown for close to an hour yesterday. It's cool to see the downdrafts accelerate and hit the ground about halfway through. Picked up about 1.5" IMBY just south of downtown, some neighborhoods to the east and in Bexley picked up over 2.0" in that hour. Link to comment Share on other sites More sharing options...
CoalCityWxMan Posted August 29, 2016 Share Posted August 29, 2016 If these storms develop in the same areas that got pounded yesterday...yikes. I know some roads are still closed in Braceville Link to comment Share on other sites More sharing options...
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