SchaumburgStormer Posted May 18, 2017 Share Posted May 18, 2017 4 minutes ago, SchaumburgStormer said: Storm ahead of it in New Milford is rotating as well 3 minutes ago, Jim Martin said: BULLETIN - EAS ACTIVATION REQUESTED Tornado Warning National Weather Service Chicago/Romeoville Il 1004 PM CDT WED MAY 17 2017 The National Weather Service in Chicago has issued a * Tornado Warning for... Southeastern Winnebago County in north central Illinois... Southern Boone County in north central Illinois... * Until 1030 PM CDT * At 1004 PM CDT, a severe thunderstorm capable of producing a tornado was located near Cherry Valley, or near Rockford Airport, moving northeast at 55 mph. And it's warned Link to comment Share on other sites More sharing options...
homedis Posted May 18, 2017 Share Posted May 18, 2017 Decided to chase today and I was very pleasantly surprised with the storm N of Rockford. Link to comment Share on other sites More sharing options...
homedis Posted May 18, 2017 Share Posted May 18, 2017 As the storm hit... Link to comment Share on other sites More sharing options...
kevlon62 Posted May 18, 2017 Share Posted May 18, 2017 Sirens going off here in Woodstock. Tornado warning to our northwest. Vivid lightning just outside town to west illuminating quite a bit of scud. Link to comment Share on other sites More sharing options...
Jackstraw Posted May 18, 2017 Share Posted May 18, 2017 Tail end Charlie just N of Peoria is looking ominous. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted May 18, 2017 Share Posted May 18, 2017 Line headed toward Chicago could cause some damage, somewhat surprised the Tornado Watch didn't get a areal expansion into Chi Link to comment Share on other sites More sharing options...
andyhb Posted May 18, 2017 Share Posted May 18, 2017 9 minutes ago, HillsdaleMIWeather said: Line headed toward Chicago could cause some damage, somewhat surprised the Tornado Watch didn't get a areal expansion into Chi Given the veered surface flow and current storm mode, there's no real reason for a tornado watch that far east. Blue box would be much more appropriate. Link to comment Share on other sites More sharing options...
homedis Posted May 18, 2017 Share Posted May 18, 2017 Getting ready for this last squall line... T-15 minutes Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted May 18, 2017 Share Posted May 18, 2017 Gonna be real interesting to see these storms rapidly weaken after hitting Lake Michigan MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1204 AM EDT THU MAY 18 2017 LMZ844>849-868-870-872-874-876-878-180600- 1204 AM EDT THU MAY 18 2017 ...STRONG THUNDERSTORMS APPROACHING THE WATERS... THE AREAS AFFECTED INCLUDE... NEARSHORE AND OPEN WATERS FROM ST JOSEPH TO MANISTEE MI... AT 1159 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS...CAPABLE OF PRODUCING WINDS TO AROUND 50 KNOTS. THESE THUNDERSTORMS WERE LOCATED FROM NEAR SHEBOYGAN WISCONSIN TO WEST OF CHICAGO ILLINOIS...MOVING NORTHEAST AT 65 KNOTS. THESE STORMS AND THE WIND ASSOCIATED WITH THEM ARE EXPECTED TO GRADUALLY DIMINISH AS THEY APPROACH THE MICHIGAN WATERS OF LAKE MICHIGAN. THEY COULD STILL HAVE WINDS OF 30-40 KNOTS AS THEY MOVE OVER THE WATERS, AND MAY REQUIRE A SPECIAL MARINE WARNING. STRONG THUNDERSTORMS WILL BE NEAR...MANISTEE LIGHTHOUSE AROUND 1245 AM EDT. THE LITTLE SABLE POINT LIGHTHOUSE AROUND 100 AM EDT. THE GRAND HAVEN PIERHEADS AND THE MONA LAKE CHANNEL AROUND 135 AM EDT. THE MUSKEGON PIERHEADS AROUND 140 AM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... MARINERS CAN EXPECT GUSTY WINDS TO AROUND 30 KNOTS...LOCALLY HIGHER WAVES...AND LIGHTNING STRIKES. BOATERS SHOULD SEEK SAFE HARBOR IMMEDIATELY UNTIL THESE STORMS PASS. THESE STRONG THUNDERSTORMS WILL LIKELY PRODUCE WINDS TO AROUND 30 KNOTS...AND COULD POSE A SERIOUS HAZARD FOR BOATERS. A SPECIAL MARINE WARNING MAY EVENTUALLY BE REQUIRED WHEN THESE STORMS REACH THE NEARSHORE WATERS. BOATERS SHOULD CONSIDER HEADING FOR SHORE BEFORE THESE STORMS ARRIVE. Link to comment Share on other sites More sharing options...
cyclone77 Posted May 18, 2017 Share Posted May 18, 2017 Intercepted a tornado warned supercell north of Muscatine around 5pm. It looked like a classic supercell when we first met up with it, but ended up morphing into a low precipitation supercell. Dropped golf balls on Durant just to our west. Storm had decent rotation, but had a fairly high base with the high temp/dew spreads at the time. Winds were absolutely ripping out ahead of it. Southerly winds were gusting well over 40mph kicking up a ton of dust. Haven't seen that much blowing dust around here in a long time. Felt like we were chasing out in western Kansas lol. Here's a few pics. Time lapse of the approaching sup. Link to comment Share on other sites More sharing options...
Hoosier Posted May 18, 2017 Share Posted May 18, 2017 That tornado in northwest Wisconsin on Tuesday has been rated at least EF2, with a possible path length >60 miles. Link to comment Share on other sites More sharing options...
Hoosier Posted May 18, 2017 Share Posted May 18, 2017 64 mph gust at LOT Link to comment Share on other sites More sharing options...
Central Illinois Posted May 18, 2017 Share Posted May 18, 2017 Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted May 18, 2017 Share Posted May 18, 2017 New Day 1 slightly expanded the Slight Risk, the real story is down in KS and OK, hot damn. Link to comment Share on other sites More sharing options...
Hoosier Posted May 18, 2017 Share Posted May 18, 2017 Warning just to my west. Think I will stay up and wait. Link to comment Share on other sites More sharing options...
Hoosier Posted May 18, 2017 Share Posted May 18, 2017 Saw a pic from near Belvidere earlier and it looked like something was on the ground or very close. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted May 18, 2017 Share Posted May 18, 2017 Large Day 3 Marginal Link to comment Share on other sites More sharing options...
Powerball Posted May 18, 2017 Share Posted May 18, 2017 2 hours ago, HillsdaleMIWeather said: New Day 1 slightly expanded the Slight Risk, the real story is down in KS and OK, hot damn. 06z Hi-Res NAM is back to blowing up a modest line of t'storms late this afternoon. Link to comment Share on other sites More sharing options...
OceanStWx Posted May 18, 2017 Share Posted May 18, 2017 8 hours ago, cyclone77 said: Intercepted a tornado warned supercell north of Muscatine around 5pm. It looked like a classic supercell when we first met up with it, but ended up morphing into a low precipitation supercell. Dropped golf balls on Durant just to our west. Storm had decent rotation, but had a fairly high base with the high temp/dew spreads at the time. Winds were absolutely ripping out ahead of it. Southerly winds were gusting well over 40mph kicking up a ton of dust. Haven't seen that much blowing dust around here in a long time. Felt like we were chasing out in western Kansas lol. You can see in your time lapse, things were rotating just fine, just missing a little something to dig into the boundary layer and spin up low level mesos. The SPC storm reports page shows the story, cold pools dominated. We just needed a little more or deeper moisture. Link to comment Share on other sites More sharing options...
JoJo Posted May 18, 2017 Share Posted May 18, 2017 Saturday and Sunday could get interesting in Upper Ohio Valley Link to comment Share on other sites More sharing options...
Hoosier Posted May 18, 2017 Share Posted May 18, 2017 3 hours ago, OceanStWx said: You can see in your time lapse, things were rotating just fine, just missing a little something to dig into the boundary layer and spin up low level mesos. The SPC storm reports page shows the story, cold pools dominated. We just needed a little more or deeper moisture. Probably will see some red fill in, but there were a lot of wind reports. We had a decent amount of discrete/semi discrete cells, but being just a bit off on moisture seems like it precluded a bigger tornado event. Link to comment Share on other sites More sharing options...
OceanStWx Posted May 18, 2017 Share Posted May 18, 2017 4 minutes ago, Hoosier said: Probably will see some red fill in, but there were a lot of wind reports. We had a decent amount of discrete/semi discrete cells, but being just a bit off on moisture seems like it precluded a bigger tornado event. I know DVN confirmed a tornado in a TOR, but hasn't issued the LSR yet (probably awaiting the survey). Link to comment Share on other sites More sharing options...
OceanStWx Posted May 18, 2017 Share Posted May 18, 2017 Like just now, confirmed an EF1 in Hooppole, IL. Link to comment Share on other sites More sharing options...
Roger Smith Posted May 18, 2017 Share Posted May 18, 2017 Ontario and se MI, later n OH likely to see scattered severe storms and F1 tornado potential from developing Lake Huron squall line linking to developing cold front across Lake Michigan. London to Hamilton ON north to Stratford to Orangeville suggested tornado watch box (19z-22z). Link to comment Share on other sites More sharing options...
Hoosier Posted May 18, 2017 Share Posted May 18, 2017 PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 323 PM CDT THU MAY 18 2017 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1021 PM TORNADO 2 S POPLAR GROVE 42.33N 88.82W 05/17/2017 F1 BOONE IL NWS STORM SURVEY AN NWS SURVEY TEAM CONFIRMED THAT AN EF-1 TORNADO TOUCHED DOWN APPROXIMATELY TWO MILES SOUTH OF POPLAR GROVE. THE TORNADO TRAVELED APPROXIMATELY 10.3 MILES AND LIFTED THREE MILES NORTHWEST OF HARVARD. THE TORNADO WAS ON THE GROUND FOR AROUND 13 MINUTES. && $$ BMD Link to comment Share on other sites More sharing options...
cyclone77 Posted May 18, 2017 Share Posted May 18, 2017 9 hours ago, OceanStWx said: You can see in your time lapse, things were rotating just fine, just missing a little something to dig into the boundary layer and spin up low level mesos. The SPC storm reports page shows the story, cold pools dominated. We just needed a little more or deeper moisture. Yep, a little more moisture would have gone a long way to improving things. With the two new tornadoes confirmed by DVN that brings them up to 16 tornadoes for 2017 so far. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted May 18, 2017 Share Posted May 18, 2017 A few cells have popped up down in Indiana and Ohio, some 60mph wind gusts. Link to comment Share on other sites More sharing options...
OceanStWx Posted May 18, 2017 Share Posted May 18, 2017 12 minutes ago, cyclone77 said: Yep, a little more moisture would have gone a long way to improving things. With the two new tornadoes confirmed by DVN that brings them up to 16 tornadoes for 2017 so far. Sounds like they had 5 total yesterday. 16 tornadoes might be more than they had in my 2.5 years there. Link to comment Share on other sites More sharing options...
nwohweather Posted May 18, 2017 Share Posted May 18, 2017 Nice little pocket down in Paulding and Van Wert counties of shear and instability. They're on their 3rd SVR T-Storm Warning today Link to comment Share on other sites More sharing options...
nwohweather Posted May 18, 2017 Share Posted May 18, 2017 Some rotation by Van Wert Link to comment Share on other sites More sharing options...
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