janetjanet998 Posted May 17, 2017 Share Posted May 17, 2017 BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA/IL 632 PM CDT WED MAY 17 2017 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN DUBUQUE COUNTY IN NORTHEASTERN IOWA... NORTHWESTERN JONES COUNTY IN EAST CENTRAL IOWA... EASTERN DELAWARE COUNTY IN NORTHEASTERN IOWA... NORTHEASTERN LINN COUNTY IN EAST CENTRAL IOWA... * UNTIL 715 PM CDT * AT 632 PM CDT, A CONFIRMED TORNADO WAS LOCATED OVER WAUBEEK, OR 9 MILES WEST OF ANAMOSA, MOVING NORTHEAST AT 60 MPH. HAZARD...DAMAGING TORNADO. SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. Link to comment Share on other sites More sharing options...
homedis Posted May 17, 2017 Share Posted May 17, 2017 That was INSANE. At least 70mph winds I hit the tail of it. No tornado from what I could see. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted May 17, 2017 Share Posted May 17, 2017 Had a couple 50+ mph gusts here as the line moved in... nothing severe. There have been a few 70 mph reports nearby, but I didn't see that. Link to comment Share on other sites More sharing options...
kevlon62 Posted May 18, 2017 Share Posted May 18, 2017 That was INSANE. At least 70mph winds I hit the tail of it. No tornado from what I could see.She was quite the beast. These from between Darien and Janesville on Rt. 14. Link to comment Share on other sites More sharing options...
Stebo Posted May 18, 2017 Share Posted May 18, 2017 That first image's damage looks stronger than 70mph there. Link to comment Share on other sites More sharing options...
kevlon62 Posted May 18, 2017 Share Posted May 18, 2017 That first image's damage looks stronger than 70mph there.Right. A couple of timbers were all the way onto the road. Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 18, 2017 Share Posted May 18, 2017 AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE, IL 741 PM CDT WED MAY 17 2017 MESOSCALE DISCUSSION 741 PM CDT ARC OF STORMS NEAR THE MISSISSIPPI RIVER AS OF 730 PM IS JUST AHEAD OF THE SURFACE FRONT OR IMMEDIATE PRE-FRONTAL TROUGH, AS WELL AS ON LEADING EDGE OF MID-LEVEL FORCING PER GOES-16 WATER VAPOR IMAGERY. THE 00Z DVN AND ILX SOUNDINGS CAPTURED THE WARM SECTOR WELL, SHOWING STRONG SPEED SHEAR AS WELL AS MODEST/STRONG DIRECTIONAL SHEAR, SUPPORTIVE OF CONTINUE SUPERCELLS OR EMBEDDED SUPERCELLS WITH THIS LINE OF STORMS. GIVEN THE WARM SECTOR SHOULD STAY WELL-MIXED THROUGH THE MID-EVENING HOURS DUE TO STRONG NEAR- SURFACE WARM ADVECTION, WOULD EXPECT SCATTERED DAMAGING WIND AND AN ISOLATED TORNADO THREAT TO CONTINUE FOR AT LEAST A FEW HOURS INTO NORTH CENTRAL ILLINOIS. LCLS/LFCS HAVE BEEN FAIRLY HIGH FOR TORNADO POTENTIAL IN NORTH CENTRAL ILLINOIS THUS FAR, AND WERE STILL HIGH ON THE 00Z DVN AND ILX SOUNDINGS. THAT SAID, THE KINEMATICS CAN OVERCOME FOR THAT, AND IF ANYTHING MAY INCREASE THE DAMAGING WIND POTENTIAL WITH STRONG, THERMALLY-ASSISTED DOWNDRAFTS WITHIN AN ALREADY POTENT WIND FIELD. THE FIRST STORM CLUSTER/SUPERCELL PRODUCED BOTH SIGNIFICANT HAIL AND WIDESPREAD WIND DAMAGE INDICATIVE OF SIGNIFICANT WIND SPEEDS, AND GIVES AN INDICATION OF WHAT THE CURRENT ATMOSPHERE IS CAPABLE OF. AHEAD OF THIS ARC, ISOLATED STORM DEVELOPMENT IS PROBABLE, AND ANY OF THOSE RIGHT AHEAD OF THE LINE MAY BE MOST CONCERNING GIVEN CURRENT RADAR TRENDS ON DVN. OTHERWISE, ISOLATED STORMS COULD ALSO BE SEEN A WAYS OUT AHEAD OF THE PRIMARY LINE. WHILE THESE TOO COULD POSE SEVERE POTENTIAL, POSSIBLY EAST OF THE CURRENT WATCH AREA IF SOME WERE TO POP UP, THE MAIN SEVERE WEATHER THREAT RIGHT NOW STILL LOOKS TO REMAIN IN NORTH CENTRAL ILLINOIS. EXPECTING THE NORTHEAST TRAJECTORY OF THE STORMS TO TAKE THE MOST POTENT STORMS MAINLY NORTH OF THE REMAINDER OF THE CWA, WITH THE NORTHWEST AND NORTHERN CHICAGO METRO POSSIBLY GETTING CLIPPED. MTF Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 18, 2017 Share Posted May 18, 2017 lots of widespread wind damage out of IA and WI Link to comment Share on other sites More sharing options...
Roger Smith Posted May 18, 2017 Share Posted May 18, 2017 Mesoscale complex seems likely across n IL, se WI, nw IN and sw MI tonight. Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 18, 2017 Share Posted May 18, 2017 waiting to see if this is a typo... PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 758 PM CDT WED MAY 17 2017 .TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON .DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE. ..REMARKS.. 0628 PM TSTM WND GST 1 W RYAN 42.35N 91.50W 05/17/2017 M89 MPH DELAWARE IA FIRE DEPT/RESCUE Link to comment Share on other sites More sharing options...
Indystorm Posted May 18, 2017 Share Posted May 18, 2017 400 3k helicity and 350 1k helicity out in front of that tor warned cell aiming for Clinton IA on ne with 64 dews out ahead of it. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted May 18, 2017 Share Posted May 18, 2017 1 minute ago, Roger Smith said: Mesoscale complex seems likely across n IL, se WI, nw IN and sw MI tonight. Should die out while crossing the lake and entering much more stable air however Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 18, 2017 Share Posted May 18, 2017 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0757 PM CDT WED MAY 17 2017 VALID 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF WISCONSIN...NORTHWEST ILLINOIS AND FAR EASTERN IOWA... ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY IN THE WESTERN GREAT LAKES... ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OUTSIDE OF THE SLIGHT RISK AREA ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY...WESTERN GREAT LAKES AND OZARKS... ..SUMMARY SEVERE STORMS WILL CONTINUE TO IMPACT PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY THIS EVENING INTO TONIGHT. THE THREAT FOR DAMAGING WIND GUSTS WILL BE GREATEST ACROSS EASTERN IOWA, NORTHWEST ILLINOIS AND SOUTHWEST WISCONSIN. LARGE HAIL AND A COUPLE BRIEF TORNADOES WILL ALSO BE POSSIBLE ACROSS THE MID TO UPPER MISSISSIPPI THIS EVENING. ..MID TO UPPER MISSISSIPPI VALLEY WATER VAPOR IMAGERY SHOWS A NEGATIVELY TILTED UPPER-LEVEL TROUGH OVER THE MID MISSOURI VALLEY WITH A BAND OF LARGE-SCALE ASCENT MOVING NORTHEASTWARD ACROSS THE UPPER MISSISSIPPI VALLEY. AT THE SURFACE, A 993 MB LOW IS MOVING NORTHEASTWARD ACROSS NORTHWEST IOWA WITH A CORRIDOR OF LOW-LEVEL MOISTURE AHEAD OF THE LOW EXTENDING NORTHWARD FROM ILLINOIS INTO WISCONSIN AND SOUTHEASTERN MINNESOTA. SEVERAL LINE SEGMENTS ARE ONGOING ALONG THIS CORRIDOR WITH ONE LINE IN NORTH-CENTRAL WISCONSIN AND ANOTHER NEAR THE MISSISSIPPI RIVER IN FAR EASTERN IOWA. THE LATEST RAP SHOWS MODERATE INSTABILITY AHEAD OF THIS ACTIVITY WITH MLCAPE VALUES ACROSS MUCH OF IOWA AND NORTHERN ILLINOIS ESTIMATED IN THE 1200 TO 1800 J/KG RANGE. IN ADDITION, THE RAP SHOWS A 65 TO 80 KT MID-LEVEL JET OVER THE MID MISSISSIPPI VALLEY WITH THE LEFT EXIT REGION OF THIS FEATURE LOCATED ACROSS EASTERN PARTS OF THE UPPER MISSISSIPPI VALLEY. THE EXIT REGION OF THE JET IS ENHANCING LIFT AND DEEP-LAYER SHEAR ACROSS THE UPPER MISSISSIPPI VALLEY WHERE 0-6 KM SHEAR VALUES ARE ESTIMATED IN THE 45 TO 55 KT RANGE. THIS WILL BE ENOUGH TO MAINTAIN A WIND DAMAGE THREAT WITH LINE SEGMENTS THAT CAN PERSIST THIS EVENING AND INTO THE EARLY OVERNIGHT PERIOD. LARGE HAIL WILL ALSO BE POSSIBLE WITH THE STRONGER EMBEDDED CELLS. A COUPLE BRIEF QLCS TYPE TORNADOES WILL ALSO BE POSSIBLE. ..ARKANSAS/MISSOURI AND CENTRAL ILLINOIS SOUTHWEST FLOW WILL REMAIN IN PLACE ACROSS THE OZARKS AND MID MISSISSIPPI VALLEY THIS EVENING INTO TONIGHT. AN AXIS OF MODERATE INSTABILITY IS CURRENTLY ANALYZED BY THE RAP FROM THE ARKLATEX NORTHEASTWARD INTO EASTERN MISSOURI WHERE MLCAPE VALUES ARE ESTIMATED IN THE 1500 TO 2000 J/KG RANGE. MODERATE INSTABILITY SHOULD REMAIN IN PLACE ACROSS THE REGION AS WARM ADVECTION IS MAINTAINED DUE TO VEERING WINDS IN THE LOW-LEVELS. THIS MAY ALLOW FOR ISOLATED CONVECTIVE INITIATION ALONG THE INSTABILITY AXIS DURING THE LATE EVENING OR IN THE EARLY OVERNIGHT PERIOD. NAM FORECAST SOUNDINGS IN THE OZARKS AROUND MIDNIGHT SHOW 0-6 KM SHEAR IN THE 50 TO 60 KT RANGE AND SHOW POTENTIAL FOR SURFACE-BASED CONVECTION. THIS COULD BE ENOUGH FOR A MARGINAL WIND DAMAGE OR HAIL THREAT. Link to comment Share on other sites More sharing options...
andyhb Posted May 18, 2017 Share Posted May 18, 2017 TDS S of Sherrard, IL. Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 18, 2017 Share Posted May 18, 2017 ULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA/IL 805 PM CDT WED MAY 17 2017 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN ROCK ISLAND COUNTY IN NORTHWESTERN ILLINOIS... NORTHEASTERN MERCER COUNTY IN NORTHWESTERN ILLINOIS... NORTHWESTERN HENRY COUNTY IN NORTHWESTERN ILLINOIS... * UNTIL 845 PM CDT * AT 805 PM CDT, A TORNADO PRODUCING STORM WAS LOCATED OVER CABLE, OR 13 MILES WEST OF CAMBRIDGE, MOVING NORTHEAST AT 40 MPH. HAZARD...DAMAGING TORNADO AND PING PONG BALL SIZE HAIL. SOURCE...RADAR CONFIRMED TORNADO. Link to comment Share on other sites More sharing options...
Buckeye05 Posted May 18, 2017 Share Posted May 18, 2017 3 minutes ago, andyhb said: TDS S of Sherrard, IL. Heading towards the town of Orion. Link to comment Share on other sites More sharing options...
Natester Posted May 18, 2017 Share Posted May 18, 2017 1 hour ago, hawkeye_wx said: Had a couple 50+ mph gusts here as the line moved in... nothing severe. There have been a few 70 mph reports nearby, but I didn't see that. I recorded video of it via my tablet (just like I did on March 6) and looking at the footage, the winds weren't too bad. Can't say the same for SE Cedar Rapids, though. Waterloo/Cedar Falls/Des Moines got clobbered by this line. Link to comment Share on other sites More sharing options...
Jim Marusak Posted May 18, 2017 Share Posted May 18, 2017 btw, back up here in the twin cities, where the overall severe threat has been limited today, we have had at least a few reports of flash flooding. One of which was momentary flooding of the MoA stop of the Metro Transit Blue Line. it only lasted ~ 20 mins, but they did have to not run trains south of the MoA for that time due to the momentary high waters. Others include somewhere between Blaine and Andover in Anoka County and near Hennepin and 10th in Downtown Minny. Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 18, 2017 Share Posted May 18, 2017 0553 PM TSTM WND DMG PARKERSBURG 42.58N 92.78W 05/17/2017 BUTLER IA CO-OP OBSERVER VERY HIGH WINDS ESTIMATED AT OVER 70 MPH. POWER OUT IN PARKERSBURG. SEMI OVERTURNED ON HIGHWAY 57 RESULTING IN ONE FATALITY. NUMEROUS TREE LIMBS DOWN ON ROADS. 3 FOOT DIAMETER TREE DOWN IN PARKERSBURG. Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 18, 2017 Share Posted May 18, 2017 SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA/IL 812 PM CDT WED MAY 17 2017 ILC073-131-161-180145- /O.CON.KDVN.TO.W.0037.000000T0000Z-170518T0145Z/ ROCK ISLAND IL-MERCER IL-HENRY IL- 812 PM CDT WED MAY 17 2017 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR SOUTHEASTERN ROCK ISLAND...NORTHEASTERN MERCER AND NORTHWESTERN HENRY COUNTIES... AT 812 PM CDT, A CONFIRMED TORNADO WAS LOCATED OVER ORION, OR 10 MILES WEST OF CAMBRIDGE, MOVING NORTHEAST AT 40 MPH. HAZARD...DAMAGING TORNADO AND PING PONG BALL SIZE HAIL. SOURCE...RADAR CONFIRMED TORNADO. Link to comment Share on other sites More sharing options...
Buckeye05 Posted May 18, 2017 Share Posted May 18, 2017 Looks to have occluded just before it reached Orion. Link to comment Share on other sites More sharing options...
Indystorm Posted May 18, 2017 Share Posted May 18, 2017 The line of storms has seemed to break up into somewhat more discrete cells as it approaches the Mississippi River into IL. And watch that southern flank from Galesburg to Macomb. Link to comment Share on other sites More sharing options...
Chicago Storm Posted May 18, 2017 Author Share Posted May 18, 2017 Fairly sig damage from Ogle-Winnebago-Rock counties from that earlier severe storm in the RFD area. Sounds like a potential tornado north of RFD in that swath. Link to comment Share on other sites More sharing options...
Chicago Storm Posted May 18, 2017 Author Share Posted May 18, 2017 Went back and forth on whether or not to chase today, and decided not to...Good decision overall. Sitting in DKB now, watching to see what the incoming activity does. Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted May 18, 2017 Share Posted May 18, 2017 Rotation right over Dixon. Probably needs a warning Link to comment Share on other sites More sharing options...
andyhb Posted May 18, 2017 Share Posted May 18, 2017 Well that's some familiar turf... Link to comment Share on other sites More sharing options...
SmokeEater Posted May 18, 2017 Share Posted May 18, 2017 Was just saying that...Sent from my SM-G950U using Tapatalk Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted May 18, 2017 Share Posted May 18, 2017 3 minutes ago, andyhb said: Well that's some familiar turf... Yep. The old "stop me if you've seen this exact warning box before" Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted May 18, 2017 Share Posted May 18, 2017 Storm ahead of it in New Milford is rotating as well Link to comment Share on other sites More sharing options...
Jim Martin Posted May 18, 2017 Share Posted May 18, 2017 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. Link to comment Share on other sites More sharing options...
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