MD 1026 CONCERNING TORNADO WATCH 286…287… FOR NORTHEAST AND EAST-CENTRAL IL…NORTHERN/CENTRAL AND EASTERN INDIANA…WESTERN AND CENTRAL OH…AND NORTHEAST KY
MESOSCALE DISCUSSION 1026
NWS STORM PREDICTION CENTER NORMAN OK
1151 PM CDT WED JUN 22 2016
AREAS AFFECTED...NORTHEAST AND EAST-CENTRAL IL...NORTHERN/CENTRAL
AND EASTERN INDIANA...WESTERN AND CENTRAL OH...AND NORTHEAST KY
CONCERNING...TORNADO WATCH 286...287...
VALID 230451Z - 230615Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 286...287...CONTINUES.
SUMMARY...A TORNADO THREAT CONTINUES ACROSS THE REMAINDER OF THE
VALID PORTION OF WW 286 IN NORTHEAST TO EAST-CENTRAL IL /SOUTH OF
CHICAGO/ AND ACROSS WW 287. IN ADDITION...A DRAMATIC INCREASE IN
FORWARD SPEED /50-55 KT TO THE EAST-SOUTHEAST/ OF A BOWING STRUCTURE
IN NORTHWEST INDIANA /WHITE...NORTHERN TIPPECANOE AND WESTERN
CARROLL COUNTIES AS OF 0415Z/ WILL RESULT IN AN INCREASED
SEVERE/DAMAGING WIND THREAT /GUSTS TO 70 KT/ ACROSS WW 287. BY
06Z...THESE DAMAGING WINDS ARE EXPECTED TO REACH THE AREA FROM
INDIANAPOLIS TO MUNCIE INDIANA...AND THEN INTO SOUTHWEST OH /FROM
BUTLER COUNTY TO AROUND DAYTON BETWEEN 07-08Z. DAMAGING WINDS WILL
ALSO BE POSSIBLE ACROSS PARTS OF NORTHERN INDIANA INTO NORTHWEST TO
CENTRAL OH.
DISCUSSION...THE BOWING STORM STRUCTURE IN NORTHWEST INDIANA WAS
MOVING TO THE EAST-SOUTHEAST AT 50-55 KT. WSR-88D CHICAGO RADAR
INDICATED AN INTENSE AND DEEP REAR-INFLOW JET WITH THIS BOW /WITH
SPEEDS OF 80-100 KT FROM THE LOWEST GATE TO 25 KFT AGL/. AROUND
0428Z...A MEASURED WIND GUST OF 87 MPH WAS OBSERVED 5 SE LAFAYETTE
INDIANA WITH THIS BOW STRUCTURE. EXPANSIVE CLOUD-TOP COOLING
CONTINUES ACROSS NORTHEAST AND EAST-CENTRAL IL INTO NORTHERN/CENTRAL
IND TO NORTHWEST OH WITH THIS FORWARD-PROPAGATING MCS. THIS MCS IS
BEING MAINTAINED BY A FEED OF VERY STRONG INSTABILITY /MLCAPE
2000-3000 J PER KG/ OVER THE SOUTHERN HALF OF IL/INDIANA AS THE
LOW-LEVEL JET HAS VEERED TO WEST-SOUTHWESTERLY AND STRENGTHENED TO
40-45 KT. IN ADDITION... 700-MB WINDS HAVE VEERED TO
WEST-NORTHWESTERLY /MORE PARALLEL TO STRONG 500-MB FLOW/ AND
STRENGTHENED TO 40-45 KT. GIVEN THESE FACTORS...ESPECIALLY THE
ALREADY FORMED INTENSE REAR-INFLOW JET...STRONG/DAMAGING WINDS UP TO
AROUND 70 KT WILL BECOME LIKELY ACROSS CENTRAL INDIANA INTO
SOUTHWEST OH FROM 05-08Z.
..PETERS.. 06/23/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...RLX...CLE...JKL...ILN...LMK...IWX...IND...LOT...
ILX...DVN...
LAT...LON 41258905 41088791 41248704 41348603 41578548 41378473
40908366 40428312 40128219 39428233 38688277 38318326
38738531 39148606 39418661 39698751 40008843 40368851
40648917 40988926 41258905
from SPC Mesoscale Discussions http://1.usa.gov/28ODtlz
Be First to Comment