[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 220217
SWOMCD
SPC MCD 220216 
OHZ000-MIZ000-KYZ000-INZ000-220315-

MESOSCALE DISCUSSION 1758
NWS STORM PREDICTION CENTER NORMAN OK
0916 PM CDT WED JUL 21 2004

AREAS AFFECTED...CENTRAL-ERN IND INTO NWRN-WRN OH

CONCERNING...SEVERE THUNDERSTORM WATCH 664...

VALID 220216Z - 220315Z

DAMAGING WIND THREAT TO CONTINUE ACROSS CENTRAL AND ERN IND INTO
NWRN OH DURING THE NEXT 2-3 HOURS /UNTIL AROUND 04Z/.

REGIONAL RADAR TRENDS SHOW THE BOW ECHO ALONG THE SERN MI/NWRN OH
BORDER REGION HAS DECREASED IN FORWARD SPEED AS IT MOVED EWD INTO AN
AIR MASS THAT HAS BECOME MORE STABLE.  EXTENSIVE COLD POOL OVER FAR
SRN MI AND NRN IND IS MAINTAINING THE FORWARD MOTION OF THE LINE OF
STORMS THAT CURRENTLY EXTENDS FROM NWRN OH INTO CENTRAL IND...
DESPITE THE SLOW STABILIZATION OF THE AIR MASS.  OVERALL LINE IS
MOVING TO THE ESE AT 30 KT WITH EMBEDDED BOW SEGMENTS MOVING UP TO
AROUND 35 KT.  THE POTENTIAL FOR AN ADDITIONAL WW WILL BE LOW...AS
THE DOWNSTREAM AIR MASS ACROSS WEST CENTRAL-SWRN OH/SERN IND
CONTINUES DIURNAL STABILIZATION THIS EVENING.  HOWEVER...IF A COLD
POOL CAN STRENGTHEN WITH THE BOWING SEGMENT ACROSS CENTRAL IND...
THEN THE DAMAGING WIND THREAT MAY EXTEND INTO PORTIONS OF EAST
CENTRAL-SERN IND THROUGH 04Z.

..PETERS.. 07/22/2004

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...CLE...ILN...DTX...IWX...IND...

39218727 39528717 39848589 40888547 41018453 41978370
41578332 39938369 38998487 38908650 

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