[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 220428
SWOMCD
SPC MCD 220427 
OKZ000-TXZ000-220600-

MESOSCALE DISCUSSION 1374
NWS STORM PREDICTION CENTER NORMAN OK
1127 PM CDT MON JUN 21 2004

AREAS AFFECTED...PORTIONS WRN...CENTRAL AND SRN OK...AND SMALL PART
OF NW TX

CONCERNING...HEAVY RAINFALL...SEVERE THUNDERSTORM WATCH 507...

VALID 220427Z - 220600Z

MEASURED SEVERE GUSTS AND MARGINALLY SEVERE HAIL HAVE BEEN REPORTED
WITH CONVECTION OVER WRN OK -- NOW MOVING PAST CSM -- DURING PAST
1-2 HOURS.  EXPECT SOME SEVERE WIND/HAIL POTENTIAL TO EXTEND
SWD/SEWD TOWARD FSI/SPS REGION...POSSIBLY AS FAR E AS PORTIONS OKC
AREA-- THROUGH NEXT FEW HOURS. LATTER AREA IS BEING MONITORED FOR
POSSIBLE NEW WW.

MODIFIED RAOBS AND RUC FCST SOUNDINGS SHOW APPROXIMATELY 1500-2000
J/KG MUCAPE AVAILABLE TO THIS ACTIVITY.  LOW LEVEL STORM-RELATIVE
INFLOW SHOULD REMAIN FAVORABLE WITH ACTIVITY MOVING SEWD INTO 20-30
KT ABSOLUTE FLOW -- THROUGH 0-3 KM AGL LAYER.  MOISTURE WILL REMAIN
PLENTIFUL THROUGHOUT LOW LEVELS WITH 70-90 PERCENT RH IN LOWEST 300
MB LAYER...15-16 G/KG MEAN MIXING RATIOS AND AROUND 1.75 INCH PW. 
THIS WILL SUPPORT LOCALIZED RAIN RATES 2-3 INCHES/HOUR...IN ADDITION
TO AFOREMENTIONED SEVERE THREAT.  CELL MERGERS WILL FURTHER ENHANCE
HEAVY RAIN HAZARD.

..EDWARDS.. 06/22/2004

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

ATTN...WFO...OUN...FWD...

36919735 36059998 34979956 35809693 

34989945 35189891 35499795 35659741 35589746 34159714
33619865 

WWWW