[MCD] SWOMCD

Tue May 23 00:31:23 UTC 2006

ACUS11 KWNS 230028
SWOMCD
SPC MCD 230027 
MTZ000-IDZ000-ORZ000-WAZ000-230230-

MESOSCALE DISCUSSION 0944
NWS STORM PREDICTION CENTER NORMAN OK
0727 PM CDT MON MAY 22 2006

AREAS AFFECTED...EASTERN WA/NORTHEAST ORE/NORTHERN AND CENTRAL
ID/FAR WESTERN MT

CONCERNING...SEVERE THUNDERSTORM WATCH 377...

VALID 230027Z - 230230Z

SEVERE THUNDERSTORM WATCH 377 CONTINUES UNTIL 05Z...WITH CONTINUED
THREAT FOR ISOLATED LARGE HAIL/STRONG WIND GUSTS THROUGH EARLY/MID
EVENING.

STORMS WITH EARLIER HISTORY OF LARGE HAIL/STRONG WIND GUSTS CONTINUE
TO PROGRESS NORTH-NORTHEAST FROM FAR NORTHWEST MT/FAR NORTHERN ID
INTO BRITISH COLUMBIA AT THIS TIME. FURTHER SOUTHWEST...LIKELY TIED
TO PRIMARY BAND OF FORCING FOR ASCENT PER WATER VAPOR
IMAGERY...NORTHWEST-SOUTHEAST ORIENTED ARC OF STORMS IS ADVANCING
NORTH-NORTHEAST ACROSS EASTERN WA/FAR NORTHEAST ORE AND SOUTHERN ID
AS OF 0030Z. AHEAD OF THESE STORMS...MODEST CLOUD BREAKS/HEATING
WILL MAINTAIN LOCALLY MODERATE INSTABILITY...WITH MODIFIED 00Z
OBSERVED SPOKANE WA RAOB SUPPORTIVE OF MOST UNSTABLE CAPE VALUES OF
1500-1800 J/KG WHERE MIDDLE 60S TO LOWER 70S TEMPERATURES PERSIST.
IT APPEARS THE PRIMARY SEVERE THREAT WILL CONTINUE ACROSS THE
NORTHEAST TWO-THIRDS OF WW 377 ACROSS FAR EASTERN WA/NORTHERN
ID/WESTERN MT THROUGH EARLY/MID EVENING.

..GUYER.. 05/23/2006

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

ATTN...WFO...MSO...BOI...OTX...PDT...

46121897 46981964 47941855 48581825 48801647 48801429
48131362 47801331 47721415 47331407 47411445 47321494
46881508 46321477 45131511 44411556 44741620 44541679
44531705 44591776 44721796 45081814 45121887 