SWOMCD
SPC MCD 031608
CAZ000-031715-
MESOSCALE DISCUSSION 0192
NWS STORM PREDICTION CENTER NORMAN OK
1008 AM CST TUE MAR 03 2009
AREAS AFFECTED...SRN SACRAMENTO VALLEY AND NRN SAN JOAQUIN VALLEY
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 031608Z - 031715Z
LOW-TOPPED CONVECTIVE LINE...PRODUCING SOME LIGHTNING...WILL
PROGRESS ENEWD ACROSS THE SRN SACRAMENTO AND NRN SAN JOAQUIN VALLEYS
THROUGH 18-19Z. ISOLATED STRONGER WIND GUSTS WILL BE POSSIBLE...BUT
OVERALL LIMITED SEVERE THREAT WILL PRECLUDE THE NEED FOR A WATCH.
REGIONAL RADARS INDICATED A LOW-TOPPED LINE OF CONVECTION EXTENDING
FROM WRN BUTTE COUNTY SWWD TO JUST EAST OF SFO TO SAN MATEO COUNTY
AND THEN OFFSHORE. THIS LINE IS TRACKING EWD AT 30-35 KT WITH
SIMILAR WIND GUSTS PRODUCED AS IT MOVED THROUGH THE SFO METRO.
ALTHOUGH INSTABILITY IS WEAK...VERY LITTLE INHIBITION AND LOW LEVEL
LAPSE RATES AROUND 7 C/KM SUGGEST THE CONTINUED POTENTIAL FOR MAINLY
SUB-SEVERE WIND GUSTS TO REACH THE SURFACE.
..PETERS.. 03/03/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...HNX...STO...MTR...
LAT...LON 37832199 38232194 38672199 39192178 39422165 39492147
39252114 38922088 38212040 37821991 37321995 36972066
37052120 37352161 37832199
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