IEM Daily Feature
Wednesday, 14 May 2008

More energetic year

Posted: 14 May 2008 07:16 AM


View larger image
Altimer for KDSM
While there are more scientificly rigorous ways to illustrate this, a simple plot of surface air pressure for this year and last shows wider variability this year and lower values for surface low pressure systems. You can think of this plot as a measure of storm strength and frequency with each dip representing a storm system passage. The forecast calls for a stretch of higher pressure, which is usually a sign of sinking air and thus less chance of precipitation.

Voting:
Good = 20
Bad = 7