NOAA-NESDIS
Regional And Mesoscale Meteorology Team
Daily Satellite Discussion
Friday November 21, 1997
Figure 1
Eta 500 mb analysis from 12 UTC 11/21/97
(click to enlarge)
Figure 2
GOES-8 Water Vapor image 1145 UTC 11/21/97
(click to enlarge)
The location, movement, and behavior of shortwaves is of interest to the forecaster. Figure 1 shows 500 mb absolute vorticity as analyzed by the ETA model at 12 UTC 11/21/97. The maximum which will be watched by the eastern states over the next few days is evident in north Texas. However, the next run of the ETA is twelve hours away. Figure 2 is a GOES-8 water vapor image from 1145 UTC, which also shows the shortwave. Using satellite data, the shortwave can be monitored every 15 to 30 minutes as seen in the accompanying loop.

The ETA model image came from Purdue WXP.
Jack Dostalek

We welcome your comments and discussion at ramsdis@comet.ucar.edu

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