Cirrostratus
Specimen #1
 
 




Photograph Data
Date: 23 November 1999
Time: 2135 UTC (3:35 p.m. CST)
Location: Columbia, MO, USA


Synopsis
A sundog (1) along with cirrostratus fibratus (2) and cirrostratus undulatus (3).  The cirrus clouds were ahead of an approaching cold front extending from Iowa southwestward through Texas.

Representative Surface Observation

Station:  Columbia Regional Airport
Date:  23 November 1999
Time:  2154 UTC  (3:54 pm. CST)
 
Wind direction 280 degrees (west)
Wind speed 15 knots, with gusts to 22 knots
Visibility 10 statute miles
Present weather None
Sky condition Overcast 1,100 feet
Temperature 6.7 C
Dew point 4.4 C
Altimeter setting 30.04 inches Hg
Sea level pressure 1017.3 mb
Remarks None reported


Analyses
 
 
Surface 925 mb 850 mb 700 mb 500 mb 300 mb
Upper Air Sounding Satellite Image