A deepening mid-latitude cyclone (located over southeastern Colorado / southwestern Kansas at 12 UTC) began to transition from the mature stage to the occluded stage during the morning hours on 21 September. The tell-tale occluding cyclone signature... Read More
Cold air advection in the wake of a secondary cold front helped to generate some well-defined lake effect rain bands over Lake Huron on 20 September (QuickTime animation of GOES-12 visible images). The cold air mass allowed Read More
The large (74,000-acre) “Day Wildfire” was still burning in the Los Padre National Forest just northwest of Los Angeles on 17 September — the MODIS true-color image (above) shows the thick plumes of smoke drifting westward. Strong offshore winds helped the fire (which had been... Read More
The AWIPS MODIS 6.7 micrometer “water vapor channel” image (above) depicts an excellent example of a mountain wave signature over parts of the southern and central Rocky Mountains region, as strong winds associated with a jet stream axis were interacting with the rugged terrain.... Read More
