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HW2_092211 - MSC 243 HOMEWORK#2 Due SATELLITE AND RADAR...

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MSC 243 HOMEWORK #2 Due Sep 27, 2011 SATELLITE AND RADAR IMAGERY Goals: To learn how to use satellite and radar data to help make weather forecasts, and how not to get fooled by the data! Tasks: (1) Using the satellite imagery provided, go through Cases 1-3. (2) We will mainly be using the NWS WSR-88D Radar output during this course. Read carefully the FAQ on http://www.srh.noaa.gov/srh/jetstream/doppler/radarfaq.htm (3) Go through the radar tutorial.
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CASE 1 – A dying tropical storm The Water Vapor, Visible, Infrared, and Enhanced Infrared images show the remains of Tropical Storm Ignacio as it approached the California coast. Overnight on August 19, the remnants of Ignacio brought 0.72 inches of rain to San Francisco, barely missing the all-time record MONTHLY rainfall for August. At Sacramento, CA, it was the first time it ever rained on August 20 since weather records began in 1877! 1. Look first at the water vapor image, on which the fuzzy countenance of the remnants of Ignacio can be seen along the coast of central California. Ignacio subsequently moved into the Pacific Northwest, bringing rain to parts of Oregon and Washington. From this direction of movement, we can assume that the high-altitude winds that were steering weather systems at the time were blowing rather swiftly from the south-southwest. Based on this assumption, what would you forecast for San Francisco for later in the day and at night - breaking clouds or overcast? What feature on the water vapor image would have likely arrived and influenced San Francisco later that day and at night? Explain. 2. Now look at the infrared (IR) image. It is difficult to say, at first glance, whether there are any clouds along and just off the coasts of Baja California and southern California (south of the remnants of Ignacio). By looking at another type of satellite image, can you be more specific about whether there are clouds are not? Which image did you use to decide?
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