Tuesday, August 23, 2011

Fire Weather Experiment... Day 2

HWT Fire Weather Experiment participants during domain selection map discussion.

Today we started our second day of the Fire Weather Experiment, building off of what we did yesterday by first examining the forecast we made against base reflectivity, NLDN lightning strikes and the GOES fire rating product (FRP) from UW-CIMSS. We did see the occurrence of multiple lightning strikes and relatively low base reflectivity over the area we forecast a possibility of dry thunderstorms, suggesting that there might have been some. While examining the FRP, we did see a few new start-ups over the area where lightning occurred (see figure below). However, as some participants noted, the fire rating product seemed to have only two colors for rating the fires, pale yellow or red. They were expecting to see a wider variety of fire 'ratings', so after the experiment was finished we made a few modifications to the color tables to help distinguish the ratings better.

Experimental probabilistic forecast for dry thunderstorms from 22 August 2011 with FRP detections overlaid.

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