Note the differences in the bottom two images over the eastern Dakotas. There are some mid-level clouds showing up on the Differential Water Vapor image, obscuring the view. Is there a layer of dry air below those higher clouds? The AllSkyLAP 700-300mb LPW product seems to think so. I'm not sure if this due to the model background being used under the thicker clouds or if the cloud retrieval process is working its magic and is accurate. It would really be nice to get some sort of "ground truth" to determine how accurate the AllSkyLAP 700-300mb LPW product really is in this area. The same could also be said across northeast MT and northwest ND, but one can actually see that the model background is being used there. It is harder to make that determination across the eastern Dakotas.
It may actually be beneficial if the model background in AllSkyLAP products stood out a little better to highlight "use data with caution" areas for forecasters. Otherwise, because of the blending being done, a busy forecaster might mistake these areas for real, satellite-observed data.
No comments:
Post a Comment