The Weather Forecasting Forum

For those who are are not aware of it, there is an excellent site for model output maps at http://www.meteo.psu.edu/~gadomski/ewall.html They call it the "Electronic map wall' or E-wall. Just about any model you could ask for is there, for just about any initialization time or number of hours o...

Dear Marc, Thank you for your reply. I think you may be correct in your interpretation. I was looking at a sounding for KGRB in my RAOB program and paid close attention to the data display as I moved the cursor up. Sure enough, the -10C level showed a RH of 78%. At -12C, the RH had dropped. This, I ...

I was recently checking out the AFD, and came across a phrase that left me wondering as to it's exact meaning. The forecaster stated that the freezing rain would rapidly change to freezing drizzle as the -10C isotherm unsaturated. I assume that they are speaking of a sounding isotherm, and and not a...

I am encountering a diffficulty with getting mixing ratios to plot in isentropic analysis mode. DA seems to be working on the request, and then states it is READY, but no lines are plotted. On one 285K surface, the 1 g/kg line plotted down near Florida, but no others showed. On any other chart,(290,...

Dear maxinimnn: I've had a similar problem with DA. The only way that I have found around this difficulty is to download radar data separately. If I try to download with other data, i.e. METAR surface data, I get (unknown size) of 686K.. When I download it by itself I get a message that states how m...

Dear Mike:

Thank you very much. That explanation I could understand easily! Why can't textbook editors be as clear and to the point?

Can anyone help me understand how a surface high temperature prediction is made from the 850mb chart temperatures? I have consulted several texts on the subject, but either they are unclear, or I am unable to grasp their explanations. Thanks.