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Re: RUC 252 CAPE

Posted By: Stan Benjamin
Date: 3-January-11 1959Z

In Response To: RUC 252 CAPE (Alexander Gibbs)

Alex, What you see as CAPE "between two levels" is the CAPE with the most unstable parcel from 0-300 hPa from the surface. Yes, it is equivalent to MUCAPE. There is more information on CAPE (and other RUC/RR diagnostic fields) at this website: http://ruc.noaa.gov/vartxt.html#CAPE-def Below is what I get running wgrib2 on a RUC GRIB2 file; variable 310 is this most unstable CAPE with parcel from 0-300 hPa. Hope this helps. Stan Benjamin -------- 309:18755764:d=2011010318:HGT:equilibrium level:18 hour fcst: 310:18837135:d=2011010318:TMP:tropopause:18 hour fcst: 311:18886426:d=2011010318:CAPE:255-0 mb above ground:18 hour fcst: 312:18908074:d=2011010318:CIN:255-0 mb above ground:18 hour fcst: 313:18927239:d=2011010318:TMP:surface:18 hour fcst: 314:19056076:d=2011010318:ABSV:500 mb:18 hour fcst: 315:19078412:d=2011010318:HGT:lowest level of the wet bulb zero:18 hour fcst: 316:19256010:d=2011010318:REFC:entire atmosphere (considered as a single layer):18 hour fcst : 317:19314534:d=2011010318:REFD:1000 m above ground:18 hour fcst: 318:19352060:d=2011010318:REFD:4000 m above ground:18 hour fcst: 319:19383299:d=2011010318:NCPCP:surface:0-18 hour acc fcst: 320:19397680:d=2011010318:ACPCP:surface:0-18 hour acc fcst: 321:19411322:d=2011010318:IMGD:entire atmosphere (considered as a single layer):18 hour fcst : [benjamin@fe2 grib2]$ wgrib2 1100318000018 | more

Messages In This Thread

RUC 252 CAPE -- Alexander Gibbs -- 3-January-11 1926Z

ADMIN! Re: RUC 252 CAPE -- Stan Benjamin -- 3-January-11 1959Z

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