** DEFINITIONS ** [CPR] = Combined probability (Prob_Field_1 x Prob_Field_2 x ... x Prob_Field_N) [MAX] = Maximum from any member at each grid point [MD] = Median [MDXN] = Median value contoured. The dashed red line is the union of all members at the lowest contour value plotted (i.e., where at least one of the 16 members exceeds the value of the first median contour). The dashed blue line is the intersection of all members at the lowest contour value plotted (i.e., where all 16 members exceed the value value of the first median contour). [MIN] = Minimum from any member at each grid point [MN] = Mean [MNSD] = Mean and Standard Deviation [PM] = Probability Matched Mean Value [PR] = Probability (percentage of members meeting/exceeding some condition) [SP] = Spaghetti ** SPECIFIC INFORMATION ON AVAILABLE FIELDS ** [MDXN]:MLCAPE ->0 to 90 MB AGL parcel averaged CAPE. Median MLCAPE (contours start at 500 J/kg) with union (dashed red) and intersection (dashed blue) at 500 J/kg. [MDXN]:MUCAPE ->As above but for the most unstable parcel (unmixed) surface to 500 mb AGL [MDXN]:SFC_CAPE ->As above but for the surface parcel [MNSD]:MLCAPE ->Mean and standard deviation of 0 to 90 MB AGL parcel averaged CAPE [MNSD]:MUCAPE ->As above but for the most unstable parcel (unmixed) surface to 500 mb AGL [MNSD]:SFC_CAPE ->As above but for the surface based parcel [PR]:700-500MB_LR>=_8.0 ->Probability 700 to 500 mb lapse rate >= 8 degC [PR]:DCAPE>=1000 ->Probability downdraft available potential energy is >= 1000 J/kg [PR]:MLCAPE>=_1000 ->Probability MLCAPE (0-90 mb parcel ave) >= 1000 J/kg [PR]:MLCAPE>=_2000 ->As above but for 2000 J/kg [PR]:MLCAPE>=_3000 ->As above but for 2000 J/kg [PR]:MLCAPE>=_500 ->As above but for 500 J/kg [PR]:MUCAPE_to_500mb>=_1000 ->Probability most unstable CAPE (surface to 500 mb AGL, unmixed parcel) >= 1000 J/kg [PR]:MUCAPE_to_500mb>=_2000 ->As above but for 2000 J/kg [PR]:MUCAPE_to_500mb>=_3000 ->As above but for 3000 J/kg [PR]:MUCAPE_to_500mb>=_500 ->As above but for 500 J/kg [PR]:SFC_CAPE>=1000 ->Probability surface based CAPE >= 1000 J/kg [PR]:SFC_CAPE>=2000 ->Probability surface based CAPE >= 2000 J/kg [PR]:SFC_CAPE>=3000 ->Probability surface based CAPE >= 3000 J/kg [PR]:SFC_CAPE>=500 ->Probability surface based CAPE >= 500 J/kgAll SREF information presented herein is for guidance purposes only and should not be confused with official SPC operational forecasts. Links to official SPC operational products are found at the bottom of every menu. Many of the SREF products were developed for testing the utility of SREF analysis in the prediction of SPC mission critical items, including: thunderstorms and severe thunderstorms, large scale critical fire weather conditions, and mesoscale areas of hazardous winter weather. In order to accomplish this goal and test new and unqiue methods of SREF application in an operational environment, many fields not produced in the NCEP postprocessor were calculated locally for SPC purposes.