** 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]:2m_DewPoint ->2 meter dew point. Median dew point (contours start at 55 degF) with union (dashed red) and intersection (dashed blue) at 55 degF. [MNSD]:2m_DewPoint ->Mean and standard deviation of 2 meter dew point [MNSD]:850MB_DewPoint ->As above but at 850 mb (degC) [MN]:2m_DewPoint ->Mean 2 meter dew point (degF) [PR]:2m_DewPoint>=50F ->Probability 2 meter dew point >= 50 degf [PR]:2m_DewPoint>=60F ->Probability 2 meter dew point >= 60 degf [PR]:2m_DewPoint>=70F ->Probability 2 meter dew point >= 70 degf [PR]:Cloud_Top_Temp_<=-12C ->Probability cloud top temperature less than or equal to -12 degC. Cloud layer is defined as layers over 100 mb thick with dew point depression <= 3 degC. Temperatures less than -12 degC indicate ice crystals are likely present in the cloud. [PR]:Cloud_Top_Temp_>=_-8C ->As above but for temperatures >= -8 degC. Temperatures warmer than -8 degC indicate that ice crystals are not likley to be present in the cloud. [SP]:2m_DewPoint_50F ->Spaghetti chart of 50 degF isodrosotherm [SP]:2m_DewPoint_60F ->Spaghetti chart of 60 degF isodrosotherm [SP]:2m_DewPoint_70F ->Spaghetti chart of 70 degF isodrosothermAll 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.