** 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]:CravenBrooks_SigSvr ->Craven-Brooks significant severe is the product of MUCAPE x 0-6 KM shear. Median contours begin at 10000 m^3/s^3 with the union (dashed red) and intersection (dashed blue) at 10000 m^3/s^3 shown. [MDXN]:SigTor_Param ->Signficant tornado parameter. Median contours begin at 1 with the union (dashed red) and intersection (dashed blue) at 1 shown. [MDXN]:Supercell_Comp_Param ->Signficant tornado parameter. Median contours begin at 1 with the union (dashed red) and intersection (dashed blue) at 1 shown. [MNSD]:CravenBrooks_SigSvr ->Mean and standard deviation of Craven- Brooks Significant Severe (MUCAPE X 6 KM shear) [MNSD]:SigTor_Param ->Mean and standard deviation of significant tornado parameter [MN]:Supercell_Composite(Eff_Shear) [CPR]:ConPcpn_1000MUCAPE_30EffShr ->Product of the probabilities: Convective precip >= .01"; MUCAPE >= 1000 J/kg; Effective Shear >= 30 kts [CPR]:ConPcpn_1000MUCAPE_40EffShr ->As above but MUCAPE >= 1000 J/kg and effective shear >= 40 kts [CPR]:ConPcpn_2000MUCAPE_30EffShr ->As above but MUCAPE >= 2000 J/kg and effective shear >= 30 kts [CPR]:ConPcpn_2000MUCAPE_40EffShr ->As above but MUCAPE >= 2000 J/kg and effective shear >= 40 kts [CPR]:ConPcpn_3000MUCAPE_20EffShr ->As above but MUCAPE >= 3000 J/kg and effective shear >= 20 kts [CPR]:ConPcpn_500MUCAPE_30EffShr ->As above but MUCAPE >= 500 J/kg and effective shear >= 30 kts [CPR]:ConPcpn_500MUCAPE_40EffShr ->As above but MUCAPE >= 500 J/kg and effective shear >= 40 kts [PR]:CravenBrooks_SigSvr>=20000 ->Probability Craven-Brooks significant severe (MUCAPE X 0-6 KM shear) >= 20000 m^3/s^3 [PR]:CravenBrooks_SigSvr>=40000 ->As above but for 40000 m^3/s^3 [PR]:SigTor_Param>=1 ->Probability significant tornado parameter >= 1 [PR]:SigTor_Param>=3 ->As above but for significant tornado parameter >= 3 [PR]:Supercell_Comp_Param>=1 ->Probability supercell composite parameter >= 1 [PR]:Supercell_Comp_Param>=3 ->As above but for supercell composite parameter >= 3 [SP]:CravenBrooks_SigSvr_10000 ->Spaghetti plot of Craven-Brooks significant severe parameter at 10000 m^3/s^3 [SP]:CravenBrooks_SigSvr_20000 ->As above but for Craven-Brooks index of 20000 m^3/s^3 [SP]:CravenBrooks_SigSvr_40000 ->As above but for Craven-Brooks index of 40000 m^3/s^3 [SP]:SigTor_Param_1 ->Spaghetti plot of significant tornado index of 1 [SP]:Supercell_Comp_Param_1 ->Spaghetti plot supercell composite parameter of 1All 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.