DrJack's BLIPSPOT for: THU 08/27 FrontRoyal_VA 709ft pt33650@38.996,-78.097,836ft BLIPSPOT sfc.temp. adjusted by -0.4 degF SPONSORED BY: Skyline Soaring Club RUC - Last Analysis,Validation Time = 09Z 21Z ----------------------------------- VALIDATION TIME --------------------------------------- 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z ------------------------------------------------------------------------------------------- Update Time - - - - - - - - - 0959z - - - Update Time FCST PERIOD - - - - - - - - - 12 hr - - - FCST PERIOD Temp@2m - - - - - - - - - 87.9 - - - Temp@2m Sfc.Heating - - - - - - - - - 54 - - - Sfc.Heating BL Depth - - - - - - - - - 78 - - - BL Depth Hcrit - - - - - - - - - 771 - - - Hcrit BL Top - - - - - - - - - 787 - - - BL Top Hgt.Variab. - - - - - - - - - 9445 - - - Hgt.Variab. W* - - - - - - - - - 71 - - - W* B/S - - - - - - - - - 2 - - - B/S BL Wind - - - - - - - - - 6 - - - BL Wind Direction - - - - - - - - - 199 - - - Direction Wind Shear - - - - - - - - - 0 - - - Wind Shear Max.Converg - - - - - - - - - -1 - - - Max.Converg CLOUDpotent - - - - - - - - - -5564 - - - CLOUDpotentl sfcLCL - - - - - - - - - 6352 - - - sfcLCL ODpotential - - - - - - - - - -6228 - - - ODpotential blCL - - - - - - - - - 7015 - - - blCL maxRH - - - - - - - - - 77 - - - maxRH CAPE - - - - - - - - - 1440 - - - CAPE Temp@2m - - - - - - - - - 87.9 - - - Temp@2m DewPt@2m - - - - - - - - - 62.7 - - - DewPt@2m Temp@Bot - - - - - - - - - 87.4 - - - Temp@Bot DewPt@Bot - - - - - - - - - 61.6 - - - DewPt@bot Sfc.Heating - - - - - - - - - 54 - - - Sfc.Heating BL Depth - - - - - - - - - 78 - - - BL Depth EXPERIMENT - - - - - - - - - 10 - - - EXPERIMENT EXPERIMENT2 - - - - - - - - - 12 - - - EXPERIMENT2 PROFILES OF WIND SPEED [kt] AND DIRECTION [degTrue] ----------------------------------- VALIDATION TIME --------------------------------------- Height 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z [ft] ------------------------------------------------------------------------------------------- [ft] 99080 20 099 99080 91628 19 080 91628 85887 20 068 85887 81114 18 074 81114 77001 12 085 77001 73369 8 116 73369 70075 6 125 70075 67042 4 119 67042 64223 5 145 64223 61488 5 256 61488 58655 17 233 58655 55733 22 232 55733 52941 24 249 52941 50437 45 261 50437 48217 58 247 48217 46220 60 235 46220 44385 54 232 44385 42679 51 236 42679 41087 52 236 41087 39605 57 234 39605 38223 61 231 38223 36887 60 229 36887 35524 55 233 35524 34104 54 235 34104 32628 54 237 32628 31086 53 244 31086 29466 51 249 29466 27767 45 249 27767 25988 39 246 25988 24131 34 249 24131 22203 28 258 22203 20196 25 256 20196 18106 25 247 18106 15981 26 249 15981 13937 22 249 13937 12075 19 242 12075 10416 17 244 10416 8941 15 238 8941 7625 14 232 7625 6452 12 225 6452 5411 12 221 5411 4490 11 215 4490 3676 10 211 3676 2946 10 206 2946 2299 10 204 2299 1760 9 202 1760 1345 9 201 1345 1060 8 201 1060 886 8 199 886 787 6*199 787 PARAMETER KEY: (basic parameter information is provided at http://www.drjack.info/BLIP/INFO/basic_parameters.html) (more complete parameter descriptions are at http://www.drjack.info/BLIP/RUC/INFO/parameters.html) (additional help is at http://www.drjack.info/BLIP/INFO/index.html, e.g. "For NEW USERS" section) --------------------------------------------------------------------------------------------------- Update Time = UTC Time of BLIPSPOT calculation FCST PERIOD = Hours from model initialization time Temp@2m = Temperature at 2m AGL [F] Sfc.Heating = Surface Heating of atmosphere [W/m^2] BL Depth = Depth of the Boundary (Mixing) Layer [ft] Hcrit = Height of Critical Updraft Strength [ftMSL] BL Top = Height of Boundary Layer Top (TI=0 height) [ftMSL] Hgt.Variab = Thermal Height Variability (difference between TI=+4{F} & TI=0 Heights) [ft] W* = Thermal Updraft Velocity (subtract glider sink rate to get vario) [fpm] B/S = Buoyancy/Shear Ratio (thermals may be unworkable if 5 or less) BL Wind = Wind Speed averaged through BL [kt] Direction = Wind Direction averaged through BL [degTrue] Max.Converg = Max. Vertical Velocity created by BL Convergence [x10^-2 kt] (note: BLIPMAPs provide better evaluation since convergence lines are usually mobile CLOUDpotent = Expect clouds at or above sfcLCL if positive (difference between H(TI=0) & sfcLCL) [ft] sfcLCL = Base of Lowest Clouds, if CLOUDpotent>0 (LCL = Lifting Condensation Level based upon sfc. humidity) [ftMSL] ODpotential = Expect extensive clouds at blCL if positive (difference between H(TI=0) & blCL) [ft] bLCL = Base of Extensive Clouds, if ODpotential>0 (bl CL = Condensation Level based upon BL humidity) [ftMSL] maxRH = Maximum Relative Humidity in BL [%] CAPE = Convective Available Potential Energy [J/kg] Temp@2m = Temperature at 2m AGL [F] DewPt@2m = Dew Point Temp. at 2m AGL [F] Temp@Bot = Temperature at 16m AGL (bottom of grid) [F] (intended for DrJack's use) DewPt@Bot = Dew Point Temp. at 16m AGL (bottom of grid) [F] (intended for DrJack's use) Sfc.Heating = Surface Heating of atmosphere [W/m^2] BL Depth = Depth of the Boundary (Mixing) Layer [ft] EXPERIMENT = Mystery variable for test purposes (intended for DrJack's use) * = Indicates BL Top (TI=0 Height) on profiles Note: printed heights are for 18Z - heights for other times differ slightly Results neglect thermals created by small-scale features not resolved by the smoothed model topography