DrJack's BLIPSPOT for: THU 08/20 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 - - - - - - - - - 79.9 - - - Temp@2m Sfc.Heating - - - - - - - - - 35 - - - Sfc.Heating BL Depth - - - - - - - - - 78 - - - BL Depth Hcrit - - - - - - - - - 770 - - - Hcrit BL Top - - - - - - - - - 787 - - - BL Top Hgt.Variab. - - - - - - - - - 2751 - - - Hgt.Variab. W* - - - - - - - - - 63 - - - W* B/S - - - - - - - - - 3 - - - B/S BL Wind - - - - - - - - - 4 - - - BL Wind Direction - - - - - - - - - 310 - - - Direction Wind Shear - - - - - - - - - 0 - - - Wind Shear Max.Converg - - - - - - - - - 1 - - - Max.Converg CLOUDpotent - - - - - - - - - -1956 - - - CLOUDpotentl sfcLCL - - - - - - - - - 2743 - - - sfcLCL ODpotential - - - - - - - - - -3827 - - - ODpotential blCL - - - - - - - - - 4614 - - - blCL maxRH - - - - - - - - - 92 - - - maxRH CAPE - - - - - - - - - 1210 - - - CAPE Temp@2m - - - - - - - - - 79.9 - - - Temp@2m DewPt@2m - - - - - - - - - 70.1 - - - DewPt@2m Temp@Bot - - - - - - - - - 79.3 - - - Temp@Bot DewPt@Bot - - - - - - - - - 69.3 - - - DewPt@bot Sfc.Heating - - - - - - - - - 35 - - - Sfc.Heating BL Depth - - - - - - - - - 78 - - - BL Depth EXPERIMENT - - - - - - - - - 70 - - - EXPERIMENT EXPERIMENT2 - - - - - - - - - 16 - - - 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] 99189 11 084 99189 91733 20 097 91733 85998 22 082 85998 81239 21 081 81239 77125 18 093 77125 73495 10 104 73495 70214 7 147 70214 67185 8 190 67185 64364 9 213 64364 61627 10 234 61627 58791 15 245 58791 55888 28 246 55888 53151 42 245 53151 50713 51 241 50713 48543 60 234 48543 46581 62 231 46581 44779 65 227 44779 43105 70 225 43105 41532 69 221 41532 40041 69 221 40041 38625 69 230 38625 37253 69 237 37253 35855 64 233 35855 34406 59 228 34406 32908 55 231 32908 31341 54 235 31341 29693 53 240 29693 27963 50 241 27963 26154 46 241 26154 24267 43 240 24267 22308 42 245 22308 20272 42 249 20272 18157 43 251 18157 16008 43 252 16008 13939 42 252 13939 12060 37 254 12060 10392 28 251 10392 8912 25 241 8912 7594 23 232 7594 6420 20 232 6420 5379 17 239 5379 4461 15 251 4461 3649 14 267 3649 2924 12 280 2924 2283 11 285 2283 1749 7 297 1749 1339 6 302 1339 1057 6 305 1057 885 5*308 885 787 4*310 787 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