DrJack's BLIPSPOT for: THU 04/23 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 - - - - - - 0659z - - 1002z - - - Update Time FCST PERIOD - - - - - - 12 hr - - 12 hr - - - FCST PERIOD Temp@2m - - - - - - 78.3 - - 80.7 - - - Temp@2m Sfc.Heating - - - - - - 281 - - 95 - - - Sfc.Heating BL Depth - - - - - - 6315 - - 8207 - - - BL Depth Hcrit - - - - - - 5149 - - 5870 - - - Hcrit BL Top - - - - - - 7024 - - 8916 - - - BL Top Hgt.Variab. - - - - - - 3577 - - 3487 - - - Hgt.Variab. W* - - - - - - 498 - - 387 - - - W* B/S - - - - - - 8 - - 5 - - - B/S BL Wind - - - - - - 11 - - 13 - - - BL Wind Direction - - - - - - 314 - - 300 - - - Direction Wind Shear - - - - - - 9 - - 9 - - - Wind Shear Max.Converg - - - - - - 8 - - 10 - - - Max.Converg CLOUDpotent - - - - - - -142 - - 137 - - - CLOUDpotentl sfcLCL - - - - - - 7166 - - 8779 - - - sfcLCL ODpotential - - - - - - -792 - - -808 - - - ODpotential blCL - - - - - - 7816 - - 9724 - - - blCL maxRH - - - - - - 67 - - 81 - - - maxRH CAPE - - - - - - 150 - - 80 - - - CAPE Temp@2m - - - - - - 78.3 - - 80.7 - - - Temp@2m DewPt@2m - - - - - - 49.5 - - 44.8 - - - DewPt@2m Temp@Bot - - - - - - 76.3 - - 79.7 - - - Temp@Bot DewPt@Bot - - - - - - 48.5 - - 43.7 - - - DewPt@bot Sfc.Heating - - - - - - 281 - - 95 - - - Sfc.Heating BL Depth - - - - - - 6315 - - 8207 - - - BL Depth EXPERIMENT - - - - - - 0 - - 23 - - - EXPERIMENT EXPERIMENT2 - - - - - - 7 - - 6 - - - 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] 97527 32 240 41 255 97527 90091 31 257 29 248 90091 84375 28 249 23 244 84375 79650 25 230 15 244 79650 75579 22 227 17 238 75579 71968 12 227 12 214 71968 68691 3 245 6 260 68691 65686 5 239 7 277 65686 62899 3 273 7 265 62899 60193 14 306 13 310 60193 57375 21 299 20 314 57375 54456 25 301 27 298 54456 51679 29 305 35 296 51679 49201 33 303 39 293 49201 47010 36 304 38 301 47010 45049 45 307 44 309 45049 43273 50 316 48 312 43273 41645 57 323 51 310 41645 40131 56 327 52 306 40131 38706 56 324 50 305 38706 37358 54 322 46 306 37358 36052 49 326 42 307 36052 34723 46 326 38 307 34723 33342 42 319 37 310 33342 31911 38 319 33 312 31911 30415 33 323 27 322 30415 28841 30 327 24 334 28841 27189 28 326 24 336 27189 25457 26 323 24 324 25457 23645 26 316 22 310 23645 21755 27 308 19 307 21755 19785 25 303 18 302 19785 17732 22 295 16 293 17732 15638 21 291 18 290 15638 13626 19 296 20 301 13626 11809 20 299 17 295 11809 10195 20 298 16*294 10195 8756 19 297 16*295 8756 7470 17*299 15 296 7470 6325 15*303 14 298 6325 5306 14 305 13 300 5306 4407 12 311 13 301 4407 3611 11 315 12 303 3611 2897 11 318 11 304 2897 2265 10 322 11 305 2265 1738 9 324 10 305 1738 1332 9 326 10 306 1332 1053 8 327 9 306 1053 883 8 327 9 306 883 786 6 328 7 306 786 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