DrJack's BLIPSPOT for: TUE 04/21 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 - - - - - - 57.4 - - 64.0 - - - Temp@2m Sfc.Heating - - - - - - 356 - - 141 - - - Sfc.Heating BL Depth - - - - - - 3878 - - 3542 - - - BL Depth Hcrit - - - - - - 3340 - - 2688 - - - Hcrit BL Top - - - - - - 4587 - - 4251 - - - BL Top Hgt.Variab. - - - - - - 1025 - - 2201 - - - Hgt.Variab. W* - - - - - - 453 - - 327 - - - W* B/S - - - - - - 13 - - 5 - - - B/S BL Wind - - - - - - 6 - - 11 - - - BL Wind Direction - - - - - - 210 - - 175 - - - Direction Wind Shear - - - - - - 5 - - 6 - - - Wind Shear Max.Converg - - - - - - -1 - - 8 - - - Max.Converg CLOUDpotent - - - - - - -3981 - - -6084 - - - CLOUDpotentl sfcLCL - - - - - - 8569 - - 10335 - - - sfcLCL ODpotential - - - - - - -10533 - - -11929 - - - ODpotential blCL - - - - - - 15120 - - 16180 - - - blCL maxRH - - - - - - 82 - - 76 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 57.4 - - 64.0 - - - Temp@2m DewPt@2m - - - - - - 22.7 - - 21.4 - - - DewPt@2m Temp@Bot - - - - - - 55.0 - - 62.8 - - - Temp@Bot DewPt@Bot - - - - - - 21.6 - - 20.3 - - - DewPt@bot Sfc.Heating - - - - - - 356 - - 141 - - - Sfc.Heating BL Depth - - - - - - 3878 - - 3542 - - - BL Depth EXPERIMENT - - - - - - 29 - - 6 - - - EXPERIMENT EXPERIMENT2 - - - - - - 2 - - 2 - - - 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] 97506 26 238 27 264 97506 90088 29 242 29 244 90088 84419 26 248 23 239 84419 79726 19 245 19 232 79726 75665 13 221 17 219 75665 72041 11 227 12 216 72041 68745 17 244 15 261 68745 65737 18 213 16 251 65737 62960 2 257 13 266 62960 60264 20 296 20 293 60264 57442 33 290 31 286 57442 54510 39 289 39 285 54510 51708 43 294 43 288 51708 49191 46 293 45 288 49191 46939 46 291 45 289 46939 44905 44 293 46 293 44905 43062 45 300 45 295 43062 41380 51 303 45 296 41380 39830 54 302 48 298 39830 38389 54 307 50 299 38389 37041 55 314 48 299 37041 35740 54 316 47 299 35740 34418 52 319 45 299 34418 33043 50 321 45 299 33043 31617 49 321 44 301 31617 30123 50 320 42 303 30123 28550 52 318 42 305 28550 26898 53 317 40 306 26898 25168 53 315 39 306 25168 23363 54 314 39 307 23363 21486 52 314 40 306 21486 19535 51 314 41 305 19535 17503 52 317 41 305 17503 15430 47 321 43 311 15430 13426 41 313 45 317 13426 11601 39 306 47 311 11601 9979 36 309 44 297 9979 8542 29 311 38 281 8542 7271 26 300 30 266 7271 6148 20 280 20 246 6148 5156 10*230 14 217 5156 4282 9*219 13*211 4282 3512 8 214 12*191 3512 2821 7 210 12 179 2821 2211 6 208 12 174 2211 1702 6 204 11 171 1702 1311 5 201 11 169 1311 1042 5 201 11 167 1042 879 4 201 10 166 879 785 4 201 8 165 785 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