DrJack's BLIPSPOT for: SUN 04/26 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 - - - - - - 53.1 - - 56.0 - - - Temp@2m Sfc.Heating - - - - - - 135 - - 81 - - - Sfc.Heating BL Depth - - - - - - 2781 - - 76 - - - BL Depth Hcrit - - - - - - 2111 - - 768 - - - Hcrit BL Top - - - - - - 3490 - - 785 - - - BL Top Hgt.Variab. - - - - - - 1401 - - 4501 - - - Hgt.Variab. W* - - - - - - 296 - - 75 - - - W* B/S - - - - - - 5 - - 2 - - - B/S BL Wind - - - - - - 11 - - 7 - - - BL Wind Direction - - - - - - 021 - - 026 - - - Direction Wind Shear - - - - - - 6 - - 0 - - - Wind Shear Max.Converg - - - - - - 2 - - 2 - - - Max.Converg CLOUDpotent - - - - - - 359 - - -2912 - - - CLOUDpotentl sfcLCL - - - - - - 3131 - - 3697 - - - sfcLCL ODpotential - - - - - - 190 - - -2826 - - - ODpotential blCL - - - - - - 3300 - - 3611 - - - blCL maxRH - - - - - - 100 - - 100 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 53.1 - - 56.0 - - - Temp@2m DewPt@2m - - - - - - 42.3 - - 42.7 - - - DewPt@2m Temp@Bot - - - - - - 51.8 - - 54.9 - - - Temp@Bot DewPt@Bot - - - - - - 41.5 - - 42.0 - - - DewPt@bot Sfc.Heating - - - - - - 135 - - 81 - - - Sfc.Heating BL Depth - - - - - - 2781 - - 76 - - - BL Depth EXPERIMENT - - - - - - 100 - - 100 - - - EXPERIMENT EXPERIMENT2 - - - - - - 5 - - 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] 97397 34 264 34 265 97397 90001 30 251 29 259 90001 84305 24 239 22 247 84305 79589 15 240 16 234 79589 75534 8 240 10 236 75534 71947 6 249 6 247 71947 68694 7 269 5 262 68694 65708 5 263 9 279 65708 62957 11 302 15 291 62957 60293 19 292 18 297 60293 57489 18 275 18 279 57489 54557 14 294 19 277 54557 51756 25 276 24 275 51756 49240 25 267 21 273 49240 46985 27 279 22 284 46985 44939 33 280 30 282 44939 43074 35 282 32 282 43074 41371 34 274 32 282 41371 39810 30 265 30 279 39810 38367 23 277 25 276 38367 37020 22 288 20 293 37020 35729 21 294 19 307 35729 34421 21 296 21 315 34421 33061 22 294 24 323 33061 31651 22 285 25 328 31651 30175 21 295 23 333 30175 28620 19 323 22 332 28620 26987 19 335 22 333 26987 25275 14 327 21 332 25275 23483 14 321 21 330 23483 21612 17 346 24 327 21612 19655 20 342 27 329 19655 17607 26 343 25 344 17607 15509 34 356 24 355 15509 13482 30 003 22 356 13482 11633 21 013 17 353 11633 9988 14 013 15 350 9988 8531 16 353 16 356 8531 7243 20 353 19 011 7243 6106 20 014 16 023 6106 5114 16 026 12 025 5114 4249 13*023 12 025 4249 3486 13*023 12 026 3486 2802 12 022 12 026 2802 2198 12 022 11 026 2198 1693 11 021 11 026 1693 1306 10 021 10 026 1306 1039 10 020 10 026 1039 877 9 020 9*026 877 785 7 020 7*026 785 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