DrJack's BLIPSPOT for: FRI 04/24 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 - - - - - - 81.4 - - 77.7 - - - Temp@2m Sfc.Heating - - - - - - 199 - - 34 - - - Sfc.Heating BL Depth - - - - - - 8490 - - 77 - - - BL Depth Hcrit - - - - - - 6661 - - 770 - - - Hcrit BL Top - - - - - - 9199 - - 786 - - - BL Top Hgt.Variab. - - - - - - 4540 - - 12043 - - - Hgt.Variab. W* - - - - - - 494 - - 60 - - - W* B/S - - - - - - 7 - - 2 - - - B/S BL Wind - - - - - - 13 - - 5 - - - BL Wind Direction - - - - - - 296 - - 032 - - - Direction Wind Shear - - - - - - 7 - - 0 - - - Wind Shear Max.Converg - - - - - - 9 - - 1 - - - Max.Converg CLOUDpotent - - - - - - 235 - - -5059 - - - CLOUDpotentl sfcLCL - - - - - - 8964 - - 5845 - - - sfcLCL ODpotential - - - - - - -594 - - -5913 - - - ODpotential blCL - - - - - - 9793 - - 6699 - - - blCL maxRH - - - - - - 93 - - 79 - - - maxRH CAPE - - - - - - 200 - - 780 - - - CAPE Temp@2m - - - - - - 81.4 - - 77.7 - - - Temp@2m DewPt@2m - - - - - - 44.4 - - 54.6 - - - DewPt@2m Temp@Bot - - - - - - 79.8 - - 77.1 - - - Temp@Bot DewPt@Bot - - - - - - 43.4 - - 53.8 - - - DewPt@bot Sfc.Heating - - - - - - 199 - - 34 - - - Sfc.Heating BL Depth - - - - - - 8490 - - 77 - - - BL Depth EXPERIMENT - - - - - - 71 - - 16 - - - EXPERIMENT EXPERIMENT2 - - - - - - 6 - - 9 - - - 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] 97480 33 253 41 252 97480 90091 33 248 34 250 90091 84390 23 241 23 232 84390 79648 14 240 12 231 79648 75574 12 218 9 248 75574 71970 7 186 9 245 71970 68694 3 000 6 254 68694 65681 7 342 3 283 65681 62891 8 316 10 335 62891 60196 15 307 12 329 60196 57385 19 307 16 324 57385 54465 20 308 20 306 54465 51687 21 310 22 300 51687 49200 23 307 25 299 49200 46988 25 309 27 296 46988 45003 34 317 28 309 45003 43216 47 317 41 313 43216 41590 49 303 45 305 41590 40080 48 301 43 298 40080 38661 43 301 41 297 38661 37318 39 301 39 299 37318 36013 34 315 37 303 36013 34681 35 322 36 303 34681 33293 35 325 36 302 33293 31852 36 326 35 307 31852 30344 36 321 34 315 30344 28758 34 304 33 319 28758 27092 31 292 31 313 27092 25348 29 295 26 308 25348 23531 31 297 22 308 23531 21643 32 292 22 310 21643 19677 29 289 26 309 19677 17633 26 282 28 295 17633 15567 24 280 27 277 15567 13590 17 289 23 272 13590 11789 15 293 21 273 11789 10180 15*293 18 276 10180 8744 15*293 16 280 8744 7461 14 293 14 284 7461 6317 14 293 12 288 6317 5301 14 295 10 295 5301 4403 13 297 7 307 4403 3608 13 298 5 333 3608 2895 13 299 4 008 2895 2264 12 300 5 025 2264 1737 12 301 6 030 1737 1332 11 302 6 031 1332 1053 11 302 6 032 1053 883 10 302 6 032 883 786 8 302 5*032 786 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