DrJack's BLIPSPOT for: WED 04/22 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 - - - - - - 73.6 - - 74.4 - - - Temp@2m Sfc.Heating - - - - - - 166 - - 63 - - - Sfc.Heating BL Depth - - - - - - 4871 - - 77 - - - BL Depth Hcrit - - - - - - 3777 - - 770 - - - Hcrit BL Top - - - - - - 5580 - - 786 - - - BL Top Hgt.Variab. - - - - - - 2675 - - 10173 - - - Hgt.Variab. W* - - - - - - 388 - - 73 - - - W* B/S - - - - - - 4 - - 1 - - - B/S BL Wind - - - - - - 17 - - 9 - - - BL Wind Direction - - - - - - 269 - - 295 - - - Direction Wind Shear - - - - - - 10 - - 0 - - - Wind Shear Max.Converg - - - - - - 18 - - 3 - - - Max.Converg CLOUDpotent - - - - - - -775 - - -5305 - - - CLOUDpotentl sfcLCL - - - - - - 6355 - - 6092 - - - sfcLCL ODpotential - - - - - - -1994 - - -5874 - - - ODpotential blCL - - - - - - 7574 - - 6660 - - - blCL maxRH - - - - - - 96 - - 65 - - - maxRH CAPE - - - - - - 220 - - 430 - - - CAPE Temp@2m - - - - - - 73.6 - - 74.4 - - - Temp@2m DewPt@2m - - - - - - 48.4 - - 50.4 - - - DewPt@2m Temp@Bot - - - - - - 72.4 - - 73.6 - - - Temp@Bot DewPt@Bot - - - - - - 47.4 - - 49.3 - - - DewPt@bot Sfc.Heating - - - - - - 166 - - 63 - - - Sfc.Heating BL Depth - - - - - - 4871 - - 77 - - - BL Depth EXPERIMENT - - - - - - 84 - - 0 - - - EXPERIMENT EXPERIMENT2 - - - - - - 7 - - 8 - - - 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] 97473 33 246 34 248 97473 90027 25 242 28 245 90027 84324 26 231 21 235 84324 79600 20 222 20 243 79600 75536 18 212 17 237 75536 71937 11 225 12 222 71937 68664 13 235 9 213 68664 65659 11 276 13 291 65659 62893 7 277 12 273 62893 60208 16 324 14 229 60208 57377 34 307 26 309 57377 54451 40 292 36 294 54451 51676 34 280 33 293 51676 49181 29 285 37 292 49181 46955 28 293 37 287 46955 44951 30 307 34 296 44951 43131 38 315 40 307 43131 41462 41 316 42 311 41462 39921 42 317 44 318 39921 38486 45 319 48 329 38486 37136 49 321 51 333 37136 35828 51 322 53 333 35828 34497 49 321 54 333 34497 33116 47 316 55 332 33116 31686 45 308 55 333 31686 30192 45 298 50 331 30192 28620 44 297 48 328 28620 26974 39 296 42 317 26974 25257 37 290 39 303 25257 23465 36 291 39 297 23465 21596 35 291 38 297 21596 19645 33 291 35 300 19645 17611 33 292 32 298 17611 15536 34 293 27 293 15536 13542 34 296 23 293 13542 11733 29 297 21 299 11733 10127 25 287 21 304 10127 8695 25 281 21 304 8695 7418 24 277 20 302 7418 6280 20*270 19 300 6280 5269 19*269 19 298 5269 4376 19 269 18 297 4376 3587 18 269 18 297 3587 2879 17 269 17 296 2879 2252 17 268 17 296 2252 1729 16 269 16 296 1729 1327 15 268 15 295 1327 1050 14 268 14 295 1050 882 13 268 12*294 882 786 10 268 9*295 786 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