DrJack's BLIPSPOT for: TUE 07/28 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 - - - - - - 75.6 - - 74.2 - - - Temp@2m Sfc.Heating - - - - - - 66 - - 22 - - - Sfc.Heating BL Depth - - - - - - 77 - - 77 - - - BL Depth Hcrit - - - - - - 770 - - 770 - - - Hcrit BL Top - - - - - - 786 - - 786 - - - BL Top Hgt.Variab. - - - - - - 1988 - - 2376 - - - Hgt.Variab. W* - - - - - - 75 - - 53 - - - W* B/S - - - - - - 2 - - 2 - - - B/S BL Wind - - - - - - 6 - - 6 - - - BL Wind Direction - - - - - - 136 - - 175 - - - Direction Wind Shear - - - - - - 0 - - 0 - - - Wind Shear Max.Converg - - - - - - -2 - - -3 - - - Max.Converg CLOUDpotent - - - - - - -1282 - - -770 - - - CLOUDpotentl sfcLCL - - - - - - 2068 - - 1556 - - - sfcLCL ODpotential - - - - - - -3490 - - -1339 - - - ODpotential blCL - - - - - - 4276 - - 2125 - - - blCL maxRH - - - - - - 100 - - 99 - - - maxRH CAPE - - - - - - 1250 - - 1720 - - - CAPE Temp@2m - - - - - - 75.6 - - 74.2 - - - Temp@2m DewPt@2m - - - - - - 68.6 - - 69.3 - - - DewPt@2m Temp@Bot - - - - - - 74.8 - - 73.7 - - - Temp@Bot DewPt@Bot - - - - - - 67.7 - - 68.9 - - - DewPt@bot Sfc.Heating - - - - - - 66 - - 22 - - - Sfc.Heating BL Depth - - - - - - 77 - - 77 - - - BL Depth EXPERIMENT - - - - - - 99 - - 94 - - - EXPERIMENT EXPERIMENT2 - - - - - - 15 - - 16 - - - 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] 99426 42 092 36 088 99426 91926 33 089 36 081 91926 86142 29 079 30 080 86142 81347 30 086 25 089 81347 77216 28 082 23 092 77216 73558 20 082 19 079 73558 70243 13 087 11 066 70243 67204 11 084 6 088 67204 64382 11 064 6 094 64382 61658 9 349 7 355 61658 58827 8 268 15 315 58827 55896 5 265 19 284 55896 53102 15 312 23 311 53102 50587 39 295 44 296 50587 48328 45 281 41 289 48328 46269 39 298 43 303 46269 44379 53 307 50 305 44379 42635 56 303 56 303 42635 41018 50 303 57 297 41018 39509 48 305 55 292 39509 38093 49 304 56 290 38093 36729 47 301 56 287 36729 35348 42 298 55 283 35348 33919 39 293 52 279 33919 32445 39 292 50 277 32445 30906 40 294 48 276 30906 29291 40 293 46 278 29291 27598 41 294 42 277 27598 25827 39 294 39 278 25827 23984 34 293 41 282 23984 22072 37 292 43 286 22072 20083 41 288 40 287 20083 18010 39 286 36 283 18010 15894 34 279 32 280 15894 13849 30 274 27 277 13849 11986 26 278 25 270 11986 10329 25 274 26 265 10329 8854 26 265 25 263 8854 7541 28 252 25 262 7541 6373 28 236 25 260 6373 5337 24 220 24 249 5337 4423 21 202 24 224 4423 3618 20 188 24 207 3618 2900 18 176 21 203 2900 2267 16 163 17 200 2267 1738 13 151 13 187 1738 1333 11 142 12 182 1333 1053 10 139 10 179 1053 883 8 138 9 176 883 786 6*136 6*175 786 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