DrJack's BLIPSPOT for: THU 04/09 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 - - - - - - 57.9 - - 63.4 - - - Temp@2m Sfc.Heating - - - - - - 349 - - 146 - - - Sfc.Heating BL Depth - - - - - - 2106 - - 2253 - - - BL Depth Hcrit - - - - - - 1992 - - 1779 - - - Hcrit BL Top - - - - - - 2815 - - 2962 - - - BL Top Hgt.Variab. - - - - - - 682 - - 1118 - - - Hgt.Variab. W* - - - - - - 367 - - 283 - - - W* B/S - - - - - - 6 - - 4 - - - B/S BL Wind - - - - - - 11 - - 12 - - - BL Wind Direction - - - - - - 159 - - 154 - - - Direction Wind Shear - - - - - - 4 - - 5 - - - Wind Shear Max.Converg - - - - - - -5 - - -7 - - - Max.Converg CLOUDpotent - - - - - - -3564 - - -6923 - - - CLOUDpotentl sfcLCL - - - - - - 6379 - - 9886 - - - sfcLCL ODpotential - - - - - - -9912 - - -13412 - - - ODpotential blCL - - - - - - 12727 - - 16374 - - - blCL maxRH - - - - - - 76 - - 74 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 57.9 - - 63.4 - - - Temp@2m DewPt@2m - - - - - - 33.2 - - 23.2 - - - DewPt@2m Temp@Bot - - - - - - 55.6 - - 62.0 - - - Temp@Bot DewPt@Bot - - - - - - 32.2 - - 22.2 - - - DewPt@bot Sfc.Heating - - - - - - 349 - - 146 - - - Sfc.Heating BL Depth - - - - - - 2106 - - 2253 - - - BL Depth EXPERIMENT - - - - - - 3 - - 0 - - - EXPERIMENT EXPERIMENT2 - - - - - - 4 - - 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] 97448 57 247 52 260 97448 89954 49 251 57 252 89954 84207 44 248 40 251 84207 79494 37 245 30 250 79494 75475 26 249 26 243 75475 71929 25 254 28 240 71929 68713 28 250 31 244 68713 65753 31 258 31 250 65753 62999 35 256 32 254 62999 60318 35 254 32 254 60318 57513 34 257 31 254 57513 54599 33 256 30 258 54599 51815 32 254 33 266 51815 49305 32 258 37 264 49305 47051 33 257 39 259 47051 45013 30 251 39 258 45013 43164 31 251 38 254 43164 41473 32 244 35 256 41473 39916 30 241 34 260 39916 38477 32 240 32 264 38477 37139 35 230 28 267 37139 35852 35 230 26 266 35852 34542 34 232 26 265 34542 33179 34 236 31 263 33179 31764 31 242 33 258 31764 30281 28 242 28 254 30281 28719 27 236 25 254 28719 27080 26 234 24 258 27080 25365 24 240 25 265 25365 23570 22 247 27 273 23570 21696 22 250 23 267 21696 19738 22 251 21 268 19738 17688 22 245 26 272 17688 15591 20 237 26 266 15591 13565 12 251 21 260 13565 11720 10 295 14 272 11720 10082 11 310 10 296 10082 8628 11 313 8 308 8628 7337 11 313 6 310 7337 6192 11 307 7 300 6192 5181 8 293 6 265 5181 4293 7 234 7 207 4293 3515 9*195 11*170 3515 2822 11*168 13*158 2822 2211 11 162 13 155 2211 1701 11 158 13 153 1701 1311 11 156 13 152 1311 1042 10 154 12 151 1042 879 10 153 11 150 879 785 8 152 8 150 785 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