DrJack's BLIPSPOT for: FRI 03/13 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 - - - - - - 46.6 - - 50.7 - - - Temp@2m Sfc.Heating - - - - - - 149 - - 40 - - - Sfc.Heating BL Depth - - - - - - 2705 - - 75 - - - BL Depth Hcrit - - - - - - 2146 - - 768 - - - Hcrit BL Top - - - - - - 3414 - - 784 - - - BL Top Hgt.Variab. - - - - - - 1419 - - 4010 - - - Hgt.Variab. W* - - - - - - 310 - - 63 - - - W* B/S - - - - - - 2 - - 1 - - - B/S BL Wind - - - - - - 32 - - 14 - - - BL Wind Direction - - - - - - 181 - - 187 - - - Direction Wind Shear - - - - - - 19 - - 0 - - - Wind Shear Max.Converg - - - - - - -11 - - -4 - - - Max.Converg CLOUDpotent - - - - - - -830 - - -2878 - - - CLOUDpotentl sfcLCL - - - - - - 4244 - - 3662 - - - sfcLCL ODpotential - - - - - - -7738 - - -4053 - - - ODpotential blCL - - - - - - 11152 - - 4837 - - - blCL maxRH - - - - - - 87 - - 73 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 46.6 - - 50.7 - - - Temp@2m DewPt@2m - - - - - - 30.7 - - 37.3 - - - DewPt@2m Temp@Bot - - - - - - 45.7 - - 50.3 - - - Temp@Bot DewPt@Bot - - - - - - 29.6 - - 36.3 - - - DewPt@bot Sfc.Heating - - - - - - 149 - - 40 - - - Sfc.Heating BL Depth - - - - - - 2705 - - 75 - - - BL Depth EXPERIMENT - - - - - - 48 - - 0 - - - EXPERIMENT EXPERIMENT2 - - - - - - 3 - - 5 - - - 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] 96170 23 244 10 230 96170 88993 10 247 14 243 88993 83461 17 256 18 231 83461 78875 16 226 17 235 78875 74909 12 245 13 236 74909 71378 19 231 18 241 71378 68154 20 239 23 255 68154 65184 31 243 34 257 65184 62442 31 242 33 244 62442 59781 31 243 28 237 59781 56970 40 276 30 264 56970 54021 68 251 47 264 54021 51188 74 245 67 263 51188 48636 80 262 84 254 48636 46378 92 258 90 247 46378 44367 100 248 84 246 44367 42543 89 244 85 251 42543 40864 75 252 97 253 40864 39296 85 269 106 249 39296 37823 109 272 105 246 37823 36437 114 273 101 253 36437 35112 121 272 114 263 35112 33790 123 269 128 266 33790 32432 115 267 127 263 32432 31027 111 268 122 261 31027 29558 112 268 118 259 29558 28013 114 268 114 257 28013 26393 111 267 111 257 26393 24696 106 267 110 259 24696 22925 98 266 110 261 22925 21081 90 262 107 259 21081 19158 89 257 105 257 19158 17152 84 255 102 257 17152 15110 78 253 92 258 15110 13145 77 246 85 256 13145 11359 73 237 81 255 11359 9774 67 237 77 253 9774 8370 62 239 71 248 8370 7128 57 233 63 240 7128 6029 51 220 52 230 6029 5059 43 207 43 220 5059 4205 37 192 42 210 4205 3451 36*185 38 203 3451 2777 36*184 36 200 2777 2180 35 182 33 196 2180 1682 33 180 30 193 1682 1299 31 179 27 191 1299 1036 28 178 24 190 1036 876 24 178 20 189 876 784 16 177 14*187 784 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