DrJack's BLIPSPOT for: FRI 04/03 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 - - - - - - 81.0 - - 81.0 - - - Temp@2m Sfc.Heating - - - - - - 229 - - 38 - - - Sfc.Heating BL Depth - - - - - - 4867 - - 77 - - - BL Depth Hcrit - - - - - - 3931 - - 770 - - - Hcrit BL Top - - - - - - 5576 - - 786 - - - BL Top Hgt.Variab. - - - - - - 2878 - - 9211 - - - Hgt.Variab. W* - - - - - - 428 - - 63 - - - W* B/S - - - - - - 5 - - 2 - - - B/S BL Wind - - - - - - 15 - - 7 - - - BL Wind Direction - - - - - - 214 - - 220 - - - Direction Wind Shear - - - - - - 9 - - 0 - - - Wind Shear Max.Converg - - - - - - 4 - - -1 - - - Max.Converg CLOUDpotent - - - - - - -744 - - -5413 - - - CLOUDpotentl sfcLCL - - - - - - 6320 - - 6199 - - - sfcLCL ODpotential - - - - - - -1810 - - -6074 - - - ODpotential blCL - - - - - - 7386 - - 6860 - - - blCL maxRH - - - - - - 79 - - 95 - - - maxRH CAPE - - - - - - 200 - - 440 - - - CAPE Temp@2m - - - - - - 81.0 - - 81.0 - - - Temp@2m DewPt@2m - - - - - - 56.1 - - 56.7 - - - DewPt@2m Temp@Bot - - - - - - 79.3 - - 80.9 - - - Temp@Bot DewPt@Bot - - - - - - 55.2 - - 55.9 - - - DewPt@bot Sfc.Heating - - - - - - 229 - - 38 - - - Sfc.Heating BL Depth - - - - - - 4867 - - 77 - - - BL Depth EXPERIMENT - - - - - - 15 - - 78 - - - EXPERIMENT EXPERIMENT2 - - - - - - 9 - - 10 - - - 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] 96884 31 254 36 255 96884 89600 29 258 32 260 89600 83980 16 247 29 268 83980 79350 9 268 17 264 79350 75388 12 290 12 305 75388 71893 9 284 18 307 71893 68738 6 305 14 298 68738 65828 9 337 9 288 65828 63108 16 309 14 293 63108 60466 14 299 23 303 60466 57709 18 300 27 305 57709 54845 23 273 25 282 54845 52116 22 260 24 262 52116 49677 27 260 29 263 49677 47536 36 247 36 252 47536 45645 38 226 36 234 45645 43929 34 219 32 232 43929 42327 33 228 35 234 42327 40817 33 226 34 221 40817 39385 33 218 35 204 39385 38025 33 206 38 202 38025 36700 36 203 36 214 36700 35346 39 210 30 229 35346 33935 32 231 27 234 33935 32471 32 228 28 235 32471 30940 34 216 32 233 30940 29330 39 213 31 236 29330 27642 38 223 25 240 27642 25877 34 232 23 238 25877 24032 30 229 23 245 24032 22110 29 236 25 254 22110 20108 32 245 26 256 20108 18020 34 244 25 264 18020 15889 33 240 25 272 15889 13835 30 237 24 267 13835 11969 26 238 24 267 11969 10317 23 243 24 260 10317 8852 22 248 22 259 8852 7547 21 252 19 253 7547 6384 18*244 17 246 6384 5353 16*231 17 242 5353 4442 16 226 15 233 4442 3636 16 213 15 230 3636 2915 15 210 14 227 2915 2277 15 208 14 225 2277 1745 15 206 13 224 1745 1336 14 205 13 222 1336 1055 13 204 12 222 1055 884 12 204 10 221 884 786 9 203 7*220 786 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