DrJack's BLIPSPOT for: SUN 12/21 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 - - - - - - 43.5 - - 40.6 - - - Temp@2m Sfc.Heating - - - - - - 185 - - 20 - - - Sfc.Heating BL Depth - - - - - - 2353 - - 75 - - - BL Depth Hcrit - - - - - - 1942 - - 767 - - - Hcrit BL Top - - - - - - 3062 - - 784 - - - BL Top Hgt.Variab. - - - - - - 1122 - - 3558 - - - Hgt.Variab. W* - - - - - - 306 - - 47 - - - W* B/S - - - - - - 2 - - 1 - - - B/S BL Wind - - - - - - 28 - - 11 - - - BL Wind Direction - - - - - - 301 - - 313 - - - Direction Wind Shear - - - - - - 17 - - 0 - - - Wind Shear Max.Converg - - - - - - 16 - - 3 - - - Max.Converg CLOUDpotent - - - - - - -3563 - - -5588 - - - CLOUDpotentl sfcLCL - - - - - - 6626 - - 6373 - - - sfcLCL ODpotential - - - - - - -13035 - - -13943 - - - ODpotential blCL - - - - - - 16097 - - 14727 - - - blCL maxRH - - - - - - 84 - - 48 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 43.5 - - 40.6 - - - Temp@2m DewPt@2m - - - - - - 17.5 - - 15.8 - - - DewPt@2m Temp@Bot - - - - - - 42.3 - - 40.2 - - - Temp@Bot DewPt@Bot - - - - - - 17.2 - - 15.6 - - - DewPt@bot Sfc.Heating - - - - - - 185 - - 20 - - - Sfc.Heating BL Depth - - - - - - 2353 - - 75 - - - BL Depth EXPERIMENT - - - - - - 34 - - 0 - - - EXPERIMENT EXPERIMENT2 - - - - - - 2 - - 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] 96033 46 241 48 244 96033 88970 22 246 31 242 88970 83552 23 226 25 227 83552 79018 31 241 25 235 79018 75083 27 239 24 232 75083 71568 22 221 24 232 71568 68356 22 230 26 237 68356 65395 24 244 25 238 65395 62653 37 267 32 263 62653 60014 44 256 39 257 60014 57264 45 248 38 256 57264 54381 55 252 43 260 54381 51593 78 250 61 258 51593 49068 84 244 76 253 49068 46801 81 245 80 251 46801 44739 85 255 81 255 44739 42848 101 258 86 261 42848 41109 117 253 103 259 41109 39507 128 247 122 249 39507 38018 125 243 114 241 38018 36621 125 243 101 245 36621 35283 135 242 111 252 35283 33943 131 241 131 248 33943 32565 119 242 136 244 32565 31142 114 243 126 243 31142 29657 111 244 119 243 29657 28094 110 244 115 245 28094 26455 110 243 110 248 26455 24739 108 244 105 249 24739 22949 101 248 99 251 22949 21089 94 254 90 253 21089 19152 88 259 81 256 19152 17132 79 261 73 260 17132 15073 70 260 66 264 15073 13091 61 257 59 265 13091 11295 57 258 53 271 11295 9704 54 265 50 282 9704 8297 53 274 47 294 8297 7053 51 284 47 306 7053 5954 50 293 47 312 5954 4988 49 299 44 311 4988 4142 43 300 37 309 4142 3400 32*299 29 309 3400 2737 31*300 27 310 2737 2151 30 301 26 311 2151 1663 29 301 24 312 1663 1288 27 301 22 312 1288 1030 25 302 19 313 1030 873 21 302 16*313 873 784 15 302 11*313 784 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