DrJack's BLIPSPOT for: FRI 03/20 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 - - - - - - 69.0 - - 70.9 - - - Temp@2m Sfc.Heating - - - - - - 175 - - -13 - - - Sfc.Heating BL Depth - - - - - - 3885 - - 77 - - - BL Depth Hcrit - - - - - - 3067 - - 769 - - - Hcrit BL Top - - - - - - 4594 - - 786 - - - BL Top Hgt.Variab. - - - - - - 3152 - - 9353 - - - Hgt.Variab. W* - - - - - - 365 - - 31 - - - W* B/S - - - - - - 3 - - 1 - - - B/S BL Wind - - - - - - 19 - - 9 - - - BL Wind Direction - - - - - - 215 - - 215 - - - Direction Wind Shear - - - - - - 13 - - 0 - - - Wind Shear Max.Converg - - - - - - 5 - - -2 - - - Max.Converg CLOUDpotent - - - - - - -3398 - - -7438 - - - CLOUDpotentl sfcLCL - - - - - - 7992 - - 8224 - - - sfcLCL ODpotential - - - - - - -5966 - - -8186 - - - ODpotential blCL - - - - - - 10560 - - 8972 - - - blCL maxRH - - - - - - 86 - - 94 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 69.0 - - 70.9 - - - Temp@2m DewPt@2m - - - - - - 36.6 - - 37.5 - - - DewPt@2m Temp@Bot - - - - - - 67.8 - - 71.3 - - - Temp@Bot DewPt@Bot - - - - - - 35.6 - - 36.7 - - - DewPt@bot Sfc.Heating - - - - - - 175 - - -13 - - - Sfc.Heating BL Depth - - - - - - 3885 - - 77 - - - BL Depth EXPERIMENT - - - - - - 43 - - 75 - - - EXPERIMENT EXPERIMENT2 - - - - - - 4 - - 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] 96476 21 236 16 246 96476 89345 9 202 15 234 89345 83852 3 129 7 239 83852 79283 3 109 3 215 79283 75331 4 336 5 054 75331 71810 13 304 12 341 71810 68597 10 277 12 286 68597 65634 11 335 10 285 65634 62874 20 310 18 291 62874 60184 34 293 22 304 60184 57343 34 280 31 308 57343 54372 26 280 39 305 54372 51540 31 305 42 297 51540 49007 40 296 37 284 49007 46745 35 294 27 297 46745 44688 40 315 34 317 44688 42799 51 309 40 310 42799 41059 48 299 51 306 41059 39472 42 297 63 308 39472 38026 44 314 71 307 38026 36689 64 319 71 304 36689 35402 74 317 69 304 35402 34095 74 314 67 304 34095 32739 71 307 63 304 32739 31340 69 304 59 303 31340 29881 67 303 56 302 29881 28344 62 302 53 301 28344 26727 58 301 50 300 26727 25029 50 299 48 299 25029 23253 39 293 48 299 23253 21402 31 284 50 301 21402 19471 24 274 53 299 19471 17457 27 267 58 285 17457 15405 31 260 58 272 15405 13428 33 256 52 265 13428 11629 34 258 46 259 11629 10033 33 263 40 255 10033 8614 32 260 35 251 8614 7352 30 251 30 243 7352 6227 27 241 27 237 6227 5227 24*231 25 233 5227 4344 23*225 24 230 4344 3562 21 218 22 226 3562 2860 20 214 21 224 2860 2239 19 212 20 221 2239 1721 18 211 19 219 1721 1322 17 210 17 217 1322 1048 16 209 15 216 1048 881 14 209 13*216 881 786 11 209 9*215 786 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