DrJack's BLIPSPOT for: MON 04/20 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 = 12Z 0Z ----------------------------------- VALIDATION TIME --------------------------------------- 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z ------------------------------------------------------------------------------------------- Update Time - - - 0653z - - 0955z - - 1000z - - 1333z Update Time FCST PERIOD - - - 9 hr - - 9 hr - - 12 hr - - 12 hr FCST PERIOD Temp@2m - - - 47.1 - - 48.8 - - 48.1 - - 42.7 Temp@2m Sfc.Heating - - - 184 - - 250 - - 119 - - -21 Sfc.Heating BL Depth - - - 4415 - - 5733 - - 5922 - - 75 BL Depth Hcrit - - - 3469 - - 4619 - - 4297 - - 767 Hcrit BL Top - - - 5124 - - 6442 - - 6631 - - 784 BL Top Hgt.Variab. - - - 4714 - - 4880 - - 3610 - - 6691 Hgt.Variab. W* - - - 383 - - 459 - - 364 - - 16 W* B/S - - - 4 - - 5 - - 3 - - 1 B/S BL Wind - - - 17 - - 18 - - 20 - - 5 BL Wind Direction - - - 297 - - 313 - - 312 - - 326 Direction Wind Shear - - - 8 - - 8 - - 9 - - 0 Wind Shear Max.Converg - - - 6 - - 10 - - 9 - - 2 Max.Converg CLOUDpotent - - - 33 - - 162 - - -743 - - -5123 CLOUDpotentl sfcLCL - - - 5092 - - 6281 - - 7374 - - 5907 sfcLCL ODpotential - - - -827 - - -368 - - -1421 - - -5998 ODpotential blCL - - - 5951 - - 6810 - - 8052 - - 6782 blCL maxRH - - - 97 - - 100 - - 100 - - 64 maxRH CAPE - - - 90 - - 80 - - 20 - - 0 CAPE Temp@2m - - - 47.1 - - 48.8 - - 48.1 - - 42.7 Temp@2m DewPt@2m - - - 27.8 - - 24.1 - - 18.4 - - 19.9 DewPt@2m Temp@Bot - - - 45.8 - - 47.3 - - 47.1 - - 43.6 Temp@Bot DewPt@Bot - - - 26.6 - - 23.1 - - 17.7 - - 19.3 DewPt@bot Sfc.Heating - - - 184 - - 250 - - 119 - - -21 Sfc.Heating BL Depth - - - 4415 - - 5733 - - 5922 - - 75 BL Depth EXPERIMENT - - - 87 - - 101 - - 100 - - 0 EXPERIMENT EXPERIMENT2 - - - 3 - - 2 - - 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] 97393 20 217 25 226 25 248 24 262 97393 90024 23 230 31 236 30 253 32 263 90024 84427 14 265 20 246 29 259 29 261 84427 79798 20 278 6 282 16 255 22 261 79798 75767 17 265 9 271 8 224 12 259 75767 72150 6 202 10 199 9 215 10 239 72150 68838 5 173 12 178 13 236 15 240 68838 65783 18 217 14 195 18 227 25 231 65783 62962 20 228 16 212 18 219 19 228 62962 60227 32 254 27 256 17 274 18 279 60227 57372 35 260 42 269 39 268 38 267 57372 54419 44 261 44 256 34 265 31 274 54419 51586 43 250 33 261 47 281 39 285 51586 49025 41 254 50 278 57 270 44 279 49025 46721 47 261 58 272 47 257 42 276 46721 44621 56 263 55 261 40 263 42 283 44621 42694 61 262 46 251 47 282 49 292 42694 40919 60 258 39 262 53 287 56 294 40919 39280 54 256 46 277 57 285 58 294 39280 37759 50 263 55 280 58 283 57 298 37759 36342 55 272 61 277 56 287 58 309 36342 34982 64 275 65 273 56 294 69 315 34982 33613 77 271 64 268 61 298 82 314 33613 32216 88 262 62 267 63 299 85 315 32216 30795 90 252 60 269 62 302 86 318 30795 29326 84 247 60 270 63 306 84 320 29326 27792 78 252 61 273 66 311 83 325 27792 26185 78 262 61 275 68 313 84 328 26185 24504 83 269 61 276 68 313 80 326 24504 22747 83 272 60 276 64 310 77 322 22747 20915 80 274 58 277 59 306 73 321 20915 19002 75 273 56 276 54 304 70 319 19002 17001 69 270 52 276 51 304 66 317 17001 14961 58 273 47 278 46 301 61 317 14961 12999 44 281 37 280 39 296 51 317 12999 11225 29 283 22 279 26 285 44 314 11225 9658 21 281 22 282 19 282 37 308 9658 8278 20 282 21 287 19 284 28 301 8278 7059 20 283 19*295 20*292 23 300 7059 5977 19*285 19*305 21*305 21 305 5977 5018 18*293 19 308 21 307 21 307 5018 4173 18 296 19 311 21 310 19 312 4173 3425 17 297 19 314 21 312 18 316 3425 2756 17 298 18 315 21 314 17 319 2756 2164 17 298 18 317 21 315 17 322 2164 1671 16 299 18 317 20 315 15 324 1671 1293 16 299 17 318 19 316 14 326 1293 1032 15 300 16 318 18 316 11 326 1032 874 13 299 15 319 16 316 9*327 874 784 10 299 11 319 12 317 5*326 784 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