DrJack's BLIPSPOT for: SUN 04/27 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 - - - - - - 0659z - - 1002z - - 1334z Update Time FCST PERIOD - - - - - - 12 hr - - 12 hr - - 12 hr FCST PERIOD Temp@2m - - - - - - 64.0 - - 65.8 - - 58.6 Temp@2m Sfc.Heating - - - - - - 432 - - 209 - - -28 Sfc.Heating BL Depth - - - - - - 4153 - - 4694 - - 76 BL Depth Hcrit - - - - - - 3621 - - 3734 - - 768 Hcrit BL Top - - - - - - 4862 - - 5403 - - 785 BL Top Hgt.Variab. - - - - - - 960 - - 1445 - - 3852 Hgt.Variab. W* - - - - - - 494 - - 405 - - 14 W* B/S - - - - - - 3 - - 3 - - 1 B/S BL Wind - - - - - - 26 - - 21 - - 5 BL Wind Direction - - - - - - 328 - - 320 - - 322 Direction Wind Shear - - - - - - 13 - - 10 - - 0 Wind Shear Max.Converg - - - - - - 10 - - 7 - - 2 Max.Converg CLOUDpotent - - - - - - -4593 - - -3881 - - -5730 CLOUDpotentl sfcLCL - - - - - - 9456 - - 9285 - - 6515 sfcLCL ODpotential - - - - - - -11580 - - -11080 - - -12260 ODpotential blCL - - - - - - 16442 - - 16483 - - 13045 blCL maxRH - - - - - - 57 - - 68 - - 44 maxRH CAPE - - - - - - 0 - - 0 - - 0 CAPE Temp@2m - - - - - - 64.0 - - 65.8 - - 58.6 Temp@2m DewPt@2m - - - - - - 25.3 - - 27.8 - - 33.3 DewPt@2m Temp@Bot - - - - - - 61.8 - - 64.4 - - 60.1 Temp@Bot DewPt@Bot - - - - - - 24.3 - - 26.9 - - 32.9 DewPt@bot Sfc.Heating - - - - - - 432 - - 209 - - -28 Sfc.Heating BL Depth - - - - - - 4153 - - 4694 - - 76 BL Depth EXPERIMENT - - - - - - 0 - - 0 - - 0 EXPERIMENT EXPERIMENT2 - - - - - - 2 - - 3 - - 4 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] 97668 13 196 14 211 13 266 97668 90300 10 186 4 245 6 298 90300 84630 5 178 4 287 6 340 84630 79921 7 105 8 199 7 258 79921 75852 7 007 5 271 4 249 75852 72245 6 131 3 250 5 266 72245 68989 11 323 12 004 14 356 68989 66013 16 275 17 295 18 305 66013 63253 8 249 16 233 20 292 63253 60550 20 285 18 287 26 289 60550 57712 35 296 37 298 34 299 57712 54771 38 283 43 288 39 299 54771 51970 34 269 39 281 38 294 51970 49454 38 281 37 282 42 292 49454 47209 43 280 42 284 47 293 47209 45185 46 286 48 286 53 291 45185 43344 55 292 56 286 55 291 43344 41660 69 291 64 286 61 291 41660 40111 79 284 70 286 67 286 40111 38675 84 281 74 287 66 286 38675 37331 86 280 76 289 66 290 37331 36035 86 279 76 288 67 291 36035 34712 84 278 74 288 66 292 34712 33331 79 280 72 290 65 293 33331 31897 75 285 67 294 60 295 31897 30395 74 288 68 297 58 297 30395 28816 76 290 69 294 57 300 28816 27157 75 297 64 293 54 300 27157 25417 68 299 61 300 52 299 25417 23596 63 303 57 300 48 308 23596 21697 59 308 50 296 41 304 21697 19716 51 309 49 296 41 300 19716 17650 42 307 47 305 41 302 17650 15546 37 310 39 313 36 309 15546 13523 34 313 34 320 32 318 13523 11682 32 315 31 322 29 319 11682 10045 31 322 28 330 25 319 10045 8593 31 333 28 346 21 327 8593 7307 34 343 28 349 19 350 7307 6173 36 346 22*332 21 359 6173 5173 29*335 22*321 20 348 5173 4295 28*330 22 320 21 335 4295 3521 27 329 22 320 21 332 3521 2828 27 328 22 320 21 331 2828 2215 26 328 21 319 21 330 2215 1704 26 327 21 319 20 329 1704 1312 25 327 20 319 17 328 1312 1042 23 327 19 319 14 326 1042 878 20 327 17 319 10*325 878 785 15 327 12 319 5*322 785 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