DrJack's BLIPSPOT for: FRI 04/17 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 - - - - - - 0953z - - 1001z - - 1334z Update Time FCST PERIOD - - - - - - 9 hr - - 12 hr - - 12 hr FCST PERIOD Temp@2m - - - - - - 77.4 - - 78.0 - - 70.9 Temp@2m Sfc.Heating - - - - - - 324 - - 162 - - -15 Sfc.Heating BL Depth - - - - - - 5864 - - 5638 - - 77 BL Depth Hcrit - - - - - - 4857 - - 4319 - - 769 Hcrit BL Top - - - - - - 6573 - - 6347 - - 786 BL Top Hgt.Variab. - - - - - - 2324 - - 2887 - - 4803 Hgt.Variab. W* - - - - - - 507 - - 400 - - 13 W* B/S - - - - - - 8 - - 6 - - 1 B/S BL Wind - - - - - - 12 - - 11 - - 4 BL Wind Direction - - - - - - 327 - - 321 - - 023 Direction Wind Shear - - - - - - 6 - - 7 - - 0 Wind Shear Max.Converg - - - - - - 6 - - -5 - - 1 Max.Converg CLOUDpotent - - - - - - -53 - - -955 - - -4564 CLOUDpotentl sfcLCL - - - - - - 6627 - - 7302 - - 5350 sfcLCL ODpotential - - - - - - -381 - - -1666 - - -7159 ODpotential blCL - - - - - - 6954 - - 8013 - - 7945 blCL maxRH - - - - - - 88 - - 80 - - 68 maxRH CAPE - - - - - - 40 - - 20 - - 0 CAPE Temp@2m - - - - - - 77.4 - - 78.0 - - 70.9 Temp@2m DewPt@2m - - - - - - 50.9 - - 48.7 - - 50.4 DewPt@2m Temp@Bot - - - - - - 75.0 - - 76.6 - - 72.4 Temp@Bot DewPt@Bot - - - - - - 50.1 - - 47.9 - - 50.0 DewPt@bot Sfc.Heating - - - - - - 324 - - 162 - - -15 Sfc.Heating BL Depth - - - - - - 5864 - - 5638 - - 77 BL Depth EXPERIMENT - - - - - - 51 - - 22 - - 0 EXPERIMENT EXPERIMENT2 - - - - - - 7 - - 7 - - 8 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] 97061 31 234 32 247 35 262 97061 89809 26 238 27 252 23 262 89809 84269 19 236 23 248 21 277 84269 79693 13 239 17 250 14 275 79693 75730 16 272 17 267 13 280 75730 72204 16 265 21 267 21 272 72204 69000 9 233 16 258 16 275 69000 66048 16 270 13 239 22 266 66048 63316 22 249 23 266 17 253 63316 60642 35 264 27 260 30 281 60642 57831 43 246 44 270 41 271 57831 54924 40 247 52 267 42 269 54924 52153 46 261 47 273 44 273 52153 49672 48 269 45 274 47 276 49672 47461 43 271 43 275 45 279 47461 45461 39 273 42 282 47 285 45461 43635 36 281 46 288 50 286 43635 41965 40 292 45 290 48 285 41965 40430 45 296 43 299 42 290 40430 39003 43 295 47 309 42 300 39003 37657 38 296 54 311 48 303 37657 36350 35 296 56 309 52 301 36350 35016 35 298 54 308 53 301 35016 33623 34 302 51 308 50 307 33623 32175 32 301 49 309 44 309 32175 30656 32 298 48 308 39 312 30656 29058 35 294 41 307 36 314 29058 27384 38 294 36 307 35 315 27384 25634 38 300 35 305 33 316 25634 23810 38 306 37 301 30 319 23810 21911 37 309 35 302 27 318 21911 19929 32 314 31 308 25 314 19929 17859 29 317 24 319 23 314 17859 15746 26 311 21 332 20 324 15746 13707 21 300 21 327 18 331 13707 11849 17 287 21 307 19 329 11849 10201 16 294 20 289 19 316 10201 8742 15 307 15 282 18 293 8742 7450 13*310 14*288 16 276 7450 6302 13*314 12*299 13 280 6302 5285 13 319 12 311 11 297 5285 4388 12 324 12 318 10 327 4388 3595 12 328 12 323 10 344 3595 2884 12 330 12 326 10 355 2884 2256 12 333 11 329 11 003 2256 1731 12 334 11 330 11 009 1731 1328 11 336 11 332 11 013 1328 1050 11 336 10 333 10 017 1050 882 10 337 10 332 7*021 882 786 8 337 8 333 4*023 786 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