DrJack's BLIPSPOT for: THU 05/28 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 - - - - - - 72.9 - - 72.0 - - - Temp@2m Sfc.Heating - - - - - - 118 - - 24 - - - Sfc.Heating BL Depth - - - - - - 5576 - - 77 - - - BL Depth Hcrit - - - - - - 4211 - - 769 - - - Hcrit BL Top - - - - - - 6285 - - 786 - - - BL Top Hgt.Variab. - - - - - - 1483 - - 7339 - - - Hgt.Variab. W* - - - - - - 386 - - 64 - - - W* B/S - - - - - - 3 - - 1 - - - B/S BL Wind - - - - - - 22 - - 10 - - - BL Wind Direction - - - - - - 328 - - 326 - - - Direction Wind Shear - - - - - - 12 - - 0 - - - Wind Shear Max.Converg - - - - - - 8 - - 4 - - - Max.Converg CLOUDpotent - - - - - - 702 - - -4560 - - - CLOUDpotentl sfcLCL - - - - - - 5583 - - 5346 - - - sfcLCL ODpotential - - - - - - -4133 - - -4873 - - - ODpotential blCL - - - - - - 10418 - - 5659 - - - blCL maxRH - - - - - - 71 - - 78 - - - maxRH CAPE - - - - - - 20 - - 40 - - - CAPE Temp@2m - - - - - - 72.9 - - 72.0 - - - Temp@2m DewPt@2m - - - - - - 51.2 - - 51.4 - - - DewPt@2m Temp@Bot - - - - - - 72.0 - - 71.6 - - - Temp@Bot DewPt@Bot - - - - - - 49.9 - - 50.1 - - - DewPt@bot Sfc.Heating - - - - - - 118 - - 24 - - - Sfc.Heating BL Depth - - - - - - 5576 - - 77 - - - BL Depth EXPERIMENT - - - - - - 0 - - 10 - - - EXPERIMENT EXPERIMENT2 - - - - - - 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] 98249 5 117 15 037 98249 90858 7 078 10 046 90858 85186 14 052 9 052 85186 80474 13 048 14 053 80474 76383 13 043 15 040 76383 72753 8 017 12 012 72753 69478 9 014 6 357 69478 66474 11 339 11 325 66474 63688 8 282 14 321 63688 60983 18 306 28 306 60983 58171 25 294 29 295 58171 55256 25 284 32 282 55256 52467 32 297 39 289 52467 49967 56 301 59 294 49967 47747 74 287 69 289 47747 45741 87 279 77 285 45741 43907 93 280 85 283 43907 42217 99 282 94 283 42217 40644 106 284 103 285 40644 39169 113 286 111 287 39169 37773 117 286 113 287 37773 36421 116 286 108 287 36421 35047 108 284 101 289 35047 33623 101 280 97 290 33623 32152 89 282 90 292 32152 30623 76 287 80 296 30623 29023 69 298 76 299 29023 27346 74 298 72 303 27346 25588 75 299 69 307 25588 23751 68 305 66 315 23751 21836 59 305 61 317 21836 19841 53 301 54 313 19841 17767 49 300 48 311 17767 15657 46 304 43 313 15657 13625 44 308 40 317 13625 11777 42 311 39 322 11777 10134 38 313 37 323 10134 8684 34 314 29 321 8684 7403 28*320 24 323 7403 6267 24*325 23 324 6267 5258 23 326 22 324 5258 4367 23 327 22 325 4367 3579 22 328 21 326 3579 2873 22 329 21 326 2873 2248 21 329 20 326 2248 1726 20 330 19 327 1726 1325 19 330 18 327 1325 1049 18 330 17 327 1049 882 16 330 15*326 882 786 12 330 10*326 786 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