DrJack's BLIPSPOT for: WED 04/16 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 - - - 49.9 - - 53.9 - - 55.8 - - 49.0 Temp@2m Sfc.Heating - - - 322 - - 295 - - 197 - - -31 Sfc.Heating BL Depth - - - 4862 - - 6208 - - 5951 - - 75 BL Depth Hcrit - - - 4064 - - 5073 - - 4657 - - 768 Hcrit BL Top - - - 5571 - - 6917 - - 6660 - - 784 BL Top Hgt.Variab. - - - 1635 - - 2966 - - 3546 - - 4607 Hgt.Variab. W* - - - 473 - - 498 - - 430 - - 16 W* B/S - - - 4 - - 4 - - 3 - - 0 B/S BL Wind - - - 21 - - 22 - - 22 - - 7 BL Wind Direction - - - 293 - - 292 - - 294 - - 328 Direction Wind Shear - - - 10 - - 12 - - 13 - - 0 Wind Shear Max.Converg - - - 6 - - 7 - - 8 - - 3 Max.Converg CLOUDpotent - - - -97 - - 123 - - -811 - - -4726 CLOUDpotentl sfcLCL - - - 5668 - - 6794 - - 7471 - - 5510 sfcLCL ODpotential - - - -1008 - - -215 - - -1275 - - -6426 ODpotential blCL - - - 6579 - - 7132 - - 7935 - - 7210 blCL maxRH - - - 78 - - 97 - - 78 - - 62 maxRH CAPE - - - 10 - - 40 - - 30 - - 0 CAPE Temp@2m - - - 49.9 - - 53.9 - - 55.8 - - 49.0 Temp@2m DewPt@2m - - - 27.6 - - 26.7 - - 25.6 - - 27.8 DewPt@2m Temp@Bot - - - 48.0 - - 52.3 - - 54.5 - - 49.7 Temp@Bot DewPt@Bot - - - 26.8 - - 25.8 - - 24.9 - - 27.6 DewPt@bot Sfc.Heating - - - 322 - - 295 - - 197 - - -31 Sfc.Heating BL Depth - - - 4862 - - 6208 - - 5951 - - 75 BL Depth EXPERIMENT - - - 13 - - 87 - - 12 - - 0 EXPERIMENT EXPERIMENT2 - - - 3 - - 3 - - 3 - - 3 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] 97325 8 098 4 160 6 253 9 310 97325 89936 13 062 9 117 7 330 10 016 89936 84259 5 023 13 068 4 081 6 015 84259 79559 2 223 3 346 6 051 6 082 79559 75511 10 038 4 031 5 300 5 000 75511 71913 11 299 5 016 4 313 7 302 71913 68640 19 245 13 223 12 222 13 231 68640 65621 13 255 13 309 7 129 17 159 65621 62787 38 271 38 281 30 301 26 290 62787 60039 43 247 47 263 52 276 42 282 60039 57201 25 243 37 240 45 267 40 285 57201 54250 20 255 26 251 42 280 45 289 54250 51424 46 289 43 282 50 283 56 283 51424 48882 54 292 46 290 54 279 60 283 48882 46607 57 286 50 288 54 278 60 284 46607 44542 57 281 56 282 56 281 62 285 44542 42650 56 281 58 276 61 283 65 283 42650 40910 58 284 56 276 67 283 68 281 40910 39309 63 287 58 284 73 284 69 282 39309 37829 73 288 70 291 79 288 74 286 37829 36456 84 286 84 294 87 293 81 288 36456 35143 89 283 95 295 96 296 86 291 35143 33816 87 281 100 295 104 297 95 295 33816 32446 86 283 99 296 108 298 101 295 32446 31031 84 286 97 297 109 299 100 297 31031 29550 84 288 96 298 109 300 99 299 29550 27994 84 290 96 299 104 299 98 300 27994 26362 86 292 95 299 94 298 94 300 26362 24654 88 293 92 297 87 297 84 299 24654 22874 91 293 87 297 82 297 76 299 22874 21028 89 293 85 298 78 296 70 299 21028 19108 75 292 82 298 74 298 65 299 19108 17105 52 287 73 297 70 300 62 299 17105 15059 37 284 58 294 61 300 57 301 15059 13091 34 291 45 293 51 299 50 301 13091 11314 39 296 41 296 42 296 41 301 11314 9747 42 299 34 295 32 286 36 298 9747 8360 42 300 27 289 27 282 33 288 8360 7129 35 298 25*290 26*283 30 278 7129 6034 25*293 24*290 25*286 28 277 6034 5065 23*292 23 291 24 289 26 282 5065 4210 22 292 23 292 23 293 24 292 4210 3455 22 293 22 292 23 295 23 305 3455 2778 21 293 22 293 22 297 22 313 2778 2181 21 293 21 293 22 298 22 318 2181 1682 20 294 20 294 21 299 21 322 1682 1299 19 294 19 295 20 299 19 325 1299 1035 18 294 18 295 19 300 16 327 1035 876 16 294 16 294 17 300 12 328 876 784 12 294 12 295 13 300 7*328 784 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