DrJack's BLIPSPOT for: SUN 04/12 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 - - - - - - 70.3 - - 73.8 - - - Temp@2m Sfc.Heating - - - - - - 260 - - 113 - - - Sfc.Heating BL Depth - - - - - - 3440 - - 3008 - - - BL Depth Hcrit - - - - - - 2891 - - 2173 - - - Hcrit BL Top - - - - - - 4149 - - 3717 - - - BL Top Hgt.Variab. - - - - - - 999 - - 2086 - - - Hgt.Variab. W* - - - - - - 393 - - 288 - - - W* B/S - - - - - - 5 - - 3 - - - B/S BL Wind - - - - - - 15 - - 18 - - - BL Wind Direction - - - - - - 173 - - 170 - - - Direction Wind Shear - - - - - - 7 - - 9 - - - Wind Shear Max.Converg - - - - - - -5 - - -7 - - - Max.Converg CLOUDpotent - - - - - - -2530 - - -2684 - - - CLOUDpotentl sfcLCL - - - - - - 6679 - - 6402 - - - sfcLCL ODpotential - - - - - - -6619 - - -5394 - - - ODpotential blCL - - - - - - 10768 - - 9111 - - - blCL maxRH - - - - - - 90 - - 72 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 70.3 - - 73.8 - - - Temp@2m DewPt@2m - - - - - - 44.2 - - 48.8 - - - DewPt@2m Temp@Bot - - - - - - 68.6 - - 72.7 - - - Temp@Bot DewPt@Bot - - - - - - 43.3 - - 48.2 - - - DewPt@bot Sfc.Heating - - - - - - 260 - - 113 - - - Sfc.Heating BL Depth - - - - - - 3440 - - 3008 - - - BL Depth EXPERIMENT - - - - - - 59 - - 0 - - - EXPERIMENT EXPERIMENT2 - - - - - - 6 - - 7 - - - 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] 96882 42 250 48 258 96882 89598 23 266 37 252 89598 83967 25 285 41 264 83967 79347 30 260 41 267 79347 75409 30 261 27 259 75409 71903 36 274 30 275 71903 68715 36 281 39 277 68715 65793 42 286 42 278 65793 63081 49 280 43 282 63081 60438 49 276 46 286 60438 57669 47 279 51 283 57669 54806 51 286 55 285 54806 52089 60 293 60 288 52089 49639 64 292 58 287 49639 47444 58 288 56 293 47444 45467 56 301 60 296 45467 43684 70 303 74 318 43684 42064 77 310 92 320 42064 40562 96 319 88 314 40562 39147 90 319 84 311 39147 37802 74 312 83 315 37802 36492 68 307 73 316 36492 35153 62 307 58 305 35153 33758 54 301 54 298 33758 32308 51 301 53 296 32308 30786 43 298 51 293 30786 29181 43 286 49 288 29181 27494 36 281 46 284 27494 25728 29 279 42 279 25728 23885 32 281 36 279 23885 21967 32 281 33 283 21967 19968 32 281 33 280 19968 17882 29 277 30 271 17882 15758 22 264 26 260 15758 13720 20 248 24 248 13720 11869 16 249 23 240 11869 10224 15 258 22 239 10224 8760 16 260 22 244 8760 7457 18 257 21 242 7457 6300 19 247 20 229 6300 5278 17 223 17 203 5278 4379 15*188 19*182 4379 3587 16*180 19*177 3587 2877 16 176 19 173 2877 2250 16 173 19 169 2250 1727 16 171 18 168 1727 1326 15 170 18 166 1326 1050 14 169 17 165 1050 882 13 168 15 164 882 786 10 168 11 163 786 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