DrJack's BLIPSPOT for: SAT 04/18 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 - - - - - - 82.6 - - 85.5 - - - Temp@2m Sfc.Heating - - - - - - 290 - - 77 - - - Sfc.Heating BL Depth - - - - - - 5633 - - 78 - - - BL Depth Hcrit - - - - - - 4632 - - 770 - - - Hcrit BL Top - - - - - - 6342 - - 787 - - - BL Top Hgt.Variab. - - - - - - 2015 - - 9283 - - - Hgt.Variab. W* - - - - - - 485 - - 77 - - - W* B/S - - - - - - 5 - - 1 - - - B/S BL Wind - - - - - - 16 - - 10 - - - BL Wind Direction - - - - - - 181 - - 181 - - - Direction Wind Shear - - - - - - 11 - - 0 - - - Wind Shear Max.Converg - - - - - - -7 - - -3 - - - Max.Converg CLOUDpotent - - - - - - -1474 - - -8391 - - - CLOUDpotentl sfcLCL - - - - - - 7817 - - 9178 - - - sfcLCL ODpotential - - - - - - -5348 - - -9980 - - - ODpotential blCL - - - - - - 11690 - - 10767 - - - blCL maxRH - - - - - - 79 - - 66 - - - maxRH CAPE - - - - - - 0 - - 0 - - - CAPE Temp@2m - - - - - - 82.6 - - 85.5 - - - Temp@2m DewPt@2m - - - - - - 50.9 - - 47.8 - - - DewPt@2m Temp@Bot - - - - - - 80.7 - - 84.7 - - - Temp@Bot DewPt@Bot - - - - - - 50.0 - - 46.8 - - - DewPt@bot Sfc.Heating - - - - - - 290 - - 77 - - - Sfc.Heating BL Depth - - - - - - 5633 - - 78 - - - BL Depth EXPERIMENT - - - - - - 17 - - 0 - - - EXPERIMENT EXPERIMENT2 - - - - - - 7 - - 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] 97075 32 242 25 253 97075 89768 24 231 33 246 89768 84161 10 222 29 238 84161 79546 9 264 16 247 79546 75587 9 274 13 272 75587 72089 10 289 12 262 72089 68922 10 277 14 283 68922 65995 21 278 18 290 65995 63256 19 271 18 272 63256 60578 32 276 21 259 60578 57777 40 270 38 275 57777 54902 45 272 48 275 54902 52185 49 269 45 275 52185 49732 49 266 55 264 49732 47538 48 260 63 254 47538 45568 43 264 53 257 45568 43773 43 271 46 265 43773 42117 44 268 48 270 42117 40580 41 258 45 271 40580 39143 36 260 39 270 39143 37786 33 260 39 269 37786 36470 38 250 41 272 36470 35126 43 234 47 268 35126 33725 37 229 50 263 33725 32269 35 238 43 263 32269 30746 35 246 38 247 30746 29145 34 249 39 247 29145 27465 33 252 39 251 27465 25706 33 256 36 251 25706 23869 36 259 37 256 23869 21959 34 255 41 260 21959 19971 29 255 42 256 19971 17903 28 254 34 244 17903 15800 26 251 33 240 15800 13773 24 254 35 246 13773 11925 21 251 31 246 11925 10284 19 237 24 226 10284 8828 21 224 23 205 8828 7531 20*211 22 202 7531 6375 18*201 22 199 6375 5348 18 193 21 195 5348 4441 17 185 21 192 4441 3638 17 177 20 189 3638 2917 17 174 20 187 2917 2280 17 173 19 186 2280 1747 16 171 18 185 1747 1338 15 170 17 184 1338 1056 15 169 16 183 1056 885 13 169 14*182 885 787 10 169 10*181 787 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