DrJack's BLIPSPOT for: WED 04/29 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 - - - 62.9 - - 67.3 - - 64.3 - - 60.6 Temp@2m Sfc.Heating - - - 218 - - 140 - - 21 - - 0 Sfc.Heating BL Depth - - - 1289 - - 2118 - - 76 - - 76 BL Depth Hcrit - - - 1268 - - 1665 - - 769 - - 769 Hcrit BL Top - - - 1998 - - 2827 - - 785 - - 785 BL Top Hgt.Variab. - - - 747 - - 1009 - - 2974 - - 1630 Hgt.Variab. W* - - - 268 - - 274 - - 52 - - 14 W* B/S - - - 4 - - 4 - - 1 - - 1 B/S BL Wind - - - 13 - - 11 - - 8 - - 3 BL Wind Direction - - - 148 - - 160 - - 158 - - 177 Direction Wind Shear - - - 5 - - 5 - - 0 - - 0 Wind Shear Max.Converg - - - -6 - - -4 - - -3 - - -2 Max.Converg CLOUDpotent - - - -385 - - -304 - - -868 - - 0 CLOUDpotentl sfcLCL - - - 2384 - - 3131 - - 1653 - - 785 sfcLCL ODpotential - - - -3508 - - -2299 - - -1240 - - -453 ODpotential blCL - - - 5506 - - 5126 - - 2025 - - 1238 blCL maxRH - - - 93 - - 100 - - 94 - - 100 maxRH CAPE - - - 140 - - 180 - - 360 - - 640 CAPE Temp@2m - - - 62.9 - - 67.3 - - 64.3 - - 60.6 Temp@2m DewPt@2m - - - 55.0 - - 56.0 - - 59.4 - - 59.4 DewPt@2m Temp@Bot - - - 61.2 - - 66.0 - - 63.8 - - 60.3 Temp@Bot DewPt@Bot - - - 54.4 - - 55.5 - - 58.9 - - 59.3 DewPt@bot Sfc.Heating - - - 218 - - 140 - - 21 - - 0 Sfc.Heating BL Depth - - - 1289 - - 2118 - - 76 - - 76 BL Depth EXPERIMENT - - - 73 - - 101 - - 78 - - 101 EXPERIMENT EXPERIMENT2 - - - 9 - - 10 - - 11 - - 11 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] 97514 19 255 18 256 27 264 37 287 97514 90112 15 259 17 266 20 263 22 288 90112 84460 4 288 11 254 18 260 17 285 84460 79775 6 297 7 267 3 296 8 287 79775 75736 4 280 5 264 1 065 4 005 75736 72178 1 144 3 245 4 319 3 293 72178 68956 4 020 0 014 9 311 4 260 68956 65986 8 337 2 348 8 303 4 290 65986 63231 11 283 2 323 6 284 5 300 63231 60555 7 267 5 232 9 245 12 273 60555 57744 12 281 14 219 16 234 19 248 57744 54788 23 255 21 241 12 259 16 263 54788 51940 36 268 51 259 50 262 43 271 51940 49381 53 254 56 244 49 246 57 263 49381 47100 52 232 44 240 44 253 58 257 47100 45041 36 250 48 264 55 255 57 254 45041 43169 47 267 70 256 65 251 64 258 43169 41460 77 260 73 248 71 246 69 255 41460 39888 87 255 77 248 73 248 69 251 39888 38427 88 255 84 250 81 250 68 252 38427 37056 89 255 90 248 92 247 71 257 37056 35734 90 256 90 246 94 245 78 258 35734 34396 92 257 91 248 90 245 81 258 34396 33011 92 258 92 251 78 248 81 260 33011 31583 86 258 90 254 64 246 79 263 31583 30096 79 260 81 257 59 242 74 266 30096 28535 70 262 63 255 60 245 63 267 28535 26900 62 264 50 244 57 249 55 265 26900 25191 52 270 45 231 49 251 51 256 25191 23410 49 264 42 241 45 256 47 250 23410 21555 51 260 40 254 38 259 44 251 21555 19618 33 252 36 261 35 250 44 254 19618 17592 27 273 33 268 39 248 44 253 17592 15523 35 259 27 250 42 256 44 251 15523 13527 26 219 24 231 37 254 38 255 13527 11707 18 222 24 210 30 239 35 257 11707 10089 15 241 24 196 31 224 32 256 10089 8649 11 236 22 192 35 213 27 251 8649 7367 10 230 21 199 32 206 23 247 7367 6227 8 225 22 215 28 199 21 244 6227 5217 7 226 19 226 25 192 20 240 5217 4328 7 221 16 226 23 183 18 236 4328 3543 8 197 14 211 22 175 17 227 3543 2843 13 170 12*173 21 171 15 217 2843 2225 15*159 12*165 20 169 14 208 2225 1710 14*151 12 161 18 165 11 194 1710 1316 14 148 11 159 16 163 9 188 1316 1044 13 147 11 158 14 161 7 181 1044 880 12 146 10 157 12 160 5 179 880 785 9 145 7 156 8*158 3*177 785 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