DrJack's BLIPSPOT for: THU 04/30 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 - - - - - - 0659z - - 1002z - - 1331z Update Time FCST PERIOD - - - - - - 12 hr - - 12 hr - - 12 hr FCST PERIOD Temp@2m - - - - - - 60.0 - - 57.6 - - 50.7 Temp@2m Sfc.Heating - - - - - - 246 - - 195 - - -26 Sfc.Heating BL Depth - - - - - - 5654 - - 3374 - - 76 BL Depth Hcrit - - - - - - 4575 - - 2723 - - 768 Hcrit BL Top - - - - - - 6363 - - 4083 - - 785 BL Top Hgt.Variab. - - - - - - 2394 - - 4405 - - 4700 Hgt.Variab. W* - - - - - - 462 - - 356 - - 19 W* B/S - - - - - - 5 - - 3 - - 0 B/S BL Wind - - - - - - 18 - - 22 - - 8 BL Wind Direction - - - - - - 281 - - 306 - - 312 Direction Wind Shear - - - - - - 9 - - 10 - - 0 Wind Shear Max.Converg - - - - - - 5 - - 8 - - 2 Max.Converg CLOUDpotent - - - - - - 632 - - -861 - - -2885 CLOUDpotentl sfcLCL - - - - - - 5731 - - 4944 - - 3670 sfcLCL ODpotential - - - - - - -160 - - -1726 - - -3954 ODpotential blCL - - - - - - 6523 - - 5809 - - 4739 blCL maxRH - - - - - - 90 - - 85 - - 73 maxRH CAPE - - - - - - 60 - - 40 - - 0 CAPE Temp@2m - - - - - - 60.0 - - 57.6 - - 50.7 Temp@2m DewPt@2m - - - - - - 37.4 - - 38.6 - - 37.5 DewPt@2m Temp@Bot - - - - - - 58.4 - - 56.2 - - 51.2 Temp@Bot DewPt@Bot - - - - - - 36.2 - - 37.9 - - 37.2 DewPt@bot Sfc.Heating - - - - - - 246 - - 195 - - -26 Sfc.Heating BL Depth - - - - - - 5654 - - 3374 - - 76 BL Depth EXPERIMENT - - - - - - 59 - - 38 - - 0 EXPERIMENT EXPERIMENT2 - - - - - - 4 - - 5 - - 5 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] 97386 21 251 21 276 22 291 97386 89997 18 256 18 248 17 287 89997 84356 9 223 9 233 11 260 84356 79682 2 154 4 274 6 221 79682 75654 1 145 1 241 4 178 75654 72088 5 267 4 134 5 170 72088 68855 7 208 4 218 4 284 68855 65877 4 223 11 186 9 246 65877 63103 14 239 7 192 6 235 63103 60395 11 176 10 194 12 241 60395 57549 13 252 16 242 18 234 57549 54571 20 253 21 263 21 261 54571 51716 38 256 38 255 38 262 51716 49157 44 242 42 244 38 254 49157 46869 37 249 40 256 39 261 46869 44790 55 263 51 260 51 263 44790 42884 65 252 58 255 61 261 42884 41123 59 244 61 249 65 259 41123 39489 58 246 60 247 65 259 39489 37973 57 252 61 253 68 261 37973 36568 62 257 65 255 73 264 36568 35229 66 256 65 254 76 266 35229 33882 67 253 64 255 74 266 33882 32497 68 252 61 257 69 266 32497 31076 70 252 60 257 70 268 31076 29600 71 250 61 257 75 267 29600 28054 69 248 64 258 77 266 28054 26430 66 250 66 260 73 265 26430 24726 63 252 66 259 67 263 24726 22945 58 249 65 257 61 260 22945 21096 56 244 61 255 57 256 21096 19174 57 244 55 253 52 257 19174 17169 55 245 48 252 45 262 17169 15122 47 248 41 250 39 268 15122 13150 37 254 34 256 32 274 13150 11363 31 261 30 272 27 278 11363 9783 28 266 26 275 28 277 9783 8386 20 273 24 272 31 274 8386 7147 20*276 24 275 33 279 7147 6049 20*278 23 281 32 288 6049 5077 19 280 22 290 30 295 5077 4221 19 280 22*296 28 300 4221 3464 19 282 23*303 25 306 3464 2786 19 282 23 305 24 309 2786 2187 18 283 23 306 22 310 2187 1686 18 283 23 307 21 311 1686 1302 17 284 22 307 18 312 1302 1037 16 284 21 308 15 312 1037 876 14 284 18 308 12*312 876 785 11 284 13 308 8*312 785 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