DrJack's BLIPSPOT for: THU 04/18 Truckee 7206ft pt35874@39.407,-120.306 SPONSORED BY: Harry Fox RUC - Last Analysis,Validation Time = 18Z 3Z ----------------------------------- VALIDATION TIME --------------------------------------- 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z 1Z 2Z 3Z ------------------------------------------------------------------------------------------- Update Time 0737z - - 0953z - - 1002z - - 1554z - - 1855z Update Time FCST PERIOD 9 hr - - 9 hr - - 12 hr - - 9 hr - - 9 hr FCST PERIOD Temp@2m 30.7 - - 44.5 - - 48.0 - - 46.2 - - 36.4 Temp@2m Sfc.Heating -8 - - 47 - - 64 - - 16 - - -28 Sfc.Heating BL Depth 16 - - 912 - - 2210 - - 2132 - - 16 BL Depth Hcrit 7206 - - 7206 - - 7917 - - 7206 - - 7206 Hcrit BL Top 7222 - - 8118 - - 9417 - - 9339 - - 7223 BL Top Hgt.Variab. 76 - - 1305 - - 1346 - - 1052 - - 643 Hgt.Variab. W* 10 - - 163 - - 241 - - 158 - - 0 W* B/S 1 - - 5 - - 4 - - 2 - - 0 B/S BL Wind 3 - - 6 - - 11 - - 13 - - 4 BL Wind Direction 238 - - 212 - - 250 - - 256 - - 262 Direction Wind Shear 0 - - 5 - - 6 - - 8 - - 0 Wind Shear Max.Converg -15 - - -10 - - -21 - - -30 - - -12 Max.Converg CLOUDpotent -2549 - - -1586 - - 901 - - 2023 - - 1 CLOUDpotentl sfcLCL 9772 - - 9705 - - 8516 - - 7317 - - 7223 sfcLCL ODpotential -12359 - - -7301 - - -3309 - - -1817 - - -3815 ODpotential blCL 19581 - - 15419 - - 12726 - - 11156 - - 11038 blCL maxRH 46 - - 56 - - 68 - - 79 - - 90 maxRH CAPE 0 - - 0 - - 0 - - 10 - - 0 CAPE Temp@2m 30.7 - - 44.5 - - 48.0 - - 46.2 - - 36.4 Temp@2m DewPt@2m 13.8 - - 27.2 - - 35.7 - - 38.9 - - 35.5 DewPt@2m Temp@Bot 35.3 - - 44.2 - - 47.5 - - 46.1 - - 40.2 Temp@Bot DewPt@Bot 12.8 - - 26.1 - - 34.4 - - 37.9 - - 38.1 DewPt@bot Sfc.Heating -8 - - 47 - - 64 - - 16 - - -28 Sfc.Heating BL Depth 16 - - 912 - - 2210 - - 2132 - - 16 BL Depth EXPERIMENT 0 - - 0 - - 0 - - 15 - - 60 EXPERIMENT EXPERIMENT2 2 - - 4 - - 5 - - 6 - - 6 EXPERIMENT2 PROFILES OF WIND SPEED [kt] AND DIRECTION [degTrue] ----------------------------------- VALIDATION TIME --------------------------------------- Height 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z 1Z 2Z 3Z [ft] ------------------------------------------------------------------------------------------- [ft] 97643 18 280 13 286 13 272 13 270 19 277 97643 90302 8 231 5 246 11 283 8 278 5 303 90302 84651 3 257 3 161 5 271 2 259 4 068 84651 79951 3 210 3 209 3 256 7 278 7 009 79951 75902 4 033 3 311 3 269 6 281 8 356 75902 72330 8 324 4 310 6 269 7 288 9 331 72330 69101 10 322 4 290 8 273 9 302 10 315 69101 66136 17 316 11 303 12 288 12 305 12 304 66136 63379 19 298 15 294 18 291 16 310 13 302 63379 60691 21 291 21 292 23 288 19 292 18 297 60691 57869 24 287 26 287 30 290 26 293 23 286 57869 54924 37 279 32 278 31 280 31 282 30 276 54924 52101 44 274 39 275 38 271 35 277 36 276 52101 49555 48 273 46 271 49 265 44 273 40 277 49555 47275 51 274 51 271 49 264 47 268 40 274 47275 45219 53 275 50 272 45 268 41 266 39 263 45219 43361 51 276 47 271 44 262 38 269 35 260 43361 41679 50 275 45 269 42 259 40 261 36 265 41679 40133 47 272 44 269 39 264 35 256 33 259 40133 38694 41 269 43 266 39 266 34 265 27 265 38694 37352 35 274 40 264 35 259 32 263 27 268 37352 36080 34 278 34 269 31 256 32 261 29 266 36080 34813 35 281 34 274 28 260 31 263 27 267 34813 33521 36 284 34 275 27 266 29 260 27 269 33521 32209 37 287 34 281 26 273 27 259 26 270 32209 30866 36 290 32 286 25 277 26 263 26 268 30866 29483 33 288 31 284 25 278 24 266 28 273 29483 28064 31 290 31 283 25 283 22 265 27 271 28064 26613 30 292 31 285 24 289 20 271 22 270 26613 25135 28 290 29 288 24 291 20 279 20 279 25135 23635 27 290 27 288 23 288 20 284 19 284 23635 22109 27 295 25 288 21 288 19 289 16 284 22109 20551 28 301 24 289 20 292 17 298 13 287 20551 18986 27 303 23 289 20 296 16 309 12 296 18986 17489 25 300 23 290 20 297 16 312 12 301 17489 16130 22 297 21 292 19 295 15 310 13 304 16130 14914 19 294 19 293 18 293 14 308 13 306 14914 13820 17 293 17 291 17 290 13 307 12 307 13820 12830 14 295 15 285 16 285 12 304 11 310 12830 11932 12 297 14 276 16 278 12 297 11 312 11932 11117 11 292 13 268 15 270 12 280 10 310 11117 10382 11 279 12 264 14 261 13 262 10 300 10382 9716 11 261 12 262 13*253 14*257 10 286 9716 9106 11 243 11 251 12*251 15*256 12 272 9106 8556 11 217 10*232 12 250 14 256 13 263 8556 8088 10 193 8*221 11 250 14 256 13 261 8088 7723 9 170 6 211 11 250 13 256 13 263 7723 7469 8 165 5 208 10 249 12 257 11 264 7469 7313 6*172 5 207 9 249 10 257 9*264 7313 7223 3*238 4 207 6 248 6 256 4*262 7223 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 21Z - heights for other times differ slightly Results neglect thermals created by small-scale features not resolved by the smoothed model topography