DrJack's BLIPSPOT for: THU 08/20 Truckee 7208ft pt35874@39.407,-120.306 SPONSORED BY: Harry Fox RUC - Last Analysis,Validation Time = 15Z 3Z ----------------------------------- VALIDATION TIME --------------------------------------- 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z 1Z 2Z 3Z ------------------------------------------------------------------------------------------- Update Time - - - - - - 0959z - - - - - 1601z Update Time FCST PERIOD - - - - - - 12 hr - - - - - 12 hr FCST PERIOD Temp@2m - - - - - - 75.9 - - - - - 64.0 Temp@2m Sfc.Heating - - - - - - 355 - - - - - -21 Sfc.Heating BL Depth - - - - - - 4389 - - - - - 16 BL Depth Hcrit - - - - - - 10291 - - - - - 7207 Hcrit BL Top - - - - - - 11597 - - - - - 7224 BL Top Hgt.Variab. - - - - - - 2326 - - - - - 1150 Hgt.Variab. W* - - - - - - 497 - - - - - 8 W* B/S - - - - - - 6 - - - - - 0 B/S BL Wind - - - - - - 15 - - - - - 5 BL Wind Direction - - - - - - 230 - - - - - 243 Direction Wind Shear - - - - - - 7 - - - - - 0 Wind Shear Max.Converg - - - - - - -32 - - - - - -11 Max.Converg CLOUDpotent - - - - - - -5024 - - - - - -6182 CLOUDpotentl sfcLCL - - - - - - 16621 - - - - - 13406 sfcLCL ODpotential - - - - - - -9408 - - - - - -12357 ODpotential blCL - - - - - - 21005 - - - - - 19581 blCL maxRH - - - - - - 94 - - - - - 70 maxRH CAPE - - - - - - 0 - - - - - 0 CAPE Temp@2m - - - - - - 75.9 - - - - - 64.0 Temp@2m DewPt@2m - - - - - - 28.1 - - - - - 31.0 DewPt@2m Temp@Bot - - - - - - 74.0 - - - - - 65.5 Temp@Bot DewPt@Bot - - - - - - 27.4 - - - - - 30.7 DewPt@bot Sfc.Heating - - - - - - 355 - - - - - -21 Sfc.Heating BL Depth - - - - - - 4389 - - - - - 16 BL Depth EXPERIMENT - - - - - - 75 - - - - - 0 EXPERIMENT EXPERIMENT2 - - - - - - 4 - - - - - 5 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] 99315 18 099 23 114 99315 91839 20 118 14 111 91839 86070 13 116 14 125 86070 81270 11 127 13 099 81270 77132 14 124 10 093 77132 73479 11 131 18 103 73479 70173 14 145 15 075 70173 67150 13 135 7 044 67150 64368 12 144 5 115 64368 61697 11 133 8 198 61697 58912 9 164 8 155 58912 56017 28 201 23 232 56017 53276 29 209 36 217 53276 50832 34 228 36 206 50832 48644 44 233 38 213 48644 46659 53 227 46 219 46659 44845 55 221 54 222 44845 43174 53 218 58 227 43174 41616 50 218 54 229 41616 40150 48 223 52 229 40150 38772 47 229 51 227 38772 37452 46 231 50 226 37452 36133 46 230 50 226 36133 34785 45 227 50 226 34785 33416 44 227 49 226 33416 32014 44 231 46 224 32014 30571 44 231 42 220 30571 29092 42 231 40 217 29092 27579 36 227 39 215 27579 26037 33 221 39 214 26037 24471 31 215 39 212 24471 22875 31 212 38 210 22875 21243 32 214 34 209 21243 19600 29 216 29 204 19600 18029 26 217 26 193 18029 16600 23 212 25 184 16600 15321 22 206 23 181 15321 14167 22 200 21 185 14167 13123 20 200 20 194 13123 12174 17*208 20 204 12174 11314 15*217 20 213 11314 10539 15 223 21 219 10539 9838 16 229 23 222 9838 9197 16 232 23 224 9197 8619 16 234 21 227 8619 8129 16 236 17 235 8129 7747 16 237 14 242 7747 7481 15 237 11 245 7481 7318 13 237 9*244 7318 7224 10 238 5*243 7224 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