DrJack's BLIPSPOT for: THU 02/19 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 - - - - - - 43.0 - - 43.3 - - - Temp@2m Sfc.Heating - - - - - - 23 - - 10 - - - Sfc.Heating BL Depth - - - - - - 75 - - 75 - - - BL Depth Hcrit - - - - - - 767 - - 768 - - - Hcrit BL Top - - - - - - 784 - - 784 - - - BL Top Hgt.Variab. - - - - - - 1040 - - 1452 - - - Hgt.Variab. W* - - - - - - 50 - - 38 - - - W* B/S - - - - - - 1 - - 1 - - - B/S BL Wind - - - - - - 7 - - 5 - - - BL Wind Direction - - - - - - 116 - - 069 - - - Direction Wind Shear - - - - - - 0 - - 0 - - - Wind Shear Max.Converg - - - - - - -3 - - 0 - - - Max.Converg CLOUDpotent - - - - - - -93 - - -5 - - - CLOUDpotentl sfcLCL - - - - - - 877 - - 789 - - - sfcLCL ODpotential - - - - - - -278 - - -233 - - - ODpotential blCL - - - - - - 1062 - - 1017 - - - blCL maxRH - - - - - - 100 - - 100 - - - maxRH CAPE - - - - - - 10 - - 70 - - - CAPE Temp@2m - - - - - - 43.0 - - 43.3 - - - Temp@2m DewPt@2m - - - - - - 42.0 - - 42.5 - - - DewPt@2m Temp@Bot - - - - - - 42.5 - - 42.8 - - - Temp@Bot DewPt@Bot - - - - - - 41.8 - - 42.3 - - - DewPt@bot Sfc.Heating - - - - - - 23 - - 10 - - - Sfc.Heating BL Depth - - - - - - 75 - - 75 - - - BL Depth EXPERIMENT - - - - - - 100 - - 101 - - - EXPERIMENT EXPERIMENT2 - - - - - - 6 - - 6 - - - 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] 96603 22 091 26 080 96603 89475 22 088 20 081 89475 83943 21 082 17 073 83943 79304 13 054 9 074 79304 75280 7 012 6 024 75280 71705 6 185 5 325 71705 68453 6 078 9 253 68453 65475 17 327 8 307 65475 62706 23 266 20 310 62706 60005 26 241 24 277 60005 57182 27 260 28 247 57182 54246 36 260 37 263 54246 51460 60 270 47 275 51460 48968 74 264 60 272 48968 46722 87 260 81 262 46722 44678 90 253 89 253 44678 42814 87 251 88 253 42814 41107 96 256 88 254 41107 39533 116 255 100 258 39533 38077 122 252 120 260 38077 36724 119 253 127 260 36724 35426 122 256 127 261 35426 34112 120 255 126 260 34112 32749 115 253 126 257 32749 31336 111 253 124 256 31336 29857 106 254 118 257 29857 28303 101 254 107 256 28303 26676 97 253 95 252 26676 24974 94 253 86 252 24974 23195 89 255 79 253 23195 21338 76 258 67 247 21338 19399 60 256 61 242 19399 17370 52 240 59 245 17370 15300 48 231 55 253 15300 13303 43 242 43 260 13303 11483 35 246 31 252 11483 9863 23 238 26 227 9863 8430 8 220 25 203 8430 7164 10 152 21 192 7164 6047 19 140 18 185 6047 5061 23 143 23 160 5061 4197 26 147 27 148 4197 3437 28 146 24 138 3437 2760 28 139 19 125 2760 2165 24 133 13 108 2165 1671 19 127 10 090 1671 1292 15 121 9 082 1292 1032 13 119 8 076 1032 874 11*117 6*073 874 784 7*116 5*069 784 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