DrJack's BLIPSPOT for: THU 12/18 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 - - 1334z Update Time FCST PERIOD - - - - - - 12 hr - - 12 hr - - 12 hr FCST PERIOD Temp@2m - - - - - - 50.9 - - 48.9 - - 48.2 Temp@2m Sfc.Heating - - - - - - 75 - - -27 - - -38 Sfc.Heating BL Depth - - - - - - 75 - - 75 - - 75 BL Depth Hcrit - - - - - - 768 - - 768 - - 768 Hcrit BL Top - - - - - - 784 - - 784 - - 784 BL Top Hgt.Variab. - - - - - - 1386 - - 771 - - 347 Hgt.Variab. W* - - - - - - 73 - - 21 - - 15 W* B/S - - - - - - 2 - - 1 - - 0 B/S BL Wind - - - - - - 7 - - 7 - - 6 BL Wind Direction - - - - - - 147 - - 145 - - 139 Direction Wind Shear - - - - - - 0 - - 0 - - 0 Wind Shear Max.Converg - - - - - - -3 - - -3 - - -3 Max.Converg CLOUDpotent - - - - - - -5090 - - -3437 - - -2298 CLOUDpotentl sfcLCL - - - - - - 5874 - - 4221 - - 3082 sfcLCL ODpotential - - - - - - -13209 - - -11823 - - -8541 ODpotential blCL - - - - - - 13993 - - 12607 - - 9325 blCL maxRH - - - - - - 43 - - 82 - - 88 maxRH CAPE - - - - - - 0 - - 0 - - 30 CAPE Temp@2m - - - - - - 50.9 - - 48.9 - - 48.2 Temp@2m DewPt@2m - - - - - - 28.4 - - 33.6 - - 37.8 DewPt@2m Temp@Bot - - - - - - 50.0 - - 49.7 - - 49.8 Temp@Bot DewPt@Bot - - - - - - 27.6 - - 33.0 - - 37.4 DewPt@bot Sfc.Heating - - - - - - 75 - - -27 - - -38 Sfc.Heating BL Depth - - - - - - 75 - - 75 - - 75 BL Depth EXPERIMENT - - - - - - 0 - - 27 - - 52 EXPERIMENT EXPERIMENT2 - - - - - - 3 - - 4 - - 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] 96346 34 253 24 278 20 300 96346 89344 23 287 15 260 15 281 89344 83876 17 281 19 246 20 258 83876 79288 16 228 22 241 18 256 79288 75292 16 210 23 233 23 253 75292 71754 12 236 23 242 24 239 71754 68558 19 262 20 253 19 230 68558 65607 24 245 24 258 22 250 65607 62870 25 245 34 249 31 259 62870 60243 39 249 41 243 40 256 60243 57517 48 239 43 239 46 245 57517 54677 46 244 48 246 56 236 54677 51961 57 248 61 239 64 232 51961 49507 54 249 66 235 69 231 49507 47284 56 254 70 245 71 234 47284 45245 72 260 81 249 77 244 45245 43372 78 257 80 242 85 244 43372 41654 82 245 81 240 88 237 41654 40072 84 244 84 242 86 231 40072 38606 90 247 94 238 86 226 38606 37238 89 247 98 232 93 224 37238 35920 87 245 94 233 92 221 35920 34581 86 244 93 231 95 219 34581 33191 92 243 88 230 98 219 33191 31750 85 244 82 229 97 220 31750 30243 64 245 80 231 91 222 30243 28659 40 232 71 236 84 223 28659 26996 33 217 56 228 74 221 26996 25252 26 208 50 214 63 218 25252 23432 23 211 51 206 56 216 23432 21537 27 221 42 197 47 216 21537 19562 36 209 33 183 46 211 19562 17507 38 205 37 182 48 208 17507 15423 37 205 47 190 53 211 15423 13422 31 203 49 197 57 209 13422 11605 25 204 45 205 52 201 11605 9992 26 202 42 207 50 195 9992 8562 30 198 43 202 48 194 8562 7292 33 198 44 200 44 197 7292 6163 33 200 44 202 44 202 6163 5162 33 204 45 201 46 200 5162 4279 30 205 44 198 48 193 4279 3501 27 200 41 196 47 186 3501 2806 24 191 36 193 42 179 2806 2196 21 179 29 187 35 170 2196 1689 15 158 23 174 30 163 1689 1302 13 152 18 158 25 157 1302 1036 12 151 15 151 18 150 1036 876 10 149 12 149 13 146 876 784 7*147 7*145 6*139 784 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