DrJack's BLIPSPOT for: TUE 04/21 Freeport_IL 856ft pt37813@42.185,-89.594,836ft BLIPSPOT sfc.temp. adjusted by +0.1 degF SPONSORED BY: ChicagoLand Glider Council RUC - Last Analysis,Validation Time = 09Z 21Z ----------------------------------- VALIDATION TIME --------------------------------------- 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z ------------------------------------------------------------------------------------------- Update Time - - - - - - 0700z - - 1002z - - - Update Time FCST PERIOD - - - - - - 12 hr - - 12 hr - - - FCST PERIOD Temp@2m - - - - - - 70.1 - - 75.8 - - - Temp@2m Sfc.Heating - - - - - - 255 - - 205 - - - Sfc.Heating BL Depth - - - - - - 3481 - - 5437 - - - BL Depth Hcrit - - - - - - 3061 - - 4444 - - - Hcrit BL Top - - - - - - 4337 - - 6293 - - - BL Top Hgt.Variab. - - - - - - 671 - - 934 - - - Hgt.Variab. W* - - - - - - 392 - - 425 - - - W* B/S - - - - - - 4 - - 4 - - - B/S BL Wind - - - - - - 19 - - 20 - - - BL Wind Direction - - - - - - 235 - - 246 - - - Direction Wind Shear - - - - - - 7 - - 9 - - - Wind Shear Max.Converg - - - - - - 4 - - -3 - - - Max.Converg CLOUDpotent - - - - - - -855 - - 139 - - - CLOUDpotentl sfcLCL - - - - - - 5192 - - 6155 - - - sfcLCL ODpotential - - - - - - -5297 - - -2554 - - - ODpotential blCL - - - - - - 9634 - - 8847 - - - blCL maxRH - - - - - - 84 - - 92 - - - maxRH CAPE - - - - - - 670 - - 450 - - - CAPE Temp@2m - - - - - - 70.1 - - 75.8 - - - Temp@2m DewPt@2m - - - - - - 50.4 - - 51.8 - - - DewPt@2m Temp@Bot - - - - - - 68.8 - - 74.6 - - - Temp@Bot DewPt@Bot - - - - - - 50.0 - - 51.4 - - - DewPt@bot Sfc.Heating - - - - - - 255 - - 205 - - - Sfc.Heating BL Depth - - - - - - 3481 - - 5437 - - - BL Depth EXPERIMENT - - - - - - 37 - - 67 - - - EXPERIMENT EXPERIMENT2 - - - - - - 8 - - 8 - - - 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] 97161 16 235 30 251 97161 89765 23 264 34 251 89765 84099 30 261 19 245 84099 79428 28 254 15 255 79428 75415 17 263 12 262 75415 71860 16 256 15 274 71860 68633 15 275 14 280 68633 65666 17 288 20 288 65666 62919 15 293 22 265 62919 60248 26 306 22 297 60248 57452 33 291 30 291 57452 54553 31 290 28 283 54553 51778 31 296 28 293 51778 49270 30 297 34 298 49270 47022 33 302 42 299 47022 44996 41 301 42 297 44996 43157 43 299 40 302 43157 41477 41 297 38 303 41477 39932 39 296 36 300 39932 38500 39 293 37 304 38500 37160 39 292 42 309 37160 35866 40 292 44 306 35866 34548 40 293 43 305 34548 33178 40 293 41 304 33178 31757 41 291 40 304 31757 30272 39 290 38 306 30272 28710 38 291 37 305 28710 27072 40 292 36 303 27072 25357 42 291 35 304 25357 23565 40 288 33 302 23565 21702 38 282 32 299 21702 19763 41 271 31 293 19763 17748 44 262 34 278 17748 15693 47 262 38 273 15693 13708 47 261 34 272 13708 11894 44 259 30 270 11894 10273 44 253 29 273 10273 8828 44 245 30 278 8828 7542 43 239 30 273 7542 6403 36 236 24*253 6403 5395 26 244 23*250 5395 4505 22*245 22 248 4505 3717 21*237 21 247 3717 3010 20 236 21 246 3010 2384 20 235 20 245 2384 1862 20 234 19 244 1862 1460 19 234 19 243 1460 1183 18 233 18 243 1183 1015 16 233 17 243 1015 918 14 233 14 243 918 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