AVERAGE BASED ON 26 DAYS DrJack's BLIP for: APR 2002 AVENAL 2573ft pt30752@36.268,-120.696 (at ridge) ---------------------------- VALIDATION TIME ---------------------------------------------- 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z 1Z 2Z 3Z ------------------------------------------------------------------------------------------- Temp@2m 51.6 57.0 62.2 65.0 43.8 71.9 74.7 76.5 74.0 73.8 74.9 70.2 64.2 Temp@2m Temp@Bot 51.3 55.9 60.0 62.7 66.2 69.6 70.8 74.0 74.5 72.8 74.7 71.8 64.2 Temp@Bot Sfc.Heating 30 157 303 409 474 512 538 459 370 269 115 8 -16 Sfc.Heating BLDepth 197 1152 2439 3425 4018 4753 5642 5670 5897 5965 5157 1481 397 BLDepth Hcrit 794 1125 2250 3100 3497 4208 4966 4924 4918 4927 3739 1022 794 Hcrit BLTop 990 1946 3233 4219 4811 5547 6436 6463 6690 6758 5951 2275 1190 BLTop Hgt.Variab. 1710 2282 1978 1997 2225 2478 2567 3100 3481 3185 3890 5839 4417 Hgt.Variab. W* 64 219 356 443 480 531 579 548 513 466 321 87 23 W* B/S 2 6 55 23 113 73 55 14 159 47 159 167 0 B/S BLWind 6.6 6.2 5.0 4.4 4.6 6.3 6.3 6.4 7.0 10.6 11.3 9.4 11.1 BLWind Direction 275 302 323 320 304 308 312 311 308 303 311 306 285 Direction Max.Converg Max.Converg maxRH 65 67 66 65 66 63 60 52 55 55 51 37 40 maxRH CLOUDpotent -8324 -6810 -6324 -5915 -4852 -4412 -3832 -4958 -4840 -4811 -5819 -9860 -9707 CLOUDpotent sfcLCL 9317 8759 9559 10136 9748 9960 10270 11423 11532 11572 11771 12136 10900 sfcLCL ODpotential -8370 -7069 -7073 -6544 -5726 -5260 -5367 -5840 -5558 -5768 -6153 -9923 -9726 ODpotential blCL 9362 9017 10308 10765 10622 10809 11804 12305 12250 12529 12105 12199 10918 blCL PROFILES OF WIND SPEED [kt] AND DIRECTION [deg] ---------------------------- VALIDATION TIME ---------------------------------------------- Height 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z 1Z 2Z 3Z [ft] ------------------------------------------------------------------------------------------- [ft] 30061 34 264 33 262 34 265 38 262 35 254 31 259 38 264 32 276 32 280 38 269 34 282 37 285 40 274 30061 27285 33 263 30 264 31 264 35 262 32 254 27 260 35 264 29 276 29 281 35 268 30 280 31 281 36 273 27285 25288 31 263 27 265 28 264 32 260 29 254 26 261 33 265 27 276 27 283 32 269 27 277 30 277 34 274 25288 23349 29 262 24 264 26 264 29 260 27 254 24 259 31 264 26 278 25 286 30 272 24 282 27 280 31 277 23349 21416 27 260 22 262 24 264 26 261 24 255 21 258 29 265 24 280 22 288 27 274 21 288 25 283 28 278 21416 19611 25 258 21 262 21 263 24 261 21 255 19 257 26 265 21 280 19 286 24 275 19 293 23 288 26 278 19611 17879 22 259 18 262 19 265 22 261 19 254 18 258 23 266 18 282 17 284 22 271 16 291 20 288 23 278 17879 16207 19 260 15 261 15 265 19 264 15 256 15 259 20 268 15 279 16 280 20 271 14 284 17 280 20 278 16207 14336 18 265 14 264 14 265 17 271 14 260 12 264 18 270 14 280 14 282 17 271 11 280 15 276 19 277 14336 12889 16 270 13 270 13 271 15 276 12 268 11 269 16 276 12 285 12 285 15 273 10 280 13 278 17 276 12889 11673 14 274 11 275 12 275 14 282 10 275 10 272 15 280 10 288 11 291 14 277 9 284 12 279 14 276 11673 10628 13 280 10 278 10 278 13 287 9 283 8 281 12 286 9 292 9 295 12 283 8 285 10 276 12 280 10628 9780 12 284 8 286 8 283 11 290 8 287 8 291 11 292 7 294 8 294 10 287 7 295 9 279 10 285 9780 9028 11 287 7 298 7 290 8 295 7 288 7 294 10 297 6 294 7 296 9 291 8 304 8 293 8 291 9028 8313 9 293 6 304 6 300 7 299 6 294 6 302 9 299 6 290 7 290 9 294 7 304 8 298 7 300 8313 7595 7 299 5 307 6 306 6 305 6 302 6 305 8 297 5 291 6 292 8 298 7 315 7 308 6 313 7595 6747 6 301 5 309 5 311 5 308 5 305 6 313 7 298 5 297 6 291 7 299 9 318 8 322 6 331 6747 6021 5 308 4 312 5 320 4 317 5 306 5 308 7 299 5 296 6 288 8 298 10 317 10 323 8 334 6021 5536 4 314 4 317 5 326 4 323 5 305 6 302 7 299 6 295 7 289 9 300 12 316 11 324 9 337 5536 5066 4 322 3 322 5 329 4 324 5 302 6 304 7 299 6 297 7 292 10 303 12 316 12 324 10 337 5066 4602 4 334 3 329 4 329 4 325 5 300 6 305 7 301 7 302 7 298 10 305 12 317 12 325 12 336 4602 4145 4 345 4 337 4 329 5 324 5 304 7 307 7 306 7 304 7 303 10 306 13 317 13 325 13 332 4145 3693 5 351 4 340 5 330 5 324 5 307 7 310 6 311 6 309 7 307 10 306 13 316 13 323 13 327 3693 3246 6 352 5 342 5 332 5 323 5 310 6 314 6 317 6 316 7 310 11 305 13 315 13 320 14 321 3246 2805 7 351 6 339 6 333 5 325 4 310 6 314 5 325 5 324 6 312 11 305 13 313 13 317 15 314 2805 2369 8 348 6 334 6 329 4 325 4 312 5 317 4 335 5 332 6 316 10 304 13 311 14 314 16 307 2369 1937 8 341 6 327 5 326 4 328 3 320 5 321 4 343 5 338 5 321 10 304 12 309 13 311 17 300 1937 1511 7 326 5 310 4 323 4 335 3 325 4 325 4 351 4 343 5 325 10 304 12 308 13 308 17 295 1511 1229 7 300 6 297 4 325 3 338 3 331 4 329 4 357 4 346 5 327 9 305 11 308 12 307 15 293 1229 1019 8 281 5 293 4 327 3 342 3 336 4 331 4 0 4 352 4 329 9 305 10 308 10 307 13 291 1019 880 8 273 5 293 3 328 3 347 2 339 3 334 3 1 4 353 4 329 8 305 9 307 9 305 12 290 880 810 5 271 4 294 3 335 3 350 2 346 3 342 3 7 3 359 3 334 7 307 8 308 7 305 9 287 810 PROFILES OF RELATIVE HUMIDITY [%] ---------------------------- VALIDATION TIME ---------------------------------------------- Height 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z 1Z 2Z 3Z [ft] ------------------------------------------------------------------------------------------- [ft] 30061 21 24 22 22 23 24 21 27 19 21 18 22 23 30061 27285 28 28 27 27 26 26 26 31 22 25 22 25 26 27285 25288 31 30 30 31 27 27 28 33 24 27 23 26 32 25288 23349 35 34 34 34 29 29 30 34 25 26 24 27 33 23349 21416 36 38 35 36 32 31 30 33 26 27 25 26 32 21416 19611 38 40 38 39 35 33 32 34 29 29 27 25 32 19611 17879 40 41 39 39 35 35 33 32 30 30 28 27 33 17879 16207 38 41 39 37 33 35 33 33 31 32 31 31 33 16207 14336 35 39 36 35 31 29 31 31 30 28 29 32 30 14336 12889 33 38 35 34 31 28 29 29 31 26 30 32 29 12889 11673 34 37 35 34 31 30 30 29 27 27 33 33 30 11673 10628 33 36 36 33 32 32 31 29 25 29 34 32 30 10628 9780 34 37 36 33 33 34 33 30 26 32 38 35 33 9780 9028 34 37 36 33 33 36 33 32 28 32 41 38 38 9028 8313 36 38 37 33 34 39 35 34 31 35 42 40 41 8313 7595 38 41 40 35 36 40 37 36 33 37 43 39 43 7595 6747 41 44 44 39 40 43 41 40 40 41 47 46 45 6747 6021 45 48 47 44 47 47 46 42 41 43 46 47 47 6021 5536 49 51 51 48 51 50 49 43 41 44 45 47 47 5536 5066 52 54 53 52 54 51 50 44 42 44 45 46 46 5066 4602 54 56 55 54 55 52 51 44 43 43 43 44 45 4602 4145 56 59 58 56 56 53 50 43 43 42 41 42 44 4145 3693 57 61 60 57 57 53 49 42 42 40 38 40 42 3693 3246 58 63 62 58 57 52 47 41 40 38 36 37 41 3246 2805 59 65 62 58 55 50 44 39 37 36 34 35 40 2805 2369 60 66 62 56 53 47 42 37 35 34 32 33 40 2369 1937 60 66 59 52 49 44 39 34 33 32 30 31 40 1937 1511 60 65 56 49 46 41 37 32 31 30 28 30 40 1511 1229 62 62 53 47 44 40 35 31 29 29 27 29 39 1229 1019 64 60 52 45 43 38 34 30 28 28 26 28 38 1019 880 64 59 50 44 42 37 33 29 28 27 26 27 38 880 810 63 57 48 41 39 34 30 27 26 26 25 27 38 810 PARAMETER KEY: (the parameters are described more fully at http://www.dr-jack.net/BLIPMAP/index.html) -------------------------------------------------------------------------------------- Temp@2m = Temperature at 2m AGL [F] Temp@Bot = Temperature at 5m AGL (bottom grid point) [F] Sfc.Heating = Surface Heating of atmosphere [W/m^2] BLDepth = Depth of the Boundary (Mixing) Layer [ft] Hcrit = Height of Critical Updraft Strength [ftMSL] BLTop = Height of Boundary Layer Top (TI=0 height) [ftMSL] Hgt.Variab. = Thermal Height Variability (difference between TI=+4 & 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) BLWind = Wind Speed averaged through BL [kt] Direction = Wind Direction averaged through BL [deg] Max.Converg = Max. Vertical Velocity created by BL Convergence [x10^-2 kt] maxRH = Maximum Relative Humidity in BL [%] CLOUDpotent = Expect clouds at or above sfcLCL if positive (difference between H(TI=0) & blLCL) [ft] sfcLCL = Base of Lowest Clouds, if CLOUDpotent>0 (LCL = Lifting Condensation Level based upon sfc. humidity) [ftMSL] ODpotential = Expect extensive clouds at blLCL if positive (difference between H(TI=0) & blLCL) [ft] blLCL = Base of Extensive Clouds, if ODpotential>0 (LCL = Lifting Condensation Level based upon BL humidity) [ftMSL] * = Indicates BL Top (TI=0 Height) on profiles Results neglect thermals created by small-scale features not resolved by the smoothed model topography