AVERAGE BASED ON 31 DAYS DrJack's BLIP for: DEC 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 41.7 40.8 43.7 48.0 52.0 54.4 55.7 40.2 56.4 54.2 51.6 49.6 47.3 Temp@2m Temp@Bot 41.9 41.0 43.7 47.7 51.2 53.4 54.8 56.2 56.0 54.2 51.9 50.0 47.7 Temp@Bot Sfc.Heating -18 -13 2 40 99 128 116 92 47 -2 -8 -9 -15 Sfc.Heating BLDepth 16 16 42 278 981 1387 1582 2028 1788 657 16 16 16 BLDepth Hcrit 794 794 794 794 1150 1414 1511 1640 1203 794 794 794 794 Hcrit BLTop 810 810 836 1072 1775 2181 2376 2821 2582 1451 810 810 810 BLTop Hgt.Variab. 453 402 967 1736 1844 2255 2694 2619 2745 3181 3014 2505 1600 Hgt.Variab. W* 1 1 16 75 157 201 205 203 151 28 0 0 0 W* B/S 0 0 1 3 8 9 10 8 6 1 0 0 0 B/S BLWind 5.5 5.2 4.8 4.3 2.4 1.9 2.8 2.0 2.2 1.4 1.4 3.0 4.4 BLWind Direction 242 242 245 234 240 203 216 259 250 244 220 237 241 Direction Max.Converg -5 -5 -4 -2 0 3 2 8 5 2 0 -2 -4 Max.Converg maxRH 75 76 75 74 71 67 67 64 62 57 55 59 65 maxRH CLOUDpotent -7186 -7278 -7162 -6334 -5877 -5849 -5316 -5478 -5816 -6574 -6887 -6455 -6000 CLOUDpotent sfcLCL 7998 8090 8001 7408 7654 8031 7694 8301 8400 8026 7699 7267 6812 sfcLCL ODpotential -7186 -7278 -7170 -6368 -6087 -6126 -5597 -5764 -6051 -6640 -6887 -6455 -6000 ODpotential blCL 7998 8090 8008 7442 7864 8309 7975 8587 8634 8092 7699 7267 6812 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] 32236 57 288 53 289 55 288 56 289 54 288 52 288 55 288 52 290 52 290 53 288 53 288 54 288 54 288 32236 30015 54 287 50 287 51 287 52 288 48 286 48 287 52 287 49 288 48 288 49 287 48 287 48 288 48 287 30015 28328 51 286 48 286 48 285 49 287 45 284 46 284 50 286 48 286 48 285 47 284 46 286 47 287 46 286 28328 26604 47 284 46 285 45 284 47 286 43 283 43 284 47 286 44 285 45 284 44 284 44 284 45 286 44 286 26604 24707 45 284 43 285 43 284 44 286 41 283 40 283 42 286 41 285 42 283 42 284 41 285 42 287 42 287 24707 22898 41 283 40 283 40 282 41 286 39 282 38 282 40 286 39 285 39 284 39 285 38 287 38 289 38 288 22898 21159 37 285 37 282 38 281 38 285 37 281 36 282 36 285 36 285 36 285 37 285 37 287 37 289 36 290 21159 19580 32 285 32 282 33 280 34 283 33 279 32 279 33 284 34 284 33 284 33 285 34 288 34 289 33 290 19580 17866 29 283 29 282 30 280 31 281 30 278 30 278 30 281 30 282 30 283 30 284 30 286 30 287 30 288 17866 16381 27 282 27 280 27 277 28 279 27 276 27 276 27 280 27 281 26 282 27 282 27 284 26 285 26 285 16381 14817 25 281 25 280 26 277 24 279 23 275 23 275 24 278 24 279 23 281 23 280 23 282 23 280 22 281 14817 13304 22 279 23 280 23 278 22 278 21 274 20 275 21 278 20 279 19 279 19 278 20 279 20 278 20 278 13304 12038 19 277 19 277 20 276 19 276 19 274 18 274 18 278 18 278 17 276 16 275 17 275 18 275 18 275 12038 10662 15 274 16 273 17 274 16 273 16 272 15 271 16 278 15 278 14 272 14 271 15 271 16 273 16 273 10662 9268 13 272 15 273 15 273 14 268 14 267 13 266 14 270 13 273 12 271 12 270 13 267 13 271 13 271 9268 7924 12 268 13 270 13 273 12 265 12 262 11 260 12 264 11 270 10 269 11 268 12 268 11 271 11 271 7924 6724 10 261 11 266 10 268 10 265 10 258 9 251 10 257 10 264 9 259 9 258 10 261 10 266 9 267 6724 5969 9 251 9 261 8 262 9 260 8 252 9 244 9 251 9 255 8 252 9 254 10 257 9 259 8 263 5969 5472 8 244 8 256 8 256 8 256 7 248 8 240 8 245 9 247 8 247 9 250 9 253 8 256 7 258 5472 5005 7 238 7 252 7 249 7 251 7 244 8 234 8 239 8 243 8 242 9 247 9 250 8 254 6 254 5005 4545 7 233 6 248 6 242 6 245 6 238 8 229 8 234 8 240 8 239 9 243 8 247 7 252 6 251 4545 4091 6 229 6 244 5 232 5 236 6 230 7 221 8 227 7 238 7 237 8 241 8 246 7 252 5 249 4091 3644 6 224 5 236 5 221 5 224 5 217 7 214 8 219 6 235 7 237 8 241 7 245 6 251 4 247 3644 3203 6 220 4 227 4 212 4 212 5 206 6 206 7 214 6 231 6 237 7 242 7 246 5 252 4 248 3203 2767 6 215 3 216 4 201 4 202 5 198 6 198 7 207 5 224 5 236 6 242 6 249 5 256 3 249 2767 2338 6 211 3 210 3 193 4 197 5 194 6 194 7 202 4 220 4 233 5 242 5 251 4 257 3 253 2338 1914 5 212 3 208 3 193 4 196 5 193 6 189 6 203 3 216 4 228 4 238 4 250 3 253 3 250 1914 1495 6 218 4 213 4 207 5 203 5 199 5 186 5 201 2 211 3 219 3 232 3 243 3 246 2 239 1495 1219 6 227 4 217 4 214 6 212 4 207 4 186 4 198 2 205 2 212 3 227 2 230 2 234 2 226 1219 1014 6 240 5 232 6 229 6 221 4 215 3 183 3 195 1 192 1 213 2 225 2 215 2 217 3 223 1014 878 9 250 8 246 8 244 6 234 3 221 2 181 2 192 1 177 1 209 1 229 1 211 2 217 4 236 878 810 5 242 5 242 5 243 4 231 2 217 2 166 2 183 1 136 1 189 1 218 1 220 3 237 4 241 810 PROFILES OF RELATIVE HUMIDITY [%] ---------------------------- VALIDATION TIME ---------------------------------------------- Height 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z 0Z 1Z 2Z 3Z [ft] ------------------------------------------------------------------------------------------- [ft] 32236 19 18 18 22 23 24 21 20 21 21 21 21 21 32236 30015 26 23 25 28 29 30 30 29 27 26 26 26 27 30015 28328 31 29 30 33 33 34 34 36 33 32 31 30 29 28328 26604 35 35 36 35 39 38 37 38 38 38 36 35 32 26604 24707 36 39 42 38 41 40 39 39 40 40 39 37 35 24707 22898 37 40 42 40 41 42 40 41 42 40 39 36 36 22898 21159 38 40 42 43 43 42 41 41 42 44 42 39 36 21159 19580 41 42 43 41 42 41 40 42 42 43 43 42 38 19580 17866 44 48 48 41 43 44 41 42 43 45 44 44 40 17866 16381 46 48 50 45 45 45 42 43 44 46 46 44 44 16381 14817 46 46 48 46 43 44 45 45 44 47 48 46 45 14817 13304 46 46 47 45 43 46 46 47 49 50 51 49 48 13304 12038 48 47 48 46 44 45 47 47 51 52 52 51 51 12038 10662 49 49 48 46 45 45 46 46 47 49 51 50 52 10662 9268 48 49 48 47 46 45 45 45 46 47 49 50 50 9268 7924 48 49 47 48 48 46 46 46 46 47 48 48 49 7924 6724 49 48 48 51 50 48 49 47 47 48 50 51 51 6724 5969 52 48 48 55 53 52 53 50 49 51 52 53 54 5969 5472 54 50 50 57 54 53 55 53 52 53 54 55 56 5472 5005 55 51 51 58 55 55 57 53 53 54 54 56 57 5005 4545 56 53 53 59 56 56 58 53 53 55 55 56 58 4545 4091 58 55 54 60 57 57 59 53 53 55 55 56 59 4091 3644 59 56 55 61 59 58 60 54 53 55 55 57 58 3644 3203 61 58 57 62 60 59 61 54 53 55 55 57 58 3203 2767 62 60 59 64 61 59 61 54 53 55 55 57 58 2767 2338 64 63 61 65 62 60 61 54 53 55 55 57 58 2338 1914 65 65 64 66 63 61 62 54 53 55 55 57 59 1914 1495 67 68 66 68 64 60 60 53 52 54 55 58 60 1495 1219 69 69 69 71 65 59 59 52 51 53 55 58 61 1219 1014 70 72 71 71 65 59 57 51 50 52 54 58 62 1014 878 75 76 75 72 65 58 56 50 49 52 55 59 65 878 810 86 87 80 73 64 57 55 49 49 53 59 66 75 810 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