UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025122712.upa.cvt Date: 1200Z 27 DEC 25 Searching for X1873... Searching the city database file for: X1873 ... Date:1200Z 27 DEC 25 Station: X1873 WMO ident: 31873 Latitude: 45.87 Longitude: 133.73 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- SFC 1002 102 -19.3 -24.3 65 5.0 -19.9 250 5 253.7 253.8 253.1 255.2 0.53 1 1000 117 -18.5 -23.5 65 5.0 -19.2 250 5 254.6 254.7 254.0 256.2 0.57 2 981 261 -15.5 -20.3 67 4.8 -16.3 257 9 259.1 259.2 258.1 261.2 0.78 3 925 701 -18.1 -25.1 54 7.0 -19.1 280 23 260.8 260.9 258.9 262.3 0.54 4 873 1131 -21.7 -29.7 48 8.0 -22.6 290 26 261.4 261.5 259.0 262.5 0.37 5 850 1328 -22.5 -31.5 44 9.0 -23.4 295 27 262.6 262.6 259.9 263.5 0.32 6 821 1583 -22.7 -32.7 40 10.0 -23.7 297 30 265.0 265.0 261.6 265.9 0.30 7 818 1609 -22.7 -32.7 40 10.0 -23.7 297 30 265.3 265.3 261.9 266.1 0.30 8 805 1727 -21.9 -30.9 44 9.0 -22.9 298 31 267.3 267.4 263.5 268.4 0.36 9 705 2695 -25.5 -32.5 52 7.0 -26.2 305 41 273.7 273.7 267.8 274.8 0.35 10 700 2747 -25.9 -32.9 52 7.0 -26.6 305 42 273.8 273.9 267.9 274.8 0.34 11 612 3711 -30.7 -37.7 50 7.0 -31.3 309 52 279.0 279.0 271.0 279.8 0.24 12 534 4666 -37.1 -46.1 39 9.0 -37.5 313 61 282.4 282.5 272.8 282.8 0.11 13 500 5120 -38.5 -47.5 38 9.0 -38.9 315 66 286.1 286.1 274.8 286.5 0.10 14 432 6109 -44.1 -54.1 32 10.0 -44.4 318 67 291.2 291.2 277.3 291.4 0.06 15 406 6522 -47.1 -58.1 27 11.0 -47.3 320 68 292.5 292.5 278.0 292.7 0.04 16 400 6620 -47.3 -58.3 27 11.0 -47.6 320 68 293.5 293.5 278.4 293.6 0.04 17 357 7367 -50.1 -62.1 23 12.0 -50.3 325 71 299.5 299.5 281.1 299.6 0.03 18 351 7477 -50.2 -62.2 23 12.0 -50.4 325 73 300.8 300.8 281.7 300.9 0.03 19 301 8478 -50.7 -62.7 23 12.0 -51.0 315 64 313.6 313.6 286.6 313.7 0.03 20 300 8500 -50.5 -62.5 23 12.0 -50.7 315 64 314.2 314.2 286.8 314.3 0.03 21 250 9700 -48.5 -62.5 18 14.0 -48.9 305 52 334.0 334.0 292.8 334.1 0.03 22 200 11160 -47.9 -64.9 12 17.0 -48.4 285 52 356.9 356.9 298.1 357.1 0.03 23 150 13070 -44.9 -64.9 9 20.0 -45.9 275 50 392.7 392.7 304.2 392.9 0.04 24 112 15024 -43.7 -65.7 7 22.0 -45.2 261 46 429.2 429.2 308.8 429.4 0.05 25 100 15780 -46.5 -68.5 6 22.0 -47.7 255 44 437.9 437.9 309.7 438.1 0.04 26 87 16696 -50.7 -72.7 6 22.0 -51.7 257 37 447.2 447.2 310.6 447.4 0.02 27 70 18120 -48.5 -71.5 5 23.0 -49.9 260 27 480.6 480.6 313.5 480.8 0.04 28 58 19344 -49.1 -72.1 5 23.0 -50.7 243 19 505.8 505.8 315.4 506.1 0.04 29 50 20300 -53.9 -75.9 5 22.0 -55.0 230 13 516.5 516.5 316.1 516.6 0.03 30 49 20430 -54.1 -76.1 5 22.0 -55.2 230 13 519.0 519.0 316.2 519.1 0.03 31 46 20843 -47.9 -71.9 5 24.0 -50.0 229 13 543.4 543.4 317.8 543.7 0.05 32 39 21919 -54.7 -76.7 5 22.0 -55.9 228 13 552.5 552.5 318.2 552.7 0.03 33 37 22261 -49.7 -73.7 4 24.0 -51.9 227 13 573.7 573.7 319.3 574.0 0.05 34 31 23409 -54.7 -77.7 4 23.0 -56.2 225 13 590.0 590.0 320.2 590.2 0.03 35 30 23620 -54.1 -77.1 4 23.0 -55.8 225 13 597.2 597.2 320.5 597.4 0.04 36 27 24300 -50.5 -74.5 4 24.0 -53.1 222 12 625.5 625.6 321.7 626.0 0.06 37 20 26260 -49.3 -73.3 4 24.0 -52.8 215 9 685.3 685.3 324.0 686.1 0.09 38 15 28140 -50.7 -74.7 4 24.0 -54.5 739.4 739.4 325.7 740.3 0.10 39 13 29079 -47.5 -72.5 4 25.0 -52.9 781.4 781.4 326.8 782.9 0.16 TRP 357 7367 -50.1 -62.1 23 12.0 -50.3 325 71 299.5 299.5 281.1 299.6 0.03 WND 351 7477 -50.2 -62.2 23 12.0 -50.4 325 73 300.8 300.8 281.7 300.9 0.03 Sounding variables and indices 1000-500 mb thick: 5003.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.08 inches Sfc-500 mean rel hum: 48.32 % Est. max temperature: -10.53 C = 13.05 F Sfc-Lift cond lev (LCL): 922.73 mb = 719.25 m = 2359.72 ft T: -18.25 C 700-500 lapse rate: 5.31 C/km ThetaE index: 0.00 C Layer 1002.0- 0.0 mb Conv cond level (CCL): 680.41 mb = 2950.66 m = 9680.53 ft Mean mixing ratio: 0.62 g/kg Conv temperature: 1.91 C = 35.44 F Cap Strength: 17.84 C Lifted Index: 20.48 C Risk: None Lifted Index @300 mb: 37.55 C Lifted Index @700 mb: 11.93 C Showalter Index: 18.61 C Risk: None Total Totals Index: 23.00 C Risk: None Vertical Totals Index: 16.00 C Cross Totals Index: 7.00 C K Index: -22.50 Risk: None Sweat Index: 120.00 Risk: None Energy Index: 4.88 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 17.58 J/kg Max Up Vert Vel: 5.93 m/s Conv Inhibition (B-): 78087.60 J/kg Cap Strength: 20.18 C Lift Cond Lev (LCL): 863.91 mb = 1208.40 m = 3964.52 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 338 at 34 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 1002 102 250 5 4.7 1.7 | 167 34 -7.7 33.0 1 1000 117 250 5 4.7 1.7 | 167 34 -7.7 33.0 2 925 701 280 23 22.7 -4.0 | 201 29 10.3 27.3 3 850 1328 295 27 24.5 -11.4 | 211 23 12.1 19.8 4 700 2747 305 42 34.4 -24.1 | 252 23 22.1 7.2 5 500 5120 315 66 46.7 -46.7 | 294 38 34.3 -15.4 6 400 6620 320 68 43.7 -52.1 | 304 38 31.4 -20.8 7 357 7367 325 71 40.7 -58.2 | 313 39 28.4 -26.9 8 351 7477 325 73 41.9 -59.8 | 314 41 29.5 -28.5 9 300 8500 315 64 45.3 -45.3 | 293 36 32.9 -14.0 10 250 9700 305 52 42.6 -29.8 | 267 30 30.2 1.4 11 200 11160 285 52 50.2 -13.5 | 245 42 37.9 17.8 12 150 13070 275 50 49.8 -4.4 | 234 46 37.5 26.9 13 100 15780 255 44 42.5 11.4 | 215 52 30.1 42.6 14 70 18120 260 27 26.6 4.7 | 202 39 14.2 35.9 15 50 20300 230 13 10.0 8.4 | 177 40 -2.4 39.6 16 30 23620 225 13 9.2 9.2 | 176 41 -3.2 40.4 17 20 26260 215 9 5.2 7.4 | 169 39 -7.2 38.6 Wind Parameters Mean winds (0-6000m): 308.4 at 44.8 knts Storm direction: 338.4 at 33.6 knts Shear (0-3000m) pos: 7.4 neg: 0.0 tot: 7.4 10-3/s Storm rel Dir Shear (0-3000m): 93.4 deg Storm rel helicity (0-3000m) pos: 313.0 neg: 0.0 tot: 313.0 m^2/s^2 ave: 104.3 10^-3 m/s^2 rel: 0.92 Storm rel vorticity (0-3000m) horiz: 8.1 stream: 7.4 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.10 Bulk Shear: 172.11 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 270 12 180 31| 16.0 0.0 16.0|134.0 0.0 134.0 268.1 0.97| 16.5 16.0 1000 280 18 191 29| 11.3 0.0 11.3|183.2 0.0 183.2 183.2 0.90| 12.5 11.3 1500 286 21 197 26| 9.2 0.0 9.2|212.8 0.0 212.8 141.9 0.89| 10.4 9.2 2000 291 24 204 25| 8.3 0.0 8.3|246.4 0.0 246.4 123.2 0.90| 9.2 8.3 2500 294 27 211 23| 7.8 0.0 7.8|280.8 0.0 280.8 112.3 0.92| 8.6 7.9 3000 297 29 218 23| 7.4 0.0 7.4|313.0 0.0 313.0 104.3 0.92| 8.1 7.4 4000 302 35 233 22| 6.9 0.0 6.9|379.0 0.0 379.0 94.8 0.91| 7.4 6.8 5000 306 40 249 22| 6.6 0.0 6.6|454.1 0.0 454.1 90.8 0.88| 7.1 6.3 6000 308 45 261 23| 5.6 0.0 5.6|495.6 0.0 495.6 82.6 0.89| 6.3 5.6 Wrote GIF file: /home/apache/climate/data/raob//X1873/skewt/X1873.skewt.20251227.12.gif