UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for X1977... Searching the city database file for: X1977 ... Date:1200Z 8 DEC 25 Station: X1977 WMO ident: 31977 Latitude: 43.27 Longitude: 132.05 ------------------------------------------------------------------------------- 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 1014 90 -4.1 -10.1 63 6.0 -5.8 315 7 268.0 268.3 266.5 272.8 1.75 1 1000 200 -4.3 -11.3 58 7.0 -6.2 325 11 268.9 269.1 266.9 273.3 1.61 2 992 263 -4.5 -11.5 58 7.0 -6.5 326 12 269.3 269.5 267.1 273.7 1.60 3 943 657 -9.1 -16.1 57 7.0 -10.7 333 17 268.5 268.7 265.8 271.7 1.15 4 925 805 -10.3 -16.3 61 6.0 -11.6 335 19 268.8 269.0 266.0 272.0 1.16 5 850 1449 -15.5 -19.7 70 4.2 -16.3 320 19 269.9 270.1 266.4 272.6 0.94 6 798 1922 -19.1 -23.0 71 3.9 -19.7 315 22 271.0 271.1 266.8 273.2 0.75 7 736 2517 -24.3 -31.3 52 7.0 -25.1 309 25 271.7 271.7 266.5 272.8 0.38 8 700 2882 -25.1 -35.1 39 10.0 -26.1 305 27 274.7 274.7 268.4 275.5 0.28 9 636 3576 -26.7 -39.7 28 13.0 -27.8 301 37 280.5 280.5 271.8 281.1 0.19 10 571 4351 -28.7 -39.7 34 11.0 -29.6 296 48 286.9 287.0 275.5 287.6 0.21 11 500 5290 -34.9 -45.9 32 11.0 -35.5 290 62 290.5 290.5 277.1 290.9 0.13 12 420 6490 -42.5 -50.5 41 8.0 -42.8 290 74 295.6 295.6 279.5 295.9 0.09 13 409 6669 -42.5 -50.5 41 8.0 -42.8 290 76 297.9 297.9 280.6 298.2 0.09 14 400 6820 -42.3 -50.3 41 8.0 -42.6 290 77 300.0 300.0 281.5 300.4 0.10 15 398 6854 -42.3 -50.3 41 8.0 -42.6 290 78 300.4 300.5 281.7 300.8 0.10 16 362 7487 -45.0 -54.0 36 9.0 -45.3 295 89 305.1 305.1 283.5 305.4 0.07 17 300 8720 -50.3 -61.3 26 11.0 -50.5 290 79 314.5 314.5 286.9 314.6 0.03 18 278 9213 -52.9 -63.9 25 11.0 -53.1 285 68 317.6 317.6 288.0 317.7 0.03 19 250 9900 -50.1 -62.1 23 12.0 -50.4 280 68 331.6 331.6 292.2 331.7 0.04 20 242 10113 -48.9 -60.9 23 12.0 -49.3 279 67 336.5 336.5 293.5 336.7 0.04 21 202 11295 -50.3 -64.3 18 14.0 -50.7 270 64 352.1 352.1 297.1 352.3 0.03 22 200 11360 -49.1 -63.1 18 14.0 -49.6 270 64 355.0 355.0 297.7 355.2 0.04 23 190 11699 -46.9 -61.9 16 15.0 -47.5 271 64 363.8 363.8 299.5 364.0 0.05 24 153 13138 -46.7 -64.7 11 18.0 -47.5 275 62 387.4 387.4 303.4 387.6 0.04 25 150 13270 -46.9 -64.9 11 18.0 -47.7 275 62 389.2 389.3 303.7 389.4 0.04 26 118 14835 -53.5 -72.5 8 19.0 -54.0 272 60 404.7 404.7 305.9 404.8 0.02 27 100 15900 -53.3 -72.3 8 19.0 -53.9 270 58 424.7 424.7 308.3 424.9 0.02 28 78 17495 -52.9 -72.9 7 20.0 -53.7 263 64 456.9 456.9 311.5 457.0 0.03 29 70 18200 -46.9 -67.9 7 21.0 -48.5 260 66 484.1 484.1 313.8 484.4 0.06 30 53 20019 -57.1 -77.1 6 20.0 -57.8 235 40 500.5 500.5 315.0 500.6 0.02 31 50 20390 -57.3 -77.3 6 20.0 -58.0 230 35 508.4 508.5 315.5 508.6 0.02 32 46 20914 -58.7 -78.7 6 20.0 -59.4 233 36 517.3 517.3 316.1 517.5 0.02 33 43 21341 -54.7 -75.7 6 21.0 -55.8 236 36 537.3 537.3 317.3 537.5 0.03 34 37 22296 -56.7 -77.7 5 21.0 -57.8 242 38 555.7 555.7 318.4 555.9 0.03 35 33 23028 -51.9 -73.9 5 22.0 -53.8 246 39 586.9 587.0 320.0 587.3 0.05 36 31 23430 -54.5 -75.5 6 21.0 -56.1 249 40 590.5 590.5 320.2 590.8 0.04 37 30 23640 -53.3 -74.3 6 21.0 -55.1 250 40 599.3 599.4 320.6 599.7 0.05 38 27 24324 -51.5 -73.5 6 22.0 -53.8 245 34 622.7 622.8 321.6 623.2 0.07 39 25 24821 -55.5 -76.5 6 21.0 -57.2 241 30 625.1 625.1 321.7 625.5 0.05 40 23 25355 -55.7 -77.7 5 22.0 -57.5 237 25 639.6 639.6 322.3 639.9 0.04 41 21 25944 -49.7 -72.7 5 23.0 -53.0 232 20 674.6 674.6 323.6 675.4 0.10 42 21 25944 -45.7 -68.7 6 23.0 -50.2 232 20 686.6 686.7 324.0 688.1 0.18 43 20 26270 -45.9 -68.9 6 23.0 -50.4 230 17 695.7 695.8 324.3 697.2 0.18 44 17 27338 -51.5 -73.5 6 22.0 -54.8 710.8 710.9 324.8 711.8 0.11 45 16 27732 -52.1 -74.1 5 22.0 -55.4 721.3 721.3 325.1 722.2 0.10 46 13 29084 -49.5 -72.5 5 23.0 -54.1 774.4 774.5 326.6 776.0 0.16 47 11 30173 -51.5 -74.5 5 23.0 -55.9 805.1 805.1 327.4 806.5 0.14 TRP 278 9213 -52.9 -63.9 25 11.0 -53.1 285 68 317.6 317.6 288.0 317.7 0.03 WND 362 7487 -45.0 -54.0 36 9.0 -45.3 295 89 305.1 305.1 283.5 305.4 0.07 Sounding variables and indices 1000-500 mb thick: 5090.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 47.51 % Est. max temperature: -2.38 C = 27.72 F Sfc-Lift cond lev (LCL): 922.13 mb = 828.63 m = 2718.57 ft T: -10.49 C 700-500 lapse rate: 4.07 C/km ThetaE index: 1.93 C Layer 943.0- 925.0 mb Conv cond level (CCL): 852.93 mb = 1422.79 m = 4667.90 ft Mean mixing ratio: 1.36 g/kg Conv temperature: -2.21 C = 28.01 F Cap Strength: 12.71 C Lifted Index: 14.88 C Risk: None Lifted Index @300 mb: 29.66 C Lifted Index @700 mb: 3.30 C Showalter Index: 14.88 C Risk: None Total Totals Index: 34.60 C Risk: None Vertical Totals Index: 19.40 C Cross Totals Index: 15.20 C K Index: -10.30 Risk: None Sweat Index: 100.00 Risk: None Energy Index: 3.82 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.30 J/kg Max Up Vert Vel: 2.14 m/s Conv Inhibition (B-): 66266.21 J/kg Cap Strength: 14.66 C Lift Cond Lev (LCL): 867.02 mb = 1298.00 m = 4258.48 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 329 at 27 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 1014 90 315 7 4.9 -4.9 | 154 20 -9.0 18.4 1 1000 200 325 11 6.3 -9.0 | 152 16 -7.6 14.3 2 925 805 335 19 8.0 -17.2 | 136 9 -5.9 6.1 3 850 1449 320 19 12.2 -14.6 | 169 9 -1.7 8.8 4 700 2882 305 27 22.1 -15.5 | 226 11 8.2 7.8 5 500 5290 290 62 58.3 -21.2 | 267 44 44.3 2.1 6 400 6820 290 77 72.4 -26.3 | 273 58 58.4 -3.0 7 362 7487 295 89 80.7 -37.6 | 282 68 66.7 -14.3 8 300 8720 290 79 74.2 -27.0 | 274 60 60.3 -3.7 9 278 9213 285 68 65.7 -17.6 | 264 52 51.7 5.7 10 250 9900 280 68 67.0 -11.8 | 258 54 53.0 11.5 11 200 11360 270 64 64.0 -0.0 | 245 55 50.1 23.3 12 150 13270 275 62 61.8 -5.4 | 249 51 47.8 17.9 13 100 15900 270 58 58.0 -0.0 | 242 50 44.1 23.3 14 70 18200 260 66 65.0 11.5 | 236 62 51.1 34.8 15 50 20390 230 35 26.8 22.5 | 196 48 12.9 45.8 16 30 23640 250 40 37.6 13.7 | 213 44 23.6 37.0 17 20 26270 230 17 13.0 10.9 | 178 34 -0.9 34.3 Wind Parameters Mean winds (0-6000m): 299.1 at 36.2 knts Storm direction: 329.1 at 27.2 knts Shear (0-3000m) pos: 1.7 neg: 3.0 tot: 4.6 10-3/s Storm rel Dir Shear (0-3000m): 85.0 deg Storm rel helicity (0-3000m) pos: 39.5 neg: -11.7 tot: 27.8 m^2/s^2 ave: 9.3 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.03 Bulk Shear: 88.66 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 ------------------------------------------------------------------------------- 500 328 13 150 15| 9.9 0.0 9.9| 0.0 -7.8 -7.8 -15.7 -0.21| 9.9 -2.1 1000 331 15 147 12| 5.0 1.5 6.5| 4.5 -11.7 -7.2 -7.2 -0.10| 7.5 -0.8 1500 328 17 151 10| 3.3 1.9 5.2| 12.3 -11.7 0.6 0.4 0.11| 6.3 0.7 2000 324 18 158 10| 2.5 2.3 4.7| 19.6 -11.7 7.9 3.9 0.25| 5.6 1.4 2500 320 19 168 9| 2.0 2.5 4.5| 27.0 -11.7 15.2 6.1 0.34| 5.2 1.7 3000 317 20 180 8| 1.7 3.0 4.6| 39.5 -11.7 27.8 9.3 0.41| 5.2 2.2 4000 310 25 213 9| 1.2 4.2 5.4| 74.5 -11.7 62.8 15.7 0.44| 5.9 2.6 5000 304 30 240 13| 1.0 4.9 5.9| 89.5 -11.7 77.8 15.6 0.36| 6.3 2.3 6000 299 36 252 19| 0.8 5.0 5.9|125.1 -12.4 112.8 18.8 0.34| 6.2 2.1 Wrote GIF file: /home/apache/climate/data/raob//X1977/skewt/X1977.skewt.20251208.12.gif