UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121812.upa.cvt Date: 1200Z 18 DEC 25 Searching for UIBB... Searching the city database file for: UIBB ... Date:1200Z 18 DEC 25 Station: UIBB WMO ident: 30309 Latitude: 56.07 Longitude: 101.83 Elevation: 489.00 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 0 1000 174 SFC 969 489 -14.7 -17.9 77 3.2 -15.3 270 1 260.8 260.9 259.8 263.4 0.96 2 925 762 -18.9 -22.7 72 3.8 -19.4 280 23 260.0 260.1 258.5 261.8 0.67 3 919 810 -19.3 -23.0 72 3.7 -19.8 282 23 260.1 260.2 258.6 261.9 0.65 4 850 1387 -23.3 -26.6 74 3.3 -23.7 310 23 261.7 261.8 259.6 263.2 0.51 5 836 1508 -24.3 -27.6 74 3.3 -24.6 301 21 261.9 262.0 259.7 263.3 0.47 6 804 1794 -22.9 -25.9 76 3.0 -23.3 278 18 266.4 266.5 263.2 268.0 0.58 7 782 1997 -23.9 -26.7 78 2.8 -24.2 263 15 267.4 267.5 263.9 269.0 0.55 8 775 2062 -23.7 -26.4 78 2.7 -24.1 258 14 268.3 268.4 264.6 270.0 0.57 9 719 2607 -26.7 -29.6 76 2.9 -27.0 215 7 270.8 270.9 266.1 272.2 0.46 10 700 2800 -27.9 -31.0 75 3.1 -28.2 200 5 271.6 271.7 266.5 272.8 0.41 11 500 5130 -45.5 -49.0 68 3.5 -45.6 185 27 277.6 277.6 269.8 277.9 0.09 12 419 6283 -54.1 -57.8 64 3.7 -54.2 197 32 280.9 280.9 271.8 281.1 0.04 13 400 6580 -54.5 -58.2 64 3.7 -54.5 200 33 284.2 284.2 273.6 284.3 0.04 14 383 6859 -55.5 -59.1 64 3.6 -55.5 215 29 286.4 286.4 274.8 286.5 0.03 15 317 8068 -56.7 -60.3 64 3.6 -56.8 277 18 300.6 300.7 281.7 300.8 0.04 16 300 8420 -56.1 -59.8 63 3.7 -56.2 295 15 306.3 306.3 284.0 306.4 0.04 17 250 9580 -55.3 -59.5 59 4.2 -55.4 305 19 323.9 323.9 290.0 324.1 0.05 18 200 11000 -55.5 -60.3 55 4.8 -55.6 290 25 344.9 344.9 295.6 345.1 0.06 19 150 12830 -56.5 -62.5 47 6.0 -56.6 290 35 372.7 372.7 301.1 373.0 0.06 20 100 15420 -55.1 -63.1 36 8.0 -55.4 295 36 421.3 421.3 307.9 421.7 0.08 21 82 16677 -58.5 -67.5 30 9.0 -58.8 289 42 438.9 438.9 309.8 439.2 0.05 22 70 17680 -55.1 -65.1 28 10.0 -55.6 285 46 466.5 466.5 312.4 467.0 0.09 23 50 19820 -55.5 -66.5 24 11.0 -56.2 275 38 512.7 512.7 315.9 513.3 0.10 24 46 20351 -56.1 -68.1 21 12.0 -56.9 523.6 523.6 316.6 524.2 0.09 25 34 22291 -51.9 -64.9 20 13.0 -53.5 581.9 582.0 319.8 583.3 0.18 TRP 383 6859 -55.5 -59.1 64 3.6 -55.5 215 29 286.4 286.4 274.8 286.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 4956.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 73.21 % Est. max temperature: -11.26 C = 11.72 F Sfc-Lift cond lev (LCL): 919.80 mb = 803.98 m = 2637.70 ft T: -19.25 C 700-500 lapse rate: 7.55 C/km ThetaE index: 1.59 C Layer 925.0- 919.0 mb Conv cond level (CCL): 852.70 mb = 1363.62 m = 4473.75 ft Mean mixing ratio: 0.70 g/kg Conv temperature: -13.83 C = 7.11 F Cap Strength: 8.88 C Lifted Index: 12.49 C Risk: None Lifted Index @300 mb: 31.07 C Lifted Index @700 mb: 8.88 C Showalter Index: 11.90 C Risk: None Total Totals Index: 41.10 C Risk: None Vertical Totals Index: 22.20 C Cross Totals Index: 18.90 C K Index: -7.50 Risk: None Sweat Index: 73.00 Risk: None Energy Index: 3.15 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.10 J/kg Max Up Vert Vel: 2.05 m/s Conv Inhibition (B-): 45417.48 J/kg Cap Strength: 12.32 C Lift Cond Lev (LCL): 868.58 mb = 1227.30 m = 4026.52 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 243 at 14 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 ---------------------------------------------------------- 0 969 489 270 1 1.0 -0.0 | 61 14 -11.9 -6.5 1 925 762 280 23 22.7 -4.0 | 317 14 9.7 -10.5 2 850 1387 310 23 17.6 -14.8 | 348 22 4.7 -21.3 3 700 2800 200 5 1.7 4.7 | 81 11 -11.2 -1.9 4 500 5130 185 27 2.4 26.9 | 153 23 -10.6 20.3 5 400 6580 200 33 11.3 31.0 | 176 25 -1.6 24.5 6 383 6859 215 29 16.6 23.8 | 192 18 3.7 17.2 7 300 8420 295 15 13.6 -6.3 | 357 13 0.7 -12.9 8 250 9580 305 19 15.6 -10.9 | 351 18 2.6 -17.4 9 200 11000 290 25 23.5 -8.6 | 325 18 10.6 -15.1 10 150 12830 290 35 32.9 -12.0 | 313 27 20.0 -18.5 11 100 15420 295 36 32.6 -15.2 | 318 29 19.7 -21.8 12 70 17680 285 46 44.4 -11.9 | 300 37 31.5 -18.5 13 50 19820 275 38 37.9 -3.3 | 292 27 24.9 -9.9 Wind Parameters Mean winds (0-6000m): 213.1 at 19.3 knts Storm direction: 243.1 at 14.5 knts Shear (0-3000m) pos: 3.6 neg: 4.7 tot: 8.3 10-3/s Storm rel Dir Shear (0-3000m): 53.5 deg Storm rel helicity (0-3000m) pos: 65.7 neg: -65.5 tot: 0.2 m^2/s^2 ave: 0.1 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 12.6 stream: -0.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.04 Bulk Shear: 55.62 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 ------------------------------------------------------------------------------- 500 283 16 344 11| 22.7 0.0 22.7| 12.6 -42.8 -30.1 -60.3 -0.56| 27.4-15.3 1000 293 19 341 15| 10.7 0.0 10.7| 43.2 -51.0 -7.8 -7.8 -0.28| 19.3 -5.4 1500 292 19 340 14| 7.2 4.7 11.9| 43.7 -62.2 -18.6 -12.4 -0.25| 17.7 -4.5 2000 291 17 345 13| 5.4 5.6 10.9| 48.0 -62.2 -14.3 -7.1 -0.12| 16.0 -1.9 2500 293 15 354 13| 4.3 5.0 9.3| 52.6 -65.5 -12.9 -5.2 -0.10| 14.1 -1.4 3000 285 14 355 10| 3.6 4.7 8.3| 65.7 -65.5 0.2 0.1 -0.03| 12.6 -0.4 4000 257 15 336 4| 2.7 4.6 7.3| 90.1 -65.5 24.5 6.1 0.06| 10.7 0.6 5000 226 17 171 5| 2.2 4.1 6.3|116.1 -65.5 50.5 10.1 0.10| 9.4 1.0 6000 213 19 166 10| 2.2 3.5 5.7|158.9 -65.5 93.4 15.6 0.16| 8.4 1.4 Wrote GIF file: /home/apache/climate/data/raob//UIBB/skewt/UIBB.skewt.20251218.12.gif