UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120512.upa.cvt Date: 1200Z 5 DEC 25 Searching for X1538... Searching the city database file for: X1538 ... Date:1200Z 5 DEC 25 Station: X1538 WMO ident: 31538 Latitude: 50.07 Longitude: 132.13 ------------------------------------------------------------------------------- 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 76 SFC 964 351 -17.7 -22.1 68 4.4 -18.3 360 1 258.1 258.2 257.1 260.0 0.67 2 954 429 -16.5 -19.7 76 3.2 -17.0 342 4 260.1 260.3 259.0 262.4 0.84 3 925 661 -17.1 -21.2 70 4.1 -17.8 290 11 261.8 261.9 260.2 263.9 0.76 4 865 1165 -17.3 -21.6 69 4.3 -18.0 314 16 266.7 266.8 263.9 268.9 0.79 5 850 1297 -16.7 -20.7 71 4.0 -17.4 320 17 268.7 268.8 265.4 271.1 0.86 6 822 1549 -15.3 -19.1 73 3.8 -16.0 320 21 272.7 272.9 268.4 275.7 1.03 7 751 2227 -18.1 -24.1 59 6.0 -19.1 320 30 276.8 276.9 270.5 279.0 0.72 8 720 2542 -16.9 -23.9 55 7.0 -18.1 320 35 281.5 281.6 273.3 283.8 0.77 9 700 2753 -17.1 -25.1 50 8.0 -18.5 320 38 283.5 283.7 274.4 285.7 0.71 10 618 3681 -18.7 -29.7 37 11.0 -20.5 318 42 292.0 292.1 278.4 293.7 0.53 11 614 3730 -18.9 -29.9 37 11.0 -20.7 318 43 292.3 292.4 278.6 294.0 0.52 12 500 5240 -23.9 -30.9 52 7.0 -25.0 315 50 303.9 304.0 283.7 305.9 0.58 13 497 5284 -24.1 -31.1 52 7.0 -25.2 315 50 304.2 304.3 283.8 306.1 0.57 14 461 5832 -26.3 -33.3 52 7.0 -27.3 315 51 308.0 308.1 285.2 309.8 0.50 15 400 6850 -31.9 -39.9 45 8.0 -32.7 315 54 313.5 313.6 286.9 314.6 0.30 16 300 8840 -41.5 -49.5 42 8.0 -42.0 320 58 326.9 326.9 291.0 327.4 0.14 17 290 9069 -43.1 -51.1 41 8.0 -43.5 327.8 327.8 291.2 328.2 0.12 TRP WND Sounding variables and indices 1000-500 mb thick: 5164.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 54.91 % Est. max temperature: -2.84 C = 26.89 F Sfc-Lift cond lev (LCL): 896.86 mb = 893.38 m = 2931.00 ft T: -17.19 C 700-500 lapse rate: 2.73 C/km ThetaE index: 0.00 C Layer 964.0-635007559270400.0 mb Conv cond level (CCL): 424.78 mb = 6418.92 m = 21059.19 ft Mean mixing ratio: 0.78 g/kg Conv temperature: 34.82 C = 94.68 F Cap Strength: 24.09 C Lifted Index: 31.98 C Risk: None Lifted Index @300 mb: 43.82 C Lifted Index @700 mb: 17.51 C Showalter Index: 27.06 C Risk: None Total Totals Index: 10.40 C Risk: None Vertical Totals Index: 7.20 C Cross Totals Index: 3.20 C K Index: -21.50 Risk: None Sweat Index: 84.00 Risk: None Energy Index: 7.30 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.58 J/kg Max Up Vert Vel: 7.43 m/s Conv Inhibition (B-): 8963.26 J/kg Cap Strength: 31.64 C Lift Cond Lev (LCL): 854.52 mb = 1257.10 m = 4124.30 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 347 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 ---------------------------------------------------------- 0 964 351 360 1 -0.0 -1.0 | 166 26 -6.3 25.5 1 925 661 290 11 10.3 -3.8 | 190 23 4.0 22.7 2 850 1297 320 17 10.9 -13.0 | 199 14 4.6 13.4 3 700 2753 320 38 24.4 -29.1 | 278 18 18.1 -2.6 4 500 5240 315 50 35.4 -35.4 | 287 30 29.0 -8.9 5 400 6850 315 54 38.2 -38.2 | 290 34 31.9 -11.7 6 300 8840 320 58 37.3 -44.4 | 300 36 31.0 -18.0 Wind Parameters Mean winds (0-6000m): 316.6 at 36.3 knts Storm direction: 346.6 at 27.2 knts Shear (0-3000m) pos: 1.3 neg: 6.0 tot: 7.2 10-3/s Storm rel Dir Shear (0-3000m): 115.7 deg Storm rel helicity (0-3000m) pos: 144.8 neg: 0.0 tot: 144.8 m^2/s^2 ave: 48.3 10^-3 m/s^2 rel: 0.71 Storm rel vorticity (0-3000m) horiz: 7.8 stream: 5.5 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 0.25 Bulk Shear: 110.00 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 ------------------------------------------------------------------------------- 500 295 8 183 23| 0.0 12.7 12.7| 62.4 0.0 62.4 124.9 0.73| 15.0 11.0 1000 307 12 189 20| 3.8 6.3 10.2| 73.5 0.0 73.5 73.5 0.59| 11.4 6.7 1500 313 15 195 17| 2.5 6.6 9.1| 96.7 0.0 96.7 64.5 0.68| 10.1 6.9 2000 316 18 206 15| 1.9 6.7 8.6|120.0 0.0 120.0 60.0 0.73| 9.4 6.9 2500 317 22 219 13| 1.5 6.6 8.2|139.7 0.0 139.7 55.9 0.73| 8.8 6.4 3000 318 24 231 13| 1.3 6.0 7.2|144.8 0.0 144.8 48.3 0.71| 7.8 5.5 4000 318 29 250 14| 1.0 5.1 6.1|153.7 0.0 153.7 38.4 0.67| 6.5 4.3 5000 317 33 263 16| 0.8 4.6 5.3|160.8 0.0 160.8 32.2 0.63| 5.7 3.6 6000 317 36 270 19| 0.6 4.0 4.7|170.2 0.0 170.2 28.4 0.62| 4.9 3.1 Wrote GIF file: /home/apache/climate/data/raob//X1538/skewt/X1538.skewt.20251205.12.gif