UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025103112.upa.cvt Date: 1200Z 31 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 31 OCT 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 1004 110 -15.7 -17.9 83 2.2 -16.1 260 3 257.2 257.3 256.8 259.7 0.93 1 1000 140 -15.9 -18.5 80 2.6 -16.3 265 3 257.2 257.4 256.8 259.6 0.89 2 948 540 -18.3 -20.8 81 2.5 -18.7 316 10 258.8 258.9 257.8 260.9 0.77 3 935 644 -15.5 -18.1 80 2.6 -16.0 330 12 262.7 262.8 261.3 265.4 0.98 4 925 725 -15.5 -18.0 81 2.5 -16.0 340 13 263.5 263.6 261.9 266.2 1.00 5 892 999 -14.9 -17.0 84 2.1 -15.3 336 13 266.8 267.0 264.6 270.0 1.13 6 850 1363 -16.3 -18.2 85 1.9 -16.7 330 13 269.1 269.2 266.1 272.1 1.07 7 700 2802 -23.7 -26.1 81 2.4 -24.0 305 9 276.2 276.3 270.0 278.2 0.65 8 643 3419 -26.5 -28.9 80 2.4 -26.8 305 8 279.9 279.9 272.1 281.5 0.55 9 500 5190 -38.7 -41.2 77 2.5 -38.8 305 7 285.9 285.9 274.8 286.5 0.21 10 400 6690 -48.1 -50.8 74 2.7 -48.2 285 17 292.5 292.5 278.0 292.8 0.09 11 348 7592 -54.9 -57.8 70 2.9 -54.9 287 15 295.2 295.2 279.2 295.3 0.04 12 300 8530 -59.3 -62.3 68 3.0 -59.3 290 13 301.8 301.8 282.1 301.9 0.03 13 291 8720 -60.7 -63.7 68 3.0 -60.7 295 11 302.4 302.4 282.4 302.5 0.03 14 260 9423 -59.3 -62.3 68 3.0 -59.3 302 12 314.4 314.4 286.9 314.5 0.03 15 250 9670 -57.3 -60.0 71 2.7 -57.3 305 13 320.9 320.9 289.0 321.1 0.05 16 241 9902 -56.3 -59.2 70 2.9 -56.3 307 13 325.8 325.8 290.6 326.0 0.05 17 200 11090 -55.3 -58.4 68 3.1 -55.4 315 13 345.2 345.2 295.6 345.5 0.07 18 150 12920 -55.9 -59.1 67 3.2 -56.0 315 11 373.8 373.8 301.3 374.2 0.09 19 141 13314 -55.5 -58.8 67 3.3 -55.6 315 11 381.1 381.2 302.5 381.6 0.10 20 100 15490 -58.1 -61.6 64 3.5 -58.2 315 13 415.5 415.5 307.2 416.0 0.10 21 70 17720 -61.1 -64.6 63 3.5 -61.2 310 13 453.7 453.7 311.3 454.2 0.09 22 50 19790 -63.1 -66.9 60 3.8 -63.3 280 21 494.8 494.8 314.6 495.4 0.09 23 34 22147 -65.9 -69.6 60 3.7 -66.1 545.1 545.2 317.9 545.8 0.10 TRP 291 8720 -60.7 -63.7 68 3.0 -60.7 295 11 302.4 302.4 282.4 302.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 5050.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 80.87 % Est. max temperature: -3.99 C = 24.82 F Sfc-Lift cond lev (LCL): 968.65 mb = 378.80 m = 1242.76 ft T: -17.33 C 700-500 lapse rate: 6.28 C/km ThetaE index: 0.01 C Layer 1000.0- 948.0 mb Conv cond level (CCL): 733.40 mb = 2456.56 m = 8059.47 ft Mean mixing ratio: 0.90 g/kg Conv temperature: 1.68 C = 35.03 F Cap Strength: 15.49 C Lifted Index: 19.05 C Risk: None Lifted Index @300 mb: 27.63 C Lifted Index @700 mb: 12.84 C Showalter Index: 11.50 C Risk: None Total Totals Index: 42.90 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 20.50 C K Index: 1.80 Risk: None Sweat Index: 33.00 Risk: None Energy Index: 3.04 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 38.08 J/kg Max Up Vert Vel: 8.73 m/s Conv Inhibition (B-): 46816.63 J/kg Cap Strength: 18.91 C Lift Cond Lev (LCL): 915.23 mb = 805.21 m = 2641.72 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 343 at 7 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 1004 110 260 3 3.0 0.5 | 187 7 0.9 7.4 1 1000 140 265 3 3.0 0.3 | 188 7 1.0 7.1 2 925 725 340 13 4.4 -12.2 | 336 6 2.4 -5.4 3 850 1363 330 13 6.5 -11.3 | 315 6 4.5 -4.4 4 700 2802 305 9 7.4 -5.2 | 253 6 5.3 1.7 5 500 5190 305 7 5.7 -4.0 | 233 5 3.7 2.8 6 400 6690 285 17 16.4 -4.4 | 260 15 14.4 2.4 7 300 8530 290 13 12.2 -4.4 | 257 10 10.2 2.4 8 291 8720 295 11 10.0 -4.6 | 255 8 7.9 2.2 9 250 9670 305 13 10.6 -7.5 | 274 9 8.6 -0.6 10 200 11090 315 13 9.2 -9.2 | 288 8 7.2 -2.4 11 150 12920 315 11 7.8 -7.8 | 279 6 5.7 -0.9 12 100 15490 315 13 9.2 -9.2 | 288 8 7.2 -2.4 13 70 17720 310 13 10.0 -8.4 | 281 8 7.9 -1.5 14 50 19790 280 21 20.7 -3.6 | 260 19 18.6 3.2 Wind Parameters Mean winds (0-6000m): 313.4 at 9.5 knts Storm direction: 343.4 at 7.1 knts Shear (0-3000m) pos: 2.1 neg: 1.2 tot: 3.3 10-3/s Storm rel Dir Shear (0-3000m): 63.3 deg Storm rel helicity (0-3000m) pos: 20.2 neg: -12.7 tot: 7.6 m^2/s^2 ave: 2.5 10^-3 m/s^2 rel: 0.25 Storm rel vorticity (0-3000m) horiz: 4.0 stream: 1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 38.11 Bulk Shear: 1.00 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 ------------------------------------------------------------------------------- 500 312 7 232 4| 10.4 0.0 10.4| 16.0 0.0 16.0 32.0 0.96| 11.6 11.2 1000 332 10 306 3| 6.4 0.0 6.4| 20.2 -1.7 18.6 18.6 0.82| 8.1 6.7 1500 331 11 310 4| 4.3 0.7 5.0| 20.2 -4.9 15.3 10.2 0.62| 6.1 3.8 2000 329 11 305 4| 3.2 1.0 4.3| 20.2 -8.2 12.0 6.0 0.44| 5.2 2.3 2500 326 11 299 5| 2.6 1.2 3.8| 20.2 -11.2 9.0 3.6 0.30| 4.6 1.4 3000 324 11 292 5| 2.1 1.2 3.3| 20.2 -12.7 7.6 2.5 0.25| 4.0 1.0 4000 320 10 280 5| 1.6 0.9 2.5| 20.2 -13.6 6.6 1.6 0.21| 3.1 0.7 5000 317 9 271 4| 1.3 0.8 2.1| 20.2 -14.6 5.6 1.1 0.17| 2.6 0.4 6000 313 10 266 5| 1.1 0.8 1.9| 25.2 -14.6 10.6 1.8 0.23| 2.7 0.6 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251031.12.gif