UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101500.upa.cvt Date: 0000Z 15 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 15 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 1015 111 -4.5 -6.0 89 1.5 -5.0 300 3 267.5 267.9 267.3 274.0 2.40 1 1000 228 -5.3 -7.9 82 2.6 -6.1 330 7 267.9 268.2 267.1 273.6 2.10 2 925 837 -7.7 -9.7 86 2.0 -8.3 5 13 271.4 271.8 269.2 276.9 1.98 3 922 862 -7.7 -9.7 86 2.0 -8.3 6 13 271.7 272.0 269.4 277.2 1.98 4 856 1445 -4.7 -5.8 92 1.1 -5.1 23 13 280.7 281.2 276.0 288.8 2.89 5 850 1500 -4.9 -6.0 92 1.1 -5.3 25 13 281.0 281.5 276.2 289.1 2.87 6 700 3008 -11.1 -13.3 84 2.2 -11.8 20 15 290.2 290.5 279.6 296.1 1.96 7 674 3297 -12.9 -15.0 84 2.1 -13.5 21 15 291.3 291.6 279.8 296.7 1.77 8 500 5500 -28.9 -31.4 79 2.5 -29.2 25 13 297.8 297.9 281.1 299.6 0.55 9 429 6578 -37.1 -40.4 71 3.3 -37.4 25 12 300.7 300.7 282.0 301.6 0.26 10 400 7060 -39.9 -43.5 68 3.6 -40.1 25 11 303.1 303.2 283.0 303.8 0.20 11 394 7163 -40.5 -44.0 69 3.5 -40.7 25 11 303.7 303.7 283.1 304.4 0.20 12 300 8960 -54.9 -58.6 63 3.7 -55.0 30 15 308.0 308.0 284.6 308.1 0.05 13 276 9490 -58.9 -62.8 61 3.9 -58.9 32 15 309.6 309.6 285.2 309.7 0.03 14 250 10110 -61.5 -65.1 62 3.6 -61.6 35 15 314.6 314.6 287.0 314.7 0.02 15 231 10596 -63.9 -67.8 59 3.9 -63.9 35 13 318.2 318.2 288.2 318.3 0.02 16 228 10676 -63.9 -67.9 58 4.0 -63.9 34 13 319.4 319.4 288.6 319.4 0.02 17 213 11092 -63.5 -67.5 58 4.0 -63.6 27 13 326.3 326.3 290.7 326.4 0.02 18 200 11480 -60.9 -64.7 61 3.8 -61.0 20 13 336.3 336.3 293.4 336.5 0.03 19 192 11735 -58.5 -62.6 59 4.1 -58.6 18 12 344.1 344.1 295.3 344.3 0.04 20 150 13290 -57.3 -62.1 54 4.8 -57.4 5 7 371.4 371.4 300.8 371.6 0.06 21 126 14389 -57.7 -63.7 46 6.0 -57.9 5 7 389.6 389.6 303.8 389.9 0.06 22 118 14806 -54.7 -60.7 47 6.0 -54.9 5 7 402.5 402.5 305.6 403.0 0.09 23 100 15860 -56.1 -63.1 41 7.0 -56.4 5 7 419.3 419.4 307.7 419.7 0.08 24 70 18130 -55.3 -65.3 28 10.0 -55.8 265 1 466.1 466.1 312.4 466.6 0.08 25 52 20021 -56.9 -69.9 18 13.0 -57.6 349 3 503.7 503.7 315.2 504.1 0.06 26 50 20270 -56.3 -69.3 18 13.0 -57.1 360 3 510.8 510.8 315.7 511.2 0.07 27 40 21696 -54.1 -70.1 12 16.0 -55.3 294 8 550.0 550.0 318.1 550.5 0.08 28 30 23560 -50.3 -69.3 9 19.0 -52.6 210 15 607.5 607.6 321.0 608.4 0.11 29 24 25020 -47.9 -68.9 7 21.0 -51.3 210 19 654.5 654.6 322.9 655.7 0.15 30 20 26220 -48.1 -70.1 6 22.0 -51.9 210 23 688.9 689.0 324.1 690.2 0.15 31 12 29628 -42.9 -68.9 4 26.0 -50.5 221 34 815.7 815.9 327.7 818.8 0.30 32 10 30850 -46.1 -72.1 4 26.0 -53.0 225 38 847.5 847.6 328.4 849.8 0.23 33 8.3 32100 -42.3 -69.3 4 27.0 -51.7 908.8 909.0 329.7 913.4 0.41 TRP 231 10596 -63.9 -67.8 59 3.9 -63.9 35 13 318.2 318.2 288.2 318.3 0.02 WND Sounding variables and indices 1000-500 mb thick: 5272.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.42 inches Sfc-500 mean rel hum: 84.63 % Est. max temperature: 7.42 C = 45.36 F Sfc-Lift cond lev (LCL): 991.08 mb = 297.99 m = 977.66 ft T: -5.58 C 700-500 lapse rate: 7.14 C/km ThetaE index: 0.41 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 670.60 mb = 3334.31 m = 10939.20 ft Mean mixing ratio: 2.07 g/kg Conv temperature: 19.55 C = 67.19 F Cap Strength: 15.79 C Lifted Index: 18.78 C Risk: None Lifted Index @300 mb: 23.19 C Lifted Index @700 mb: 15.19 C Showalter Index: 7.99 C Risk: None Total Totals Index: 46.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 24.00 C Cross Totals Index: 22.90 C K Index: 15.80 Risk: < 20 % chance of thunderstorms Sweat Index: 39.00 Risk: None Energy Index: 2.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.34 J/kg Max Up Vert Vel: 4.55 m/s Conv Inhibition (B-): 79043.04 J/kg Cap Strength: 18.60 C Lift Cond Lev (LCL): 929.91 mb = 795.66 m = 2610.39 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 49 at 10 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 1015 111 300 3 2.6 -1.5 | 244 11 10.1 4.9 1 1000 228 330 7 3.5 -6.1 | 268 11 11.0 0.4 2 925 837 5 13 -1.1 -13.0 | 316 9 6.4 -6.5 3 850 1500 25 13 -5.5 -11.8 | 339 6 2.0 -5.3 4 700 3008 20 15 -5.1 -14.1 | 343 8 2.4 -7.7 5 500 5500 25 13 -5.5 -11.8 | 339 6 2.0 -5.3 6 400 7060 25 11 -4.6 -10.0 | 321 5 2.9 -3.5 7 300 8960 30 15 -7.5 -13.0 | 360 7 0.0 -6.6 8 250 10110 35 15 -8.6 -12.3 | 11 6 -1.1 -5.9 9 231 10596 35 13 -7.5 -10.6 | 359 4 0.1 -4.2 10 200 11480 20 13 -4.4 -12.2 | 332 7 3.1 -5.8 11 150 13290 5 7 -0.6 -7.0 | 274 7 6.9 -0.5 12 100 15860 5 7 -0.6 -7.0 | 274 7 6.9 -0.5 13 70 18130 265 1 1.0 0.1 | 233 11 8.5 6.5 14 50 20270 360 3 -0.0 -3.0 | 245 8 7.5 3.4 15 30 23560 210 15 7.5 13.0 | 218 25 15.0 19.4 16 20 26220 210 23 11.5 19.9 | 216 32 19.0 26.4 17 10 30850 225 38 26.9 26.9 | 226 48 34.4 33.3 Wind Parameters Mean winds (0-6000m): 19.4 at 13.2 knts Storm direction: 49.4 at 9.9 knts Shear (0-3000m) pos: 2.3 neg: 0.4 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 98.7 deg Storm rel helicity (0-3000m) pos: 42.6 neg: -0.0 tot: 42.6 m^2/s^2 ave: 14.2 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 3.5 stream: 2.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.05 Bulk Shear: 9.87 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 ------------------------------------------------------------------------------- 500 340 8 276 10| 9.5 0.0 9.5| 27.6 0.0 27.6 55.1 0.99| 10.1 10.0 1000 357 10 295 9| 6.4 0.0 6.4| 38.8 0.0 38.8 38.8 0.94| 7.8 7.4 1500 6 11 306 8| 4.5 0.0 4.5| 42.0 0.0 42.0 28.0 0.90| 6.2 5.5 2000 11 12 314 7| 3.4 0.2 3.6| 42.3 0.0 42.3 21.1 0.87| 4.8 4.2 2500 14 12 320 7| 2.7 0.3 3.0| 42.5 0.0 42.5 17.0 0.84| 4.0 3.4 3000 15 13 324 7| 2.3 0.4 2.6| 42.6 -0.0 42.6 14.2 0.81| 3.5 2.8 4000 17 13 329 7| 1.6 0.3 1.9| 42.6 -0.2 42.4 10.6 0.77| 2.7 2.1 5000 18 13 331 7| 1.2 0.2 1.4| 42.6 -0.5 42.0 8.4 0.73| 2.3 1.7 6000 19 13 332 7| 1.0 0.1 1.1| 42.6 -1.5 41.1 6.8 0.67| 2.0 1.3 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251015.00.gif