UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101712.upa.cvt Date: 1200Z 17 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 17 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 1020 110 -11.3 -12.7 89 1.4 -11.6 215 1 260.4 260.6 260.3 264.1 1.41 1 1010 186 -5.5 -6.9 90 1.4 -6.0 247 4 266.9 267.3 266.7 272.9 2.25 2 1000 263 -5.9 -7.1 91 1.2 -6.2 280 7 267.2 267.6 266.9 273.3 2.24 3 963 557 -8.3 -11.4 78 3.1 -9.1 280 11 267.7 268.0 266.2 272.3 1.66 4 925 870 -7.9 -12.9 67 5.0 -9.2 280 15 271.2 271.5 268.3 275.5 1.53 5 910 997 -7.1 -13.1 62 6.0 -8.7 289 14 273.3 273.6 269.7 277.6 1.53 6 907 1023 -7.1 -13.1 62 6.0 -8.7 290 14 273.6 273.8 269.9 277.9 1.53 7 872 1329 -8.7 -13.0 71 4.3 -9.9 311 11 275.0 275.3 270.9 279.6 1.61 8 864 1400 -8.3 -12.8 70 4.5 -9.5 316 10 276.2 276.4 271.6 280.9 1.65 9 850 1527 -7.9 -15.9 53 8.0 -9.9 325 9 277.9 278.1 272.1 281.6 1.30 10 839 1628 -7.3 -19.3 38 12.0 -10.2 327 9 279.5 279.7 272.6 282.5 0.99 11 801 1989 -8.1 -31.1 14 23.0 -12.1 334 10 282.4 282.5 273.2 283.5 0.36 12 786 2135 -9.1 -28.1 20 19.0 -12.6 337 10 282.9 283.0 273.6 284.4 0.48 13 766 2335 -8.5 -29.5 17 21.0 -12.4 341 10 285.6 285.7 275.1 287.0 0.43 14 700 3026 -13.9 -31.9 20 18.0 -16.7 355 11 287.1 287.2 275.8 288.3 0.38 15 687 3168 -14.9 -32.9 20 18.0 -17.6 357 11 287.5 287.6 276.0 288.6 0.35 16 508 5387 -28.1 -46.1 16 18.0 -29.5 33 5 297.4 297.4 280.4 297.8 0.12 17 500 5500 -29.1 -47.1 16 18.0 -30.4 35 5 297.6 297.6 280.4 297.9 0.11 18 400 7060 -40.9 -58.9 13 18.0 -41.5 75 7 301.8 301.8 282.1 302.0 0.03 19 303 8887 -55.3 -69.3 16 14.0 -55.5 65 9 306.5 306.5 284.0 306.6 0.01 20 300 8950 -55.7 -69.7 16 14.0 -55.8 65 9 306.8 306.8 284.1 306.9 0.01 21 250 10100 -62.1 -75.1 16 13.0 -62.2 70 15 313.7 313.7 286.6 313.8 0.01 22 234 10510 -60.1 -73.1 17 13.0 -60.2 63 18 322.8 322.8 289.6 322.8 0.01 23 200 11490 -58.7 -70.7 20 12.0 -58.9 45 25 339.8 339.8 294.3 339.9 0.01 24 150 13300 -58.7 -71.7 17 13.0 -58.9 40 17 368.9 369.0 300.4 369.0 0.02 25 126 14399 -56.3 -70.3 16 14.0 -56.6 36 14 392.2 392.2 304.1 392.3 0.02 26 100 15860 -57.5 -72.5 13 15.0 -57.9 30 9 416.6 416.6 307.3 416.7 0.02 27 70 18110 -58.5 -74.5 11 16.0 -58.9 45 3 459.2 459.2 311.7 459.4 0.02 28 50 20220 -58.7 -76.7 8 18.0 -59.3 280 5 505.2 505.2 315.3 505.3 0.02 29 40 21622 -59.1 -77.1 8 18.0 -59.8 249 8 537.4 537.4 317.4 537.6 0.03 30 31 23240 -54.3 -74.3 7 20.0 -55.9 214 11 591.0 591.1 320.2 591.4 0.05 31 30 23450 -54.5 -74.5 7 20.0 -56.1 210 11 596.1 596.1 320.5 596.4 0.05 32 24 24883 -54.9 -74.9 7 20.0 -56.7 213 17 634.2 634.2 322.1 634.7 0.06 33 20 26060 -51.7 -73.7 5 22.0 -54.5 215 21 677.9 678.0 323.7 678.7 0.09 34 15 27935 -49.5 -72.5 5 23.0 -53.7 743.4 743.4 325.8 744.7 0.14 TRP 250 10100 -62.1 -75.1 16 13.0 -62.2 70 15 313.7 313.7 286.6 313.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5237.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 33.34 % Est. max temperature: 3.71 C = 38.68 F Sfc-Lift cond lev (LCL): 997.14 mb = 285.32 m = 936.08 ft T: -6.08 C 700-500 lapse rate: 6.14 C/km ThetaE index: 1.02 C Layer 963.0- 925.0 mb Conv cond level (CCL): 693.20 mb = 3099.81 m = 10169.85 ft Mean mixing ratio: 1.80 g/kg Conv temperature: 15.80 C = 60.44 F Cap Strength: 20.40 C Lifted Index: 20.39 C Risk: None Lifted Index @300 mb: 23.97 C Lifted Index @700 mb: 14.15 C Showalter Index: 13.54 C Risk: None Total Totals Index: 34.40 C Risk: None Vertical Totals Index: 21.20 C Cross Totals Index: 13.20 C K Index: -12.70 Risk: None Sweat Index: 23.00 Risk: None Energy Index: 3.47 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 21.69 J/kg Max Up Vert Vel: 6.59 m/s Conv Inhibition (B-): 63704.92 J/kg Cap Strength: 20.37 C Lift Cond Lev (LCL): 926.82 mb = 854.75 m = 2804.28 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 12 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 1020 110 215 1 0.6 0.8 | 195 8 1.9 7.3 1 1000 263 280 7 6.9 -1.2 | 237 10 8.2 5.3 2 925 870 280 15 14.8 -2.6 | 256 17 16.1 3.9 3 850 1527 325 9 5.2 -7.4 | 278 7 6.5 -0.9 4 700 3026 355 11 1.0 -11.0 | 333 5 2.3 -4.5 5 500 5500 35 5 -2.9 -4.1 | 147 3 -1.5 2.4 6 400 7060 75 7 -6.8 -1.8 | 131 7 -5.4 4.7 7 300 8950 65 9 -8.2 -3.8 | 112 7 -6.8 2.7 8 250 10100 70 15 -14.1 -5.1 | 96 13 -12.8 1.4 9 200 11490 45 25 -17.7 -17.7 | 56 20 -16.3 -11.2 10 150 13300 40 17 -10.9 -13.0 | 56 12 -9.6 -6.5 11 100 15860 30 9 -4.5 -7.8 | 68 3 -3.2 -1.3 12 70 18110 45 3 -2.1 -2.1 | 170 4 -0.8 4.4 13 50 20220 280 5 4.9 -0.9 | 228 8 6.3 5.6 14 30 23450 210 11 5.5 9.5 | 203 17 6.8 16.0 15 20 26060 215 21 12.0 17.2 | 209 27 13.4 23.7 Wind Parameters Mean winds (0-6000m): 341.5 at 8.8 knts Storm direction: 11.5 at 6.6 knts Shear (0-3000m) pos: 2.0 neg: 0.0 tot: 2.0 10-3/s Storm rel Dir Shear (0-3000m): 140.2 deg Storm rel helicity (0-3000m) pos: 53.9 neg: 0.0 tot: 53.9 m^2/s^2 ave: 18.0 10^-3 m/s^2 rel: 0.67 Storm rel vorticity (0-3000m) horiz: 5.4 stream: 3.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.20 Bulk Shear: 9.84 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 ------------------------------------------------------------------------------- 500 279 8 239 10| 11.5 0.0 11.5| 24.3 0.0 24.3 48.6 0.80| 12.2 9.8 1000 282 11 250 12| 6.5 0.0 6.5| 40.2 0.0 40.2 40.2 0.71| 9.8 7.0 1500 290 11 256 12| 3.3 0.0 3.3| 46.2 0.0 46.2 30.8 0.61| 8.9 5.4 2000 299 10 262 10| 2.7 0.0 2.7| 48.8 0.0 48.8 24.4 0.63| 7.1 4.5 2500 308 10 269 9| 2.3 0.0 2.3| 51.5 0.0 51.5 20.6 0.65| 6.1 4.0 3000 316 10 277 9| 2.0 0.0 2.0| 53.9 0.0 53.9 18.0 0.67| 5.4 3.6 4000 328 10 287 7| 1.2 0.0 1.2| 55.6 0.0 55.6 13.9 0.66| 4.5 3.0 5000 335 10 292 6| 0.7 0.0 0.7| 56.6 0.0 56.6 11.3 0.68| 3.9 2.7 6000 342 9 295 5| 0.6 0.0 0.6| 57.0 -0.8 56.3 9.4 0.63| 3.5 2.2 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251017.12.gif