UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100812.upa.cvt Date: 1200Z 8 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 8 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 1012 112 -6.5 -10.0 76 3.5 -7.5 355 1 265.7 266.0 265.0 270.5 1.76 1 1000 205 -7.1 -11.4 71 4.3 -8.2 10 5 266.0 266.3 264.9 270.4 1.60 2 925 807 -11.7 -15.9 71 4.2 -12.6 15 23 267.3 267.5 265.1 270.7 1.19 3 850 1448 -16.3 -19.4 77 3.1 -16.9 40 23 269.1 269.2 265.9 271.8 0.97 4 789 2004 -20.9 -23.9 77 3.0 -21.4 42 28 269.9 270.1 266.0 272.0 0.70 5 700 2880 -25.7 -28.4 78 2.7 -26.0 45 36 274.0 274.1 268.4 275.6 0.53 6 661 3293 -27.7 -30.0 81 2.3 -27.9 45 36 276.3 276.4 269.8 277.8 0.48 7 610 3865 -31.1 -34.1 75 3.0 -31.4 45 36 278.8 278.9 271.1 279.9 0.35 8 500 5240 -42.3 -45.7 69 3.4 -42.5 45 35 281.5 281.5 272.2 281.9 0.13 9 468 5683 -45.9 -49.4 68 3.5 -46.0 43 37 282.4 282.4 272.7 282.7 0.09 10 403 6671 -48.9 -52.7 64 3.8 -49.0 40 40 290.8 290.8 277.2 291.1 0.07 11 400 6720 -48.9 -52.7 64 3.8 -49.0 40 40 291.4 291.4 277.5 291.7 0.07 12 346 7677 -47.5 -52.2 58 4.7 -47.7 43 33 305.7 305.7 283.8 306.0 0.09 13 300 8620 -48.1 -54.1 50 6.0 -48.3 45 27 317.6 317.6 288.1 317.9 0.08 14 250 9820 -48.5 -57.5 34 9.0 -48.8 45 21 334.0 334.0 292.9 334.2 0.06 15 200 11280 -49.3 -61.3 23 12.0 -49.7 40 19 354.7 354.7 297.7 354.9 0.05 16 175 12153 -50.5 -64.5 18 14.0 -51.0 45 16 366.5 366.5 299.9 366.7 0.04 17 150 13160 -50.1 -66.1 14 16.0 -50.7 50 13 383.7 383.8 302.9 383.9 0.04 18 100 15800 -51.9 -70.9 8 19.0 -52.6 15 7 427.4 427.5 308.6 427.6 0.03 19 70 18100 -53.7 -74.7 6 21.0 -54.5 260 3 469.5 469.5 312.6 469.6 0.02 20 50 20260 -53.5 -75.5 5 22.0 -54.6 220 5 517.4 517.4 316.1 517.6 0.03 21 36 22378 -53.9 -77.9 4 24.0 -55.4 220 14 567.3 567.3 319.0 567.5 0.03 22 30 23560 -50.7 -74.7 4 24.0 -53.0 220 19 606.4 606.4 320.9 606.8 0.05 23 22 25605 -45.9 -71.9 4 26.0 -50.3 216 32 677.0 677.0 323.7 677.9 0.11 24 20 26240 -45.9 -71.9 4 26.0 -50.5 215 36 695.7 695.7 324.3 696.7 0.12 25 17 27324 -45.1 -71.1 4 26.0 -50.5 731.3 731.4 325.4 732.7 0.15 TRP 403 6671 -48.9 -52.7 64 3.8 -49.0 40 40 290.8 290.8 277.2 291.1 0.07 WND Sounding variables and indices 1000-500 mb thick: 5035.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.16 inches Sfc-500 mean rel hum: 74.87 % Est. max temperature: -3.44 C = 25.80 F Sfc-Lift cond lev (LCL): 957.21 mb = 542.69 m = 1780.44 ft T: -9.68 C 700-500 lapse rate: 7.03 C/km ThetaE index: 0.12 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 875.63 mb = 1222.76 m = 4011.63 ft Mean mixing ratio: 1.40 g/kg Conv temperature: -3.76 C = 25.23 F Cap Strength: 7.73 C Lifted Index: 9.13 C Risk: None Lifted Index @300 mb: 33.33 C Lifted Index @700 mb: 4.34 C Showalter Index: 8.13 C Risk: None Total Totals Index: 48.90 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.00 C Cross Totals Index: 22.90 C K Index: 3.90 Risk: None Sweat Index: 81.00 Risk: None Energy Index: 2.10 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 3.31 J/kg Max Up Vert Vel: 2.57 m/s Conv Inhibition (B-): 62941.80 J/kg Cap Strength: 9.00 C Lift Cond Lev (LCL): 899.89 mb = 1015.60 m = 3331.98 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 72 at 23 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 1012 112 355 1 0.1 -1.0 | 254 23 21.8 6.2 1 1000 205 10 5 -0.9 -4.9 | 264 21 20.8 2.3 2 925 807 15 23 -6.0 -22.2 | 314 22 15.8 -15.0 3 850 1448 40 23 -14.8 -17.6 | 326 13 6.9 -10.4 4 700 2880 45 36 -25.5 -25.5 | 12 19 -3.7 -18.2 5 500 5240 45 35 -24.7 -24.7 | 10 18 -3.0 -17.5 6 403 6671 40 40 -25.7 -30.6 | 10 24 -4.0 -23.4 7 400 6720 40 40 -25.7 -30.6 | 10 24 -4.0 -23.4 8 300 8620 45 27 -19.1 -19.1 | 348 12 2.6 -11.9 9 250 9820 45 21 -14.8 -14.8 | 318 10 6.9 -7.6 10 200 11280 40 19 -12.2 -14.6 | 308 12 9.5 -7.3 11 150 13160 50 13 -10.0 -8.4 | 276 12 11.7 -1.1 12 100 15800 15 7 -1.8 -6.8 | 269 20 19.9 0.4 13 70 18100 260 3 3.0 0.5 | 253 26 24.7 7.7 14 50 20260 220 5 3.2 3.8 | 246 27 24.9 11.0 15 30 23560 220 19 12.2 14.6 | 237 40 33.9 21.8 16 20 26240 215 36 20.6 29.5 | 229 56 42.4 36.7 Wind Parameters Mean winds (0-6000m): 41.6 at 30.5 knts Storm direction: 71.6 at 22.9 knts Shear (0-3000m) pos: 6.0 neg: 0.0 tot: 6.0 10-3/s Storm rel Dir Shear (0-3000m): 117.4 deg Storm rel helicity (0-3000m) pos: 178.6 neg: -0.2 tot: 178.4 m^2/s^2 ave: 59.5 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 7.7 stream: 6.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.05 Bulk Shear: 67.80 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 12 10 276 20| 16.7 0.0 16.7| 84.9 0.0 84.9 169.8 0.97| 16.7 16.2 1000 17 16 295 19| 11.4 0.0 11.4|126.5 0.0 126.5 126.5 0.87| 13.8 12.0 1500 25 18 304 17| 8.2 0.0 8.2|138.6 0.0 138.6 92.4 0.80| 11.4 9.1 2000 30 20 312 15| 7.3 0.0 7.3|153.9 0.0 153.9 76.9 0.82| 9.8 8.0 2500 34 23 322 15| 6.8 0.0 6.8|169.8 0.0 169.8 67.9 0.82| 8.8 7.2 3000 37 25 331 14| 6.0 0.0 6.0|178.6 -0.2 178.4 59.5 0.81| 7.7 6.3 4000 40 27 343 15| 4.5 0.1 4.6|178.6 -1.4 177.3 44.3 0.80| 5.9 4.7 5000 41 29 350 15| 3.6 0.1 3.7|178.6 -2.5 176.1 35.2 0.79| 4.7 3.7 6000 42 30 355 16| 3.0 0.2 3.3|179.0 -2.7 176.2 29.4 0.73| 4.3 3.1 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251008.12.gif