UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120600.upa.cvt Date: 0000Z 6 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 6 DEC 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 ------------------------------------------------------------------------------- 0 1000 18 SFC 987 111 -31.5 -34.8 73 3.3 -31.7 260 3 242.6 242.6 242.3 243.1 0.20 2 976 190 -29.9 -33.8 69 3.9 -30.2 270 7 244.9 245.0 244.6 245.6 0.22 3 956 338 -30.5 -34.2 70 3.7 -30.7 290 15 245.8 245.8 245.4 246.4 0.22 4 950 383 -24.1 -28.1 69 4.0 -24.5 295 17 252.7 252.8 252.0 253.8 0.40 5 927 563 -22.3 -25.8 73 3.5 -22.7 318 26 256.3 256.4 255.2 257.7 0.50 6 925 579 -22.3 -25.7 74 3.4 -22.7 320 27 256.5 256.6 255.4 257.9 0.51 7 850 1200 -22.5 -25.8 74 3.3 -22.9 315 23 262.6 262.7 260.3 264.1 0.55 8 849 1209 -22.5 -25.8 74 3.3 -22.9 315 23 262.7 262.8 260.4 264.2 0.55 9 801 1634 -24.7 -28.0 74 3.3 -25.1 333 18 264.7 264.8 261.8 266.1 0.48 10 790 1735 -24.5 -27.9 73 3.4 -24.9 338 17 266.0 266.1 262.8 267.4 0.49 11 756 2056 -23.1 -29.1 58 6.0 -23.8 351 13 270.9 271.0 266.2 272.2 0.46 12 700 2618 -25.1 -34.1 43 9.0 -26.0 15 7 274.7 274.7 268.4 275.6 0.30 13 685 2775 -25.7 -35.7 39 10.0 -26.6 17 7 275.7 275.8 269.0 276.6 0.27 14 630 3375 -29.7 -43.7 24 14.0 -30.6 23 6 277.8 277.9 270.1 278.3 0.13 15 543 4415 -37.3 -48.3 31 11.0 -37.8 34 4 280.9 280.9 271.8 281.2 0.09 16 500 4980 -40.3 -48.3 42 8.0 -40.6 40 3 283.9 283.9 273.6 284.2 0.10 17 441 5831 -45.3 -52.3 45 7.0 -45.5 6 2 288.0 288.0 275.7 288.2 0.07 18 400 6480 -49.3 -56.3 44 7.0 -49.4 340 1 290.9 290.9 277.2 291.1 0.05 19 356 7233 -54.1 -62.1 37 8.0 -54.2 277 3 294.3 294.3 278.8 294.4 0.03 20 300 8320 -56.9 -64.9 36 8.0 -57.0 185 5 305.1 305.1 283.5 305.2 0.02 21 294 8448 -57.3 -65.3 36 8.0 -57.4 175 5 306.3 306.3 284.0 306.4 0.02 22 269 9012 -54.5 -62.5 37 8.0 -54.6 167 7 318.3 318.3 288.2 318.4 0.03 23 250 9480 -55.1 -63.1 36 8.0 -55.2 160 9 324.1 324.2 290.0 324.3 0.03 24 200 10920 -54.3 -64.3 28 10.0 -54.5 180 9 346.8 346.8 296.0 346.9 0.03 25 182 11521 -53.7 -64.7 25 11.0 -53.9 190 12 357.2 357.2 298.2 357.4 0.04 26 150 12750 -55.7 -67.7 21 12.0 -56.0 210 19 374.1 374.1 301.3 374.2 0.03 27 100 15310 -58.7 -72.7 15 14.0 -59.0 200 27 414.3 414.3 307.0 414.4 0.02 28 70 17530 -60.7 -74.7 14 14.0 -61.0 215 40 454.5 454.5 311.3 454.6 0.02 29 50 19610 -63.7 -78.7 11 15.0 -64.0 215 44 493.4 493.4 314.5 493.5 0.02 30 49 19734 -63.5 -78.5 11 15.0 -63.8 215 45 496.7 496.7 314.7 496.8 0.02 31 30 22750 -63.1 -79.1 10 16.0 -63.7 205 71 572.6 572.6 319.3 572.8 0.03 32 26 23629 -62.9 -78.9 10 16.0 -63.6 207 78 597.1 597.1 320.5 597.3 0.03 33 20 25230 -66.1 -82.1 9 16.0 -66.7 210 91 633.8 633.9 322.0 634.0 0.02 34 19 25541 -66.5 -82.5 9 16.0 -67.1 642.0 642.0 322.4 642.1 0.02 35 15 26996 -59.5 -76.5 9 17.0 -61.1 710.1 710.2 324.8 710.8 0.08 36 13 27887 -61.6 -78.6 9 17.0 -63.0 200 103 732.7 732.7 325.4 733.3 0.06 37 12 28382 -62.7 -79.7 8 17.0 -64.1 745.6 745.6 325.8 746.1 0.06 TRP 294 8448 -57.3 -65.3 36 8.0 -57.4 175 5 306.3 306.3 284.0 306.4 0.02 WND 13 27887 -61.6 -78.6 9 17.0 -63.0 200 103 732.7 732.7 325.4 733.3 0.06 Sounding variables and indices 1000-500 mb thick: 4962.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 49.52 % Est. max temperature: -10.96 C = 12.26 F Sfc-Lift cond lev (LCL): 933.09 mb = 515.07 m = 1689.84 ft T: -22.78 C 700-500 lapse rate: 6.44 C/km ThetaE index: 0.00 C Layer 987.0-6977149140605635270305172684800.0 mb Conv cond level (CCL): 987.00 mb = 110.76 m = 363.38 ft Mean mixing ratio: 0.40 g/kg Conv temperature: -27.59 C = -17.66 F Cap Strength: 22.74 C Lifted Index: 24.72 C Risk: None Lifted Index @300 mb: 36.36 C Lifted Index @700 mb: 19.12 C Showalter Index: 16.31 C Risk: None Total Totals Index: 32.30 C Risk: None Vertical Totals Index: 17.80 C Cross Totals Index: 14.50 C K Index: -17.00 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 4.28 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 78.23 J/kg Max Up Vert Vel: 12.51 m/s Conv Inhibition (B-): 62641.41 J/kg Cap Strength: 24.68 C Lift Cond Lev (LCL): 890.29 mb = 859.87 m = 2821.05 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 7 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 ---------------------------------------------------------- 0 987 111 260 3 3.0 0.5 | 206 9 3.8 7.6 1 925 579 320 27 17.4 -20.7 | 307 23 18.2 -13.6 2 850 1200 315 23 16.3 -16.3 | 298 19 17.1 -9.2 3 700 2618 15 7 -1.8 -6.8 | 110 1 -1.0 0.3 4 500 4980 40 3 -1.9 -2.3 | 167 5 -1.1 4.8 5 400 6480 340 1 0.3 -0.9 | 191 6 1.2 6.2 6 300 8320 185 5 0.4 5.0 | 186 12 1.3 12.1 7 294 8448 175 5 -0.4 5.0 | 182 12 0.4 12.1 8 250 9480 160 9 -3.1 8.5 | 172 16 -2.2 15.6 9 200 10920 180 9 0.0 9.0 | 183 16 0.8 16.1 10 150 12750 210 19 9.5 16.5 | 204 26 10.3 23.6 11 100 15310 200 27 9.2 25.4 | 197 34 10.1 32.5 12 70 17530 215 40 22.9 32.8 | 211 46 23.8 39.9 13 50 19610 215 44 25.2 36.0 | 211 50 26.1 43.2 14 30 22750 205 71 30.0 64.3 | 203 78 30.8 71.5 15 20 25230 210 91 45.5 78.8 | 208 98 46.3 85.9 Wind Parameters Mean winds (0-6000m): 336.7 at 9.5 knts Storm direction: 6.7 at 7.2 knts Shear (0-3000m) pos: 1.8 neg: 0.6 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): -70.8 deg Storm rel helicity (0-3000m) pos: 135.1 neg: -15.8 tot: 119.4 m^2/s^2 ave: 39.8 10^-3 m/s^2 rel: 0.62 Storm rel vorticity (0-3000m) horiz: 9.8 stream: 6.1 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 10.07 Bulk Shear: 7.77 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 ------------------------------------------------------------------------------- 500 315 16 289 13| 26.1 0.0 26.1|103.6 0.0 103.6 207.2 0.88| 30.0 26.3 1000 317 20 298 17| 13.1 1.9 15.0|103.6 -14.2 89.4 89.4 0.70| 16.9 11.9 1500 318 21 300 17| 7.3 1.3 8.6|122.8 -15.8 107.0 71.3 0.66| 14.1 9.3 2000 322 19 302 15| 4.3 0.9 5.3|132.4 -15.8 116.7 58.3 0.63| 12.7 8.0 2500 322 17 300 13| 2.4 0.8 3.1|134.9 -15.8 119.1 47.6 0.62| 11.5 7.2 3000 325 16 301 11| 1.8 0.6 2.5|135.1 -15.8 119.4 39.8 0.62| 9.8 6.1 4000 331 13 301 8| 1.2 0.5 1.6|135.8 -15.8 120.0 30.0 0.62| 7.6 4.7 5000 335 11 298 6| 0.8 0.4 1.3|137.1 -15.8 121.4 24.3 0.62| 6.3 3.9 6000 337 10 290 5| 0.7 0.4 1.1|139.3 -15.8 123.6 20.6 0.62| 5.4 3.4 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251206.00.gif