UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 18 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 1017 113 -12.5 -14.1 88 1.6 -12.8 235 1 259.4 259.6 259.3 262.8 1.26 1 1010 166 -12.1 -15.1 78 3.0 -12.8 249 3 260.3 260.5 259.8 263.5 1.17 2 1002 227 -7.1 -10.0 80 2.9 -7.9 266 5 265.9 266.2 265.1 270.7 1.78 3 1000 243 -6.7 -9.6 80 2.9 -7.5 270 5 266.5 266.7 265.6 271.4 1.84 4 925 850 -8.9 -10.8 86 1.9 -9.4 280 23 270.2 270.5 268.1 275.2 1.81 5 907 1002 -8.7 -10.8 85 2.1 -9.3 278 20 271.9 272.2 269.3 277.1 1.85 6 900 1062 -9.3 -12.3 79 3.0 -10.1 277 18 271.9 272.2 269.0 276.5 1.65 7 868 1344 -4.5 -18.5 33 14.0 -8.0 272 12 279.8 279.9 272.8 282.8 1.02 8 856 1454 -5.3 -23.3 23 18.0 -9.2 271 10 280.0 280.1 272.3 282.1 0.68 9 850 1509 -5.3 -23.3 23 18.0 -9.3 270 9 280.6 280.7 272.7 282.7 0.69 10 735 2638 -9.9 -30.9 16 21.0 -13.6 304 8 287.5 287.6 276.0 288.7 0.40 11 700 3012 -12.1 -33.1 16 21.0 -15.5 315 7 289.1 289.1 276.7 290.2 0.34 12 655 3516 -15.7 -29.7 29 14.0 -18.0 326 8 290.6 290.7 277.7 292.2 0.50 13 597 4211 -18.3 -34.3 23 16.0 -20.6 341 10 295.4 295.4 279.8 296.5 0.35 14 566 4607 -20.5 -29.5 44 9.0 -22.0 350 11 297.3 297.4 281.0 299.2 0.59 15 500 5510 -28.1 -35.1 51 7.0 -28.9 10 13 298.8 298.8 281.4 300.1 0.39 16 497 5553 -28.1 -35.1 51 7.0 -28.9 11 13 299.3 299.4 281.6 300.6 0.39 17 400 7080 -39.1 -46.1 47 7.0 -39.5 30 19 304.2 304.2 283.3 304.7 0.15 18 332 8324 -49.1 -56.1 44 7.0 -49.3 27 24 307.1 307.1 284.3 307.3 0.06 19 300 8980 -53.7 -60.7 42 7.0 -53.8 25 27 309.7 309.7 285.2 309.8 0.04 20 250 10130 -61.1 -68.1 39 7.0 -61.2 30 29 315.2 315.2 287.2 315.3 0.02 21 236 10486 -63.5 -69.5 44 6.0 -63.6 30 27 316.8 316.8 287.7 316.9 0.01 22 223 10833 -64.7 -71.7 38 7.0 -64.7 30 25 320.2 320.2 288.8 320.2 0.01 23 215 11056 -64.9 -71.9 37 7.0 -65.0 28 24 323.2 323.2 289.8 323.3 0.01 24 211 11171 -63.7 -70.7 38 7.0 -63.8 27 23 326.8 326.8 290.8 326.9 0.01 25 200 11500 -62.9 -69.9 38 7.0 -63.0 25 21 333.2 333.2 292.6 333.2 0.02 26 191 11785 -59.5 -66.5 40 7.0 -59.6 23 20 343.0 343.0 295.1 343.1 0.03 27 150 13300 -58.1 -66.1 35 8.0 -58.3 15 13 370.0 370.0 300.6 370.1 0.04 28 100 15860 -58.1 -69.1 23 11.0 -58.4 25 9 415.5 415.5 307.2 415.6 0.03 29 70 18110 -57.9 -72.9 13 15.0 -58.4 30 3 460.5 460.5 311.8 460.7 0.03 30 50 20220 -58.3 -75.3 10 17.0 -58.9 285 3 506.1 506.1 315.4 506.3 0.03 31 40 21629 -58.5 -77.5 7 19.0 -59.3 252 8 538.9 538.9 317.5 539.1 0.02 32 30 23460 -54.3 -75.3 6 21.0 -55.9 210 15 596.6 596.6 320.5 596.9 0.05 33 29 23677 -53.5 -74.5 6 21.0 -55.3 211 16 604.6 604.6 320.8 605.0 0.05 34 22 25446 -53.5 -76.5 4 23.0 -55.8 218 26 654.3 654.4 322.9 654.8 0.05 35 20 26060 -51.7 -75.7 4 24.0 -54.6 220 29 677.9 678.0 323.7 678.5 0.07 36 11 29987 -46.1 -72.1 4 26.0 -52.7 824.7 824.8 327.9 826.8 0.20 37 10 30619 -47.5 -73.5 3 26.0 -53.8 842.2 842.3 328.2 844.1 0.18 TRP 223 10833 -64.7 -71.7 38 7.0 -64.7 30 25 320.2 320.2 288.8 320.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5267.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 39.35 % Est. max temperature: 7.98 C = 46.36 F Sfc-Lift cond lev (LCL): 990.96 mb = 313.70 m = 1029.20 ft T: -6.96 C 700-500 lapse rate: 6.41 C/km ThetaE index: 0.68 C Layer 856.0- 850.0 mb Conv cond level (CCL): 1010.00 mb = 165.80 m = 543.96 ft Mean mixing ratio: 1.76 g/kg Conv temperature: -9.56 C = 14.79 F Cap Strength: 21.70 C Lifted Index: 21.92 C Risk: None Lifted Index @300 mb: 26.50 C Lifted Index @700 mb: 16.53 C Showalter Index: 13.72 C Risk: None Total Totals Index: 27.60 C Risk: None Vertical Totals Index: 22.80 C Cross Totals Index: 4.80 C K Index: -21.50 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 3.68 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 26.17 J/kg Max Up Vert Vel: 7.23 m/s Conv Inhibition (B-): 59980.27 J/kg Cap Strength: 21.90 C Lift Cond Lev (LCL): 929.97 mb = 808.24 m = 2651.66 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 351 at 8 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 1017 113 235 1 0.8 0.6 | 177 9 -0.5 8.6 1 1000 243 270 5 5.0 -0.0 | 205 9 3.7 8.0 2 925 850 280 23 22.7 -4.0 | 259 22 21.3 4.0 3 850 1509 270 9 9.0 -0.0 | 224 11 7.7 8.0 4 700 3012 315 7 4.9 -4.9 | 230 5 3.6 3.1 5 500 5510 10 13 -2.3 -12.8 | 37 6 -3.6 -4.8 6 400 7080 30 19 -9.5 -16.5 | 52 14 -10.8 -8.4 7 300 8980 25 27 -11.4 -24.5 | 38 21 -12.7 -16.5 8 250 10130 30 29 -14.5 -25.1 | 43 23 -15.8 -17.1 9 223 10833 30 25 -12.5 -21.7 | 45 19 -13.8 -13.6 10 200 11500 25 21 -8.9 -19.0 | 43 15 -10.2 -11.0 11 150 13300 15 13 -3.4 -12.6 | 46 7 -4.7 -4.6 12 100 15860 25 9 -3.8 -8.2 | 88 5 -5.1 -0.2 13 70 18110 30 3 -1.5 -2.6 | 153 6 -2.8 5.4 14 50 20220 285 3 2.9 -0.8 | 192 7 1.6 7.2 15 30 23460 210 15 7.5 13.0 | 196 22 6.2 21.0 16 20 26060 220 29 18.6 22.2 | 210 35 17.3 30.2 Wind Parameters Mean winds (0-6000m): 320.7 at 10.8 knts Storm direction: 350.7 at 8.1 knts Shear (0-3000m) pos: 2.3 neg: 1.2 tot: 3.5 10-3/s Storm rel Dir Shear (0-3000m): 56.6 deg Storm rel helicity (0-3000m) pos: 56.5 neg: -36.8 tot: 19.7 m^2/s^2 ave: 6.6 10^-3 m/s^2 rel: 0.21 Storm rel vorticity (0-3000m) horiz: 7.1 stream: 1.5 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 3.10 Bulk Shear: 8.44 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 ------------------------------------------------------------------------------- 500 274 9 224 10| 15.7 0.0 15.7| 35.9 0.0 35.9 71.9 0.83| 15.8 13.1 1000 278 14 244 14| 7.8 0.7 8.6| 52.9 -14.6 38.3 38.3 0.51| 13.4 6.9 1500 277 14 243 14| 5.2 2.4 7.7| 53.5 -36.5 17.0 11.3 0.22| 12.0 2.6 2000 278 12 240 13| 3.8 1.8 5.6| 55.6 -36.5 19.1 9.5 0.23| 9.6 2.2 2500 280 11 239 12| 2.8 1.5 4.3| 56.2 -36.5 19.7 7.9 0.22| 8.1 1.8 3000 283 11 238 11| 2.3 1.2 3.5| 56.5 -36.8 19.7 6.6 0.21| 7.1 1.5 4000 292 10 242 9| 1.9 0.9 2.8| 59.3 -36.8 22.6 5.6 0.27| 5.9 1.6 5000 305 10 254 7| 1.5 0.7 2.3| 62.5 -36.8 25.7 5.1 0.32| 5.2 1.7 6000 321 11 274 6| 1.4 0.6 2.0| 65.8 -36.8 29.0 4.8 0.33| 4.8 1.6 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251018.00.gif