UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101912.upa.cvt Date: 1200Z 19 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 19 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 1014 115 -2.1 -5.7 76 3.6 -3.3 305 3 270.0 270.4 269.1 276.7 2.46 1 1000 225 -2.7 -7.0 72 4.3 -4.1 325 7 270.5 270.8 269.1 276.6 2.26 2 925 839 -5.7 -9.1 77 3.4 -6.7 355 21 273.5 273.8 270.7 279.2 2.07 3 850 1500 -8.3 -11.0 81 2.7 -9.1 345 21 277.5 277.8 272.9 283.0 1.94 4 826 1722 -9.9 -14.1 71 4.2 -11.0 346 23 278.0 278.3 272.6 282.5 1.55 5 806 1913 -8.7 -11.3 81 2.6 -9.5 346 24 281.3 281.6 275.1 287.0 2.00 6 768 2287 -9.9 -11.5 88 1.6 -10.4 348 27 283.9 284.2 276.6 289.9 2.06 7 700 3000 -13.1 -16.8 74 3.7 -14.0 350 33 288.0 288.2 277.9 292.4 1.46 8 633 3754 -18.9 -23.8 65 4.9 -19.8 351 34 289.8 289.9 277.9 292.5 0.88 9 628 3813 -19.3 -24.1 66 4.8 -20.2 352 35 290.0 290.1 278.0 292.7 0.87 10 510 5329 -27.9 -30.9 75 3.0 -28.3 355 38 297.3 297.4 281.0 299.2 0.57 11 500 5470 -28.9 -32.2 73 3.3 -29.3 355 38 297.8 297.9 281.1 299.5 0.51 12 400 7030 -40.3 -43.6 71 3.3 -40.5 355 46 302.6 302.6 282.7 303.3 0.20 13 300 8940 -53.3 -56.7 66 3.4 -53.4 360 48 310.2 310.2 285.5 310.4 0.06 14 296 9026 -54.1 -57.6 65 3.5 -54.2 0 48 310.3 310.3 285.5 310.5 0.05 15 250 10090 -59.5 -62.9 64 3.4 -59.6 5 42 317.6 317.6 288.0 317.7 0.03 16 233 10531 -61.7 -64.8 66 3.1 -61.7 5 40 320.7 320.7 289.0 320.8 0.03 17 203 11388 -62.5 -65.7 65 3.2 -62.6 5 40 332.4 332.4 292.4 332.5 0.03 18 200 11480 -61.9 -65.0 66 3.1 -61.9 5 40 334.7 334.7 293.0 334.9 0.03 19 189 11831 -58.9 -62.5 63 3.6 -59.0 5 38 345.0 345.0 295.6 345.2 0.05 20 150 13280 -58.3 -62.3 60 4.0 -58.4 5 31 369.6 369.6 300.5 369.9 0.06 21 100 15820 -59.5 -64.5 52 5.0 -59.6 10 19 412.8 412.8 306.9 413.1 0.07 22 88 16623 -58.1 -64.1 46 6.0 -58.3 6 17 430.9 431.0 309.0 431.4 0.08 23 70 18060 -59.7 -67.7 35 8.0 -60.0 360 13 456.7 456.7 311.5 457.0 0.06 24 58 19232 -61.1 -69.1 34 8.0 -61.4 478.7 478.8 313.4 479.1 0.06 25 51 20034 -59.1 -68.1 30 9.0 -59.5 501.4 501.4 315.1 501.9 0.08 TRP 233 10531 -61.7 -64.8 66 3.1 -61.7 5 40 320.7 320.7 289.0 320.8 0.03 WND Sounding variables and indices 1000-500 mb thick: 5245.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.34 inches Sfc-500 mean rel hum: 74.71 % Est. max temperature: 4.63 C = 40.34 F Sfc-Lift cond lev (LCL): 958.22 mb = 561.15 m = 1841.01 ft T: -4.34 C 700-500 lapse rate: 6.40 C/km ThetaE index: 0.45 C Layer 826.0- 806.0 mb Conv cond level (CCL): 735.86 mb = 2615.83 m = 8582.00 ft Mean mixing ratio: 2.18 g/kg Conv temperature: 13.77 C = 56.78 F Cap Strength: 16.38 C Lifted Index: 16.67 C Risk: None Lifted Index @300 mb: 22.91 C Lifted Index @700 mb: 11.14 C Showalter Index: 12.68 C Risk: None Total Totals Index: 38.50 C Risk: None Vertical Totals Index: 20.60 C Cross Totals Index: 17.90 C K Index: 5.90 Risk: None Sweat Index: 80.00 Risk: None Energy Index: 3.46 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 6.90 J/kg Max Up Vert Vel: 3.71 m/s Conv Inhibition (B-): 31739.25 J/kg Cap Strength: 16.48 C Lift Cond Lev (LCL): 906.36 mb = 998.15 m = 3274.74 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 21 at 22 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 1014 115 305 3 2.5 -1.7 | 209 22 10.6 19.0 1 1000 225 325 7 4.0 -5.7 | 219 19 12.2 15.0 2 925 839 355 21 1.8 -20.9 | 271 10 10.0 -0.2 3 850 1500 345 21 5.4 -20.3 | 268 14 13.6 0.4 4 700 3000 350 33 5.7 -32.5 | 310 18 13.9 -11.8 5 500 5470 355 38 3.3 -37.9 | 326 21 11.5 -17.1 6 400 7030 355 46 4.0 -45.8 | 334 28 12.2 -25.1 7 300 8940 360 48 -0.0 -48.0 | 343 28 8.1 -27.3 8 250 10090 5 42 -3.7 -41.8 | 348 22 4.5 -21.1 9 233 10531 5 40 -3.5 -39.8 | 346 20 4.7 -19.1 10 200 11480 5 40 -3.5 -39.8 | 346 20 4.7 -19.1 11 150 13280 5 31 -2.7 -30.9 | 332 12 5.4 -10.2 12 100 15820 10 19 -3.3 -18.7 | 248 5 4.8 2.0 13 70 18060 360 13 -0.0 -13.0 | 227 11 8.1 7.7 Wind Parameters Mean winds (0-6000m): 351.5 at 29.7 knts Storm direction: 21.5 at 22.3 knts Shear (0-3000m) pos: 5.2 neg: 0.4 tot: 5.6 10-3/s Storm rel Dir Shear (0-3000m): 102.0 deg Storm rel helicity (0-3000m) pos: 115.0 neg: -1.5 tot: 113.5 m^2/s^2 ave: 37.8 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 6.1 stream: 4.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.13 Bulk Shear: 53.95 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 ------------------------------------------------------------------------------- 500 336 10 227 17| 14.1 0.0 14.1| 53.7 0.0 53.7 107.4 0.82| 14.4 11.8 1000 349 15 241 13| 9.8 0.0 9.8| 69.1 -0.5 68.7 68.7 0.77| 10.9 8.4 1500 348 17 251 12| 6.5 0.8 7.3| 72.1 -1.5 70.6 47.1 0.69| 8.3 5.8 2000 348 19 259 12| 5.9 0.6 6.5| 86.7 -1.5 85.2 42.6 0.73| 7.3 5.3 2500 348 21 267 13| 5.6 0.5 6.1|101.8 -1.5 100.3 40.1 0.75| 6.6 5.0 3000 348 22 276 13| 5.2 0.4 5.6|115.0 -1.5 113.5 37.8 0.76| 6.1 4.7 4000 349 25 288 14| 4.2 0.3 4.5|125.8 -1.5 124.3 31.1 0.77| 4.9 3.8 5000 350 28 297 14| 3.6 0.2 3.8|137.1 -1.5 135.6 27.1 0.78| 4.2 3.3 6000 351 30 305 15| 3.1 0.3 3.5|149.9 -1.5 148.4 24.7 0.76| 3.8 2.9 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251019.12.gif