UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102112.upa.cvt Date: 1200Z 21 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 21 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 1018 113 -10.5 -12.6 85 2.1 -11.0 165 1 261.3 261.5 261.1 265.1 1.42 1 1013 151 -7.9 -9.9 86 2.0 -8.4 180 3 264.3 264.6 264.0 269.0 1.78 2 1012 159 -5.1 -7.2 85 2.1 -5.8 183 3 267.1 267.5 266.7 273.1 2.20 3 1000 252 -4.5 -7.0 83 2.5 -5.3 220 7 268.6 269.0 267.8 274.8 2.26 4 980 411 -4.9 -9.7 69 4.8 -6.3 230 9 269.8 270.1 268.0 274.9 1.86 5 962 557 -3.5 -11.5 54 8.0 -5.8 240 10 272.7 272.9 269.5 277.3 1.65 6 926 858 -3.3 -17.3 33 14.0 -6.9 259 13 275.8 276.0 270.5 278.9 1.06 7 925 867 -3.3 -17.3 33 14.0 -6.9 260 13 275.9 276.1 270.5 279.0 1.06 8 850 1536 -3.5 -24.5 18 21.0 -8.2 315 15 282.5 282.6 273.6 284.4 0.62 9 845 1583 -3.5 -24.5 18 21.0 -8.2 316 15 283.0 283.1 273.9 284.9 0.62 10 841 1620 -3.9 -24.9 18 21.0 -8.5 316 16 282.9 283.0 273.9 284.8 0.60 11 792 2091 -6.7 -13.7 57 7.0 -8.8 322 19 284.8 285.1 276.5 289.8 1.67 12 753 2483 -8.5 -26.5 22 18.0 -12.2 327 22 287.0 287.1 276.0 288.8 0.58 13 700 3045 -12.1 -22.1 43 10.0 -14.3 335 27 289.1 289.2 277.6 292.0 0.93 14 674 3333 -14.3 -22.3 51 8.0 -16.0 336 29 289.8 289.9 278.0 292.7 0.95 15 658 3515 -15.1 -23.1 50 8.0 -16.8 336 30 290.9 291.0 278.4 293.7 0.90 16 603 4170 -17.9 -27.9 41 10.0 -19.7 337 34 295.0 295.1 280.0 297.0 0.64 17 568 4614 -21.5 -36.5 25 15.0 -23.4 338 36 295.8 295.9 279.9 296.8 0.30 18 500 5540 -28.3 -40.3 31 12.0 -29.5 340 42 298.5 298.6 281.0 299.3 0.23 19 400 7100 -40.9 -48.9 42 8.0 -41.3 340 42 301.8 301.9 282.3 302.2 0.11 20 362 7772 -46.3 -53.3 45 7.0 -46.5 342 41 303.4 303.4 282.8 303.6 0.07 21 300 9000 -54.1 -61.1 42 7.0 -54.2 345 40 309.1 309.1 285.0 309.2 0.03 22 289 9237 -55.3 -63.3 36 8.0 -55.4 345 40 310.7 310.7 285.6 310.8 0.03 23 278 9481 -57.7 -64.7 40 7.0 -57.8 345 39 310.7 310.7 285.6 310.8 0.02 24 250 10140 -61.3 -69.3 34 8.0 -61.4 345 38 314.9 314.9 287.1 315.0 0.01 25 208 11263 -67.3 -74.3 36 7.0 -67.4 345 35 322.5 322.5 289.5 322.6 0.01 26 200 11500 -65.7 -73.7 32 8.0 -65.8 340 35 328.7 328.7 291.3 328.8 0.01 27 197 11593 -64.3 -72.3 33 8.0 -64.4 341 34 332.4 332.4 292.4 332.4 0.01 28 150 13280 -60.7 -68.7 34 8.0 -60.8 350 21 365.5 365.5 299.8 365.6 0.02 29 143 13578 -59.1 -67.1 35 8.0 -59.3 350 20 373.3 373.3 301.2 373.5 0.03 30 100 15820 -58.1 -68.1 27 10.0 -58.4 350 13 415.5 415.5 307.2 415.7 0.04 31 70 18060 -59.9 -70.9 22 11.0 -60.2 5 11 456.2 456.2 311.4 456.5 0.04 32 53 19795 -60.5 -72.5 19 12.0 -60.9 492.6 492.6 314.4 492.9 0.04 TRP 208 11263 -67.3 -74.3 36 7.0 -67.4 345 35 322.5 322.5 289.5 322.6 0.01 WND Sounding variables and indices 1000-500 mb thick: 5288.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 38.43 % Est. max temperature: 9.13 C = 48.43 F Sfc-Lift cond lev (LCL): 984.15 mb = 377.65 m = 1239.00 ft T: -4.82 C 700-500 lapse rate: 6.49 C/km ThetaE index: 0.92 C Layer 753.0- 700.0 mb Conv cond level (CCL): 626.42 mb = 3883.97 m = 12742.53 ft Mean mixing ratio: 1.66 g/kg Conv temperature: 21.53 C = 70.75 F Cap Strength: 17.39 C Lifted Index: 18.67 C Risk: None Lifted Index @300 mb: 23.34 C Lifted Index @700 mb: 13.49 C Showalter Index: 12.23 C Risk: None Total Totals Index: 28.60 C Risk: None Vertical Totals Index: 24.80 C Cross Totals Index: 3.80 C K Index: -9.70 Risk: None Sweat Index: 72.00 Risk: None Energy Index: 3.16 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 41.32 J/kg Max Up Vert Vel: 9.09 m/s Conv Inhibition (B-): 33620.89 J/kg Cap Strength: 18.61 C Lift Cond Lev (LCL): 863.31 mb = 1413.10 m = 4636.10 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 2 at 20 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 1018 113 165 1 -0.3 1.0 | 181 21 0.3 20.9 1 1000 252 220 7 4.5 5.4 | 191 26 5.1 25.3 2 925 867 260 13 12.8 2.3 | 211 26 13.4 22.2 3 850 1536 315 15 10.6 -10.6 | 230 15 11.2 9.3 4 700 3045 335 27 11.4 -24.5 | 291 13 12.0 -4.5 5 500 5540 340 42 14.4 -39.5 | 323 25 14.9 -19.5 6 400 7100 340 42 14.4 -39.5 | 323 25 14.9 -19.5 7 300 9000 345 40 10.4 -38.6 | 330 22 10.9 -18.7 8 250 10140 345 38 9.8 -36.7 | 328 20 10.4 -16.8 9 208 11263 345 35 9.1 -33.8 | 325 17 9.6 -13.9 10 200 11500 340 35 12.0 -32.9 | 316 18 12.5 -13.0 11 150 13280 350 21 3.6 -20.7 | 280 4 4.2 -0.8 12 100 15820 350 13 2.3 -12.8 | 202 8 2.8 7.1 13 70 18060 5 11 -1.0 -11.0 | 178 9 -0.4 9.0 Wind Parameters Mean winds (0-6000m): 331.6 at 26.6 knts Storm direction: 1.6 at 19.9 knts Shear (0-3000m) pos: 4.9 neg: 0.0 tot: 4.9 10-3/s Storm rel Dir Shear (0-3000m): 111.4 deg Storm rel helicity (0-3000m) pos: 180.4 neg: 0.0 tot: 180.4 m^2/s^2 ave: 60.1 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 7.6 stream: 6.0 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 0.37 Bulk Shear: 110.22 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 ------------------------------------------------------------------------------- 500 231 7 194 25| 10.7 0.0 10.7| 62.3 0.0 62.3 124.6 0.78| 12.3 9.6 1000 252 10 204 25| 7.3 0.0 7.3|112.1 0.0 112.1 112.1 0.80| 10.7 8.6 1500 273 11 212 23| 5.7 0.0 5.7|133.6 0.0 133.6 89.0 0.70| 10.4 7.3 2000 290 13 219 20| 5.3 0.0 5.3|149.2 0.0 149.2 74.6 0.73| 8.9 6.5 2500 303 15 227 18| 5.0 0.0 5.0|165.0 0.0 165.0 66.0 0.76| 8.1 6.2 3000 312 17 236 15| 4.9 0.0 4.9|180.4 0.0 180.4 60.1 0.79| 7.6 6.0 4000 322 20 252 13| 4.4 0.0 4.4|197.6 0.0 197.6 49.4 0.78| 6.5 5.0 5000 328 23 270 13| 4.2 0.0 4.2|216.4 0.0 216.4 43.3 0.76| 5.8 4.4 6000 332 27 285 14| 3.7 0.0 3.7|225.0 0.0 225.0 37.5 0.75| 5.1 3.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251021.12.gif