UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120612.upa.cvt Date: 1200Z 6 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 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 66 235 1 SFC 994 108 -34.1 -37.8 69 3.7 -34.3 235 1 239.5 239.5 239.3 239.9 0.15 2 938 515 -33.1 -37.1 67 4.0 -33.3 283 12 244.5 244.5 244.0 245.0 0.17 3 929 583 -31.7 -35.5 69 3.8 -31.9 291 14 246.6 246.6 246.0 247.1 0.20 4 925 614 -29.5 -33.5 68 4.0 -29.7 295 15 249.1 249.2 248.4 249.8 0.24 5 923 629 -28.3 -32.3 68 4.0 -28.6 295 15 250.5 250.6 249.7 251.3 0.28 6 913 708 -26.5 -30.1 72 3.6 -26.8 293 16 253.2 253.2 252.2 254.1 0.34 7 900 812 -26.1 -29.6 72 3.5 -26.4 292 18 254.6 254.7 253.5 255.6 0.36 8 887 917 -23.5 -26.9 74 3.4 -23.9 290 19 258.4 258.4 256.8 259.7 0.48 9 850 1230 -21.7 -24.6 77 2.9 -22.1 285 23 263.4 263.5 261.1 265.1 0.61 10 843 1291 -21.1 -24.1 77 3.0 -21.5 287 22 264.7 264.8 262.1 266.5 0.65 11 836 1353 -20.9 -24.1 75 3.2 -21.4 290 21 265.5 265.6 262.7 267.4 0.65 12 807 1613 -22.3 -27.3 64 5.0 -22.9 300 18 266.7 266.8 263.3 268.2 0.50 13 781 1854 -20.7 -27.7 53 7.0 -21.6 309 15 270.9 271.0 266.3 272.4 0.50 14 739 2261 -22.7 -34.7 33 12.0 -23.9 325 10 273.1 273.1 267.3 273.9 0.27 15 700 2656 -25.9 -33.9 47 8.0 -26.7 340 5 273.8 273.9 267.8 274.8 0.31 16 678 2886 -27.1 -33.1 57 6.0 -27.7 339 5 275.0 275.0 268.7 276.0 0.35 17 500 5010 -41.7 -49.7 42 8.0 -42.0 330 7 282.2 282.2 272.6 282.5 0.08 18 452 5691 -46.1 -54.1 40 8.0 -46.3 341 5 284.9 284.9 274.0 285.1 0.05 19 400 6500 -50.5 -58.5 38 8.0 -50.7 355 3 289.4 289.4 276.4 289.5 0.04 20 388 6698 -51.9 -59.9 38 8.0 -52.0 343 3 290.1 290.1 276.7 290.2 0.03 21 320 7932 -57.1 -65.1 36 8.0 -57.2 265 1 299.3 299.3 281.0 299.4 0.02 22 312 8092 -57.5 -65.5 35 8.0 -57.6 243 3 300.9 300.9 281.7 301.0 0.02 23 300 8340 -57.3 -65.3 36 8.0 -57.4 210 7 304.6 304.6 283.2 304.7 0.02 24 295 8446 -57.5 -65.5 35 8.0 -57.6 211 7 305.8 305.8 283.7 305.8 0.02 25 250 9490 -55.5 -64.5 32 9.0 -55.6 220 5 323.6 323.6 289.9 323.7 0.03 26 214 10485 -52.3 -62.3 29 10.0 -52.5 199 12 343.2 343.2 295.1 343.4 0.04 27 200 10920 -53.5 -64.5 25 11.0 -53.8 190 15 348.0 348.1 296.3 348.2 0.03 28 150 12770 -55.5 -68.5 18 13.0 -55.8 210 17 374.5 374.5 301.4 374.6 0.03 29 100 15340 -57.7 -73.7 11 16.0 -58.0 190 29 416.2 416.2 307.3 416.3 0.02 30 82 16576 -61.3 -77.3 10 16.0 -61.6 198 40 433.2 433.2 309.2 433.3 0.01 31 70 17560 -58.7 -75.7 9 17.0 -59.2 205 48 458.8 458.8 311.7 458.9 0.02 32 51 19537 -61.9 -78.9 9 17.0 -62.3 214 52 494.8 494.8 314.6 494.9 0.02 33 50 19660 -61.3 -79.3 7 18.0 -61.7 215 52 499.0 499.0 314.9 499.1 0.01 34 35 21882 -58.3 -77.3 7 19.0 -59.2 205 65 560.4 560.5 318.7 560.6 0.03 35 30 22840 -62.5 -80.5 7 18.0 -63.1 200 71 574.3 574.3 319.4 574.4 0.02 36 25 23955 -66.1 -84.1 6 18.0 -66.6 204 75 594.7 594.7 320.3 594.7 0.01 37 24 24203 -66.3 -84.3 6 18.0 -66.8 206 75 601.1 601.1 320.6 601.1 0.01 38 20 25320 -61.7 -80.7 6 19.0 -62.7 210 79 647.3 647.3 322.6 647.5 0.03 39 19 25638 -61.7 -80.7 6 19.0 -62.8 656.9 656.9 323.0 657.1 0.03 40 15 27087 -65.9 -84.9 5 19.0 -66.7 688.9 688.9 324.1 689.0 0.02 41 15 27087 -63.1 -82.1 6 19.0 -64.2 698.2 698.2 324.4 698.4 0.03 TRP 320 7932 -57.1 -65.1 36 8.0 -57.2 265 1 299.3 299.3 281.0 299.4 0.02 WND Sounding variables and indices 1000-500 mb thick: 4944.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 55.20 % Est. max temperature: -9.12 C = 15.59 F Sfc-Lift cond lev (LCL): 932.82 mb = 554.36 m = 1818.74 ft T: -32.30 C 700-500 lapse rate: 6.71 C/km ThetaE index: 0.00 C Layer 994.0-77061766818325623606345728.0 mb Conv cond level (CCL): 994.00 mb = 108.17 m = 354.87 ft Mean mixing ratio: 0.22 g/kg Conv temperature: -33.74 C = -28.73 F Cap Strength: 25.32 C Lifted Index: 29.06 C Risk: None Lifted Index @300 mb: 40.94 C Lifted Index @700 mb: 24.53 C Showalter Index: 14.09 C Risk: None Total Totals Index: 37.10 C Risk: None Vertical Totals Index: 20.00 C Cross Totals Index: 17.10 C K Index: -12.60 Risk: None Sweat Index: 53.00 Risk: None Energy Index: 3.70 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 71.33 J/kg Max Up Vert Vel: 11.94 m/s Conv Inhibition (B-): 63520.33 J/kg Cap Strength: 29.01 C Lift Cond Lev (LCL): 893.09 mb = 867.59 m = 2846.40 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 338 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 ---------------------------------------------------------- 0 994 108 235 1 0.8 0.6 | 166 7 -1.8 7.0 1 925 614 295 15 13.6 -6.3 | 270 11 11.0 0.1 2 850 1230 285 23 22.2 -6.0 | 269 20 19.6 0.5 3 700 2656 340 5 1.7 -4.7 | 153 2 -0.9 1.7 4 500 5010 330 7 3.5 -6.1 | 249 1 0.9 0.3 5 400 6500 355 3 0.3 -3.0 | 146 4 -2.3 3.4 6 320 7932 265 1 1.0 0.1 | 166 7 -1.6 6.5 7 300 8340 210 7 3.5 6.1 | 184 13 0.9 12.5 8 250 9490 220 5 3.2 3.8 | 184 10 0.6 10.2 9 200 10920 190 15 2.6 14.8 | 180 21 0.0 21.2 10 150 12770 210 17 8.5 14.7 | 196 22 5.9 21.1 11 100 15340 190 29 5.0 28.6 | 184 35 2.5 35.0 12 70 17560 205 48 20.3 43.5 | 200 53 17.7 49.9 13 50 19660 215 52 29.8 42.6 | 209 56 27.2 49.0 14 30 22840 200 71 24.3 66.7 | 197 76 21.7 73.1 15 20 25320 210 79 39.5 68.4 | 206 83 36.9 74.8 Wind Parameters Mean winds (0-6000m): 308.1 at 9.2 knts Storm direction: 338.1 at 6.9 knts Shear (0-3000m) pos: 1.4 neg: 1.2 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): -7.7 deg Storm rel helicity (0-3000m) pos: 61.7 neg: -2.7 tot: 59.0 m^2/s^2 ave: 19.7 10^-3 m/s^2 rel: 0.41 Storm rel vorticity (0-3000m) horiz: 8.3 stream: 3.4 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 71.03 Bulk Shear: 1.00 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 ------------------------------------------------------------------------------- 500 292 8 234 6| 14.8 0.0 14.8| 37.7 0.0 37.7 75.4 0.97| 17.0 16.5 1000 291 13 259 10| 7.4 3.6 11.0| 39.0 -1.2 37.8 37.8 0.69| 12.1 8.3 1500 290 16 265 12| 4.3 2.4 6.6| 54.5 -2.3 52.2 34.8 0.61| 10.9 6.7 2000 293 15 268 12| 2.4 1.8 4.2| 61.4 -2.3 59.1 29.5 0.55| 10.3 5.7 2500 292 14 264 11| 1.6 1.4 3.1| 61.7 -2.7 59.0 23.6 0.42| 9.7 4.1 3000 295 13 263 9| 1.4 1.2 2.6| 61.7 -2.7 59.0 19.7 0.41| 8.3 3.4 4000 300 11 262 7| 1.0 1.0 2.0| 61.9 -2.7 59.2 14.8 0.42| 6.3 2.6 5000 305 10 263 6| 0.8 0.8 1.7| 62.1 -2.8 59.3 11.9 0.42| 5.2 2.2 6000 308 9 261 5| 0.8 0.7 1.5| 62.1 -3.2 58.9 9.8 0.37| 4.6 1.7 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251206.12.gif