UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025121100.upa.cvt Date: 0000Z 11 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 11 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 ------------------------------------------------------------------------------- SFC 1001 114 -35.9 -39.4 70 3.5 -36.0 195 1 237.2 237.2 237.1 237.5 0.12 1 1000 121 -33.3 -38.2 61 4.9 -33.5 200 1 239.9 239.9 239.7 240.2 0.14 2 984 235 -30.7 -35.6 62 4.9 -31.0 212 4 243.6 243.6 243.2 244.1 0.19 3 925 671 -33.5 -37.7 66 4.2 -33.7 260 15 245.1 245.1 244.5 245.5 0.16 4 920 709 -33.7 -37.9 66 4.2 -33.9 261 15 245.2 245.3 244.7 245.7 0.16 5 896 896 -31.1 -35.1 68 4.0 -31.3 268 15 249.8 249.8 248.9 250.4 0.22 6 856 1221 -29.7 -33.7 68 4.0 -30.0 278 15 254.5 254.6 253.2 255.3 0.26 7 850 1271 -28.3 -32.3 68 4.0 -28.6 280 15 256.5 256.5 254.9 257.3 0.30 8 848 1288 -27.3 -31.3 69 4.0 -27.6 279 15 257.7 257.8 256.0 258.7 0.33 9 781 1882 -26.1 -29.3 74 3.2 -26.4 241 13 265.1 265.2 262.0 266.4 0.43 10 700 2667 -30.5 -33.9 72 3.4 -30.8 190 11 268.7 268.8 264.4 269.6 0.31 11 521 4705 -43.1 -46.5 69 3.4 -43.2 181 13 277.2 277.2 269.7 277.6 0.11 12 500 4980 -45.5 -48.9 68 3.4 -45.6 180 13 277.6 277.6 269.8 277.9 0.09 13 400 6440 -56.3 -59.8 65 3.5 -56.3 180 21 281.8 281.8 272.3 281.9 0.03 14 369 6946 -59.7 -63.5 61 3.8 -59.7 190 21 283.9 283.9 273.4 283.9 0.02 15 318 7869 -61.3 -64.9 62 3.6 -61.3 183 15 294.0 294.0 278.6 294.1 0.02 16 300 8230 -60.7 -64.5 61 3.8 -60.7 180 13 299.8 299.8 281.3 299.9 0.02 17 250 9380 -56.7 -60.6 61 3.9 -56.8 220 11 321.8 321.8 289.3 321.9 0.04 18 246 9483 -56.3 -60.2 61 3.9 -56.4 220 11 323.9 323.9 290.0 324.0 0.05 19 200 10800 -56.5 -61.0 57 4.5 -56.6 215 5 343.3 343.3 295.1 343.5 0.05 20 150 12620 -57.7 -63.7 46 6.0 -57.8 190 9 370.7 370.7 300.7 370.9 0.05 21 133 13376 -57.1 -63.1 46 6.0 -57.3 193 10 384.7 384.7 303.1 385.0 0.06 22 100 15160 -60.1 -68.1 34 8.0 -60.3 200 13 411.6 411.6 306.7 411.8 0.04 23 70 17380 -62.1 -71.1 29 9.0 -62.3 200 25 451.5 451.5 311.0 451.7 0.04 24 62 18123 -64.5 -73.5 28 9.0 -64.7 196 29 462.2 462.2 312.0 462.3 0.03 25 53 19082 -62.5 -72.5 25 10.0 -62.8 192 34 488.0 488.0 314.1 488.2 0.04 26 50 19440 -63.1 -73.1 25 10.0 -63.4 190 36 494.8 494.8 314.6 495.0 0.04 27 40 20808 -64.3 -74.3 24 10.0 -64.6 192 48 524.4 524.4 316.6 524.6 0.04 28 36 21458 -60.1 -71.1 22 11.0 -60.7 193 54 551.3 551.3 318.2 551.8 0.07 29 30 22600 -58.3 -70.3 20 12.0 -59.2 195 64 585.7 585.7 320.0 586.4 0.10 30 26 23499 -59.5 -71.5 20 12.0 -60.4 200 74 606.8 606.8 320.9 607.5 0.09 31 20 25160 -55.1 -69.1 16 14.0 -56.9 210 91 667.5 667.6 323.4 669.0 0.17 32 17 26201 -53.7 -68.7 14 15.0 -56.1 703.8 703.9 324.6 705.7 0.22 33 14 27478 -43.5 -61.5 12 18.0 -49.6 778.5 778.9 326.8 785.3 0.70 34 12 28512 -44.8 -64.7 9 19.9 -51.1 205 126 809.1 809.4 327.6 814.5 0.53 35 11 29093 -45.5 -66.5 8 21.0 -52.0 826.9 827.1 328.0 831.5 0.45 TRP 369 6946 -59.7 -63.5 61 3.8 -59.7 190 21 283.9 283.9 273.4 283.9 0.02 WND 12 28512 -44.8 -64.7 9 19.9 -51.1 205 126 809.1 809.4 327.6 814.5 0.53 Sounding variables and indices 1000-500 mb thick: 4859.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 69.82 % Est. max temperature: -16.91 C = 1.56 F Sfc-Lift cond lev (LCL): 942.31 mb = 540.18 m = 1772.24 ft T: -32.66 C 700-500 lapse rate: 6.49 C/km ThetaE index: 0.00 C Layer 1001.0- 0.0 mb Conv cond level (CCL): 529.83 mb = 4589.04 m = 15055.74 ft Mean mixing ratio: 0.17 g/kg Conv temperature: 3.67 C = 38.60 F Cap Strength: 26.84 C Lifted Index: 26.78 C Risk: None Lifted Index @300 mb: 38.89 C Lifted Index @700 mb: 21.63 C Showalter Index: 16.65 C Risk: None Total Totals Index: 30.40 C Risk: None Vertical Totals Index: 17.20 C Cross Totals Index: 13.20 C K Index: -18.50 Risk: None Sweat Index: 43.00 Risk: None Energy Index: 4.40 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 16.62 J/kg Max Up Vert Vel: 5.77 m/s Conv Inhibition (B-): 65069.51 J/kg Cap Strength: 26.81 C Lift Cond Lev (LCL): 880.18 mb = 1022.40 m = 3354.28 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 236 at 10 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 1001 114 195 1 0.3 1.0 | 60 9 -7.8 -4.4 1 1000 121 200 1 0.3 0.9 | 60 9 -7.7 -4.5 2 925 671 260 15 14.8 2.6 | 293 7 6.7 -2.8 3 850 1271 280 15 14.8 -2.6 | 320 10 6.7 -8.0 4 700 2667 190 11 1.9 10.8 | 131 8 -6.2 5.4 5 500 4980 180 13 0.0 13.0 | 133 11 -8.1 7.6 6 400 6440 180 21 0.0 21.0 | 153 18 -8.1 15.6 7 369 6946 190 21 3.6 20.7 | 164 16 -4.4 15.3 8 300 8230 180 13 0.0 13.0 | 133 11 -8.1 7.6 9 250 9380 220 11 7.1 8.4 | 162 3 -1.0 3.0 10 200 10800 215 5 2.9 4.1 | 76 5 -5.2 -1.3 11 150 12620 190 9 1.6 8.9 | 118 7 -6.5 3.5 12 100 15160 200 13 4.4 12.2 | 152 8 -3.6 6.8 13 70 17380 200 25 8.6 23.5 | 182 18 0.5 18.1 14 50 19440 190 36 6.3 35.5 | 177 30 -1.8 30.1 15 30 22600 195 64 16.6 61.8 | 189 57 8.5 56.4 16 20 25160 210 91 45.5 78.8 | 207 82 37.4 73.4 Wind Parameters Mean winds (0-6000m): 206.2 at 12.9 knts Storm direction: 236.2 at 9.7 knts Shear (0-3000m) pos: 2.5 neg: 3.1 tot: 5.7 10-3/s Storm rel Dir Shear (0-3000m): 71.8 deg Storm rel helicity (0-3000m) pos: 13.4 neg: -22.8 tot: -9.4 m^2/s^2 ave: -3.1 10^-3 m/s^2 rel: -0.31 Storm rel vorticity (0-3000m) horiz: 7.5 stream: -2.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.46 Bulk Shear: 11.36 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 ------------------------------------------------------------------------------- 500 250 7 24 3| 13.4 0.0 13.4| 3.9 -0.2 3.7 7.3 -0.12| 16.4 -1.9 1000 263 11 325 5| 7.6 0.0 7.6| 11.4 -0.2 11.2 11.2 0.08| 11.2 0.9 1500 267 12 319 6| 5.1 1.5 6.6| 13.1 -7.3 5.8 3.9 -0.04| 9.6 -0.3 2000 261 12 309 6| 3.8 3.0 6.8| 13.1 -14.4 -1.2 -0.6 -0.22| 9.1 -2.0 2500 255 12 300 5| 3.1 3.6 6.6| 13.1 -21.8 -8.6 -3.5 -0.31| 8.7 -2.7 3000 246 12 279 3| 2.5 3.1 5.7| 13.4 -22.8 -9.4 -3.1 -0.31| 7.5 -2.3 4000 229 12 204 3| 1.9 2.5 4.4| 13.8 -22.8 -9.0 -2.2 -0.30| 5.8 -1.7 5000 216 12 169 5| 1.5 2.2 3.7| 15.4 -22.8 -7.4 -1.5 -0.27| 4.8 -1.3 6000 206 13 159 7| 1.3 2.2 3.4| 27.1 -22.8 4.3 0.7 -0.18| 4.5 -0.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251211.00.gif