UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041612.upa.cvt Date: 1200Z 16 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 16 APR 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 45 255 3 SFC 992 109 -0.9 -12.9 40 12.0 -4.4 255 3 272.9 273.1 269.2 276.9 1.43 2 925 663 -5.1 -19.1 32 14.0 -8.4 270 21 274.1 274.2 269.1 276.7 0.91 3 850 1319 -10.7 -19.7 48 9.0 -12.6 280 11 274.9 275.1 269.7 277.7 0.94 4 847 1346 -10.9 -19.9 47 9.0 -12.8 279 11 275.0 275.2 269.7 277.7 0.93 5 809 1697 -13.5 -26.5 33 13.0 -15.7 270 14 275.9 276.0 269.6 277.5 0.54 6 748 2291 -15.3 -39.3 11 24.0 -18.1 254 18 280.2 280.2 271.6 280.7 0.17 7 702 2767 -18.7 -35.7 21 17.0 -20.7 241 21 281.5 281.6 272.5 282.4 0.26 8 700 2788 -18.7 -35.7 21 17.0 -20.7 240 21 281.8 281.8 272.6 282.6 0.26 9 684 2961 -17.5 -36.5 17 19.0 -19.8 239 23 285.0 285.0 274.5 285.8 0.25 10 547 4601 -28.1 -34.1 56 6.0 -28.7 229 39 291.2 291.3 277.9 292.5 0.39 11 511 5086 -31.7 -37.7 55 6.0 -32.2 226 44 292.6 292.6 278.4 293.5 0.29 12 500 5240 -33.1 -39.1 55 6.0 -33.6 225 46 292.7 292.7 278.4 293.5 0.26 13 400 6760 -46.7 -51.7 57 5.0 -46.9 220 48 294.3 294.3 278.9 294.6 0.08 14 394 6860 -47.5 -52.5 56 5.0 -47.6 220 49 294.5 294.5 279.0 294.8 0.07 15 367 7325 -49.7 -54.3 58 4.6 -49.8 222 55 297.6 297.6 280.4 297.9 0.06 16 339 7838 -53.7 -58.1 58 4.4 -53.8 224 61 299.0 299.0 281.0 299.2 0.04 17 317 8267 -54.9 -59.1 60 4.2 -55.0 225 66 303.1 303.2 282.7 303.3 0.04 18 308 8451 -54.9 -59.1 60 4.2 -55.0 225 67 305.7 305.7 283.7 305.8 0.04 19 302 8577 -52.1 -56.3 60 4.2 -52.2 225 68 311.3 311.3 285.9 311.6 0.06 20 300 8620 -52.0 -56.2 61 4.2 -52.1 225 68 312.1 312.1 286.1 312.3 0.06 21 285 8953 -51.1 -55.1 62 4.0 -51.2 225 61 318.0 318.0 288.2 318.2 0.08 22 261 9527 -50.1 -54.8 58 4.7 -50.3 225 48 327.5 327.5 291.1 327.9 0.09 23 250 9810 -46.7 -52.7 50 6.0 -47.0 225 42 336.6 336.7 293.6 337.1 0.12 24 246 9918 -46.3 -52.3 51 6.0 -46.6 225 42 338.8 338.8 294.1 339.3 0.12 25 200 11300 -45.9 -57.9 25 12.0 -46.4 230 36 360.1 360.1 298.8 360.4 0.08 26 173 12266 -44.7 -60.7 15 16.0 -45.5 233 31 377.3 377.3 301.9 377.6 0.06 27 170 12383 -45.3 -62.3 13 17.0 -46.1 233 31 378.2 378.2 302.0 378.5 0.05 28 155 12994 -48.3 -66.3 11 18.0 -49.0 234 28 383.2 383.2 302.8 383.4 0.03 29 150 13210 -47.7 -66.7 9 19.0 -48.4 235 27 387.9 387.9 303.5 388.0 0.03 30 128 14260 -45.9 -67.9 7 22.0 -47.0 239 27 409.1 409.1 306.4 409.3 0.03 31 100 15890 -48.9 -73.9 4 25.0 -49.9 245 27 433.2 433.2 309.2 433.3 0.02 32 86 16875 -51.5 -75.5 4 24.0 -52.4 243 24 447.1 447.1 310.6 447.2 0.02 33 70 18210 -52.1 -76.1 4 24.0 -53.1 240 19 472.9 472.9 312.9 473.0 0.02 34 63 18893 -51.5 -75.5 4 24.0 -52.7 488.7 488.7 314.1 488.8 0.02 TRP 317 8267 -54.9 -59.1 60 4.2 -55.0 225 66 303.1 303.2 282.7 303.3 0.04 WND 300 8620 -52.0 -56.2 61 4.2 -52.1 225 68 312.1 312.1 286.1 312.3 0.06 Sounding variables and indices 1000-500 mb thick: 5195.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 35.57 % Est. max temperature: 1.34 C = 34.41 F Sfc-Lift cond lev (LCL): 821.25 mb = 1582.04 m = 5190.37 ft T: -12.65 C 700-500 lapse rate: 5.87 C/km ThetaE index: 0.21 C Layer 809.0- 748.0 mb Conv cond level (CCL): 627.27 mb = 3596.20 m = 11798.41 ft Mean mixing ratio: 1.08 g/kg Conv temperature: 13.62 C = 56.52 F Cap Strength: 13.31 C Lifted Index: 13.29 C Risk: None Lifted Index @300 mb: 24.99 C Lifted Index @700 mb: 6.36 C Showalter Index: 12.64 C Risk: None Total Totals Index: 35.80 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 13.40 C K Index: -14.30 Risk: None Sweat Index: 68.00 Risk: None Energy Index: 3.36 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 5.53 J/kg Max Up Vert Vel: 3.33 m/s Conv Inhibition (B-): 31085.43 J/kg Cap Strength: 13.28 C Lift Cond Lev (LCL): 768.24 mb = 2088.48 m = 6851.90 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 265 at 21 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 ---------------------------------------------------------- 0 992 109 255 3 2.9 0.8 | 87 18 -17.7 -1.0 1 925 663 270 21 21.0 -0.0 | 347 2 0.4 -1.7 2 850 1319 280 11 10.8 -1.9 | 70 10 -9.8 -3.6 3 700 2788 240 21 18.2 10.5 | 165 9 -2.4 8.8 4 500 5240 225 46 32.5 32.5 | 201 33 11.9 30.8 5 400 6760 220 48 30.9 36.8 | 196 37 10.3 35.0 6 317 8267 225 66 46.7 46.7 | 210 52 26.1 44.9 7 300 8620 225 68 48.1 48.1 | 211 54 27.5 46.3 8 250 9810 225 42 29.7 29.7 | 198 29 9.1 28.0 9 200 11300 230 36 27.6 23.1 | 198 23 7.0 21.4 10 150 13210 235 27 22.1 15.5 | 186 14 1.5 13.8 11 100 15890 245 27 24.5 11.4 | 202 10 3.9 9.7 12 70 18210 240 19 16.5 9.5 | 152 9 -4.1 7.8 Wind Parameters Mean winds (0-6000m): 235.2 at 27.6 knts Storm direction: 265.2 at 20.7 knts Shear (0-3000m) pos: 2.0 neg: 2.7 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 93.1 deg Storm rel helicity (0-3000m) pos: 30.9 neg: -3.2 tot: 27.8 m^2/s^2 ave: 9.3 10^-3 m/s^2 rel: 0.29 Storm rel vorticity (0-3000m) horiz: 7.8 stream: 2.3 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.11 Bulk Shear: 48.69 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 ------------------------------------------------------------------------------- 500 268 11 82 10| 16.8 0.0 16.8| 2.4 -2.6 -0.2 -0.3 -0.13| 17.1 -2.2 1000 271 15 73 6| 5.9 0.0 5.9| 5.9 -3.2 2.7 2.7 -0.00| 12.5 -0.0 1500 272 14 72 7| 3.9 0.6 4.5| 10.1 -3.2 6.9 4.6 0.06| 10.3 0.6 2000 270 14 76 7| 2.9 1.4 4.3| 15.5 -3.2 12.3 6.1 0.15| 8.9 1.3 2500 264 15 88 6| 2.4 2.2 4.6| 22.0 -3.2 18.8 7.5 0.24| 8.3 2.0 3000 258 16 108 5| 2.0 2.7 4.7| 30.9 -3.2 27.8 9.3 0.29| 7.8 2.3 4000 249 19 153 6| 1.5 3.4 4.9| 49.2 -3.2 46.0 11.5 0.32| 7.3 2.3 5000 240 24 179 10| 1.2 3.8 5.0| 56.3 -3.2 53.1 10.6 0.28| 6.9 2.0 6000 235 28 188 14| 1.0 3.5 4.5| 56.3 -18.4 37.9 6.3 0.24| 6.1 1.5 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250416.12.gif