UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025041812.upa.cvt Date: 1200Z 18 APR 25 Searching for U4908... Searching the city database file for: U4908 ... Date:1200Z 18 APR 25 Station: U4908 WMO ident: 24908 Latitude: 60.33 Longitude: 102.27 ------------------------------------------------------------------------------- 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 -27 SFC 966 257 7.0 -2.0 53 9.0 3.1 250 1 282.9 283.5 277.9 292.6 3.41 2 925 612 3.8 -7.2 44 11.0 -0.3 250 25 283.2 283.6 276.7 290.1 2.40 3 850 1291 -2.3 -10.3 54 8.0 -5.0 245 31 283.7 284.1 276.5 289.7 2.05 4 758 2188 -9.5 -12.8 77 3.3 -10.5 215 32 285.4 285.7 277.1 290.9 1.88 5 722 2563 -10.9 -13.5 81 2.6 -11.6 203 33 287.9 288.2 278.3 293.4 1.87 6 700 2800 -12.3 -14.9 81 2.6 -13.0 195 33 288.9 289.2 278.6 294.0 1.72 7 695 2855 -12.7 -15.3 81 2.6 -13.4 195 34 289.0 289.3 278.6 294.0 1.67 8 669 3143 -17.1 -21.2 70 4.1 -18.0 198 38 287.2 287.4 276.9 290.5 1.05 9 661 3233 -16.1 -22.1 60 6.0 -17.4 198 40 289.4 289.5 277.9 292.4 0.98 10 642 3452 -17.5 -25.5 50 8.0 -19.0 200 43 290.2 290.3 277.9 292.5 0.75 11 637 3511 -17.3 -25.3 50 8.0 -18.8 201 44 291.1 291.2 278.4 293.5 0.77 12 628 3617 -16.9 -23.9 55 7.0 -18.3 201 46 292.7 292.9 279.3 295.5 0.88 13 584 4159 -19.9 -24.2 69 4.3 -20.7 206 55 295.4 295.5 280.6 298.3 0.92 14 563 4429 -21.9 -25.8 71 3.9 -22.6 208 59 296.1 296.3 280.8 298.8 0.83 15 500 5290 -28.9 -33.9 62 5.0 -29.5 215 73 297.8 297.9 281.0 299.2 0.43 16 400 6840 -42.1 -48.1 52 6.0 -42.4 225 81 300.3 300.3 281.6 300.7 0.12 17 361 7526 -48.0 -53.6 52 5.6 -48.1 220 83 301.3 301.4 282.0 301.6 0.07 18 309 8533 -56.9 -61.9 53 5.0 -57.0 212 75 302.6 302.6 282.5 302.7 0.03 19 300 8720 -57.9 -62.9 53 5.0 -58.0 210 73 303.7 303.7 282.9 303.8 0.03 20 280 9152 -60.7 -65.7 52 5.0 -60.7 210 79 305.8 305.8 283.7 305.8 0.02 21 274 9287 -60.7 -65.7 52 5.0 -60.7 213 73 307.7 307.7 284.5 307.7 0.02 22 252 9818 -52.1 -58.1 48 6.0 -52.2 224 52 327.9 327.9 291.2 328.1 0.06 23 250 9870 -51.3 -57.3 49 6.0 -51.5 225 50 329.8 329.8 291.7 330.1 0.07 24 200 11330 -49.7 -57.7 39 8.0 -50.0 225 44 354.1 354.1 297.5 354.4 0.08 25 150 13220 -48.1 -60.1 24 12.0 -48.7 220 36 387.2 387.2 303.4 387.6 0.08 26 146 13398 -48.5 -60.5 24 12.0 -49.1 221 35 389.5 389.5 303.8 389.9 0.08 27 134 13958 -50.3 -63.3 20 13.0 -50.8 226 32 396.0 396.0 304.7 396.3 0.06 28 104 15606 -51.1 -65.1 17 14.0 -51.8 238 22 424.2 424.2 308.2 424.5 0.06 29 100 15860 -51.7 -65.7 17 14.0 -52.4 240 21 427.8 427.8 308.6 428.1 0.06 30 73 17907 -51.3 -67.3 13 16.0 -52.2 227 19 469.0 469.0 312.6 469.3 0.06 31 71 18088 -50.9 -66.9 13 16.0 -51.9 226 19 473.6 473.6 313.0 474.0 0.07 32 70 18180 -51.5 -67.5 13 16.0 -52.5 225 19 474.2 474.2 313.0 474.6 0.06 33 66 18560 -54.1 -70.1 12 16.0 -54.9 228 19 476.6 476.6 313.2 476.9 0.05 34 53 19971 -53.5 -69.5 13 16.0 -54.5 242 19 508.8 508.9 315.6 509.2 0.06 35 51 20221 -50.3 -67.3 12 17.0 -51.7 244 19 522.0 522.0 316.5 522.5 0.09 36 50 20350 -50.9 -67.9 12 17.0 -52.3 245 19 523.5 523.5 316.5 524.1 0.08 37 45 21030 -52.5 -69.5 11 17.0 -53.8 241 16 535.7 535.7 317.3 536.1 0.07 38 30 23650 -51.1 -69.1 10 18.0 -53.2 225 3 605.3 605.4 320.9 606.2 0.12 39 26 24580 -52.1 -70.1 10 18.0 -54.2 232 8 627.8 627.8 321.9 628.7 0.12 40 20 26280 -52.5 -71.5 8 19.0 -55.1 245 17 675.5 675.5 323.6 676.5 0.12 41 18 26964 -50.7 -69.7 9 19.0 -53.9 701.8 701.9 324.6 703.4 0.18 42 13 29078 -51.9 -70.9 8 19.0 -55.6 766.1 766.2 326.4 768.1 0.21 43 11 30167 -49.5 -69.5 8 20.0 -54.4 812.3 812.5 327.6 815.4 0.30 TRP 280 9152 -60.7 -65.7 52 5.0 -60.7 210 79 305.8 305.8 283.7 305.8 0.02 WND 361 7526 -48.0 -53.6 52 5.6 -48.1 220 83 301.3 301.4 282.0 301.6 0.07 Sounding variables and indices 1000-500 mb thick: 5317.00 m Freezing level: 878.28 mb = 1034.98 m = 3395.57 ft Wetbulb zero: 928.94 mb = 577.30 m = 1894.00 ft Precipitable water: 0.32 inches Sfc-500 mean rel hum: 63.76 % Est. max temperature: 8.40 C = 47.12 F Sfc-Lift cond lev (LCL): 841.13 mb = 1373.17 m = 4505.08 ft T: -2.96 C 700-500 lapse rate: 6.67 C/km ThetaE index: 2.90 C Layer 925.0- 758.0 mb Conv cond level (CCL): 763.03 mb = 2136.19 m = 7008.41 ft Mean mixing ratio: 2.52 g/kg Conv temperature: 9.34 C = 48.82 F Cap Strength: 6.50 C Lifted Index: 6.94 C Risk: None Lifted Index @300 mb: 9.40 C Lifted Index @700 mb: 2.97 C Showalter Index: 7.53 C Risk: None Total Totals Index: 45.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.60 C Cross Totals Index: 18.60 C K Index: 13.70 Risk: None Sweat Index: 135.00 Risk: None Energy Index: 1.98 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.58 J/kg Max Up Vert Vel: 2.27 m/s Conv Inhibition (B-): 61041.66 J/kg Cap Strength: 6.89 C Lift Cond Lev (LCL): 786.10 mb = 1902.99 m = 6243.33 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 246 at 35 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 ---------------------------------------------------------- 0 966 257 250 1 0.9 0.3 | 66 34 -31.1 -13.9 1 925 612 250 25 23.5 8.6 | 56 10 -8.6 -5.7 2 850 1291 245 31 28.1 13.1 | 74 4 -4.0 -1.1 3 700 2800 195 33 8.5 31.9 | 127 29 -23.5 17.6 4 500 5290 215 73 41.9 59.8 | 192 47 9.8 45.6 5 400 6840 225 81 57.3 57.3 | 210 50 25.2 43.0 6 361 7526 220 83 53.4 63.6 | 203 54 21.3 49.3 7 300 8720 210 73 36.5 63.2 | 185 49 4.4 49.0 8 280 9152 210 79 39.5 68.4 | 188 55 7.4 54.2 9 250 9870 225 50 35.4 35.4 | 189 21 3.3 21.1 10 200 11330 225 44 31.1 31.1 | 177 17 -1.0 16.9 11 150 13220 220 36 23.1 27.6 | 146 16 -8.9 13.3 12 100 15860 240 21 18.2 10.5 | 75 14 -13.9 -3.7 13 70 18180 225 19 13.4 13.4 | 88 19 -18.6 -0.8 14 50 20350 245 19 17.2 8.0 | 67 16 -14.8 -6.2 15 30 23650 225 3 2.1 2.1 | 68 32 -29.9 -12.1 16 20 26280 245 17 15.4 7.2 | 67 18 -16.7 -7.1 Wind Parameters Mean winds (0-6000m): 216.1 at 46.8 knts Storm direction: 246.1 at 35.1 knts Shear (0-3000m) pos: 1.3 neg: 5.5 tot: 6.8 10-3/s Storm rel Dir Shear (0-3000m): 75.5 deg Storm rel helicity (0-3000m) pos: 72.0 neg: -27.3 tot: 44.7 m^2/s^2 ave: 14.9 10^-3 m/s^2 rel: 0.16 Storm rel vorticity (0-3000m) horiz: 11.2 stream: 1.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.02 Bulk Shear: 154.79 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 17 63 19| 0.0 26.0 26.0| 0.3 -15.0 -14.7 -29.3 -0.11| 26.1 -2.8 1000 248 23 63 12| 0.0 15.3 15.3| 2.8 -15.0 -12.2 -12.2 -0.04| 15.5 -0.7 1500 244 25 72 10| 0.0 10.5 10.5| 11.2 -15.0 -3.8 -2.5 0.11| 13.3 1.4 2000 237 27 93 9| 0.0 8.1 8.1| 13.8 -15.5 -1.7 -0.8 0.10| 12.4 1.3 2500 230 28 111 11| 0.0 6.7 6.7| 13.8 -27.3 -13.5 -5.4 0.05| 11.8 0.6 3000 223 30 122 14| 1.3 5.5 6.8| 72.0 -27.3 44.7 14.9 0.16| 11.2 1.8 4000 216 34 139 18| 3.2 4.2 7.3|216.0 -27.3 188.7 47.2 0.32| 10.7 3.4 5000 215 41 156 21| 4.4 3.3 7.7|388.5 -27.3 361.2 72.2 0.42| 10.4 4.4 6000 216 47 169 24| 4.3 2.8 7.1|513.4 -27.3 486.0 81.0 0.47| 9.6 4.5 Wrote GIF file: /home/apache/climate/data/raob//U4908/skewt/U4908.skewt.20250418.12.gif