UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025043012.upa.cvt Date: 1200Z 30 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 30 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 106 130 5 SFC 999 114 4.8 -5.2 48 10.0 1.0 130 5 278.0 278.5 274.2 285.3 2.59 2 957 463 4.0 -11.0 33 15.0 -1.0 169 8 280.7 281.0 274.3 285.6 1.72 3 940 608 2.8 -14.2 27 17.0 -2.4 185 10 280.9 281.1 273.9 284.8 1.35 4 925 738 1.8 -14.2 29 16.0 -3.1 200 11 281.1 281.4 274.1 285.2 1.37 5 850 1412 -4.1 -18.1 33 14.0 -7.8 240 9 281.9 282.0 274.0 285.1 1.08 6 823 1665 -6.1 -19.1 35 13.0 -9.4 261 12 282.4 282.5 274.2 285.4 1.02 7 813 1761 -5.7 -18.7 35 13.0 -9.0 269 13 283.8 283.9 275.1 287.0 1.07 8 748 2412 -7.5 -33.5 10 26.0 -12.1 322 20 288.7 288.7 276.5 289.6 0.30 9 710 2816 -8.7 -13.1 70 4.4 -10.1 356 24 291.7 292.0 280.3 297.6 1.96 10 700 2926 -9.1 -13.6 70 4.5 -10.5 5 25 292.4 292.7 280.6 298.2 1.91 11 697 2959 -9.1 -13.7 69 4.6 -10.5 5 25 292.8 293.1 280.7 298.5 1.90 12 640 3612 -14.1 -18.5 69 4.4 -15.2 4 29 294.3 294.6 280.7 298.6 1.39 13 520 5163 -22.1 -26.6 67 4.5 -22.9 1 38 302.7 302.8 283.5 305.4 0.84 14 500 5450 -24.3 -29.0 65 4.7 -25.1 360 40 303.4 303.5 283.7 305.7 0.70 15 400 7040 -35.7 -40.0 65 4.3 -36.1 360 44 308.6 308.6 285.2 309.6 0.29 16 301 8948 -51.1 -55.1 62 4.0 -51.2 5 52 313.0 313.0 286.5 313.3 0.07 17 300 8970 -51.1 -55.1 62 4.0 -51.2 5 52 313.3 313.3 286.6 313.6 0.07 18 271 9627 -54.5 -58.9 58 4.4 -54.6 2 53 317.6 317.6 288.1 317.8 0.05 19 250 10140 -58.5 -63.1 55 4.6 -58.6 360 54 319.1 319.1 288.5 319.2 0.03 20 235 10531 -57.7 -62.4 55 4.7 -57.8 359 49 326.0 326.0 290.6 326.2 0.04 21 200 11560 -53.7 -58.7 54 5.0 -53.8 355 35 347.7 347.7 296.2 348.0 0.07 22 193 11789 -53.1 -58.1 54 5.0 -53.2 355 34 352.3 352.3 297.2 352.6 0.08 23 150 13410 -52.9 -60.9 37 8.0 -53.2 355 23 378.9 378.9 302.1 379.3 0.07 24 100 16040 -53.3 -66.3 19 13.0 -53.8 355 15 424.7 424.8 308.3 425.0 0.05 25 70 18340 -51.9 -68.9 11 17.0 -52.8 355 11 473.4 473.4 313.0 473.7 0.05 26 68 18529 -51.1 -68.1 11 17.0 -52.1 355 11 479.0 479.0 313.4 479.4 0.06 27 50 20530 -51.5 -71.5 7 20.0 -52.9 350 11 522.1 522.1 316.5 522.4 0.05 28 37 22484 -50.7 -72.7 6 22.0 -52.7 267 7 571.1 571.1 319.2 571.5 0.06 29 30 23840 -53.3 -75.3 5 22.0 -55.1 210 5 599.3 599.4 320.6 599.7 0.05 30 28 24283 -53.3 -76.3 4 23.0 -55.2 232 5 611.3 611.3 321.1 611.6 0.04 31 25 25017 -49.1 -73.1 4 24.0 -52.2 268 4 643.5 643.5 322.4 644.1 0.08 32 20 26480 -48.3 -73.3 4 25.0 -52.2 340 3 688.3 688.4 324.1 689.1 0.09 33 13 29312 -49.3 -74.3 4 25.0 -54.1 36 8 775.1 775.2 326.7 776.3 0.12 34 10 31060 -42.1 -69.1 4 27.0 -50.8 70 11 862.4 862.6 328.7 866.1 0.35 35 8.6 32084 -40.7 -67.7 4 27.0 -50.8 905.9 906.1 329.7 911.4 0.49 TRP 250 10140 -58.5 -63.1 55 4.6 -58.6 360 54 319.1 319.1 288.5 319.2 0.03 WND Sounding variables and indices 1000-500 mb thick: 5344.00 m Freezing level: 902.12 mb = 943.63 m = 3095.85 ft Wetbulb zero: 978.82 mb = 279.98 m = 918.55 ft Precipitable water: 0.28 inches Sfc-500 mean rel hum: 50.26 % Est. max temperature: 8.64 C = 47.55 F Sfc-Lift cond lev (LCL): 855.72 mb = 1358.55 m = 4457.13 ft T: -3.63 C 700-500 lapse rate: 6.02 C/km ThetaE index: 0.80 C Layer 940.0- 925.0 mb Conv cond level (CCL): 594.30 mb = 4165.72 m = 13666.90 ft Mean mixing ratio: 1.71 g/kg Conv temperature: 24.07 C = 75.33 F Cap Strength: 15.20 C Lifted Index: 15.52 C Risk: None Lifted Index @300 mb: 19.90 C Lifted Index @700 mb: 9.75 C Showalter Index: 15.67 C Risk: None Total Totals Index: 26.40 C Risk: None Vertical Totals Index: 20.20 C Cross Totals Index: 6.20 C K Index: -2.40 Risk: None Sweat Index: 58.00 Risk: None Energy Index: 4.34 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 12.58 J/kg Max Up Vert Vel: 5.02 m/s Conv Inhibition (B-): 79063.38 J/kg Cap Strength: 15.37 C Lift Cond Lev (LCL): 759.40 mb = 2293.48 m = 7524.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 28 at 19 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 ---------------------------------------------------------- 0 999 114 130 5 -3.8 3.2 | 194 20 4.7 19.7 1 925 738 200 11 3.8 10.3 | 205 29 12.3 26.8 2 850 1412 240 9 7.8 4.5 | 218 27 16.4 20.9 3 700 2926 5 25 -2.2 -24.9 | 323 11 6.4 -8.5 4 500 5450 360 40 -0.0 -40.0 | 340 25 8.6 -23.6 5 400 7040 360 44 -0.0 -44.0 | 343 29 8.6 -27.6 6 300 8970 5 52 -4.5 -51.8 | 353 36 4.0 -35.4 7 250 10140 360 54 -0.0 -54.0 | 347 39 8.6 -37.6 8 200 11560 355 35 3.1 -34.9 | 328 22 11.6 -18.4 9 150 13410 355 23 2.0 -22.9 | 302 12 10.6 -6.5 10 100 16040 355 15 1.3 -14.9 | 261 10 9.9 1.5 11 70 18340 355 11 1.0 -11.0 | 240 11 9.5 5.5 12 50 20530 350 11 1.9 -10.8 | 242 12 10.5 5.6 13 30 23840 210 5 2.5 4.3 | 208 24 11.1 20.8 14 20 26480 340 3 1.0 -2.8 | 215 17 9.6 13.6 15 10 31060 70 11 -10.3 -3.8 | 172 13 -1.8 12.7 Wind Parameters Mean winds (0-6000m): 357.5 at 24.7 knts Storm direction: 27.5 at 18.5 knts Shear (0-3000m) pos: 5.0 neg: 0.0 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 132.5 deg Storm rel helicity (0-3000m) pos: 292.2 neg: -1.3 tot: 290.9 m^2/s^2 ave: 97.0 10^-3 m/s^2 rel: 0.80 Storm rel vorticity (0-3000m) horiz: 10.3 stream: 8.3 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.09 Bulk Shear: 136.15 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 ------------------------------------------------------------------------------- 500 174 7 198 25| 8.4 0.0 8.4| 22.2 -1.3 20.9 41.8 0.35| 9.0 3.1 1000 194 9 203 27| 5.8 0.0 5.8| 70.2 -1.3 68.9 68.9 0.60| 8.0 4.8 1500 210 9 208 28| 5.0 0.0 5.0|114.2 -1.3 112.9 75.3 0.69| 7.6 5.3 2000 235 10 217 28| 5.5 0.0 5.5|189.8 -1.3 188.5 94.3 0.78| 8.6 6.8 2500 272 12 232 26| 5.4 0.0 5.4|258.1 -1.3 256.9 102.7 0.80| 9.9 8.0 3000 324 14 253 17| 5.0 0.0 5.0|292.2 -1.3 290.9 97.0 0.80| 10.3 8.3 4000 351 18 276 11| 3.8 0.8 4.5|300.7 -1.3 299.4 74.9 0.77| 8.5 6.5 5000 356 21 296 11| 3.0 1.2 4.3|307.5 -1.3 306.2 61.2 0.72| 7.4 5.4 6000 358 25 311 13| 2.5 1.4 3.9|313.1 -1.3 311.8 52.0 0.70| 6.5 4.5 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250430.12.gif