UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042912.upa.cvt Date: 1200Z 29 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 29 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 ------------------------------------------------------------------------------- SFC 1004 115 4.4 -5.6 48 10.0 0.7 345 3 277.2 277.7 273.6 284.2 2.50 1 1000 147 4.0 -5.0 52 9.0 0.6 350 3 277.1 277.6 273.7 284.5 2.63 2 925 774 -1.5 -11.5 46 10.0 -4.6 325 13 277.8 278.1 272.7 282.7 1.71 3 892 1062 -3.7 -12.7 50 9.0 -6.4 321 14 278.4 278.7 272.9 283.0 1.61 4 850 1441 -5.7 -17.7 38 12.0 -8.8 315 15 280.2 280.4 273.2 283.5 1.12 5 718 2746 -12.7 -23.7 39 11.0 -15.0 302 13 286.3 286.5 276.0 288.8 0.79 6 700 2939 -14.3 -26.3 35 12.0 -16.5 300 13 286.6 286.8 276.0 288.6 0.64 7 500 5410 -30.5 -43.5 27 13.0 -31.5 305 15 295.9 295.9 279.7 296.4 0.16 8 497 5453 -30.7 -43.7 27 13.0 -31.7 305 15 296.1 296.1 279.8 296.7 0.16 9 400 6950 -42.7 -56.7 20 14.0 -43.1 300 15 299.5 299.5 281.2 299.7 0.04 10 374 7401 -45.7 -58.7 22 13.0 -46.0 316 18 301.3 301.3 282.0 301.5 0.04 11 330 8227 -49.7 -62.7 20 13.0 -50.0 345 25 306.8 306.8 284.1 306.9 0.03 12 300 8850 -50.3 -64.3 18 14.0 -50.5 350 35 314.5 314.5 286.9 314.5 0.02 13 275 9417 -51.1 -65.1 17 14.0 -51.4 352 34 321.2 321.2 289.2 321.3 0.02 14 250 10040 -49.3 -64.3 16 15.0 -49.7 355 33 332.8 332.8 292.5 332.9 0.03 15 231 10558 -49.1 -65.1 14 16.0 -49.5 351 29 340.7 340.7 294.5 340.8 0.03 16 200 11500 -49.9 -67.9 10 18.0 -50.4 345 23 353.8 353.8 297.4 353.8 0.02 17 150 13380 -50.7 -71.7 7 21.0 -51.2 355 19 382.7 382.7 302.7 382.8 0.02 18 100 16010 -51.7 -75.7 4 24.0 -52.5 355 11 427.8 427.8 308.6 427.9 0.01 19 70 18320 -51.1 -75.1 4 24.0 -52.2 360 9 475.1 475.1 313.1 475.2 0.02 20 60 19322 -52.9 -76.9 4 24.0 -53.9 16 10 492.5 492.5 314.4 492.6 0.02 21 52 20253 -50.1 -75.1 4 25.0 -51.7 31 11 519.5 519.6 316.3 519.7 0.03 22 50 20510 -50.5 -74.5 4 24.0 -52.1 35 11 524.5 524.5 316.6 524.7 0.03 23 30 23820 -51.9 -75.9 4 24.0 -54.0 295 3 603.2 603.2 320.7 603.5 0.04 24 20 26460 -48.9 -73.9 4 25.0 -52.6 355 5 686.5 686.5 324.0 687.2 0.09 25 18 27150 -50.1 -75.1 4 25.0 -53.7 703.7 703.7 324.6 704.4 0.08 TRP 330 8227 -49.7 -62.7 20 13.0 -50.0 345 25 306.8 306.8 284.1 306.9 0.03 WND Sounding variables and indices 1000-500 mb thick: 5263.00 m Freezing level: 945.45 mb = 603.00 m = 1978.32 ft Wetbulb zero: 991.66 mb = 214.33 m = 703.17 ft Precipitable water: 0.21 inches Sfc-500 mean rel hum: 37.10 % Est. max temperature: 7.17 C = 44.91 F Sfc-Lift cond lev (LCL): 859.86 mb = 1350.34 m = 4430.19 ft T: -5.22 C 700-500 lapse rate: 6.56 C/km ThetaE index: 1.83 C Layer 925.0- 892.0 mb Conv cond level (CCL): 728.96 mb = 2628.79 m = 8624.53 ft Mean mixing ratio: 2.08 g/kg Conv temperature: 12.96 C = 55.33 F Cap Strength: 5.91 C Lifted Index: 10.73 C Risk: None Lifted Index @300 mb: 21.98 C Lifted Index @700 mb: 5.84 C Showalter Index: 10.70 C Risk: None Total Totals Index: 37.60 C Risk: None Vertical Totals Index: 24.80 C Cross Totals Index: 12.80 C K Index: -4.90 Risk: None Sweat Index: 45.00 Risk: None Energy Index: 2.74 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.75 J/kg Max Up Vert Vel: 2.35 m/s Conv Inhibition (B-): 54885.01 J/kg Cap Strength: 10.62 C Lift Cond Lev (LCL): 823.78 mb = 1683.24 m = 5522.37 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 338 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 1004 115 345 3 0.8 -2.9 | 155 7 -3.1 6.4 1 1000 147 350 3 0.5 -3.0 | 153 7 -3.3 6.4 2 925 774 325 13 7.5 -10.6 | 290 4 3.6 -1.3 3 850 1441 315 15 10.6 -10.6 | 281 7 6.8 -1.3 4 700 2939 300 13 11.3 -6.5 | 249 8 7.4 2.8 5 500 5410 305 15 12.3 -8.6 | 265 8 8.4 0.7 6 400 6950 300 15 13.0 -7.5 | 259 9 9.1 1.8 7 330 8227 345 25 6.5 -24.1 | 350 15 2.6 -14.8 8 300 8850 350 35 6.1 -34.5 | 355 25 2.2 -25.1 9 250 10040 355 33 2.9 -32.9 | 2 24 -1.0 -23.5 10 200 11500 345 23 6.0 -22.2 | 351 13 2.1 -12.9 11 150 13380 355 19 1.7 -18.9 | 13 10 -2.2 -9.6 12 100 16010 355 11 1.0 -11.0 | 61 3 -2.9 -1.6 13 70 18320 360 9 -0.0 -9.0 | 95 4 -3.8 0.3 14 50 20510 35 11 -6.3 -9.0 | 92 10 -10.2 0.3 15 30 23820 295 3 2.7 -1.3 | 172 8 -1.1 8.1 16 20 26460 355 5 0.4 -5.0 | 142 6 -3.4 4.4 Wind Parameters Mean winds (0-6000m): 307.6 at 13.5 knts Storm direction: 337.6 at 10.1 knts Shear (0-3000m) pos: 0.0 neg: 1.9 tot: 1.9 10-3/s Storm rel Dir Shear (0-3000m): 95.6 deg Storm rel helicity (0-3000m) pos: 1.6 neg: -9.6 tot: -8.0 m^2/s^2 ave: -2.7 10^-3 m/s^2 rel: -0.07 Storm rel vorticity (0-3000m) horiz: 3.1 stream: -0.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.30 Bulk Shear: 9.21 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 ------------------------------------------------------------------------------- 500 336 6 161 4| 0.0 7.8 7.8| 0.9 -0.8 0.1 0.3 0.30| 8.2 2.4 1000 326 10 231 2| 0.0 5.9 5.9| 1.4 -1.2 0.2 0.2 0.24| 6.4 1.6 1500 322 11 263 3| 0.0 4.2 4.2| 1.4 -2.9 -1.5 -1.0 0.14| 5.0 0.7 2000 319 12 267 4| 0.0 3.0 3.0| 1.4 -5.5 -4.1 -2.0 0.04| 4.1 0.2 2500 316 12 265 5| 0.0 2.3 2.3| 1.4 -8.1 -6.7 -2.7 -0.04| 3.6 -0.1 3000 313 13 263 5| 0.0 1.9 1.9| 1.6 -9.6 -8.0 -2.7 -0.07| 3.1 -0.2 4000 310 13 260 6| 0.1 1.4 1.6| 3.6 -9.6 -6.1 -1.5 -0.02| 2.5 -0.0 5000 309 13 260 7| 0.2 1.2 1.3| 5.6 -9.6 -4.0 -0.8 0.03| 2.1 0.1 6000 308 13 261 7| 0.2 1.0 1.2| 6.2 -10.7 -4.5 -0.7 0.02| 1.8 0.0 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250429.12.gif