UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042100.upa.cvt Date: 0000Z 21 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 21 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 25 SFC 989 114 0.4 -4.6 69 5.0 -1.4 335 3 274.4 274.9 272.3 282.0 2.74 2 972 252 -1.1 -9.1 55 8.0 -3.7 352 6 274.3 274.6 271.0 279.8 1.97 3 956 385 0.6 -7.4 55 8.0 -2.2 8 8 277.3 277.7 273.3 283.7 2.29 4 925 649 0.8 -7.2 55 8.0 -2.1 40 13 280.1 280.5 275.0 287.0 2.40 5 858 1255 1.6 -6.4 55 8.0 -1.5 80 22 287.1 287.5 279.1 295.1 2.76 6 850 1330 1.0 -7.0 55 8.0 -2.0 85 23 287.2 287.7 279.0 294.9 2.66 7 751 2311 -6.5 -14.5 53 8.0 -8.9 101 14 289.4 289.7 278.8 294.4 1.65 8 700 2855 -11.7 -16.4 68 4.7 -13.0 110 9 289.5 289.8 278.7 294.1 1.51 9 655 3359 -15.7 -19.6 72 3.9 -16.6 117 11 290.6 290.8 278.8 294.4 1.23 10 651 3405 -15.5 -19.3 73 3.8 -16.4 118 12 291.3 291.5 279.2 295.2 1.27 11 648 3440 -15.1 -19.1 71 4.0 -16.1 118 12 292.1 292.4 279.6 296.1 1.30 12 585 4204 -20.3 -31.3 37 11.0 -22.0 129 15 294.8 294.8 279.7 296.3 0.48 13 523 5024 -25.7 -30.7 63 5.0 -26.4 140 19 297.8 298.0 281.2 299.7 0.57 14 511 5193 -25.1 -29.9 64 4.8 -25.8 143 20 300.6 300.7 282.4 302.6 0.63 15 500 5350 -26.5 -31.2 64 4.7 -27.2 145 21 300.7 300.8 282.4 302.6 0.56 16 498 5379 -26.5 -31.2 64 4.7 -27.2 145 21 301.1 301.2 282.5 303.0 0.57 17 451 6090 -31.5 -43.5 30 12.0 -32.4 143 26 303.5 303.5 283.0 304.1 0.18 18 400 6930 -37.9 -44.9 48 7.0 -38.4 140 31 305.7 305.8 284.0 306.4 0.17 19 319 8443 -50.1 -56.1 49 6.0 -50.3 144 43 309.3 309.3 285.1 309.5 0.06 20 300 8840 -53.7 -59.7 48 6.0 -53.8 145 46 309.7 309.7 285.2 309.8 0.04 21 265 9630 -59.3 -65.3 46 6.0 -59.4 145 48 312.7 312.7 286.3 312.7 0.02 22 251 9974 -54.5 -61.5 42 7.0 -54.6 145 44 324.7 324.7 290.2 324.8 0.04 23 250 10000 -54.3 -61.3 42 7.0 -54.4 145 44 325.3 325.3 290.4 325.5 0.04 24 200 11440 -49.3 -60.3 27 11.0 -49.7 165 35 354.7 354.7 297.7 354.9 0.06 25 159 12954 -47.1 -66.1 10 19.0 -47.9 169 29 382.5 382.5 302.6 382.6 0.03 26 150 13340 -47.3 -68.3 7 21.0 -48.1 170 27 388.6 388.6 303.6 388.7 0.03 27 100 16000 -49.3 -74.3 4 25.0 -50.3 185 13 432.5 432.5 309.1 432.6 0.02 28 89 16764 -48.3 -73.3 4 25.0 -49.5 182 11 449.1 449.1 310.8 449.2 0.02 29 80 17459 -51.9 -75.9 4 24.0 -52.8 179 9 455.6 455.6 311.4 455.7 0.02 30 74 17967 -49.3 -74.3 4 25.0 -50.5 177 8 471.4 471.4 312.8 471.5 0.02 31 70 18330 -50.1 -75.1 4 25.0 -51.3 175 7 477.2 477.2 313.2 477.3 0.02 32 55 19899 -51.1 -75.1 4 24.0 -52.5 189 6 509.0 509.0 315.6 509.2 0.03 33 50 20520 -49.7 -74.7 4 25.0 -51.4 195 5 526.4 526.4 316.7 526.5 0.03 34 49 20652 -48.9 -73.9 4 25.0 -50.8 193 5 531.3 531.3 317.0 531.5 0.04 35 36 22658 -52.9 -76.9 4 24.0 -54.5 169 6 569.9 569.9 319.2 570.1 0.03 36 30 23840 -50.7 -74.7 4 24.0 -53.0 155 7 606.4 606.4 320.9 606.8 0.05 37 22 25858 -49.3 -74.3 4 25.0 -52.7 159 7 666.8 666.9 323.3 667.4 0.07 38 20 26480 -49.9 -74.9 4 25.0 -53.3 160 7 683.4 683.5 323.9 684.1 0.07 39 11 30393 -49.5 -74.5 4 25.0 -54.7 812.3 812.4 327.5 813.8 0.14 TRP 265 9630 -59.3 -65.3 46 6.0 -59.4 145 48 312.7 312.7 286.3 312.7 0.02 WND Sounding variables and indices 1000-500 mb thick: 5325.00 m Freezing level: 984.47 mb = 150.52 m = 493.82 ft Freezing level: 961.65 mb = 337.89 m = 1108.53 ft Freezing level: 836.80 mb = 1460.80 m = 4792.58 ft Wetbulb zero: Below ground Precipitable water: 0.34 inches Sfc-500 mean rel hum: 56.92 % Est. max temperature: 13.38 C = 56.08 F Sfc-Lift cond lev (LCL): 914.75 mb = 738.75 m = 2423.69 ft T: 0.92 C 700-500 lapse rate: 5.93 C/km ThetaE index: 2.19 C Layer 972.0- 956.0 mb Conv cond level (CCL): 708.57 mb = 2760.90 m = 9057.98 ft Mean mixing ratio: 2.37 g/kg Conv temperature: 15.45 C = 59.81 F Cap Strength: 13.20 C Lifted Index: 13.21 C Risk: None Lifted Index @300 mb: 17.18 C Lifted Index @700 mb: 7.03 C Showalter Index: 6.06 C Risk: None Total Totals Index: 47.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 27.50 C Cross Totals Index: 19.50 C K Index: 15.80 Risk: < 20 % chance of thunderstorms Sweat Index: 67.00 Risk: None Energy Index: 1.52 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 36.20 J/kg Max Up Vert Vel: 8.51 m/s Conv Inhibition (B-): 58864.25 J/kg Cap Strength: 13.23 C Lift Cond Lev (LCL): 830.77 mb = 1511.32 m = 4958.33 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 145 at 12 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 ---------------------------------------------------------- 0 989 114 335 3 1.3 -2.7 | 327 15 8.1 -12.6 1 925 649 40 13 -8.4 -10.0 | 4 20 -1.5 -19.9 2 850 1330 85 23 -22.9 -2.0 | 53 20 -16.1 -11.9 3 700 2855 110 9 -8.5 3.1 | 13 7 -1.6 -6.8 4 500 5350 145 21 -12.0 17.2 | 144 9 -5.2 7.3 5 400 6930 140 31 -19.9 23.7 | 137 19 -13.1 13.8 6 300 8840 145 46 -26.4 37.7 | 145 34 -19.6 27.8 7 265 9630 145 48 -27.5 39.3 | 145 36 -20.7 29.4 8 250 10000 145 44 -25.2 36.0 | 145 32 -18.4 26.1 9 200 11440 165 35 -9.1 33.8 | 175 24 -2.2 23.9 10 150 13340 170 27 -4.7 26.6 | 187 17 2.1 16.7 11 100 16000 185 13 1.1 13.0 | 249 9 8.0 3.0 12 70 18330 175 7 -0.6 7.0 | 295 7 6.2 -3.0 13 50 20520 195 5 1.3 4.8 | 302 10 8.1 -5.1 14 30 23840 155 7 -3.0 6.3 | 313 5 3.9 -3.6 15 20 26480 160 7 -2.4 6.6 | 307 6 4.4 -3.3 Wind Parameters Mean winds (0-6000m): 115.4 at 16.1 knts Storm direction: 145.4 at 12.0 knts Shear (0-3000m) pos: 2.2 neg: 0.0 tot: 2.2 10-3/s Storm rel Dir Shear (0-3000m): 56.3 deg Storm rel helicity (0-3000m) pos: 154.1 neg: -15.5 tot: 138.6 m^2/s^2 ave: 46.2 10^-3 m/s^2 rel: 0.51 Storm rel vorticity (0-3000m) horiz: 8.1 stream: 4.2 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 0.90 Bulk Shear: 40.43 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 28 8 349 17| 11.5 0.0 11.5| 53.5 0.0 53.5 107.0 0.87| 12.9 11.2 1000 48 12 7 18| 10.5 0.0 10.5|119.2 0.0 119.2 119.2 0.93| 12.8 11.9 1500 67 15 24 17| 7.5 0.0 7.5|152.5 -0.2 152.3 101.5 0.87| 11.6 10.1 2000 75 16 31 16| 4.5 0.0 4.5|152.5 -4.3 148.1 74.1 0.72| 10.1 7.3 2500 79 15 33 15| 2.8 0.0 2.8|152.5 -11.9 140.6 56.2 0.57| 9.1 5.2 3000 82 15 32 14| 2.2 0.0 2.2|154.1 -15.5 138.6 46.2 0.51| 8.1 4.2 4000 91 14 37 12| 2.3 0.0 2.3|162.0 -15.5 146.5 36.6 0.56| 6.8 3.8 5000 104 15 50 10| 2.3 0.0 2.3|171.4 -15.5 155.8 31.2 0.60| 6.1 3.7 6000 115 16 69 8| 2.2 0.3 2.5|174.0 -17.9 156.1 26.0 0.54| 5.7 3.1 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250421.00.gif