UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042212.upa.cvt Date: 1200Z 22 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 22 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 30 SFC 990 111 0.6 -7.4 55 8.0 -2.1 145 1 274.5 274.9 271.5 280.7 2.21 2 925 650 -4.5 -12.5 54 8.0 -6.8 155 9 274.7 275.0 270.7 279.2 1.58 3 850 1308 -10.1 -14.6 70 4.5 -11.2 155 11 275.6 275.8 270.9 279.7 1.45 4 787 1896 -15.3 -18.1 79 2.8 -15.9 153 13 276.1 276.3 270.8 279.5 1.17 5 773 2031 -14.7 -17.2 81 2.5 -15.3 153 13 278.2 278.4 272.3 281.9 1.28 6 743 2331 -14.3 -20.3 60 6.0 -15.6 152 14 281.8 282.0 273.9 284.9 1.02 7 700 2781 -17.1 -30.1 31 13.0 -19.1 150 15 283.5 283.6 274.0 285.0 0.45 8 685 2943 -18.1 -33.1 26 15.0 -20.1 150 15 284.2 284.3 274.2 285.3 0.34 9 681 2986 -18.5 -33.5 26 15.0 -20.5 150 15 284.2 284.3 274.2 285.3 0.33 10 653 3298 -18.9 -27.9 45 9.0 -20.4 149 15 287.2 287.3 276.2 289.1 0.59 11 629 3575 -21.1 -28.1 53 7.0 -22.2 148 15 287.8 287.9 276.5 289.7 0.60 12 514 5027 -33.3 -38.3 61 5.0 -33.7 145 15 290.1 290.2 277.2 291.0 0.27 13 500 5220 -33.9 -38.6 62 4.7 -34.3 145 15 291.7 291.8 277.9 292.6 0.27 14 499 5234 -33.9 -38.6 62 4.7 -34.3 145 15 291.9 291.9 278.0 292.8 0.27 15 422 6397 -40.9 -52.9 26 12.0 -41.3 141 32 297.2 297.3 280.2 297.5 0.07 16 400 6760 -43.7 -55.7 25 12.0 -44.0 140 38 298.2 298.2 280.6 298.4 0.05 17 361 7442 -46.9 -57.9 27 11.0 -47.2 135 35 302.8 302.8 282.5 302.9 0.04 18 322 8200 -45.3 -58.3 22 13.0 -45.7 141 42 315.1 315.1 287.2 315.2 0.05 19 300 8670 -46.7 -60.7 19 14.0 -47.1 145 46 319.5 319.5 288.6 319.7 0.04 20 250 9880 -47.5 -65.5 11 18.0 -48.0 150 35 335.4 335.5 293.2 335.5 0.02 21 200 11350 -48.9 -69.9 7 21.0 -49.4 150 25 355.3 355.3 297.8 355.4 0.02 22 196 11482 -49.1 -70.1 7 21.0 -49.6 150 25 357.1 357.1 298.1 357.1 0.02 23 150 13250 -44.7 -69.7 4 25.0 -45.7 155 25 393.0 393.0 304.2 393.1 0.02 24 132 14104 -43.9 -69.9 4 26.0 -45.2 149 19 409.1 409.1 306.4 409.2 0.02 25 100 15950 -47.1 -73.1 4 26.0 -48.3 135 7 436.7 436.7 309.6 436.8 0.02 26 88 16791 -49.9 -74.9 4 25.0 -50.9 151 6 447.4 447.4 310.6 447.5 0.02 27 76 17746 -51.7 -75.7 4 24.0 -52.7 170 4 462.8 462.8 312.0 462.9 0.02 28 70 18280 -51.1 -75.1 4 24.0 -52.2 180 3 475.1 475.1 313.1 475.2 0.02 29 63 18967 -48.9 -73.9 4 25.0 -50.4 157 6 494.4 494.5 314.5 494.6 0.03 30 53 20093 -51.9 -75.9 4 24.0 -53.2 118 10 512.6 512.6 315.8 512.7 0.02 31 50 20470 -52.1 -76.1 4 24.0 -53.4 105 11 520.7 520.7 316.4 520.9 0.02 32 38 22257 -49.3 -74.3 4 25.0 -51.5 116 8 570.3 570.4 319.2 570.6 0.04 33 30 23800 -50.9 -74.9 4 24.0 -53.2 125 5 605.9 605.9 320.9 606.2 0.05 34 20 26450 -49.9 -74.9 4 25.0 -53.3 80 11 683.4 683.5 323.9 684.1 0.07 35 18 27136 -50.3 -75.3 4 25.0 -53.8 75 12 703.1 703.1 324.6 703.7 0.08 36 16 27908 -47.1 -73.1 4 26.0 -52.0 69 12 737.6 737.7 325.6 738.7 0.12 37 12 29799 -49.3 -74.3 4 25.0 -54.3 54 14 793.1 793.1 327.1 794.4 0.14 38 10 31000 -46.3 -72.3 4 26.0 -53.1 45 15 846.7 846.8 328.4 849.0 0.22 39 8.9 31777 -44.9 -70.9 4 26.0 -52.8 880.8 881.0 329.1 884.1 0.30 TRP 361 7442 -46.9 -57.9 27 11.0 -47.2 135 35 302.8 302.8 282.5 302.9 0.04 WND Sounding variables and indices 1000-500 mb thick: 5190.00 m Freezing level: 982.35 mb = 174.04 m = 570.99 ft Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 56.93 % Est. max temperature: 1.72 C = 35.09 F Sfc-Lift cond lev (LCL): 873.57 mb = 1095.19 m = 3593.11 ft T: -8.29 C 700-500 lapse rate: 6.89 C/km ThetaE index: 1.51 C Layer 925.0- 850.0 mb Conv cond level (CCL): 818.87 mb = 1592.72 m = 5225.39 ft Mean mixing ratio: 1.77 g/kg Conv temperature: 1.91 C = 35.44 F Cap Strength: 9.10 C Lifted Index: 10.26 C Risk: None Lifted Index @300 mb: 28.22 C Lifted Index @700 mb: 5.79 C Showalter Index: 10.26 C Risk: None Total Totals Index: 43.10 C Risk: None Vertical Totals Index: 23.80 C Cross Totals Index: 19.30 C K Index: -3.80 Risk: None Sweat Index: 37.00 Risk: None Energy Index: 2.71 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 2.02 J/kg Max Up Vert Vel: 2.01 m/s Conv Inhibition (B-): 73684.40 J/kg Cap Strength: 10.03 C Lift Cond Lev (LCL): 832.84 mb = 1463.58 m = 4801.73 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 178 at 11 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 ---------------------------------------------------------- 0 990 111 145 1 -0.6 0.8 | 1 10 -0.2 -9.8 1 925 650 155 9 -3.8 8.2 | 55 4 -3.5 -2.5 2 850 1308 155 11 -4.6 10.0 | 81 4 -4.3 -0.6 3 700 2781 150 15 -7.5 13.0 | 108 8 -7.2 2.4 4 500 5220 145 15 -8.6 12.3 | 101 8 -8.3 1.7 5 400 6760 140 38 -24.4 29.1 | 127 30 -24.1 18.5 6 361 7442 135 35 -24.7 24.7 | 120 28 -24.4 14.1 7 300 8670 145 46 -26.4 37.7 | 136 38 -26.1 27.1 8 250 9880 150 35 -17.5 30.3 | 139 26 -17.2 19.7 9 200 11350 150 25 -12.5 21.7 | 132 16 -12.2 11.0 10 150 13250 155 25 -10.6 22.7 | 140 16 -10.2 12.0 11 100 15950 135 7 -4.9 4.9 | 39 7 -4.6 -5.7 12 70 18280 180 3 0.0 3.0 | 358 8 0.3 -7.6 13 50 20470 105 11 -10.6 2.8 | 53 13 -10.3 -7.8 14 30 23800 125 5 -4.1 2.9 | 26 9 -3.8 -7.8 15 20 26450 80 11 -10.8 -1.9 | 40 16 -10.5 -12.5 16 10 31000 45 15 -10.6 -10.6 | 26 24 -10.3 -21.2 Wind Parameters Mean winds (0-6000m): 148.2 at 14.2 knts Storm direction: 178.2 at 10.6 knts Shear (0-3000m) pos: 1.6 neg: 0.8 tot: 2.4 10-3/s Storm rel Dir Shear (0-3000m): 105.8 deg Storm rel helicity (0-3000m) pos: 15.8 neg: -0.2 tot: 15.6 m^2/s^2 ave: 5.2 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 2.5 stream: 1.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.17 Bulk Shear: 11.95 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 ------------------------------------------------------------------------------- 500 154 5 15 7| 7.6 0.0 7.6| 9.2 0.0 9.2 18.4 0.69| 7.7 5.3 1000 155 7 34 5| 4.8 0.0 4.8| 11.4 0.0 11.4 11.4 0.75| 4.9 3.7 1500 155 8 48 4| 3.2 0.5 3.7| 12.9 0.0 12.9 8.6 0.77| 3.7 2.9 2000 154 9 61 4| 2.4 0.7 3.2| 14.2 0.0 14.2 7.1 0.76| 3.2 2.4 2500 153 10 73 5| 1.9 0.9 2.8| 15.5 0.0 15.5 6.2 0.73| 2.8 2.1 3000 152 11 81 5| 1.6 0.8 2.4| 15.8 -0.2 15.6 5.2 0.70| 2.5 1.7 4000 151 12 90 6| 1.2 0.6 1.8| 15.8 -1.1 14.8 3.7 0.65| 1.9 1.3 5000 150 13 94 6| 1.0 0.5 1.5| 15.8 -1.9 13.9 2.8 0.61| 1.6 1.0 6000 148 14 101 7| 0.8 1.6 2.4| 33.2 -2.0 31.2 5.2 0.50| 2.5 1.2 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250422.12.gif