UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 26 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 1007 109 0.0 -12.0 40 12.0 -3.6 180 1 272.6 272.9 269.2 276.9 1.51 1 1001 157 0.8 -11.2 40 12.0 -2.9 180 1 273.9 274.1 270.2 278.4 1.62 2 1000 165 0.6 -12.4 37 13.0 -3.3 180 1 273.8 274.0 269.9 277.9 1.47 3 925 784 -5.1 -18.1 35 13.0 -8.2 245 5 274.1 274.3 269.2 277.0 0.99 4 850 1441 -10.9 -19.9 47 9.0 -12.8 250 7 274.7 274.9 269.5 277.4 0.93 5 848 1459 -11.1 -20.1 47 9.0 -13.0 249 7 274.7 274.9 269.5 277.4 0.91 6 843 1504 -10.9 -19.9 47 9.0 -12.8 248 8 275.4 275.5 270.0 278.1 0.93 7 767 2225 -14.3 -31.3 22 17.0 -16.8 221 15 279.3 279.3 271.4 280.4 0.36 8 715 2756 -15.9 -20.9 65 5.0 -16.9 201 21 283.2 283.3 274.6 286.2 1.01 9 700 2915 -17.3 -21.5 70 4.2 -18.1 195 23 283.3 283.5 274.7 286.3 0.98 10 687 3055 -18.1 -21.8 73 3.7 -18.8 195 24 284.0 284.1 275.0 286.9 0.97 11 586 4223 -26.7 -29.8 75 3.1 -27.1 198 34 287.2 287.2 276.1 288.9 0.55 12 548 4706 -27.7 -31.6 69 3.9 -28.2 199 38 291.5 291.6 278.2 293.1 0.50 13 500 5360 -31.5 -34.8 73 3.3 -31.9 200 44 294.6 294.7 279.5 295.9 0.40 14 461 5928 -34.7 -37.7 74 3.0 -35.0 198 47 297.6 297.6 280.7 298.7 0.32 15 400 6900 -42.3 -46.3 65 4.0 -42.5 195 52 300.0 300.0 281.5 300.5 0.15 16 304 8696 -55.4 -59.6 59 4.2 -55.5 190 64 306.1 306.1 283.9 306.2 0.04 17 301 8759 -55.9 -60.1 59 4.2 -56.0 190 64 306.3 306.3 284.0 306.4 0.04 18 300 8780 -55.7 -59.9 59 4.2 -55.8 190 64 306.8 306.8 284.2 307.0 0.04 19 286 9086 -55.1 -59.5 58 4.4 -55.2 193 57 311.9 311.9 286.1 312.1 0.04 20 277 9293 -51.3 -55.9 58 4.6 -51.4 194 53 320.3 320.3 288.9 320.5 0.07 21 258 9755 -52.5 -57.4 55 4.9 -52.6 198 42 325.1 325.1 290.3 325.3 0.06 22 250 9960 -51.9 -56.9 55 5.0 -52.0 200 38 328.9 328.9 291.5 329.2 0.07 23 200 11420 -49.5 -57.5 39 8.0 -49.8 195 21 354.4 354.4 297.7 354.7 0.08 24 189 11791 -47.9 -56.9 35 9.0 -48.3 198 20 362.7 362.8 299.3 363.1 0.09 25 150 13310 -48.5 -61.5 21 13.0 -49.1 210 15 386.5 386.5 303.3 386.8 0.06 26 129 14297 -50.1 -65.1 15 15.0 -50.7 204 12 400.7 400.7 305.3 400.9 0.05 27 100 15960 -49.5 -67.5 10 18.0 -50.4 195 7 432.1 432.1 309.1 432.3 0.04 28 88 16800 -49.5 -69.5 8 20.0 -50.5 175 5 448.2 448.2 310.7 448.4 0.04 29 70 18300 -50.5 -72.5 6 22.0 -51.7 140 1 476.3 476.4 313.2 476.5 0.03 30 63 18983 -51.9 -73.9 5 22.0 -53.0 140 2 487.8 487.8 314.1 488.0 0.03 31 50 20480 -51.1 -74.1 5 23.0 -52.6 140 3 523.1 523.1 316.5 523.3 0.03 32 30 23800 -51.1 -75.1 4 24.0 -53.4 105 7 605.3 605.4 320.9 605.7 0.05 33 23 25528 -51.3 -75.3 4 24.0 -54.0 59 4 652.5 652.6 322.8 653.0 0.06 34 20 26440 -49.7 -74.7 4 25.0 -53.2 35 3 684.0 684.1 323.9 684.7 0.08 35 12 29819 -44.7 -70.7 4 26.0 -51.5 90 13 809.4 809.5 327.5 811.7 0.23 36 11 30399 -45.7 -71.7 4 26.0 -52.4 100 15 826.1 826.2 327.9 828.4 0.22 37 10 31040 -41.5 -68.5 4 27.0 -50.5 110 17 864.6 864.8 328.8 868.7 0.38 38 9.3 31532 -41.9 -68.9 4 27.0 -51.1 881.2 881.4 329.1 885.5 0.38 TRP 301 8759 -55.9 -60.1 59 4.2 -56.0 190 64 306.3 306.3 284.0 306.4 0.04 WND 304 8696 -55.4 -59.6 59 4.2 -55.5 190 64 306.1 306.1 283.9 306.2 0.04 Sounding variables and indices 1000-500 mb thick: 5195.00 m Freezing level: 992.11 mb = 230.16 m = 755.10 ft Wetbulb zero: Below ground Precipitable water: 0.19 inches Sfc-500 mean rel hum: 55.99 % Est. max temperature: 2.07 C = 35.73 F Sfc-Lift cond lev (LCL): 834.05 mb = 1585.90 m = 5203.02 ft T: -11.28 C 700-500 lapse rate: 5.81 C/km ThetaE index: 1.47 C Layer 1000.0- 850.0 mb Conv cond level (CCL): 667.87 mb = 3262.72 m = 10704.33 ft Mean mixing ratio: 1.21 g/kg Conv temperature: 11.96 C = 53.54 F Cap Strength: 12.48 C Lifted Index: 14.48 C Risk: None Lifted Index @300 mb: 20.86 C Lifted Index @700 mb: 7.35 C Showalter Index: 14.45 C Risk: None Total Totals Index: 32.20 C Risk: None Vertical Totals Index: 20.60 C Cross Totals Index: 11.60 C K Index: -3.50 Risk: None Sweat Index: 58.00 Risk: None Energy Index: 3.88 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 1.42 J/kg Max Up Vert Vel: 1.68 m/s Conv Inhibition (B-): 74357.80 J/kg Cap Strength: 14.39 C Lift Cond Lev (LCL): 782.46 mb = 2073.06 m = 6801.29 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 231 at 18 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 1007 109 180 1 0.0 1.0 | 54 18 -14.3 -10.5 1 1000 165 180 1 0.0 1.0 | 54 18 -14.3 -10.5 2 925 784 245 5 4.5 2.1 | 46 14 -9.8 -9.4 3 850 1441 250 7 6.6 2.4 | 40 12 -7.7 -9.1 4 700 2915 195 23 6.0 22.2 | 142 14 -8.3 10.7 5 500 5360 200 44 15.0 41.3 | 181 30 0.8 29.8 6 400 6900 195 52 13.5 50.2 | 179 39 -0.8 38.7 7 304 8696 190 64 11.1 63.0 | 176 52 -3.2 51.5 8 301 8759 190 64 11.1 63.0 | 176 52 -3.2 51.5 9 300 8780 190 64 11.1 63.0 | 176 52 -3.2 51.5 10 250 9960 200 38 13.0 35.7 | 177 24 -1.3 24.2 11 200 11420 195 21 5.4 20.3 | 135 12 -8.9 8.8 12 150 13310 210 15 7.5 13.0 | 102 7 -6.8 1.5 13 100 15960 195 7 1.8 6.8 | 69 13 -12.5 -4.8 14 70 18300 140 1 -0.6 0.8 | 54 18 -14.9 -10.7 15 50 20480 140 3 -1.9 2.3 | 60 19 -16.2 -9.2 16 30 23800 105 7 -6.8 1.8 | 65 23 -21.1 -9.7 17 20 26440 35 3 -1.7 -2.5 | 49 21 -16.0 -14.0 18 10 31040 110 17 -16.0 5.8 | 79 31 -30.3 -5.7 Wind Parameters Mean winds (0-6000m): 201.1 at 24.5 knts Storm direction: 231.1 at 18.4 knts Shear (0-3000m) pos: 1.0 neg: 3.7 tot: 4.7 10-3/s Storm rel Dir Shear (0-3000m): 94.1 deg Storm rel helicity (0-3000m) pos: 21.8 neg: -13.1 tot: 8.7 m^2/s^2 ave: 2.9 10^-3 m/s^2 rel: 0.26 Storm rel vorticity (0-3000m) horiz: 5.3 stream: 1.4 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.02 Bulk Shear: 65.64 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 ------------------------------------------------------------------------------- 500 216 2 53 16| 3.4 0.0 3.4| 2.0 -2.9 -0.9 -1.8 -0.08| 3.6 -0.3 1000 240 4 49 15| 2.9 0.0 2.9| 2.0 -10.5 -8.6 -8.6 -0.38| 3.3 -1.2 1500 244 5 47 14| 1.9 1.0 2.9| 2.0 -13.1 -11.0 -7.3 -0.34| 3.2 -1.1 2000 238 6 47 12| 1.5 2.3 3.8| 7.1 -13.1 -6.0 -3.0 -0.00| 4.1 -0.0 2500 225 9 57 10| 1.2 3.2 4.4| 14.8 -13.1 1.7 0.7 0.24| 4.9 1.2 3000 212 11 75 9| 1.0 3.7 4.7| 21.8 -13.1 8.7 2.9 0.26| 5.3 1.4 4000 204 15 107 8| 1.7 2.8 4.4| 49.4 -13.1 36.3 9.1 0.35| 5.1 1.8 5000 202 20 137 10| 2.2 2.2 4.4| 79.8 -13.1 66.7 13.3 0.39| 5.0 1.9 6000 201 24 154 13| 1.8 2.4 4.2| 87.7 -18.4 69.4 11.6 0.35| 4.7 1.6 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250426.12.gif