UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042012.upa.cvt Date: 1200Z 20 APR 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 20 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 35 100 3 SFC 991 109 3.8 -3.2 60 7.0 1.0 100 3 277.7 278.2 274.6 286.1 3.04 2 986 150 7.2 1.2 66 6.0 4.4 101 4 281.5 282.2 278.3 293.3 4.23 3 936 576 3.8 -6.2 48 10.0 -0.0 112 11 282.2 282.7 276.5 289.6 2.56 4 925 672 3.4 -5.6 52 9.0 -0.1 115 13 282.8 283.3 276.9 290.6 2.72 5 885 1030 2.2 -6.8 51 9.0 -1.2 131 8 285.1 285.6 278.0 292.6 2.59 6 850 1354 -0.5 -8.5 55 8.0 -3.4 145 3 285.6 286.0 277.9 292.5 2.36 7 777 2064 -6.5 -10.9 71 4.4 -7.9 150 4 286.6 287.0 278.1 292.9 2.14 8 772 2114 -6.5 -11.0 70 4.5 -7.9 150 4 287.1 287.5 278.3 293.4 2.14 9 730 2549 -9.1 -15.1 62 6.0 -10.8 153 5 288.9 289.2 278.5 293.8 1.62 10 726 2592 -9.1 -16.1 57 7.0 -11.1 153 5 289.4 289.6 278.6 293.9 1.50 11 700 2874 -8.7 -23.7 29 15.0 -12.2 155 5 292.9 293.0 279.3 295.4 0.81 12 697 2907 -8.7 -24.7 26 16.0 -12.3 155 5 293.2 293.3 279.3 295.6 0.74 13 692 2963 -9.1 -27.1 22 18.0 -12.9 156 6 293.4 293.5 279.2 295.3 0.60 14 518 5134 -25.1 -47.1 11 22.0 -26.9 173 21 299.4 299.4 281.2 299.8 0.11 15 500 5390 -27.1 -45.1 16 18.0 -28.6 175 23 300.0 300.0 281.5 300.5 0.14 16 486 5593 -28.9 -44.9 20 16.0 -30.2 176 23 300.2 300.3 281.7 300.7 0.14 17 419 6639 -35.1 -50.1 20 15.0 -36.0 183 23 305.3 305.3 283.7 305.6 0.09 18 400 6960 -37.9 -51.9 22 14.0 -38.6 185 23 305.7 305.7 283.8 306.0 0.08 19 330 8258 -48.3 -57.3 35 9.0 -48.6 188 32 308.7 308.8 284.9 308.9 0.05 20 300 8880 -52.5 -60.5 37 8.0 -52.7 190 36 311.3 311.4 285.8 311.5 0.04 21 259 9818 -59.3 -66.3 40 7.0 -59.4 195 42 314.7 314.7 287.0 314.8 0.02 22 256 9891 -59.3 -66.3 40 7.0 -59.4 193 41 315.8 315.8 287.3 315.8 0.02 23 250 10040 -58.9 -65.9 40 7.0 -59.0 190 40 318.5 318.5 288.3 318.6 0.02 24 247 10116 -58.3 -65.3 40 7.0 -58.4 190 40 320.5 320.5 288.9 320.6 0.02 25 214 11025 -54.1 -61.1 42 7.0 -54.3 187 34 340.4 340.5 294.5 340.6 0.05 26 200 11460 -52.1 -59.1 43 7.0 -52.3 185 31 350.3 350.3 296.7 350.5 0.07 27 164 12749 -48.9 -57.9 34 9.0 -49.3 192 28 376.1 376.1 301.7 376.5 0.09 28 150 13330 -50.9 -59.9 34 9.0 -51.3 195 27 382.4 382.4 302.7 382.7 0.08 29 100 15980 -51.5 -64.5 20 13.0 -52.1 205 9 428.2 428.2 308.7 428.6 0.07 30 95 16313 -52.7 -65.7 19 13.0 -53.3 208 8 432.2 432.2 309.1 432.5 0.06 31 70 18290 -51.9 -66.9 15 15.0 -52.8 225 5 473.4 473.4 313.0 473.8 0.07 32 51 20341 -49.7 -65.7 14 16.0 -51.2 230 7 523.4 523.4 316.5 524.1 0.11 33 50 20470 -50.1 -66.1 14 16.0 -51.5 230 7 525.4 525.4 316.7 526.1 0.11 34 36 22601 -52.5 -69.5 11 17.0 -54.1 211 7 571.0 571.0 319.2 571.6 0.09 35 30 23780 -51.5 -69.5 10 18.0 -53.5 200 7 604.2 604.3 320.8 605.1 0.11 36 20 26420 -51.1 -71.1 7 20.0 -54.1 165 5 679.8 679.8 323.8 680.9 0.13 37 15 28289 -51.1 -71.1 7 20.0 -54.7 738.1 738.1 325.6 739.7 0.17 38 12 29755 -46.5 -68.5 6 22.0 -52.4 803.0 803.1 327.4 806.1 0.32 39 10 30960 -48.1 -70.1 6 22.0 -53.9 840.0 840.2 328.2 843.2 0.30 40 9.7 31161 -48.3 -70.3 6 22.0 -54.2 846.6 846.8 328.4 849.8 0.30 41 8.6 31960 -44.7 -67.7 6 23.0 -52.6 890.3 890.5 329.3 895.8 0.49 TRP 259 9818 -59.3 -66.3 40 7.0 -59.4 195 42 314.7 314.7 287.0 314.8 0.02 WND Sounding variables and indices 1000-500 mb thick: 5355.00 m Freezing level: 856.48 mb = 1293.96 m = 4245.21 ft Wetbulb zero: 936.44 mb = 572.10 m = 1876.94 ft Precipitable water: 0.32 inches Sfc-500 mean rel hum: 37.22 % Est. max temperature: 11.86 C = 53.34 F Sfc-Lift cond lev (LCL): 889.25 mb = 991.01 m = 3251.32 ft T: 2.33 C 700-500 lapse rate: 7.31 C/km ThetaE index: 3.70 C Layer 936.0- 925.0 mb Conv cond level (CCL): 779.42 mb = 2039.00 m = 6689.56 ft Mean mixing ratio: 3.07 g/kg Conv temperature: 12.69 C = 54.83 F Cap Strength: 7.99 C Lifted Index: 8.21 C Risk: None Lifted Index @300 mb: 14.34 C Lifted Index @700 mb: 6.10 C Showalter Index: 7.27 C Risk: None Total Totals Index: 45.20 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.60 C Cross Totals Index: 18.60 C K Index: 3.10 Risk: None Sweat Index: 29.00 Risk: None Energy Index: 1.70 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.77 J/kg Max Up Vert Vel: 5.25 m/s Conv Inhibition (B-): 59013.09 J/kg Cap Strength: 8.15 C Lift Cond Lev (LCL): 827.80 mb = 1563.17 m = 5128.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 194 at 9 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 ---------------------------------------------------------- 0 991 109 100 3 -3.0 0.5 | 33 9 -5.1 -7.8 1 925 672 115 13 -11.8 5.5 | 79 14 -13.9 -2.8 2 850 1354 145 3 -1.7 2.5 | 33 7 -3.9 -5.9 3 700 2874 155 5 -2.1 4.5 | 48 6 -4.2 -3.8 4 500 5390 175 23 -2.0 22.9 | 164 15 -4.1 14.6 5 400 6960 185 23 2.0 22.9 | 180 15 -0.1 14.6 6 300 8880 190 36 6.3 35.5 | 189 27 4.1 27.1 7 259 9818 195 42 10.9 40.6 | 195 33 8.7 32.3 8 250 10040 190 40 6.9 39.4 | 189 31 4.8 31.1 9 200 11460 185 31 2.7 30.9 | 181 23 0.6 22.6 10 150 13330 195 27 7.0 26.1 | 195 18 4.9 17.8 11 100 15980 205 9 3.8 8.2 | 275 2 1.7 -0.2 12 70 18290 225 5 3.5 3.5 | 344 5 1.4 -4.8 13 50 20470 230 7 5.4 4.5 | 320 5 3.2 -3.8 14 30 23780 200 7 2.4 6.6 | 351 2 0.3 -1.7 15 20 26420 165 5 -1.3 4.8 | 45 5 -3.4 -3.5 Wind Parameters Mean winds (0-6000m): 164.4 at 11.4 knts Storm direction: 194.4 at 8.6 knts Shear (0-3000m) pos: 1.0 neg: 0.0 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): 32.3 deg Storm rel helicity (0-3000m) pos: 31.9 neg: -13.6 tot: 18.2 m^2/s^2 ave: 6.1 10^-3 m/s^2 rel: 0.25 Storm rel vorticity (0-3000m) horiz: 4.1 stream: 1.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 1.26 Bulk Shear: 10.96 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 ------------------------------------------------------------------------------- 500 112 7 58 11| 9.2 0.0 9.2| 23.6 0.0 23.6 47.1 0.88| 9.3 8.2 1000 117 9 66 11| 2.3 0.0 2.3| 26.9 -7.1 19.7 19.7 0.37| 8.5 3.2 1500 119 7 60 10| 0.9 0.0 0.9| 27.2 -13.6 13.6 9.1 0.14| 7.0 1.0 2000 123 6 57 9| 0.8 0.0 0.8| 28.2 -13.6 14.6 7.3 0.16| 5.4 0.9 2500 128 6 55 8| 0.8 0.0 0.8| 29.1 -13.6 15.4 6.2 0.18| 4.5 0.8 3000 132 6 55 8| 1.0 0.0 1.0| 31.9 -13.6 18.2 6.1 0.25| 4.1 1.0 4000 144 7 66 7| 1.7 0.0 1.7| 42.1 -13.6 28.5 7.1 0.40| 4.0 1.6 5000 156 9 90 6| 2.1 0.0 2.1| 55.5 -13.6 41.8 8.4 0.45| 4.0 1.8 6000 164 11 117 6| 1.9 0.0 1.9| 67.4 -13.6 53.8 9.0 0.48| 3.7 1.8 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20250420.12.gif