UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042312.upa.cvt Date: 1200Z 23 APR 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 23 APR 25 Station: U4688 WMO ident: 24688 Latitude: 63.27 Longitude: 143.15 ------------------------------------------------------------------------------- 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 92 1 925 731 100 1 SFC 924 740 4.2 -9.8 35 14.0 -0.8 100 1 283.7 284.0 276.3 289.4 1.96 3 914 829 5.4 -7.6 39 13.0 0.4 101 3 285.8 286.2 278.0 292.7 2.36 4 850 1417 1.0 -15.0 29 16.0 -4.0 105 15 287.2 287.4 277.3 291.4 1.40 5 771 2192 -5.3 -17.3 38 12.0 -8.7 110 15 288.5 288.8 277.9 292.4 1.27 6 730 2620 -6.3 -23.3 25 17.0 -10.4 113 15 292.0 292.1 278.9 294.5 0.80 7 700 2947 -9.1 -19.1 44 10.0 -11.7 115 15 292.4 292.6 279.6 296.1 1.21 8 618 3896 -15.9 -37.9 13 22.0 -18.9 119 16 295.2 295.3 279.6 296.0 0.24 9 584 4320 -17.9 -42.9 9 25.0 -20.8 120 17 297.7 297.7 280.6 298.2 0.15 10 502 5431 -26.1 -50.1 9 24.0 -27.9 125 19 300.9 300.9 281.8 301.2 0.08 11 500 5460 -26.5 -49.5 10 23.0 -28.2 125 19 300.7 300.7 281.8 301.0 0.08 12 425 6610 -35.5 -42.5 49 7.0 -36.0 132 23 303.5 303.6 283.1 304.3 0.21 13 400 7030 -37.1 -43.1 54 6.0 -37.5 135 25 306.8 306.8 284.4 307.5 0.21 14 381 7365 -38.7 -44.7 53 6.0 -39.1 143 28 309.0 309.0 285.2 309.6 0.19 15 379 7401 -39.1 -45.1 53 6.0 -39.5 144 29 308.9 308.9 285.1 309.6 0.18 16 300 8960 -50.9 -55.9 55 5.0 -51.0 185 44 313.6 313.6 286.7 313.9 0.07 17 265 9760 -57.3 -62.3 53 5.0 -57.4 185 44 315.6 315.6 287.3 315.7 0.03 18 250 10130 -57.5 -62.5 53 5.0 -57.6 175 36 320.6 320.6 288.9 320.7 0.03 19 232 10603 -57.9 -62.9 53 5.0 -58.0 172 33 326.9 326.9 290.9 327.0 0.03 20 201 11518 -54.1 -59.1 54 5.0 -54.2 165 27 346.6 346.6 296.0 346.9 0.07 21 200 11550 -53.9 -58.9 54 5.0 -54.1 165 27 347.4 347.4 296.1 347.7 0.07 22 151 13357 -50.3 -59.3 34 9.0 -50.7 155 17 382.7 382.7 302.8 383.1 0.09 23 150 13400 -50.3 -59.3 34 9.0 -50.7 155 17 383.4 383.4 302.9 383.8 0.09 24 101 15966 -51.7 -65.7 17 14.0 -52.4 155 15 426.6 426.6 308.5 426.9 0.06 25 100 16030 -52.1 -67.1 15 15.0 -52.7 155 15 427.1 427.1 308.6 427.3 0.05 26 78 17633 -53.9 -69.9 12 16.0 -54.6 148 14 454.8 454.8 311.3 455.0 0.04 27 70 18330 -52.9 -69.9 11 17.0 -53.8 145 13 471.2 471.2 312.8 471.5 0.04 28 50 20500 -51.9 -71.9 7 20.0 -53.2 130 9 521.2 521.2 316.4 521.5 0.05 29 39 22111 -52.9 -73.9 6 21.0 -54.4 132 9 557.0 557.0 318.5 557.3 0.04 30 37 22452 -52.5 -73.5 6 21.0 -54.1 133 9 566.5 566.5 319.0 566.8 0.05 31 33 23192 -52.9 -73.9 6 21.0 -54.6 134 9 584.3 584.3 319.9 584.7 0.05 32 30 23810 -51.9 -73.9 5 22.0 -53.9 135 9 603.2 603.2 320.7 603.6 0.06 33 26 24738 -52.7 -74.7 5 22.0 -54.8 112 8 626.1 626.1 321.7 626.5 0.06 34 22 25815 -54.3 -76.3 5 22.0 -56.4 85 7 651.9 652.0 322.8 652.4 0.05 35 21 26114 -54.1 -76.1 5 22.0 -56.3 78 7 661.3 661.3 323.1 661.8 0.06 36 21 26114 -53.1 -75.1 5 22.0 -55.5 78 7 664.3 664.3 323.2 664.9 0.07 37 20 26430 -52.3 -74.3 5 22.0 -55.0 70 7 676.1 676.1 323.7 676.8 0.08 38 14 28753 -49.3 -73.3 4 24.0 -53.8 758.9 758.9 326.2 760.1 0.13 39 13 29238 -49.9 -73.9 4 24.0 -54.4 773.0 773.1 326.6 774.3 0.13 40 11 30343 -44.9 -69.9 4 25.0 -51.9 829.0 829.2 328.0 831.9 0.28 TRP 265 9760 -57.3 -62.3 53 5.0 -57.4 185 44 315.6 315.6 287.3 315.7 0.03 WND Sounding variables and indices 1000-500 mb thick: 5368.00 m Freezing level: 837.46 mb = 1540.03 m = 5052.54 ft Wetbulb zero: Below ground Precipitable water: 0.18 inches Sfc-500 mean rel hum: 24.27 % Est. max temperature: 8.88 C = 47.99 F Sfc-Lift cond lev (LCL): 743.26 mb = 2479.28 m = 8134.01 ft T: -5.97 C 700-500 lapse rate: 6.92 C/km ThetaE index: 1.27 C Layer 850.0- 771.0 mb Conv cond level (CCL): 614.28 mb = 3941.44 m = 12931.09 ft Mean mixing ratio: 1.77 g/kg Conv temperature: 15.72 C = 60.30 F Cap Strength: 8.51 C Lifted Index: 8.34 C Risk: None Lifted Index @300 mb: 15.47 C Lifted Index @700 mb: 5.26 C Showalter Index: 8.67 C Risk: None Total Totals Index: 39.00 C Risk: None Vertical Totals Index: 27.50 C Cross Totals Index: 11.50 C K Index: 2.50 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 2.04 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.39 J/kg Max Up Vert Vel: 3.84 m/s Conv Inhibition (B-): 58046.07 J/kg Cap Strength: 8.38 C Lift Cond Lev (LCL): 697.90 mb = 2969.92 m = 9743.71 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 150 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 ---------------------------------------------------------- 0 924 740 100 1 -1.0 0.2 | 334 12 5.2 -10.6 1 850 1417 105 15 -14.5 3.9 | 50 11 -8.3 -6.9 2 700 2947 115 15 -13.6 6.3 | 59 9 -7.4 -4.4 3 500 5460 125 19 -15.6 10.9 | 91 9 -9.4 0.1 4 400 7030 135 25 -17.7 17.7 | 121 13 -11.5 6.9 5 300 8960 185 44 3.8 43.8 | 197 35 10.0 33.1 6 265 9760 185 44 3.8 43.8 | 197 35 10.0 33.1 7 250 10130 175 36 -3.1 35.9 | 187 25 3.1 25.1 8 200 11550 165 27 -7.0 26.1 | 177 15 -0.8 15.3 9 150 13400 155 17 -7.2 15.4 | 168 5 -1.0 4.6 10 100 16030 155 15 -6.3 13.6 | 177 3 -0.1 2.8 11 70 18330 145 13 -7.5 10.6 | 85 1 -1.3 -0.1 12 50 20500 130 9 -6.9 5.8 | 8 5 -0.7 -5.0 13 30 23810 135 9 -6.4 6.4 | 2 4 -0.2 -4.4 14 20 26430 70 7 -6.6 -2.4 | 2 13 -0.4 -13.2 Wind Parameters Mean winds (0-6000m): 120.0 at 16.6 knts Storm direction: 150.0 at 12.4 knts Shear (0-3000m) pos: 2.6 neg: 0.0 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 95.5 deg Storm rel helicity (0-3000m) pos: 41.5 neg: 0.0 tot: 41.5 m^2/s^2 ave: 13.8 10^-3 m/s^2 rel: 0.89 Storm rel vorticity (0-3000m) horiz: 3.1 stream: 2.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.48 Bulk Shear: 15.43 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 ------------------------------------------------------------------------------- 500 105 6 358 9| 10.6 0.0 10.6| 25.2 0.0 25.2 50.4 0.94| 10.7 10.0 1000 105 10 24 9| 7.2 0.0 7.2| 35.1 0.0 35.1 35.1 0.93| 7.5 6.9 1500 107 12 35 9| 4.8 0.0 4.8| 36.3 0.0 36.3 24.2 0.91| 5.3 4.8 2000 108 13 41 9| 3.6 0.0 3.6| 37.5 0.0 37.5 18.8 0.89| 4.2 3.7 2500 110 13 44 9| 3.0 0.0 3.0| 39.3 0.0 39.3 15.7 0.88| 3.5 3.1 3000 111 14 48 9| 2.6 0.0 2.6| 41.5 0.0 41.5 13.8 0.89| 3.1 2.8 4000 114 14 55 9| 2.2 0.0 2.2| 46.1 0.0 46.1 11.5 0.90| 2.6 2.3 5000 117 15 63 8| 2.0 0.0 2.0| 52.3 0.0 52.3 10.5 0.90| 2.3 2.1 6000 120 17 73 9| 2.0 0.0 2.0| 63.3 0.0 63.3 10.5 0.89| 2.3 2.1 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20250423.12.gif