UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102000.upa.cvt Date: 0000Z 20 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 20 OCT 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 169 SFC 927 741 -18.1 -21.8 73 3.7 -18.7 30 1 260.6 260.8 259.2 262.6 0.72 2 925 757 -18.3 -22.7 68 4.4 -19.0 25 1 260.6 260.7 259.0 262.4 0.67 3 893 1023 -13.9 -16.6 80 2.7 -14.5 15 4 267.8 268.0 265.3 271.0 1.17 4 850 1397 -15.1 -18.6 75 3.5 -15.8 360 9 270.3 270.5 266.8 273.3 1.04 5 786 1985 -16.5 -20.1 74 3.6 -17.2 4 10 274.9 275.1 269.8 277.8 0.98 6 700 2844 -22.5 -25.9 74 3.4 -23.0 10 11 277.6 277.7 270.9 279.5 0.66 7 607 3877 -30.7 -33.4 77 2.7 -31.0 10 16 279.7 279.7 271.6 280.8 0.38 8 568 4348 -32.9 -35.5 77 2.6 -33.1 10 18 282.4 282.5 273.2 283.5 0.33 9 510 5103 -36.3 -42.3 54 6.0 -36.7 10 22 287.1 287.2 275.5 287.8 0.18 10 500 5240 -37.5 -43.5 53 6.0 -37.8 10 23 287.3 287.3 275.5 287.9 0.16 11 445 6026 -42.7 -49.7 46 7.0 -43.0 7 22 290.5 290.5 277.0 290.8 0.09 12 400 6730 -47.3 -54.3 45 7.0 -47.5 5 21 293.5 293.5 278.5 293.7 0.06 13 338 7836 -53.7 -60.7 42 7.0 -53.8 360 21 299.3 299.3 281.1 299.4 0.03 14 300 8610 -52.5 -59.5 43 7.0 -52.7 355 17 311.3 311.4 285.9 311.5 0.04 15 297 8675 -51.5 -59.5 38 8.0 -51.7 355 17 313.7 313.7 286.7 313.8 0.04 16 263 9462 -53.9 -61.9 37 8.0 -54.1 355 18 321.2 321.2 289.2 321.4 0.04 17 250 9790 -51.9 -60.9 33 9.0 -52.1 355 19 328.9 328.9 291.5 329.1 0.04 18 249 9816 -50.5 -59.5 34 9.0 -50.7 355 19 331.4 331.4 292.2 331.6 0.05 19 200 11240 -50.5 -62.5 23 12.0 -50.8 350 15 352.8 352.8 297.3 353.0 0.04 20 194 11438 -50.9 -63.9 20 13.0 -51.2 353 15 355.2 355.3 297.8 355.4 0.04 21 187 11678 -48.3 -62.3 18 14.0 -48.8 356 15 363.2 363.2 299.4 363.4 0.05 22 173 12186 -51.1 -65.1 17 14.0 -51.5 3 14 366.7 366.8 300.0 366.9 0.03 23 150 13110 -51.7 -68.7 11 17.0 -52.2 15 13 381.0 381.0 302.4 381.1 0.02 24 100 15740 -52.7 -73.7 6 21.0 -53.4 25 7 425.9 425.9 308.4 426.0 0.02 25 70 18040 -53.9 -76.9 4 23.0 -54.7 305 3 469.1 469.1 312.5 469.2 0.02 26 53 19825 -54.3 -78.3 4 24.0 -55.3 231 6 507.0 507.0 315.4 507.1 0.02 27 50 20200 -52.1 -76.1 4 24.0 -53.4 215 7 520.7 520.7 316.4 520.9 0.02 28 42 21324 -52.7 -76.7 4 24.0 -54.2 222 10 545.8 545.8 317.9 546.0 0.03 29 41 21479 -52.1 -76.1 4 24.0 -53.7 223 11 551.1 551.1 318.2 551.3 0.03 30 33 22889 -49.9 -74.9 4 25.0 -52.2 231 15 592.2 592.3 320.3 592.6 0.04 31 30 23510 -50.3 -75.3 4 25.0 -52.7 235 17 607.5 607.5 321.0 607.9 0.05 32 25 24701 -50.7 -75.7 4 25.0 -53.4 228 22 638.9 638.9 322.3 639.3 0.05 33 21 25847 -47.1 -73.1 4 26.0 -51.2 222 28 682.4 682.5 323.9 683.2 0.09 34 20 26170 -47.5 -73.5 3 26.0 -51.7 220 29 690.8 690.8 324.1 691.6 0.09 35 16 27642 -48.5 -73.5 4 25.0 -52.9 733.0 733.1 325.5 734.1 0.11 36 14 28529 -43.9 -69.9 4 26.0 -50.5 777.2 777.3 326.7 779.3 0.22 37 10 30774 -46.9 -72.9 4 26.0 -53.5 844.5 844.6 328.3 846.6 0.20 38 10 30774 -43.3 -69.3 4 26.0 -51.4 857.9 858.1 328.7 861.5 0.34 TRP 338 7836 -53.7 -60.7 42 7.0 -53.8 360 21 299.3 299.3 281.1 299.4 0.03 WND Sounding variables and indices 1000-500 mb thick: 5071.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.13 inches Sfc-500 mean rel hum: 72.80 % Est. max temperature: -3.84 C = 25.09 F Sfc-Lift cond lev (LCL): 872.35 mb = 1200.08 m = 3937.23 ft T: -14.47 C 700-500 lapse rate: 6.26 C/km ThetaE index: 0.18 C Layer 925.0- 893.0 mb Conv cond level (CCL): 927.00 mb = 740.72 m = 2430.16 ft Mean mixing ratio: 1.02 g/kg Conv temperature: -17.78 C = -0.01 F Cap Strength: 13.72 C Lifted Index: 13.75 C Risk: None Lifted Index @300 mb: 28.75 C Lifted Index @700 mb: 7.36 C Showalter Index: 11.76 C Risk: None Total Totals Index: 41.30 C Risk: None Vertical Totals Index: 22.40 C Cross Totals Index: 18.90 C K Index: 0.40 Risk: None Sweat Index: 41.00 Risk: None Energy Index: 3.07 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 41.13 J/kg Max Up Vert Vel: 9.07 m/s Conv Inhibition (B-): 78696.05 J/kg Cap Strength: 13.75 C Lift Cond Lev (LCL): 830.98 mb = 1567.13 m = 5141.45 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 38 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 ---------------------------------------------------------- 0 927 741 30 1 -0.5 -0.9 | 219 11 6.7 8.3 1 925 757 25 1 -0.4 -0.9 | 219 11 6.8 8.2 2 850 1397 360 9 -0.0 -9.0 | 269 7 7.2 0.1 3 700 2844 10 11 -1.9 -10.8 | 288 6 5.3 -1.7 4 500 5240 10 23 -4.0 -22.7 | 347 14 3.2 -13.5 5 400 6730 5 21 -1.8 -20.9 | 336 13 5.3 -11.8 6 338 7836 360 21 -0.0 -21.0 | 329 14 7.2 -11.9 7 300 8610 355 17 1.5 -16.9 | 312 12 8.7 -7.8 8 250 9790 355 19 1.7 -18.9 | 318 13 8.8 -9.8 9 200 11240 350 15 2.6 -14.8 | 300 11 9.8 -5.7 10 150 13110 15 13 -3.4 -12.6 | 312 5 3.8 -3.4 11 100 15740 25 7 -3.0 -6.3 | 237 5 4.2 2.8 12 70 18040 305 3 2.5 -1.7 | 232 12 9.6 7.4 13 50 20200 215 7 4.0 5.7 | 217 19 11.2 14.9 14 30 23510 235 17 13.9 9.8 | 228 28 21.1 18.9 15 20 26170 220 29 18.6 22.2 | 219 41 25.8 31.3 Wind Parameters Mean winds (0-6000m): 8.2 at 15.5 knts Storm direction: 38.2 at 11.6 knts Shear (0-3000m) pos: 0.7 neg: 1.9 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 104.9 deg Storm rel helicity (0-3000m) pos: 23.2 neg: 0.0 tot: 23.2 m^2/s^2 ave: 7.7 10^-3 m/s^2 rel: 0.81 Storm rel vorticity (0-3000m) horiz: 2.7 stream: 2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 2.33 Bulk Shear: 17.65 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 9 4 231 8| 0.0 6.3 6.3| 9.4 0.0 9.4 18.7 0.72| 6.4 4.6 1000 2 6 248 7| 0.0 4.4 4.4| 14.0 0.0 14.0 14.0 0.79| 4.6 3.6 1500 3 8 257 7| 0.3 2.9 3.3| 15.2 0.0 15.2 10.2 0.79| 3.4 2.7 2000 5 8 262 7| 0.5 2.2 2.7| 16.4 0.0 16.4 8.2 0.79| 2.8 2.2 2500 6 9 268 6| 0.8 1.8 2.6| 19.5 0.0 19.5 7.8 0.81| 2.7 2.2 3000 7 10 276 6| 0.7 1.9 2.6| 23.2 0.0 23.2 7.7 0.81| 2.7 2.2 4000 8 12 296 6| 0.5 2.1 2.6| 30.4 0.0 30.4 7.6 0.76| 2.6 2.0 5000 9 14 313 7| 0.4 1.8 2.2| 34.0 -3.2 30.8 6.2 0.65| 2.5 1.6 6000 8 15 321 8| 0.3 1.4 1.8| 34.0 -9.3 24.7 4.1 0.54| 2.2 1.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251020.00.gif