UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025102112.upa.cvt Date: 1200Z 21 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 21 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 229 SFC 933 740 -23.7 -27.1 74 3.4 -24.1 170 1 254.4 254.5 253.5 255.7 0.44 2 925 804 -21.9 -25.1 75 3.2 -22.3 240 3 256.9 257.0 255.8 258.4 0.54 3 871 1254 -13.9 -17.4 75 3.5 -14.6 315 10 269.7 269.9 266.6 272.8 1.12 4 850 1439 -14.7 -18.4 73 3.7 -15.4 345 13 270.7 270.9 267.2 273.7 1.05 5 826 1654 -15.3 -19.1 73 3.8 -16.0 352 14 272.3 272.5 268.2 275.3 1.02 6 700 2873 -24.5 -28.2 71 3.7 -24.9 30 19 275.4 275.4 269.2 277.0 0.54 7 675 3138 -26.7 -29.9 74 3.2 -27.1 31 19 275.8 275.9 269.4 277.2 0.47 8 520 5004 -32.9 -37.2 65 4.3 -33.3 34 19 289.7 289.7 277.0 290.6 0.30 9 500 5280 -34.9 -39.3 64 4.4 -35.2 35 19 290.5 290.5 277.3 291.3 0.25 10 406 6701 -45.9 -50.2 62 4.3 -46.0 12 23 294.1 294.1 278.8 294.4 0.10 11 400 6800 -46.5 -50.9 61 4.4 -46.6 10 23 294.6 294.6 279.0 294.9 0.09 12 321 8230 -55.5 -59.7 59 4.2 -55.6 10 34 301.2 301.2 281.9 301.4 0.04 13 300 8660 -56.7 -61.0 58 4.3 -56.8 10 38 305.4 305.4 283.6 305.6 0.03 14 266 9420 -59.3 -63.7 57 4.4 -59.3 15 38 312.3 312.3 286.2 312.4 0.03 15 262 9515 -59.5 -63.8 57 4.3 -59.6 15 38 313.4 313.4 286.6 313.5 0.03 16 250 9810 -58.9 -63.3 57 4.4 -59.0 15 36 318.5 318.5 288.3 318.6 0.03 17 200 11230 -53.7 -58.3 57 4.6 -53.8 10 27 347.7 347.7 296.2 348.0 0.07 18 196 11360 -52.7 -57.4 57 4.7 -52.9 10 26 351.3 351.4 297.0 351.7 0.08 19 165 12467 -54.7 -59.5 55 4.8 -54.9 10 20 365.7 365.7 299.8 366.1 0.08 20 150 13080 -52.3 -57.3 55 5.0 -52.5 10 17 380.0 380.0 302.3 380.5 0.11 21 149 13123 -50.9 -55.9 55 5.0 -51.1 10 17 383.1 383.1 302.8 383.7 0.13 22 104 15438 -53.3 -59.3 48 6.0 -53.7 356 6 420.0 420.0 307.8 420.6 0.12 23 100 15690 -53.1 -59.1 48 6.0 -53.4 355 5 425.1 425.2 308.4 425.8 0.13 24 70 17980 -55.7 -61.7 47 6.0 -56.1 350 5 465.2 465.3 312.3 466.0 0.14 25 53 19749 -55.9 -62.9 41 7.0 -56.4 263 8 503.3 503.3 315.2 504.2 0.15 26 50 20120 -55.3 -62.3 41 7.0 -55.9 245 9 513.2 513.2 315.9 514.3 0.18 27 30 23410 -52.3 -59.3 43 7.0 -53.5 220 19 602.1 602.2 320.9 605.3 0.43 28 26 24333 -51.9 -59.9 38 8.0 -53.4 222 25 628.3 628.5 322.0 631.9 0.46 29 20 26050 -46.3 -54.3 40 8.0 -49.0 225 36 694.5 695.0 324.6 704.6 1.19 30 19 26391 -45.7 -54.7 36 9.0 -48.8 230 35 706.6 707.1 325.0 716.9 1.20 31 10 30670 -45.5 -55.5 32 10.0 -50.2 290 23 849.7 850.8 328.8 871.4 2.07 32 9.6 30942 -45.3 -55.3 32 10.0 -50.1 860.4 861.6 329.1 883.9 2.21 TRP 266 9420 -59.3 -63.7 57 4.4 -59.3 15 38 312.3 312.3 286.2 312.4 0.03 WND Sounding variables and indices 1000-500 mb thick: 5051.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.14 inches Sfc-500 mean rel hum: 71.12 % Est. max temperature: -5.17 C = 22.69 F Sfc-Lift cond lev (LCL): 881.62 mb = 1163.28 m = 3816.51 ft T: -15.51 C 700-500 lapse rate: 4.32 C/km ThetaE index: 0.00 C Layer 933.0- 0.0 mb Conv cond level (CCL): 933.00 mb = 740.30 m = 2428.79 ft Mean mixing ratio: 0.90 g/kg Conv temperature: -19.21 C = -2.57 F Cap Strength: 18.00 C Lifted Index: 18.46 C Risk: None Lifted Index @300 mb: 26.42 C Lifted Index @700 mb: 7.50 C Showalter Index: 13.98 C Risk: None Total Totals Index: 36.70 C Risk: None Vertical Totals Index: 20.20 C Cross Totals Index: 16.50 C K Index: -1.90 Risk: None Sweat Index: 45.00 Risk: None Energy Index: 3.63 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 64.35 J/kg Max Up Vert Vel: 11.35 m/s Conv Inhibition (B-): 81002.06 J/kg Cap Strength: 18.24 C Lift Cond Lev (LCL): 839.98 mb = 1527.98 m = 5012.99 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 53 at 13 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 ---------------------------------------------------------- 0 933 740 170 1 -0.2 1.0 | 229 14 10.3 8.9 1 925 804 240 3 2.6 1.5 | 234 16 13.1 9.4 2 850 1439 345 13 3.4 -12.6 | 289 15 13.8 -4.7 3 700 2873 30 19 -9.5 -16.5 | 353 9 1.0 -8.5 4 500 5280 35 19 -10.9 -15.6 | 3 8 -0.4 -7.7 5 400 6800 10 23 -4.0 -22.7 | 336 16 6.5 -14.7 6 300 8660 10 38 -6.6 -37.4 | 353 30 3.9 -29.5 7 266 9420 15 38 -9.8 -36.7 | 359 29 0.6 -28.8 8 250 9810 15 36 -9.3 -34.8 | 358 27 1.2 -26.9 9 200 11230 10 27 -4.7 -26.6 | 343 20 5.8 -18.7 10 150 13080 10 17 -3.0 -16.7 | 320 12 7.5 -8.8 11 100 15690 355 5 0.4 -5.0 | 255 11 10.9 2.9 12 70 17980 350 5 0.9 -4.9 | 255 12 11.4 3.0 13 50 20120 245 9 8.2 3.8 | 238 22 18.6 11.7 14 30 23410 220 19 12.2 14.6 | 225 32 22.7 22.5 15 20 26050 225 36 25.5 25.5 | 227 49 35.9 33.4 16 10 30670 290 23 21.6 -7.9 | 270 32 32.1 0.0 Wind Parameters Mean winds (0-6000m): 23.0 at 17.5 knts Storm direction: 53.0 at 13.1 knts Shear (0-3000m) pos: 3.4 neg: 0.0 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 127.5 deg Storm rel helicity (0-3000m) pos: 118.6 neg: 0.0 tot: 118.6 m^2/s^2 ave: 39.5 10^-3 m/s^2 rel: 0.87 Storm rel vorticity (0-3000m) horiz: 6.1 stream: 5.3 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 1.45 Bulk Shear: 44.23 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 ------------------------------------------------------------------------------- 500 295 6 251 17| 11.0 0.0 11.0| 52.1 0.0 52.1 104.1 0.83| 13.9 11.5 1000 340 9 273 14| 7.8 0.0 7.8| 88.3 0.0 88.3 88.3 0.86| 12.0 10.3 1500 352 11 285 13| 5.9 0.0 5.9|101.7 0.0 101.7 67.8 0.86| 9.6 8.3 2000 3 13 297 11| 5.0 0.0 5.0|114.2 0.0 114.2 57.1 0.87| 8.5 7.4 2500 11 14 307 10| 4.1 0.0 4.1|118.0 0.0 118.0 47.2 0.87| 7.2 6.3 3000 15 15 314 9| 3.4 0.0 3.4|118.6 0.0 118.6 39.5 0.87| 6.1 5.3 4000 21 16 326 8| 2.5 0.0 2.5|119.8 0.0 119.8 29.9 0.87| 4.6 4.0 5000 24 17 333 8| 2.0 0.3 2.3|120.4 -3.5 116.9 23.4 0.77| 4.0 3.1 6000 23 18 336 9| 1.7 0.8 2.5|120.4 -15.9 104.5 17.4 0.58| 3.9 2.3 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251021.12.gif