UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101700.upa.cvt Date: 0000Z 17 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 17 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 251 SFC 937 742 -17.7 -21.2 74 3.5 -18.3 180 1 260.2 260.4 258.9 262.3 0.75 2 925 840 -15.7 -19.5 73 3.8 -16.4 240 3 263.3 263.4 261.5 265.7 0.88 3 913 939 -14.3 -18.0 73 3.7 -15.0 255 4 265.7 265.8 263.6 268.5 1.01 4 862 1372 -16.3 -19.3 78 3.0 -16.9 323 8 268.0 268.2 265.1 270.7 0.96 5 850 1478 -15.5 -18.4 78 2.9 -16.1 340 9 269.9 270.1 266.6 272.9 1.05 6 826 1695 -11.9 -15.0 78 3.1 -12.7 346 10 275.9 276.2 271.2 280.1 1.44 7 774 2192 -11.3 -16.2 67 4.9 -12.5 359 11 281.8 282.0 274.5 285.8 1.39 8 700 2953 -16.5 -22.5 60 6.0 -17.7 20 13 284.2 284.4 275.0 286.9 0.90 9 596 4138 -24.3 -30.3 58 6.0 -25.1 20 20 288.5 288.6 276.7 290.2 0.52 10 557 4628 -25.7 -30.7 63 5.0 -26.3 20 23 292.5 292.6 278.7 294.2 0.53 11 500 5400 -30.7 -36.7 56 6.0 -31.3 20 27 295.6 295.7 279.8 296.7 0.33 12 443 6261 -35.5 -41.5 54 6.0 -36.0 31 32 300.0 300.0 281.7 300.7 0.23 13 400 6970 -41.5 -47.5 52 6.0 -41.8 40 36 301.1 301.1 282.0 301.5 0.13 14 315 8547 -53.1 -59.1 48 6.0 -53.2 44 41 306.2 306.2 284.0 306.4 0.04 15 300 8860 -54.9 -60.9 47 6.0 -55.0 45 42 308.0 308.0 284.6 308.1 0.04 16 250 10010 -61.7 -67.7 45 6.0 -61.7 55 44 314.3 314.3 286.9 314.4 0.02 17 228 10573 -65.1 -71.1 43 6.0 -65.1 50 38 317.5 317.5 287.9 317.6 0.01 18 227 10600 -65.1 -71.1 43 6.0 -65.1 50 38 317.9 317.9 288.1 318.0 0.01 19 200 11380 -58.7 -64.7 46 6.0 -58.8 35 25 339.8 339.8 294.3 339.9 0.03 20 197 11475 -57.5 -64.5 41 7.0 -57.6 35 25 343.2 343.2 295.1 343.3 0.03 21 170 12412 -54.3 -62.3 37 8.0 -54.5 32 20 363.3 363.3 299.4 363.5 0.05 22 151 13168 -56.5 -65.5 31 9.0 -56.7 30 17 372.0 372.0 300.9 372.2 0.04 23 150 13210 -55.1 -64.1 32 9.0 -55.4 30 17 375.1 375.2 301.5 375.4 0.05 24 141 13605 -52.5 -62.5 29 10.0 -52.9 32 15 386.4 386.4 303.3 386.7 0.06 25 104 15559 -53.5 -68.5 14 15.0 -54.0 39 8 419.6 419.6 307.7 419.8 0.04 26 100 15810 -53.5 -68.5 14 15.0 -54.1 40 7 424.4 424.4 308.2 424.6 0.04 27 70 18100 -54.1 -73.1 8 19.0 -54.9 140 3 468.6 468.7 312.5 468.8 0.03 28 52 20000 -55.7 -76.7 6 21.0 -56.6 211 3 506.5 506.5 315.4 506.6 0.02 29 50 20250 -54.9 -76.9 5 22.0 -55.9 220 3 514.1 514.1 315.9 514.2 0.02 30 46 20785 -52.5 -74.5 5 22.0 -53.9 219 4 532.3 532.3 317.1 532.5 0.03 31 30 23560 -50.1 -75.1 4 25.0 -52.6 215 7 608.1 608.1 321.0 608.4 0.05 32 20 26230 -46.9 -72.9 4 26.0 -51.2 225 19 692.6 692.7 324.2 693.5 0.10 33 15 28123 -50.1 -75.1 4 25.0 -54.2 215 17 741.4 741.4 325.7 742.2 0.10 34 10 30780 -48.9 -73.9 4 25.0 -54.6 200 15 837.0 837.1 328.1 838.8 0.17 35 8.9 31548 -47.3 -73.3 4 26.0 -54.1 871.6 871.7 328.9 873.8 0.21 TRP 227 10600 -65.1 -71.1 43 6.0 -65.1 50 38 317.9 317.9 288.1 318.0 0.01 WND Sounding variables and indices 1000-500 mb thick: 5149.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.17 inches Sfc-500 mean rel hum: 64.56 % Est. max temperature: 1.93 C = 35.48 F Sfc-Lift cond lev (LCL): 884.71 mb = 1176.19 m = 3858.85 ft T: -15.40 C 700-500 lapse rate: 5.80 C/km ThetaE index: 0.00 C Layer 937.0- -0.0 mb Conv cond level (CCL): 613.47 mb = 3925.51 m = 12878.82 ft Mean mixing ratio: 0.99 g/kg Conv temperature: 9.33 C = 48.79 F Cap Strength: 19.69 C Lifted Index: 21.43 C Risk: None Lifted Index @300 mb: 27.17 C Lifted Index @700 mb: 14.27 C Showalter Index: 18.85 C Risk: None Total Totals Index: 27.50 C Risk: None Vertical Totals Index: 15.20 C Cross Totals Index: 12.30 C K Index: -9.20 Risk: None Sweat Index: 45.00 Risk: None Energy Index: 5.07 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 28.55 J/kg Max Up Vert Vel: 7.56 m/s Conv Inhibition (B-): 83146.73 J/kg Cap Strength: 21.17 C Lift Cond Lev (LCL): 839.28 mb = 1574.18 m = 5164.56 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 50 at 14 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 ---------------------------------------------------------- 0 937 742 180 1 0.0 1.0 | 227 15 10.7 9.9 1 925 840 240 3 2.6 1.5 | 232 17 13.3 10.4 2 850 1478 340 9 3.1 -8.5 | 268 14 13.8 0.5 3 700 2953 20 13 -4.4 -12.2 | 298 7 6.3 -3.3 4 500 5400 20 27 -9.2 -25.4 | 355 17 1.5 -16.4 5 400 6970 40 36 -23.1 -27.6 | 34 22 -12.4 -18.6 6 300 8860 45 42 -29.7 -29.7 | 42 28 -19.0 -20.8 7 250 10010 55 44 -36.0 -25.2 | 57 30 -25.3 -16.3 8 227 10600 50 38 -29.1 -24.4 | 50 24 -18.4 -15.5 9 200 11380 35 25 -14.3 -20.5 | 17 12 -3.6 -11.5 10 150 13210 30 17 -8.5 -14.7 | 339 6 2.2 -5.8 11 100 15810 40 7 -4.5 -5.4 | 240 7 6.2 3.6 12 70 18100 140 3 -1.9 2.3 | 218 14 8.8 11.2 13 50 20250 220 3 1.9 2.3 | 228 17 12.7 11.2 14 30 23560 215 7 4.0 5.7 | 225 21 14.7 14.7 15 20 26230 225 19 13.4 13.4 | 227 33 24.2 22.4 16 10 30780 200 15 5.1 14.1 | 215 28 15.9 23.0 Wind Parameters Mean winds (0-6000m): 20.2 at 18.6 knts Storm direction: 50.2 at 14.0 knts Shear (0-3000m) pos: 2.7 neg: 0.5 tot: 3.2 10-3/s Storm rel Dir Shear (0-3000m): 100.6 deg Storm rel helicity (0-3000m) pos: 76.4 neg: 0.0 tot: 76.4 m^2/s^2 ave: 25.5 10^-3 m/s^2 rel: 0.77 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.55 Bulk Shear: 52.07 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 ------------------------------------------------------------------------------- 500 280 4 241 17| 7.6 0.0 7.6| 34.6 0.0 34.6 69.2 0.82| 9.5 7.8 1000 329 6 256 14| 5.5 0.0 5.5| 56.1 0.0 56.1 56.1 0.80| 8.3 6.6 1500 342 8 263 13| 4.1 0.0 4.1| 62.0 0.0 62.0 41.3 0.78| 6.5 5.1 2000 353 9 269 12| 3.4 0.0 3.4| 66.5 0.0 66.5 33.2 0.75| 5.7 4.3 2500 1 10 274 11| 3.2 0.0 3.2| 71.1 0.0 71.1 28.4 0.75| 5.2 3.9 3000 6 11 280 10| 2.7 0.5 3.2| 76.4 0.0 76.4 25.5 0.77| 4.8 3.7 4000 12 13 296 9| 2.0 1.1 3.1| 87.0 0.0 87.0 21.8 0.75| 4.3 3.2 5000 15 16 314 9| 1.9 1.2 3.1|106.2 0.0 106.2 21.2 0.74| 4.1 3.0 6000 20 19 333 10| 2.1 1.0 3.1|148.4 0.0 148.4 24.7 0.77| 4.2 3.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251017.00.gif