UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101400.upa.cvt Date: 0000Z 14 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 14 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 170 SFC 930 733 -8.9 -14.9 62 6.0 -10.4 300 5 269.8 270.0 267.0 273.4 1.29 2 925 775 -9.7 -16.7 57 7.0 -11.3 305 5 269.4 269.6 266.4 272.5 1.12 3 850 1422 -16.5 -21.3 66 4.8 -17.3 265 5 268.9 269.0 265.5 271.2 0.82 4 840 1511 -17.3 -21.6 69 4.3 -18.0 274 5 268.9 269.1 265.5 271.2 0.81 5 796 1913 -19.5 -22.5 77 3.0 -20.0 317 8 270.8 270.9 266.7 273.0 0.79 6 762 2242 -13.7 -17.6 72 3.9 -14.6 352 10 280.4 280.6 273.5 284.1 1.26 7 719 2684 -14.3 -22.3 51 8.0 -15.9 39 12 284.5 284.6 275.2 287.2 0.89 8 703 2854 -14.1 -22.1 51 8.0 -15.8 57 13 286.5 286.7 276.3 289.3 0.92 9 700 2887 -14.1 -22.1 51 8.0 -15.8 60 13 286.9 287.0 276.5 289.7 0.93 10 645 3502 -18.3 -25.3 54 7.0 -19.6 60 16 288.9 289.0 277.3 291.3 0.76 11 639 3572 -17.1 -24.1 55 7.0 -18.5 60 17 291.0 291.2 278.5 293.7 0.85 12 518 5116 -26.3 -37.3 35 11.0 -27.5 60 26 297.9 298.0 280.9 299.0 0.30 13 500 5370 -28.3 -39.3 34 11.0 -29.4 60 27 298.5 298.6 281.1 299.4 0.25 14 400 6940 -39.5 -49.5 34 10.0 -40.0 55 38 303.7 303.7 283.0 304.0 0.10 15 300 8840 -54.7 -63.7 32 9.0 -54.8 50 38 308.2 308.2 284.7 308.3 0.02 16 274 9415 -58.7 -66.7 35 8.0 -58.8 50 40 310.5 310.6 285.5 310.6 0.02 17 250 9990 -58.9 -66.9 35 8.0 -59.0 55 35 318.5 318.5 288.3 318.6 0.02 18 200 11410 -54.1 -64.1 28 10.0 -54.3 45 17 347.1 347.1 296.0 347.2 0.03 19 179 12119 -53.1 -64.1 25 11.0 -53.4 47 15 359.9 359.9 298.7 360.1 0.04 20 150 13250 -53.5 -65.5 22 12.0 -53.8 50 13 377.9 377.9 301.9 378.1 0.04 21 100 15860 -52.3 -69.3 11 17.0 -52.9 95 5 426.7 426.7 308.5 426.9 0.03 22 70 18180 -50.7 -72.7 6 22.0 -51.8 145 3 475.9 475.9 313.1 476.1 0.03 23 50 20370 -49.9 -73.9 4 24.0 -51.5 165 7 525.9 525.9 316.7 526.1 0.03 24 44 21205 -49.5 -74.5 4 25.0 -51.4 168 8 546.4 546.5 317.9 546.7 0.04 25 44 21205 -49.7 -74.7 4 25.0 -51.6 168 8 546.0 546.0 317.9 546.2 0.03 26 30 23720 -47.3 -73.3 4 26.0 -50.5 175 9 615.7 615.7 321.3 616.2 0.06 27 28 24177 -46.9 -72.9 4 26.0 -50.3 181 8 629.1 629.1 321.9 629.6 0.07 28 23 25472 -49.7 -74.7 4 25.0 -52.8 198 6 657.2 657.3 323.0 657.8 0.07 29 20 26390 -48.1 -74.1 3 26.0 -52.1 210 5 688.9 689.0 324.1 689.7 0.08 30 17 27462 -47.9 -73.9 3 26.0 -52.4 722.4 722.4 325.1 723.3 0.10 31 16 27862 -48.1 -74.1 3 26.0 -52.7 734.3 734.4 325.5 735.3 0.10 TRP 274 9415 -58.7 -66.7 35 8.0 -58.8 50 40 310.5 310.6 285.5 310.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 5200.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.15 inches Sfc-500 mean rel hum: 54.52 % Est. max temperature: -3.58 C = 25.56 F Sfc-Lift cond lev (LCL): 844.70 mb = 1469.07 m = 4819.71 ft T: -16.92 C 700-500 lapse rate: 5.72 C/km ThetaE index: 2.20 C Layer 925.0- 840.0 mb Conv cond level (CCL): 534.54 mb = 4884.44 m = 16024.86 ft Mean mixing ratio: 0.95 g/kg Conv temperature: 17.68 C = 63.83 F Cap Strength: 21.90 C Lifted Index: 22.13 C Risk: None Lifted Index @300 mb: 25.85 C Lifted Index @700 mb: 14.94 C Showalter Index: 22.60 C Risk: None Total Totals Index: 18.80 C Risk: None Vertical Totals Index: 11.80 C Cross Totals Index: 7.00 C K Index: -17.50 Risk: None Sweat Index: 37.00 Risk: None Energy Index: 6.04 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 0.74 J/kg Max Up Vert Vel: 1.22 m/s Conv Inhibition (B-): 59251.02 J/kg Cap Strength: 22.05 C Lift Cond Lev (LCL): 803.98 mb = 1838.64 m = 6032.21 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 87 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 ---------------------------------------------------------- 0 930 733 300 5 4.3 -2.5 | 275 18 18.2 -1.7 1 925 775 305 5 4.1 -2.9 | 277 18 17.9 -2.1 2 850 1422 265 5 5.0 0.4 | 266 19 18.8 1.2 3 700 2887 60 13 -11.3 -6.5 | 336 6 2.6 -5.7 4 500 5370 60 27 -23.4 -13.5 | 37 16 -9.6 -12.7 5 400 6940 55 38 -31.1 -21.8 | 39 27 -17.3 -21.0 6 300 8840 50 38 -29.1 -24.4 | 33 28 -15.3 -23.6 7 274 9415 50 40 -30.6 -25.7 | 34 30 -16.8 -24.9 8 250 9990 55 35 -28.7 -20.1 | 38 24 -14.8 -19.3 9 200 11410 45 17 -12.0 -12.0 | 351 11 1.8 -11.2 10 150 13250 50 13 -10.0 -8.4 | 333 8 3.9 -7.6 11 100 15860 95 5 -5.0 0.4 | 262 9 8.9 1.2 12 70 18180 145 3 -1.7 2.5 | 255 13 12.1 3.3 13 50 20370 165 7 -1.8 6.8 | 238 14 12.0 7.6 14 30 23720 175 9 -0.8 9.0 | 233 16 13.0 9.8 15 20 26390 210 5 2.5 4.3 | 253 17 16.3 5.1 Wind Parameters Mean winds (0-6000m): 56.7 at 18.5 knts Storm direction: 86.7 at 13.9 knts Shear (0-3000m) pos: 3.3 neg: 0.3 tot: 3.6 10-3/s Storm rel Dir Shear (0-3000m): 95.6 deg Storm rel helicity (0-3000m) pos: 91.3 neg: -14.7 tot: 76.6 m^2/s^2 ave: 25.5 10^-3 m/s^2 rel: 0.61 Storm rel vorticity (0-3000m) horiz: 5.7 stream: 3.5 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.01 Bulk Shear: 62.42 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 ------------------------------------------------------------------------------- 500 292 5 273 19| 0.0 2.1 2.1| 0.5 -10.1 -9.6 -19.2 -0.86| 2.3 -2.0 1000 285 5 272 19| 1.4 1.0 2.4| 18.5 -14.7 3.8 3.8 0.09| 3.5 0.3 1500 308 6 279 19| 3.2 0.7 3.9| 56.1 -14.7 41.4 27.6 0.54| 5.1 2.8 2000 352 7 294 16| 4.0 0.5 4.6| 80.5 -14.7 65.8 32.9 0.58| 6.5 3.7 2500 35 9 305 11| 3.9 0.4 4.4| 86.6 -14.7 72.0 28.8 0.58| 6.3 3.7 3000 46 10 311 9| 3.3 0.3 3.6| 91.3 -14.7 76.6 25.5 0.61| 5.7 3.5 4000 54 13 331 8| 2.5 0.9 3.4|100.6 -14.7 85.9 21.5 0.61| 5.0 3.0 5000 57 15 352 8| 2.0 1.3 3.3|108.3 -14.7 93.7 18.7 0.57| 4.7 2.6 6000 57 18 10 9| 1.6 1.7 3.4|110.7 -14.7 96.0 16.0 0.50| 4.5 2.2 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251014.00.gif