UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025100812.upa.cvt Date: 1200Z 8 OCT 25 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 8 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 179 SFC 929 742 -14.7 -18.8 71 4.1 -15.4 280 5 264.0 264.1 262.2 266.5 0.93 2 925 775 -14.1 -18.4 70 4.3 -14.9 285 7 264.9 265.0 262.9 267.6 0.97 3 909 908 -12.9 -17.6 68 4.7 -13.9 300 7 267.4 267.6 264.9 270.4 1.05 4 850 1416 -17.3 -22.3 65 5.0 -18.1 360 7 268.0 268.1 264.7 270.2 0.75 5 700 2849 -22.7 -27.2 67 4.5 -23.3 45 15 277.3 277.4 270.6 279.1 0.59 6 618 3756 -26.3 -32.3 57 6.0 -27.0 64 16 283.3 283.3 273.8 284.6 0.41 7 530 4852 -32.5 -38.5 55 6.0 -33.0 86 17 288.6 288.6 276.3 289.4 0.26 8 500 5260 -35.5 -40.5 60 5.0 -35.8 95 17 289.8 289.8 276.9 290.5 0.22 9 454 5924 -41.5 -46.4 59 4.9 -41.7 91 19 290.3 290.4 277.0 290.8 0.13 10 433 6245 -41.3 -45.8 62 4.5 -41.5 89 20 294.6 294.6 279.1 295.1 0.15 11 400 6780 -44.5 -49.2 59 4.7 -44.7 85 21 297.2 297.2 280.3 297.5 0.11 12 302 8618 -55.1 -61.1 47 6.0 -55.2 90 19 307.1 307.1 284.2 307.2 0.03 13 300 8660 -55.3 -61.3 47 6.0 -55.4 90 19 307.4 307.4 284.4 307.5 0.03 14 266 9426 -57.7 -63.7 46 6.0 -57.8 90 23 314.7 314.7 287.0 314.8 0.03 15 250 9820 -56.9 -63.9 41 7.0 -57.0 80 17 321.5 321.5 289.2 321.6 0.03 16 200 11250 -50.7 -58.7 38 8.0 -51.0 100 7 352.5 352.5 297.3 352.8 0.07 17 191 11550 -50.1 -58.1 38 8.0 -50.4 98 7 358.1 358.1 298.4 358.5 0.08 18 150 13130 -49.9 -61.9 23 12.0 -50.4 85 7 384.1 384.1 302.9 384.4 0.06 19 100 15780 -49.5 -67.5 10 18.0 -50.4 150 5 432.1 432.1 309.1 432.3 0.04 20 70 18110 -50.7 -71.7 7 21.0 -51.8 225 7 475.9 475.9 313.1 476.1 0.03 21 52 20062 -49.3 -72.3 5 23.0 -51.0 252 9 521.4 521.4 316.4 521.7 0.04 22 50 20320 -48.9 -71.9 5 23.0 -50.7 255 9 528.2 528.2 316.8 528.5 0.05 23 33 23069 -43.7 -69.7 4 26.0 -47.6 239 14 608.7 608.7 321.0 609.4 0.10 24 30 23700 -49.1 -74.1 4 25.0 -51.8 235 15 610.8 610.8 321.1 611.2 0.06 25 28 24157 -45.5 -71.5 4 26.0 -49.3 237 15 633.0 633.0 322.0 633.7 0.09 26 24 25178 -48.5 -73.5 4 25.0 -51.8 241 16 652.8 652.8 322.8 653.4 0.08 27 21 26065 -44.7 -70.7 4 26.0 -49.6 244 17 689.7 689.7 324.1 690.8 0.13 28 20 26390 -46.9 -72.9 4 26.0 -51.2 245 17 692.6 692.7 324.2 693.5 0.10 29 17 27468 -48.9 -73.9 4 25.0 -53.0 719.2 719.2 325.1 720.1 0.10 30 10 31000 -44.5 -70.5 4 26.0 -52.1 853.4 853.6 328.5 856.5 0.28 31 9.9 31067 -44.5 -70.5 4 26.0 -52.1 855.9 856.0 328.6 859.0 0.29 TRP 266 9426 -57.7 -63.7 46 6.0 -57.8 90 23 314.7 314.7 287.0 314.8 0.03 WND Sounding variables and indices 1000-500 mb thick: 5081.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.12 inches Sfc-500 mean rel hum: 62.00 % Est. max temperature: -6.64 C = 20.06 F Sfc-Lift cond lev (LCL): 869.02 mb = 1248.47 m = 4095.97 ft T: -15.85 C 700-500 lapse rate: 5.31 C/km ThetaE index: 0.23 C Layer 850.0- 700.0 mb Conv cond level (CCL): 702.34 mb = 2824.33 m = 9266.06 ft Mean mixing ratio: 0.89 g/kg Conv temperature: -1.75 C = 28.85 F Cap Strength: 15.67 C Lifted Index: 16.34 C Risk: None Lifted Index @300 mb: 26.48 C Lifted Index @700 mb: 7.75 C Showalter Index: 16.22 C Risk: None Total Totals Index: 31.40 C Risk: None Vertical Totals Index: 18.20 C Cross Totals Index: 13.20 C K Index: -8.60 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 4.28 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 10.68 J/kg Max Up Vert Vel: 4.62 m/s Conv Inhibition (B-): 75893.44 J/kg Cap Strength: 16.26 C Lift Cond Lev (LCL): 813.27 mb = 1742.03 m = 5715.27 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 99 at 11 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 ---------------------------------------------------------- 0 929 742 280 5 4.9 -0.9 | 279 16 15.8 -2.6 1 925 775 285 7 6.8 -1.8 | 281 18 17.6 -3.5 2 850 1416 360 7 -0.0 -7.0 | 309 14 10.9 -8.7 3 700 2849 45 15 -10.6 -10.6 | 359 12 0.2 -12.3 4 500 5260 95 17 -16.9 1.5 | 88 6 -6.1 -0.2 5 400 6780 85 21 -20.9 -1.8 | 71 11 -10.1 -3.5 6 300 8660 90 19 -19.0 0.0 | 78 8 -8.1 -1.7 7 266 9426 90 23 -23.0 0.0 | 82 12 -12.1 -1.7 8 250 9820 80 17 -16.7 -3.0 | 52 8 -5.9 -4.6 9 200 11250 100 7 -6.9 1.2 | 277 4 4.0 -0.5 10 150 13130 85 7 -7.0 -0.6 | 301 5 3.9 -2.3 11 100 15780 150 5 -2.5 4.3 | 252 9 8.4 2.6 12 70 18110 225 7 4.9 4.9 | 258 16 15.8 3.3 13 50 20320 255 9 8.7 2.3 | 268 20 19.5 0.6 14 30 23700 235 15 12.3 8.6 | 253 24 23.1 6.9 15 20 26390 245 17 15.4 7.2 | 258 27 26.3 5.5 Wind Parameters Mean winds (0-6000m): 68.9 at 14.6 knts Storm direction: 98.9 at 11.0 knts Shear (0-3000m) pos: 3.4 neg: 0.0 tot: 3.4 10-3/s Storm rel Dir Shear (0-3000m): 101.2 deg Storm rel helicity (0-3000m) pos: 89.8 neg: 0.0 tot: 89.8 m^2/s^2 ave: 29.9 10^-3 m/s^2 rel: 0.88 Storm rel vorticity (0-3000m) horiz: 4.7 stream: 4.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.22 Bulk Shear: 47.50 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 ------------------------------------------------------------------------------- 500 311 7 291 17| 6.4 0.0 6.4| 30.0 0.0 30.0 60.1 0.83| 8.3 6.9 1000 338 7 302 16| 5.2 0.0 5.2| 45.5 0.0 45.5 45.5 0.84| 6.6 5.5 1500 358 8 312 15| 4.7 0.0 4.7| 59.7 0.0 59.7 39.8 0.88| 5.8 5.0 2000 15 9 322 14| 4.5 0.0 4.5| 75.0 0.0 75.0 37.5 0.90| 5.5 4.9 2500 26 11 331 13| 3.9 0.0 3.9| 83.7 0.0 83.7 33.5 0.89| 5.1 4.5 3000 34 11 338 12| 3.4 0.0 3.4| 89.8 0.0 89.8 29.9 0.88| 4.7 4.1 4000 49 13 352 10| 2.8 0.0 2.8|100.5 0.0 100.5 25.1 0.88| 4.3 3.8 5000 61 14 7 8| 2.3 0.2 2.4|105.5 -1.2 104.3 20.9 0.84| 3.9 3.3 6000 69 15 22 8| 1.9 0.4 2.3|105.5 -5.1 100.4 16.7 0.73| 3.5 2.6 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251008.12.gif