UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120800.upa.cvt Date: 0000Z 8 DEC 25 Searching for U4688... Searching the city database file for: U4688 ... Date:0000Z 8 DEC 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 198 SFC 925 737 -38.5 -41.1 76 2.6 -38.6 210 1 239.9 240.0 239.7 240.3 0.11 2 850 1335 -27.7 -31.3 71 3.6 -28.0 320 7 257.1 257.2 255.5 258.1 0.33 3 830 1506 -24.3 -28.4 69 4.1 -24.8 309 8 262.5 262.5 260.0 263.7 0.44 4 766 2085 -27.3 -30.9 71 3.6 -27.6 272 11 265.3 265.4 262.0 266.4 0.38 5 700 2731 -26.7 -30.1 73 3.4 -27.1 230 15 272.9 273.0 267.5 274.3 0.45 6 699 2741 -26.7 -30.1 73 3.4 -27.1 230 15 273.0 273.1 267.6 274.4 0.45 7 597 3862 -34.9 -38.3 71 3.4 -35.1 225 24 276.1 276.2 269.2 276.9 0.23 8 549 4446 -35.9 -39.3 71 3.4 -36.1 223 29 281.6 281.7 272.5 282.4 0.23 9 500 5090 -39.9 -44.2 63 4.3 -40.1 220 35 284.4 284.4 273.9 284.9 0.15 10 486 5283 -41.3 -45.9 61 4.6 -41.5 220 35 285.0 285.0 274.2 285.4 0.13 11 400 6590 -46.9 -52.9 50 6.0 -47.1 220 33 294.0 294.0 278.7 294.3 0.07 12 393 6707 -47.1 -53.1 50 6.0 -47.3 220 33 295.3 295.3 279.3 295.5 0.07 13 309 8264 -57.7 -64.7 40 7.0 -57.8 216 31 301.5 301.5 282.0 301.5 0.02 14 300 8450 -58.5 -65.5 40 7.0 -58.6 215 31 302.9 302.9 282.5 303.0 0.02 15 299 8471 -58.5 -65.5 40 7.0 -58.6 215 31 303.2 303.2 282.7 303.2 0.02 16 262 9303 -58.3 -65.3 40 7.0 -58.4 204 32 315.1 315.1 287.2 315.2 0.02 17 250 9600 -55.9 -63.9 36 8.0 -56.1 200 33 323.0 323.0 289.7 323.1 0.03 18 227 10220 -52.1 -60.1 38 8.0 -52.3 200 31 337.8 337.8 293.8 338.0 0.05 19 200 11040 -52.7 -61.7 33 9.0 -52.9 200 29 349.3 349.3 296.5 349.5 0.05 20 172 12011 -52.3 -63.3 25 11.0 -52.6 197 33 365.4 365.4 299.8 365.6 0.04 21 155 12686 -49.5 -61.5 23 12.0 -50.0 196 35 381.2 381.2 302.5 381.5 0.06 22 150 12900 -50.1 -62.1 23 12.0 -50.6 195 36 383.7 383.8 302.9 384.0 0.06 23 102 15412 -52.3 -69.3 11 17.0 -52.9 195 31 424.3 424.3 308.2 424.4 0.03 24 100 15540 -52.3 -69.3 11 17.0 -52.9 195 31 426.7 426.7 308.5 426.9 0.03 25 80 16978 -53.9 -71.9 9 18.0 -54.6 201 34 451.5 451.5 311.0 451.7 0.03 26 70 17840 -51.7 -71.7 7 20.0 -52.7 205 36 473.8 473.8 313.0 474.0 0.03 27 68 18028 -51.5 -71.5 7 20.0 -52.5 205 37 478.2 478.2 313.3 478.4 0.04 28 50 20010 -55.3 -76.3 6 21.0 -56.2 210 48 513.2 513.2 315.9 513.3 0.02 29 44 20824 -55.3 -76.3 6 21.0 -56.3 210 54 532.3 532.3 317.1 532.4 0.03 30 30 23300 -48.9 -73.9 4 25.0 -51.7 210 73 611.3 611.4 321.2 611.8 0.06 31 28 23752 -48.3 -73.3 4 25.0 -51.4 212 79 625.2 625.2 321.7 625.7 0.07 32 20 25960 -48.1 -74.1 3 26.0 -52.1 220 106 688.9 689.0 324.1 689.7 0.08 33 17 27037 -45.7 -71.7 4 26.0 -50.9 729.4 729.5 325.4 730.7 0.14 34 16 27445 -41.5 -68.5 4 27.0 -48.6 755.9 756.0 326.1 758.1 0.24 35 14 28344 -45.1 -71.5 4 26.4 -51.2 220 122 773.1 773.2 326.6 774.8 0.18 36 13 28836 -47.1 -73.1 4 26.0 -52.7 782.7 782.8 326.8 784.2 0.15 TRP 299 8471 -58.5 -65.5 40 7.0 -58.6 215 31 303.2 303.2 282.7 303.2 0.02 WND 14 28344 -45.1 -71.5 4 26.4 -51.2 220 122 773.1 773.2 326.6 774.8 0.18 Sounding variables and indices 1000-500 mb thick: 4892.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.06 inches Sfc-500 mean rel hum: 71.06 % Est. max temperature: -14.08 C = 6.66 F Sfc-Lift cond lev (LCL): 884.14 mb = 1056.54 m = 3466.30 ft T: -32.73 C 700-500 lapse rate: 5.60 C/km ThetaE index: 0.00 C Layer 925.0--493268195371108428283495776780288.0 mb Conv cond level (CCL): 925.00 mb = 737.15 m = 2418.43 ft Mean mixing ratio: 0.27 g/kg Conv temperature: -32.58 C = -26.65 F Cap Strength: 24.72 C Lifted Index: 26.29 C Risk: None Lifted Index @300 mb: 35.82 C Lifted Index @700 mb: 18.81 C Showalter Index: 21.66 C Risk: None Total Totals Index: 20.80 C Risk: None Vertical Totals Index: 12.20 C Cross Totals Index: 8.60 C K Index: -22.50 Risk: None Sweat Index: 49.00 Risk: None Energy Index: 5.73 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 75.23 J/kg Max Up Vert Vel: 12.27 m/s Conv Inhibition (B-): 80599.26 J/kg Cap Strength: 26.20 C Lift Cond Lev (LCL): 843.07 mb = 1393.88 m = 4573.05 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 255 at 17 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 ---------------------------------------------------------- 0 925 737 210 1 0.5 0.9 | 78 16 -15.7 -3.4 1 850 1335 320 7 4.5 -5.4 | 50 15 -11.7 -9.6 2 700 2731 230 15 11.5 9.6 | 139 7 -4.7 5.4 3 500 5090 220 35 22.5 26.8 | 196 23 6.3 22.6 4 400 6590 220 33 21.2 25.3 | 194 22 5.0 21.0 5 300 8450 215 31 17.8 25.4 | 184 21 1.6 21.1 6 299 8471 215 31 17.8 25.4 | 184 21 1.6 21.1 7 250 9600 200 33 11.3 31.0 | 170 27 -4.9 26.7 8 200 11040 200 29 9.9 27.3 | 165 24 -6.2 23.0 9 150 12900 195 36 9.3 34.8 | 167 31 -6.8 30.5 10 100 15540 195 31 8.0 29.9 | 162 27 -8.1 25.7 11 70 17840 205 36 15.2 32.6 | 178 28 -1.0 28.4 12 50 20010 210 48 24.0 41.6 | 192 38 7.8 37.3 13 30 23300 210 73 36.5 63.2 | 199 62 20.3 59.0 14 20 25960 220 106 68.1 81.2 | 214 93 52.0 76.9 Wind Parameters Mean winds (0-6000m): 225.2 at 22.3 knts Storm direction: 255.2 at 16.7 knts Shear (0-3000m) pos: 1.1 neg: 3.9 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 105.5 deg Storm rel helicity (0-3000m) pos: 26.6 neg: -29.0 tot: -2.4 m^2/s^2 ave: -0.8 10^-3 m/s^2 rel: 0.17 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 1.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 1.14 Bulk Shear: 66.21 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 ------------------------------------------------------------------------------- 500 312 3 64 15| 6.3 0.0 6.3| 1.0 -17.7 -16.7 -33.3 -0.64| 7.9 -5.0 1000 308 6 57 14| 3.2 1.8 4.9| 1.0 -28.6 -27.6 -27.6 -0.55| 7.3 -4.1 1500 289 7 55 11| 2.1 2.9 5.0| 3.8 -29.0 -25.2 -16.8 -0.30| 7.2 -2.2 2000 263 9 67 8| 1.6 3.7 5.3| 11.2 -29.0 -17.8 -8.9 -0.00| 7.5 -0.0 2500 250 10 84 6| 1.3 3.8 5.1| 19.1 -29.0 -9.9 -3.9 0.11| 6.9 0.8 3000 242 12 105 6| 1.1 3.9 5.0| 26.6 -29.0 -2.4 -0.8 0.17| 6.5 1.1 4000 232 16 149 7| 0.8 4.1 4.8| 38.8 -29.0 9.8 2.5 0.20| 6.0 1.2 5000 227 20 170 9| 0.6 3.5 4.1| 41.5 -31.0 10.5 2.1 0.19| 5.2 1.0 6000 225 22 178 11| 0.5 2.8 3.3| 41.5 -35.5 6.1 1.0 0.17| 4.4 0.8 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20251208.00.gif