UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2026010912.upa.cvt Date: 1200Z 9 JAN 26 Searching for U4688... Searching the city database file for: U4688 ... Date:1200Z 9 JAN 26 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 210 SFC 926 738 -41.5 -44.5 73 3.0 -41.6 60 1 236.8 236.8 236.6 237.0 0.08 2 925 745 -41.5 -44.6 72 3.1 -41.6 60 1 236.9 236.9 236.7 237.1 0.08 3 910 856 -41.1 -44.9 67 3.8 -41.2 75 4 238.4 238.4 238.1 238.6 0.08 4 850 1331 -31.7 -35.4 70 3.7 -31.9 140 15 252.9 253.0 251.7 253.6 0.22 5 832 1483 -29.1 -32.9 70 3.8 -29.4 146 15 257.2 257.3 255.5 258.1 0.29 6 770 2044 -20.9 -24.4 73 3.5 -21.4 165 16 271.8 271.9 267.3 273.8 0.69 7 700 2739 -25.7 -29.2 72 3.5 -26.1 190 17 274.0 274.1 268.3 275.5 0.49 8 500 5110 -39.9 -43.4 69 3.5 -40.1 190 44 284.4 284.4 274.0 284.9 0.16 9 498 5137 -40.1 -43.6 69 3.5 -40.3 190 44 284.5 284.5 274.0 285.0 0.16 10 400 6590 -51.7 -55.0 68 3.3 -51.8 200 50 287.8 287.8 275.6 288.0 0.05 11 369 7108 -56.3 -59.7 65 3.4 -56.3 202 60 288.4 288.4 275.9 288.5 0.03 12 328 7849 -61.1 -64.6 63 3.5 -61.2 205 75 291.7 291.7 277.5 291.7 0.02 13 314 8119 -62.9 -66.4 62 3.5 -62.9 205 69 292.8 292.8 278.1 292.9 0.02 14 300 8400 -62.9 -66.5 62 3.6 -62.9 205 64 296.7 296.7 279.9 296.7 0.02 15 286 8698 -63.9 -67.5 61 3.6 -63.9 201 56 299.3 299.3 281.1 299.4 0.02 16 250 9540 -59.9 -63.6 62 3.7 -59.9 190 33 317.0 317.0 287.8 317.1 0.03 17 200 10940 -53.7 -57.6 62 3.9 -53.8 200 29 347.7 347.7 296.2 348.1 0.08 18 150 12790 -52.5 -56.4 63 3.9 -52.7 190 33 379.6 379.6 302.3 380.2 0.12 19 121 14173 -51.9 -55.7 64 3.8 -52.1 198 37 404.8 404.8 305.9 405.6 0.17 20 119 14281 -49.1 -53.2 62 4.1 -49.4 199 37 411.8 411.9 306.9 413.0 0.23 21 102 15290 -48.3 -52.4 62 4.1 -48.7 204 40 431.9 432.0 309.2 433.5 0.29 22 100 15420 -48.7 -52.8 62 4.1 -49.1 205 40 433.6 433.7 309.4 435.1 0.29 23 91 16040 -51.9 -55.8 63 3.9 -52.2 205 44 439.1 439.2 309.9 440.3 0.22 24 75 17313 -47.5 -51.6 63 4.1 -48.1 205 51 473.3 473.5 313.1 475.8 0.44 25 70 17770 -48.5 -52.7 62 4.2 -49.1 205 54 480.6 480.7 313.7 483.0 0.41 26 52 19731 -49.1 -53.2 62 4.1 -49.8 209 59 521.9 522.0 316.6 525.2 0.52 27 50 19990 -47.1 -51.2 63 4.1 -47.9 210 60 532.5 532.7 317.3 536.9 0.69 28 49 20124 -45.9 -49.9 64 4.0 -46.8 210 60 538.4 538.7 317.8 543.7 0.82 29 40 21465 -48.9 -53.0 62 4.1 -49.7 214 60 563.0 563.3 319.0 567.8 0.70 30 30 23370 -44.9 -49.1 63 4.2 -46.3 220 60 622.2 622.8 322.0 633.1 1.46 31 29 23597 -44.9 -49.1 63 4.2 -46.3 220 61 628.3 628.9 322.3 639.7 1.51 32 20 26070 -47.9 -52.1 62 4.2 -49.4 215 66 689.6 690.2 324.5 702.5 1.55 33 19 26408 -48.3 -52.5 62 4.2 -49.8 698.5 699.2 324.8 711.7 1.56 34 18 26768 -43.1 -47.5 62 4.4 -45.2 725.8 727.1 326.0 751.3 2.92 35 13 28964 -42.5 -46.8 63 4.3 -45.0 798.7 800.8 328.2 840.9 4.39 36 13 28964 -40.1 -44.4 63 4.3 -42.8 807.0 809.8 328.7 862.6 5.72 TRP 314 8119 -62.9 -66.4 62 3.5 -62.9 205 69 292.8 292.8 278.1 292.9 0.02 WND 328 7849 -61.1 -64.6 63 3.5 -61.2 205 75 291.7 291.7 277.5 291.7 0.02 Sounding variables and indices 1000-500 mb thick: 4900.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 70.83 % Est. max temperature: -8.69 C = 16.36 F Sfc-Lift cond lev (LCL): 878.38 mb = 1102.45 m = 3616.93 ft T: -36.23 C 700-500 lapse rate: 5.99 C/km ThetaE index: 0.00 C Layer 926.0--45828628193214464.0 mb Conv cond level (CCL): 926.00 mb = 737.59 m = 2419.88 ft Mean mixing ratio: 0.17 g/kg Conv temperature: -37.30 C = -35.13 F Cap Strength: 24.14 C Lifted Index: 30.33 C Risk: None Lifted Index @300 mb: 34.87 C Lifted Index @700 mb: 24.14 C Showalter Index: 25.30 C Risk: None Total Totals Index: 12.70 C Risk: None Vertical Totals Index: 8.20 C Cross Totals Index: 4.50 C K Index: -30.70 Risk: None Sweat Index: 74.00 Risk: None Energy Index: 6.82 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 72.11 J/kg Max Up Vert Vel: 12.01 m/s Conv Inhibition (B-): 73168.39 J/kg Cap Strength: 30.00 C Lift Cond Lev (LCL): 839.38 mb = 1420.11 m = 4659.10 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 219 at 22 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 ---------------------------------------------------------- 0 926 738 60 1 -0.9 -0.5 | 40 23 -14.9 -17.9 1 925 745 60 1 -0.9 -0.5 | 40 23 -14.9 -17.9 2 850 1331 140 15 -9.6 11.5 | 76 24 -23.7 -5.9 3 700 2739 190 17 3.0 16.7 | 87 11 -11.1 -0.6 4 500 5110 190 44 7.6 43.3 | 166 27 -6.4 26.0 5 400 6590 200 50 17.1 47.0 | 186 30 3.1 29.6 6 328 7849 205 75 31.7 68.0 | 199 54 17.7 50.6 7 314 8119 205 69 29.2 62.5 | 199 48 15.1 45.2 8 300 8400 205 64 27.0 58.0 | 198 43 13.0 40.6 9 250 9540 190 33 5.7 32.5 | 151 17 -8.3 15.1 10 200 10940 200 29 9.9 27.3 | 157 11 -4.1 9.9 11 150 12790 190 33 5.7 32.5 | 151 17 -8.3 15.1 12 100 15420 205 40 16.9 36.3 | 189 19 2.9 18.9 13 70 17770 205 54 22.8 48.9 | 196 33 8.8 31.6 14 50 19990 210 60 30.0 52.0 | 205 38 16.0 34.6 15 30 23370 220 60 38.6 46.0 | 221 38 24.5 28.6 16 20 26070 215 66 37.9 54.1 | 213 44 23.8 36.7 Wind Parameters Mean winds (0-6000m): 188.9 at 29.8 knts Storm direction: 218.9 at 22.3 knts Shear (0-3000m) pos: 4.0 neg: 1.0 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 99.4 deg Storm rel helicity (0-3000m) pos: 167.0 neg: -0.2 tot: 166.8 m^2/s^2 ave: 55.6 10^-3 m/s^2 rel: 0.70 Storm rel vorticity (0-3000m) horiz: 7.5 stream: 5.3 10^-3/s Energy-Hel index: 0.06 Bulk Rich Number: 0.71 Bulk Shear: 101.48 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 ------------------------------------------------------------------------------- 500 123 7 55 24| 12.8 0.0 12.8| 90.9 0.0 90.9 181.7 0.90| 15.0 13.4 1000 142 11 67 22| 8.1 0.0 8.1|125.2 0.0 125.2 125.2 0.83| 11.5 9.5 1500 151 12 72 21| 5.7 0.0 5.7|133.0 0.0 133.0 88.7 0.73| 9.3 6.9 2000 161 14 76 19| 4.5 0.0 4.5|134.5 -0.2 134.3 67.2 0.62| 8.3 5.2 2500 169 15 80 17| 4.8 0.0 4.8|150.7 -0.2 150.5 60.2 0.68| 7.8 5.3 3000 174 16 86 16| 4.0 1.0 5.0|167.0 -0.2 166.8 55.6 0.70| 7.5 5.3 4000 181 21 105 14| 3.0 2.2 5.2|199.5 -0.2 199.3 49.8 0.68| 7.1 4.9 5000 185 26 125 14| 3.1 1.8 4.9|240.9 -0.2 240.7 48.1 0.69| 6.5 4.5 6000 189 30 142 15| 3.2 1.5 4.6|293.7 -0.2 293.5 48.9 0.70| 6.2 4.3 Wrote GIF file: /home/apache/climate/data/raob//U4688/skewt/U4688.skewt.20260109.12.gif