UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120312.upa.cvt Date: 1200Z 3 DEC 25 Searching for X2477... Searching the city database file for: X2477 ... Date:1200Z 3 DEC 25 Station: X2477 WMO ident: 32477 Latitude: 54.30 Longitude: 155.93 ------------------------------------------------------------------------------- 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 14 150 9 SFC 999 22 1.4 -0.6 87 2.0 0.6 150 9 274.6 275.2 273.8 284.6 3.66 2 958 358 -1.7 -4.5 81 2.8 -2.7 147 24 274.8 275.3 272.7 282.7 2.85 3 925 636 -2.9 -5.3 83 2.4 -3.8 145 36 276.3 276.8 273.5 284.1 2.78 4 850 1304 -5.5 -7.6 85 2.1 -6.2 160 64 280.4 280.8 275.4 287.6 2.54 5 775 2023 -8.9 -10.9 85 2.0 -9.5 174 64 284.2 284.6 276.9 290.5 2.14 6 729 2493 -13.5 -16.0 81 2.5 -14.1 184 64 284.2 284.5 276.0 288.7 1.50 7 700 2800 -15.7 -18.5 79 2.8 -16.3 190 64 285.1 285.3 276.1 288.9 1.27 8 632 3563 -18.5 -21.5 77 3.0 -19.1 187 62 290.4 290.6 278.5 293.7 1.08 9 500 5260 -31.5 -34.6 74 3.1 -31.8 180 56 294.6 294.7 279.6 296.0 0.41 10 472 5666 -35.1 -38.4 72 3.3 -35.4 176 62 295.1 295.1 279.6 296.1 0.29 11 442 6121 -38.7 -42.0 71 3.3 -38.9 172 69 296.1 296.2 279.9 296.9 0.22 12 400 6800 -43.7 -47.0 70 3.3 -43.9 165 79 298.2 298.2 280.7 298.7 0.14 13 396 6868 -44.1 -47.4 70 3.3 -44.2 165 80 298.5 298.6 280.9 299.0 0.13 14 366 7392 -48.6 -51.9 69 3.2 -48.7 165 91 299.3 299.3 281.1 299.6 0.09 15 347 7740 -51.7 -54.9 68 3.2 -51.8 173 85 299.7 299.7 281.3 300.0 0.06 16 300 8680 -54.1 -58.0 62 3.9 -54.2 195 69 309.1 309.1 285.1 309.3 0.05 17 281 9098 -55.1 -59.1 61 4.0 -55.2 199 72 313.5 313.5 286.6 313.7 0.05 18 275 9236 -55.9 -59.8 62 3.9 -56.0 200 73 314.3 314.3 286.9 314.4 0.04 19 250 9840 -56.9 -61.1 59 4.2 -57.0 210 71 321.5 321.5 289.2 321.6 0.04 20 241 10072 -57.3 -61.6 58 4.3 -57.4 212 71 324.3 324.3 290.1 324.4 0.04 21 203 11164 -53.9 -58.7 56 4.8 -54.1 219 71 345.9 346.0 295.8 346.2 0.07 22 200 11260 -54.1 -58.9 55 4.8 -54.2 220 71 347.1 347.1 296.1 347.4 0.07 23 162 12609 -55.3 -60.3 54 5.0 -55.5 216 66 366.6 366.7 300.0 367.0 0.07 24 150 13100 -55.9 -61.9 47 6.0 -56.1 215 64 373.8 373.8 301.2 374.0 0.06 25 100 15680 -56.1 -63.1 41 7.0 -56.4 225 69 419.3 419.4 307.7 419.7 0.08 26 73 17673 -55.7 -63.7 36 8.0 -56.1 225 71 459.7 459.7 311.8 460.2 0.10 27 70 17940 -53.7 -61.7 37 8.0 -54.2 225 71 469.5 469.5 312.7 470.3 0.14 28 60 18934 -53.3 -62.3 33 9.0 -54.0 223 57 491.6 491.6 314.4 492.4 0.15 29 57 19268 -49.5 -58.5 34 9.0 -50.5 222 52 507.4 507.5 315.6 509.0 0.25 30 50 20130 -48.7 -58.7 30 10.0 -50.0 220 40 528.7 528.8 316.9 530.5 0.28 31 49 20261 -48.7 -58.7 30 10.0 -50.1 220 41 531.8 531.9 317.1 533.6 0.28 32 33 22863 -44.1 -56.1 25 12.0 -47.0 216 53 607.6 607.8 321.2 612.0 0.58 33 30 23500 -42.5 -55.5 23 13.0 -46.1 215 56 628.8 629.0 322.0 634.1 0.69 34 27 24204 -47.1 -60.1 21 13.0 -49.9 210 50 635.1 635.3 322.2 638.5 0.43 35 23 25270 -45.1 -59.1 19 14.0 -48.8 202 40 670.8 671.0 323.6 675.5 0.58 36 20 26200 -46.9 -60.9 19 14.0 -50.5 195 31 692.6 692.8 324.3 697.1 0.53 37 16 27662 -51.9 -65.9 17 14.0 -54.8 721.9 722.1 325.2 725.0 0.34 38 12 29538 -49.3 -64.3 16 15.0 -53.6 793.1 793.3 327.2 798.6 0.56 TRP 275 9236 -55.9 -59.8 62 3.9 -56.0 200 73 314.3 314.3 286.9 314.4 0.04 WND 366 7392 -48.6 -51.9 69 3.2 -48.7 165 91 299.3 299.3 281.1 299.6 0.09 Sounding variables and indices 1000-500 mb thick: 5246.00 m Freezing level: 980.48 mb = 173.58 m = 569.48 ft Wetbulb zero: 991.86 mb = 79.47 m = 260.73 ft Precipitable water: 0.39 inches Sfc-500 mean rel hum: 80.12 % Est. max temperature: 7.20 C = 44.97 F Sfc-Lift cond lev (LCL): 968.32 mb = 271.76 m = 891.60 ft T: -0.91 C 700-500 lapse rate: 6.42 C/km ThetaE index: 1.93 C Layer 958.0- 925.0 mb Conv cond level (CCL): 847.66 mb = 1325.50 m = 4348.71 ft Mean mixing ratio: 2.97 g/kg Conv temperature: 7.27 C = 45.08 F Cap Strength: 7.67 C Lifted Index: 9.44 C Risk: None Lifted Index @300 mb: 17.95 C Lifted Index @700 mb: 4.14 C Showalter Index: 6.57 C Risk: None Total Totals Index: 49.90 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 26.00 C Cross Totals Index: 23.90 C K Index: 15.60 Risk: < 20 % chance of thunderstorms Sweat Index: 202.00 Risk: None Energy Index: 1.71 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 11.43 J/kg Max Up Vert Vel: 4.78 m/s Conv Inhibition (B-): 69957.95 J/kg Cap Strength: 9.38 C Lift Cond Lev (LCL): 912.69 mb = 741.84 m = 2433.82 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 207 at 42 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 ---------------------------------------------------------- 0 999 22 150 9 -4.5 7.8 | 38 38 -23.6 -30.0 1 925 636 145 36 -20.6 29.5 | 78 41 -39.8 -8.3 2 850 1304 160 64 -21.9 60.1 | 119 47 -41.0 22.3 3 700 2800 190 64 11.1 63.0 | 162 26 -8.0 25.2 4 500 5260 180 56 0.0 56.0 | 134 26 -19.1 18.2 5 400 6800 165 79 -20.4 76.3 | 134 55 -39.6 38.5 6 366 7392 165 91 -23.6 87.9 | 140 66 -42.7 50.1 7 300 8680 195 69 17.9 66.6 | 177 29 -1.3 28.8 8 275 9236 200 73 25.0 68.6 | 191 31 5.8 30.8 9 250 9840 210 71 35.5 61.5 | 215 29 16.4 23.7 10 200 11260 220 71 45.6 54.4 | 238 31 26.5 16.6 11 150 13100 215 64 36.7 52.4 | 230 23 17.6 14.6 12 100 15680 225 69 48.8 48.8 | 250 32 29.6 11.0 13 70 17940 225 71 50.2 50.2 | 248 33 31.1 12.4 14 50 20130 220 40 25.7 30.6 | 318 10 6.6 -7.2 15 30 23500 215 56 32.1 45.9 | 238 15 13.0 8.1 16 20 26200 195 31 8.0 29.9 | 55 14 -11.1 -7.9 Wind Parameters Mean winds (0-6000m): 176.9 at 56.5 knts Storm direction: 206.9 at 42.4 knts Shear (0-3000m) pos: 7.9 neg: 3.8 tot: 11.6 10-3/s Storm rel Dir Shear (0-3000m): 121.4 deg Storm rel helicity (0-3000m) pos: 853.8 neg: -7.7 tot: 846.1 m^2/s^2 ave: 282.0 10^-3 m/s^2 rel: 0.89 Storm rel vorticity (0-3000m) horiz: 15.8 stream: 14.0 10^-3/s Energy-Hel index: 0.05 Bulk Rich Number: 0.05 Bulk Shear: 218.88 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 ------------------------------------------------------------------------------- 500 146 20 55 37| 0.0 22.7 22.7|211.1 0.0 211.1 422.2 0.98| 22.7 22.2 1000 148 31 72 37| 11.3 11.3 22.6|449.2 0.0 449.2 449.2 0.97| 22.9 22.3 1500 154 41 88 37| 12.3 7.6 19.9|646.6 0.0 646.6 431.1 0.96| 21.5 20.6 2000 159 46 99 36| 10.2 5.7 15.9|736.7 0.0 736.7 368.3 0.93| 19.0 17.7 2500 165 50 108 34| 9.1 4.5 13.6|815.0 0.0 815.0 326.0 0.91| 17.5 16.0 3000 169 53 116 32| 7.9 3.8 11.6|853.8 -7.7 846.1 282.0 0.89| 15.8 14.0 4000 175 55 124 30| 5.9 3.0 8.9|853.8 -45.3 808.5 202.1 0.78| 12.6 9.8 5000 177 56 128 29| 4.7 2.6 7.3|853.8 -81.6 772.2 154.4 0.69| 10.6 7.3 6000 177 57 130 29| 3.9 3.3 7.2|863.6 -88.8 774.8 129.1 0.60| 10.1 6.1 Wrote GIF file: /home/apache/climate/data/raob//X2477/skewt/X2477.skewt.20251203.12.gif