UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042612.upa.cvt Date: 1200Z 26 APR 25 Searching for U8661... Searching the city database file for: U8661 ... Date:1200Z 26 APR 25 Station: U8661 WMO ident: 28661 Latitude: 55.47 Longitude: 65.40 ------------------------------------------------------------------------------- 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 -17 SFC 990 70 20.0 13.0 64 7.0 15.6 200 1 294.0 295.7 289.2 321.3 9.54 2 977 183 20.8 9.8 49 11.0 14.2 208 3 295.9 297.3 288.3 318.6 7.80 3 968 263 20.2 9.2 49 11.0 13.6 213 4 296.1 297.5 288.1 318.1 7.56 4 963 308 19.6 8.6 49 11.0 13.1 216 4 295.9 297.2 287.8 317.1 7.29 5 925 652 16.4 7.4 55 9.0 11.2 240 9 296.1 297.3 287.6 316.5 6.99 6 853 1335 9.6 5.2 74 4.4 7.2 221 13 295.9 297.1 287.1 314.9 6.51 7 850 1364 9.6 5.2 74 4.4 7.2 220 13 296.2 297.4 287.2 315.3 6.53 8 826 1601 8.0 2.0 66 6.0 4.9 223 14 296.9 297.9 286.3 312.7 5.35 9 752 2367 1.4 -3.6 69 5.0 -0.9 233 18 297.9 298.6 285.1 309.5 3.90 10 738 2518 0.2 -3.9 74 4.1 -1.6 235 19 298.2 298.9 285.2 309.8 3.88 11 700 2940 -2.7 -7.1 72 4.4 -4.5 240 21 299.5 300.1 285.0 309.2 3.20 12 686 3100 -3.9 -7.7 75 3.8 -5.4 241 21 299.9 300.5 285.1 309.4 3.12 13 684 3123 -4.1 -7.9 75 3.8 -5.6 241 21 299.9 300.5 285.1 309.3 3.08 14 682 3146 -4.1 -7.9 75 3.8 -5.6 241 21 300.2 300.7 285.2 309.6 3.09 15 558 4699 -14.3 -20.3 60 6.0 -15.9 247 17 305.9 306.1 285.4 310.3 1.36 16 522 5200 -18.7 -28.7 41 10.0 -20.6 249 16 306.4 306.6 284.8 308.7 0.68 17 500 5520 -21.1 -27.1 58 6.0 -22.2 250 15 307.3 307.5 285.4 310.1 0.83 18 498 5550 -21.5 -27.5 58 6.0 -22.6 250 15 307.2 307.3 285.2 309.9 0.80 19 473 5927 -24.7 -29.7 63 5.0 -25.5 252 15 307.8 307.9 285.4 310.1 0.69 20 443 6401 -26.5 -30.9 66 4.4 -27.2 255 15 311.3 311.4 286.6 313.6 0.66 21 423 6733 -29.1 -32.9 70 3.8 -29.6 257 15 312.1 312.2 286.8 314.1 0.57 22 416 6852 -29.9 -33.6 70 3.7 -30.4 258 15 312.6 312.7 286.9 314.5 0.54 23 404 7060 -31.7 -35.0 73 3.3 -32.1 260 15 312.9 313.0 286.9 314.6 0.48 24 400 7130 -32.3 -35.7 72 3.4 -32.7 260 15 313.0 313.1 286.9 314.6 0.46 25 358 7902 -38.7 -42.2 69 3.5 -38.9 273 15 314.5 314.6 287.2 315.5 0.26 26 326 8537 -44.3 -47.8 68 3.5 -44.5 285 15 315.3 315.4 287.4 315.9 0.16 27 300 9090 -47.3 -50.6 69 3.3 -47.4 295 15 318.7 318.7 288.5 319.2 0.12 28 257 10102 -53.7 -57.3 65 3.6 -53.8 265 33 323.7 323.7 289.9 323.9 0.06 29 256 10127 -53.7 -57.3 65 3.6 -53.8 264 33 324.0 324.0 290.0 324.3 0.06 30 250 10280 -52.9 -56.5 65 3.6 -53.0 260 35 327.4 327.4 291.0 327.7 0.07 31 237 10625 -50.3 -54.0 65 3.7 -50.4 259 37 336.4 336.4 293.5 336.8 0.10 32 218 11165 -53.9 -57.8 62 3.9 -54.0 257 41 339.0 339.0 294.1 339.3 0.07 33 200 11720 -51.5 -55.3 64 3.8 -51.7 255 44 351.2 351.2 297.0 351.7 0.11 34 197 11818 -51.7 -55.5 64 3.8 -51.8 255 44 352.4 352.4 297.3 352.9 0.10 35 179 12440 -49.9 -54.1 61 4.2 -50.1 257 42 365.2 365.2 299.8 365.8 0.14 36 160 13165 -53.9 -58.3 58 4.4 -54.1 259 39 370.3 370.3 300.7 370.7 0.09 37 150 13580 -51.7 -56.3 58 4.6 -51.9 260 38 381.0 381.0 302.5 381.6 0.12 38 128 14610 -50.3 -56.3 49 6.0 -50.7 266 37 401.2 401.2 305.5 401.9 0.15 39 115 15304 -52.7 -59.7 42 7.0 -53.1 270 36 409.2 409.2 306.5 409.8 0.11 40 100 16200 -55.1 -63.1 36 8.0 -55.4 275 35 421.3 421.3 307.9 421.7 0.08 41 94 16595 -55.1 -64.1 32 9.0 -55.5 272 34 428.8 428.8 308.7 429.2 0.07 42 70 18470 -56.7 -68.7 21 12.0 -57.2 260 27 463.1 463.1 312.1 463.4 0.05 43 54 20113 -57.9 -71.9 15 14.0 -58.5 272 18 496.0 496.0 314.7 496.3 0.04 44 51 20474 -57.7 -71.7 15 14.0 -58.3 274 16 504.6 504.7 315.3 504.9 0.05 45 50 20600 -55.3 -70.3 14 15.0 -56.2 275 15 513.2 513.2 315.9 513.5 0.06 46 43 21559 -58.7 -73.7 13 15.0 -59.4 268 11 527.4 527.4 316.8 527.7 0.04 47 31 23622 -58.5 -74.5 11 16.0 -59.5 252 4 579.7 579.7 319.7 580.1 0.05 48 30 23830 -55.5 -72.5 10 17.0 -56.9 250 3 593.3 593.4 320.3 593.9 0.07 49 28 24268 -57.7 -73.7 11 16.0 -58.8 248 3 599.0 599.1 320.6 599.5 0.06 50 25 24993 -51.9 -68.9 11 17.0 -54.1 246 4 635.4 635.5 322.2 636.6 0.14 51 24 25257 -52.9 -69.9 11 17.0 -55.0 244 4 640.0 640.0 322.3 641.0 0.13 52 21 26115 -55.1 -72.1 10 17.0 -57.0 241 5 658.3 658.3 323.0 659.1 0.11 53 21 26115 -53.1 -70.1 11 17.0 -55.4 241 5 664.3 664.4 323.3 665.5 0.14 54 20 26430 -51.9 -69.9 10 18.0 -54.6 240 5 677.3 677.4 323.7 678.6 0.16 55 18 27111 -53.3 -71.3 9 18.0 -55.9 693.6 693.7 324.3 694.8 0.14 56 16 27878 -48.3 -66.3 11 18.0 -52.4 733.7 733.8 325.6 736.6 0.32 57 14 28754 -49.7 -68.7 9 19.0 -53.8 757.5 757.6 326.2 760.0 0.26 58 12 29767 -48.1 -67.1 9 19.0 -53.2 797.3 797.5 327.3 801.1 0.38 59 12 29767 -43.5 -63.5 9 20.0 -50.3 813.6 813.9 327.7 820.0 0.62 TRP 257 10102 -53.7 -57.3 65 3.6 -53.8 265 33 323.7 323.7 289.9 323.9 0.06 WND Sounding variables and indices 1000-500 mb thick: 5537.00 m Freezing level: 735.38 mb = 2547.13 m = 8356.61 ft Wetbulb zero: 763.02 mb = 2248.24 m = 7376.02 ft Precipitable water: 0.87 inches Sfc-500 mean rel hum: 63.80 % Est. max temperature: 22.51 C = 72.52 F Sfc-Lift cond lev (LCL): 892.47 mb = 953.64 m = 3128.71 ft T: 13.40 C 700-500 lapse rate: 7.13 C/km ThetaE index: 6.45 C Layer 977.0- 850.0 mb Conv cond level (CCL): 802.01 mb = 1841.62 m = 6042.00 ft Mean mixing ratio: 7.30 g/kg Conv temperature: 23.26 C = 73.86 F Cap Strength: 1.10 C Lifted Index: -3.07 C Risk: Severe thunderstorms possible Lifted Index @300 mb: 1.52 C Lifted Index @700 mb: -1.90 C Showalter Index: -2.02 C Risk: Severe thunderstorms possible Total Totals Index: 57.00 C Risk: Severe Thunderstorms probable Vertical Totals Index: 30.70 C Cross Totals Index: 26.30 C K Index: 31.50 Risk: 60-80 % chance of thunderstorms Sweat Index: 263.40 Risk: None Energy Index: -1.09 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 471.40 J/kg Max Up Vert Vel: 30.70 m/s Conv Inhibition (B-): 18.99 J/kg Cap Strength: 1.10 C Lift Cond Lev (LCL): 818.09 mb = 1679.66 m = 5510.63 ft Lev Free Conv (LFC): 783.09 mb = 2036.39 m = 6680.98 ft Equ Level (EL): 313.09 mb = 8805.76 m = 28889.94 ft B at Equ Level: 467.70 J/kg Max Parcel Lev (MPL): 233.09 mb = 10732.92 m = 35212.58 ft Wind level data Storm motion: 270 at 12 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 ---------------------------------------------------------- 0 990 70 200 1 0.3 0.9 | 95 11 -11.3 1.0 1 925 652 240 9 7.8 4.5 | 140 6 -3.8 4.5 2 850 1364 220 13 8.4 10.0 | 162 10 -3.3 10.0 3 700 2940 240 21 18.2 10.5 | 212 12 6.6 10.5 4 500 5520 250 15 14.1 5.1 | 206 6 2.5 5.1 5 400 7130 260 15 14.8 2.6 | 230 4 3.1 2.6 6 300 9090 295 15 13.6 -6.3 | 343 7 2.0 -6.3 7 257 10102 265 33 32.9 2.9 | 262 21 21.2 2.9 8 250 10280 260 35 34.5 6.1 | 255 24 22.8 6.1 9 200 11720 255 44 42.5 11.4 | 250 33 30.9 11.4 10 150 13580 260 38 37.4 6.6 | 256 27 25.8 6.6 11 100 16200 275 35 34.9 -3.1 | 277 23 23.2 -3.0 12 70 18470 260 27 26.6 4.7 | 253 16 15.0 4.7 13 50 20600 275 15 14.9 -1.3 | 291 4 3.3 -1.3 14 30 23830 250 3 2.8 1.0 | 97 9 -8.8 1.0 15 20 26430 240 5 4.3 2.5 | 109 8 -7.3 2.5 Wind Parameters Mean winds (0-6000m): 240.1 at 15.5 knts Storm direction: 270.1 at 11.6 knts Shear (0-3000m) pos: 2.6 neg: 1.1 tot: 3.7 10-3/s Storm rel Dir Shear (0-3000m): 117.2 deg Storm rel helicity (0-3000m) pos: 50.9 neg: 0.0 tot: 50.9 m^2/s^2 ave: 17.0 10^-3 m/s^2 rel: 0.79 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 3.3 10^-3/s Energy-Hel index: 0.10 Bulk Rich Number: 28.88 Bulk Shear: 16.32 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 ------------------------------------------------------------------------------- 500 236 4 107 8| 7.3 0.0 7.3| 14.9 0.0 14.9 29.7 0.80| 7.7 6.1 1000 235 7 126 7| 3.6 1.9 5.5| 20.3 0.0 20.3 20.3 0.75| 6.1 4.6 1500 229 9 141 8| 2.4 2.2 4.7| 25.4 0.0 25.4 16.9 0.70| 5.3 3.7 2000 228 11 152 8| 2.6 1.7 4.2| 34.0 0.0 34.0 17.0 0.75| 4.8 3.6 2500 230 12 163 8| 2.7 1.3 4.0| 43.3 0.0 43.3 17.3 0.78| 4.5 3.5 3000 232 13 173 8| 2.6 1.1 3.7| 50.9 0.0 50.9 17.0 0.79| 4.2 3.3 4000 236 15 185 9| 1.7 0.8 2.5| 51.0 -0.2 50.9 12.7 0.71| 3.5 2.5 5000 238 16 191 8| 1.2 0.7 1.9| 51.0 -1.0 50.0 10.0 0.64| 3.1 2.0 6000 240 16 193 8| 1.0 0.6 1.5| 51.9 -1.5 50.4 8.4 0.61| 2.7 1.7 Wrote GIF file: /home/apache/climate/data/raob//U8661/skewt/U8661.skewt.20250426.12.gif