UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025050100.upa.cvt Date: 0000Z 1 MAY 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 1 MAY 25 Station: U2820 WMO ident: 22820 Latitude: 61.82 Longitude: 34.27 ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- SFC 1004 108 -3.5 -8.5 68 5.0 -5.0 200 1 269.3 269.7 267.9 274.8 2.00 1 1002 124 -0.9 -7.9 59 7.0 -3.2 202 1 272.1 272.4 269.8 277.9 2.10 2 1000 140 -0.3 -7.3 59 7.0 -2.7 205 1 272.9 273.2 270.5 278.9 2.20 3 995 180 1.4 -5.6 60 7.0 -1.2 209 1 274.9 275.4 272.3 281.9 2.53 4 974 352 0.8 -7.2 55 8.0 -2.0 225 2 276.0 276.4 272.5 282.4 2.28 5 925 763 -3.1 -12.1 50 9.0 -5.8 265 3 276.1 276.4 271.6 280.8 1.63 6 850 1424 -8.7 -16.7 52 8.0 -10.6 290 3 277.0 277.2 271.5 280.6 1.22 7 769 2189 -15.7 -22.7 55 7.0 -17.0 321 8 277.5 277.7 271.1 279.9 0.80 8 752 2358 -15.9 -21.9 60 6.0 -17.0 328 9 279.1 279.2 272.1 281.7 0.88 9 742 2459 -14.1 -21.1 55 7.0 -15.6 332 10 282.1 282.3 274.0 285.0 0.96 10 700 2900 -15.7 -25.7 42 10.0 -17.5 350 13 285.1 285.2 275.2 287.2 0.67 11 655 3399 -17.3 -29.3 34 12.0 -19.3 346 15 288.8 288.9 276.9 290.4 0.52 12 646 3502 -18.1 -30.1 34 12.0 -20.0 345 15 289.0 289.1 276.9 290.5 0.49 13 500 5370 -29.9 -41.9 30 12.0 -30.9 330 21 296.6 296.6 280.1 297.2 0.19 14 448 6142 -34.9 -46.9 28 12.0 -35.6 337 22 299.8 299.8 281.4 300.2 0.13 15 400 6920 -41.3 -53.3 26 12.0 -41.8 345 23 301.3 301.3 282.0 301.6 0.07 16 328 8237 -52.5 -64.5 22 12.0 -52.7 348 24 303.5 303.5 282.8 303.6 0.02 17 300 8810 -56.1 -69.1 18 13.0 -56.2 350 25 306.3 306.3 283.9 306.3 0.01 18 290 9025 -56.9 -69.9 18 13.0 -57.1 350 25 308.1 308.1 284.6 308.2 0.01 19 250 9970 -53.3 -66.3 19 13.0 -53.5 330 25 326.8 326.8 290.8 326.9 0.02 20 211 11077 -48.3 -62.3 18 14.0 -48.8 315 23 350.9 350.9 296.8 351.1 0.04 21 200 11430 -48.7 -62.7 18 14.0 -49.1 310 23 355.7 355.7 297.8 355.8 0.04 22 150 13310 -49.7 -64.7 16 15.0 -50.3 310 23 384.4 384.4 303.0 384.6 0.04 23 100 15950 -51.3 -67.3 13 16.0 -52.0 320 27 428.6 428.6 308.7 428.8 0.04 24 77 17637 -53.5 -69.5 13 16.0 -54.2 309 21 457.3 457.3 311.5 457.5 0.04 25 70 18250 -53.1 -70.1 11 17.0 -53.9 305 19 470.8 470.8 312.7 471.0 0.04 26 50 20440 -51.3 -69.3 10 18.0 -52.7 255 5 522.6 522.6 316.5 523.0 0.07 27 30 23760 -49.5 -68.5 9 19.0 -52.0 220 13 609.7 609.7 321.1 610.7 0.13 28 25 24961 -48.3 -67.3 9 19.0 -51.4 195 11 645.8 645.8 322.6 647.2 0.18 29 20 26430 -49.3 -69.3 8 20.0 -52.7 165 9 685.3 685.3 324.0 686.7 0.17 30 11 30394 -44.3 -65.3 8 21.0 -51.2 831.2 831.5 328.1 836.8 0.53 TRP 290 9025 -56.9 -69.9 18 13.0 -57.1 350 25 308.1 308.1 284.6 308.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5230.00 m Freezing level: Surface below freezing Freezing level: 999.12 mb = 147.09 m = 482.59 ft Freezing level: 963.95 mb = 436.00 m = 1430.44 ft Wetbulb zero: Below ground Precipitable water: 0.21 inches Sfc-500 mean rel hum: 43.47 % Est. max temperature: 4.15 C = 39.47 F Sfc-Lift cond lev (LCL): 927.74 mb = 739.43 m = 2425.92 ft T: -2.88 C 700-500 lapse rate: 5.75 C/km ThetaE index: 2.49 C Layer 925.0- 752.0 mb Conv cond level (CCL): 820.73 mb = 1691.83 m = 5550.56 ft Mean mixing ratio: 1.99 g/kg Conv temperature: 4.40 C = 39.92 F Cap Strength: 8.54 C Lifted Index: 12.97 C Risk: None Lifted Index @300 mb: 17.71 C Lifted Index @700 mb: 5.99 C Showalter Index: 13.56 C Risk: None Total Totals Index: 34.40 C Risk: None Vertical Totals Index: 21.20 C Cross Totals Index: 13.20 C K Index: -5.50 Risk: None Sweat Index: 27.00 Risk: None Energy Index: 3.51 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.84 J/kg Max Up Vert Vel: 4.21 m/s Conv Inhibition (B-): 60680.27 J/kg Cap Strength: 12.67 C Lift Cond Lev (LCL): 839.53 mb = 1518.74 m = 4982.67 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 5 at 9 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 1004 108 200 1 0.3 0.9 | 186 10 1.1 10.2 1 1000 140 205 1 0.4 0.9 | 187 10 1.2 10.1 2 925 763 265 3 3.0 0.3 | 202 10 3.8 9.5 3 850 1424 290 3 2.8 -1.0 | 204 9 3.6 8.2 4 700 2900 350 13 2.3 -12.8 | 320 5 3.0 -3.6 5 500 5370 330 21 10.5 -18.2 | 308 14 11.3 -9.0 6 400 6920 345 23 6.0 -22.2 | 333 15 6.7 -13.0 7 300 8810 350 25 4.3 -24.6 | 342 16 5.1 -15.4 8 290 9025 350 25 4.3 -24.6 | 342 16 5.1 -15.4 9 250 9970 330 25 12.5 -21.7 | 313 18 13.3 -12.4 10 200 11430 310 23 17.6 -14.8 | 287 19 18.4 -5.6 11 150 13310 310 23 17.6 -14.8 | 287 19 18.4 -5.6 12 100 15950 320 27 17.4 -20.7 | 302 21 18.1 -11.5 13 70 18250 305 19 15.6 -10.9 | 276 16 16.3 -1.7 14 50 20440 255 5 4.8 1.3 | 208 12 5.6 10.5 15 30 23760 220 13 8.4 10.0 | 205 21 9.1 19.2 16 20 26430 165 9 -2.3 8.7 | 175 18 -1.5 17.9 Wind Parameters Mean winds (0-6000m): 334.9 at 12.3 knts Storm direction: 4.9 at 9.3 knts Shear (0-3000m) pos: 2.5 neg: 0.0 tot: 2.5 10-3/s Storm rel Dir Shear (0-3000m): 133.2 deg Storm rel helicity (0-3000m) pos: 29.8 neg: -0.0 tot: 29.8 m^2/s^2 ave: 9.9 10^-3 m/s^2 rel: 0.85 Storm rel vorticity (0-3000m) horiz: 3.1 stream: 2.7 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.41 Bulk Shear: 21.35 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 2 192 10| 2.1 0.0 2.1| 5.6 0.0 5.6 11.2 0.96| 2.2 2.1 1000 260 2 198 10| 1.5 0.0 1.5| 8.4 0.0 8.4 8.4 0.84| 1.9 1.6 1500 272 3 200 10| 1.5 0.0 1.5| 11.7 0.0 11.7 7.8 0.79| 1.9 1.5 2000 290 3 207 9| 2.1 0.0 2.1| 19.1 0.0 19.1 9.6 0.84| 2.5 2.1 2500 313 5 215 7| 2.4 0.0 2.4| 25.8 0.0 25.8 10.3 0.87| 3.0 2.6 3000 330 6 223 5| 2.5 0.0 2.5| 29.8 -0.0 29.8 9.9 0.85| 3.1 2.7 4000 337 8 248 4| 1.9 0.5 2.4| 29.8 -1.1 28.7 7.2 0.68| 2.9 1.9 5000 336 10 274 5| 1.5 0.8 2.3| 29.8 -4.5 25.3 5.1 0.53| 2.7 1.4 6000 335 12 288 6| 1.4 0.7 2.1| 40.2 -5.6 34.6 5.8 0.54| 2.6 1.4 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250501.00.gif