UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025042000.upa.cvt Date: 0000Z 20 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 20 APR 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 ------------------------------------------------------------------------------- 0 1000 103 45 3 SFC 999 111 2.6 1.1 90 1.5 2.0 45 3 275.8 276.5 275.2 287.1 4.14 2 957 457 0.6 -2.3 81 2.9 -0.6 59 11 277.2 277.8 274.8 286.5 3.37 3 938 619 1.6 -1.1 82 2.7 0.5 65 14 279.8 280.5 276.8 290.3 3.76 4 925 731 1.4 -1.1 83 2.5 0.3 70 17 280.7 281.4 277.3 291.4 3.81 5 903 925 0.2 -2.2 84 2.4 -0.8 59 15 281.4 282.1 277.4 291.5 3.60 6 892 1023 3.2 0.5 82 2.7 2.0 53 14 285.5 286.3 280.5 298.1 4.44 7 850 1415 3.6 -1.4 70 5.0 1.4 30 11 289.9 290.6 282.0 301.7 4.06 8 844 1473 3.8 -2.2 65 6.0 1.1 26 12 290.7 291.4 282.1 301.9 3.85 9 834 1569 3.2 -2.8 65 6.0 0.5 19 13 291.1 291.7 282.1 302.0 3.73 10 709 2875 -1.1 -3.0 87 1.9 -2.0 283 28 300.2 301.0 286.5 313.2 4.32 11 700 2977 -1.7 -3.5 87 1.8 -2.5 275 29 300.6 301.4 286.5 313.3 4.22 12 651 3551 -5.5 -7.3 87 1.8 -6.2 274 33 302.6 303.2 286.4 313.0 3.39 13 586 4367 -11.5 -13.6 84 2.1 -12.2 272 39 304.9 305.3 286.1 312.1 2.28 14 549 4865 -13.9 -16.4 81 2.5 -14.7 271 43 307.8 308.1 286.7 314.0 1.93 15 543 4949 -14.5 -17.1 81 2.6 -15.3 271 43 308.0 308.4 286.7 314.0 1.84 16 500 5570 -18.1 -21.7 73 3.6 -19.0 270 48 311.0 311.2 287.2 315.4 1.35 17 400 7190 -30.7 -36.7 56 6.0 -31.4 270 52 315.1 315.2 287.6 316.6 0.41 18 368 7778 -34.9 -40.9 54 6.0 -35.4 269 56 317.1 317.2 288.1 318.2 0.29 19 300 9170 -46.7 -53.7 45 7.0 -47.0 265 66 319.5 319.5 288.7 319.9 0.09 20 288 9439 -48.5 -55.5 44 7.0 -48.7 265 67 320.7 320.7 289.0 321.0 0.07 21 284 9530 -49.9 -57.9 38 8.0 -50.1 265 67 320.0 320.0 288.8 320.2 0.05 22 256 10200 -54.9 -62.9 36 8.0 -55.1 265 69 322.3 322.3 289.5 322.4 0.03 23 251 10325 -56.9 -64.9 36 8.0 -57.0 265 69 321.1 321.1 289.1 321.2 0.02 24 250 10350 -57.3 -65.3 36 8.0 -57.4 265 69 320.9 320.9 289.0 321.0 0.02 25 249 10375 -57.7 -65.7 35 8.0 -57.8 265 69 320.7 320.7 289.0 320.7 0.02 26 217 11231 -64.1 -73.1 28 9.0 -64.1 270 68 323.6 323.6 289.9 323.6 0.01 27 215 11288 -64.3 -73.3 28 9.0 -64.4 270 68 324.2 324.2 290.0 324.2 0.01 28 200 11730 -64.5 -73.5 28 9.0 -64.6 275 68 330.6 330.6 291.9 330.7 0.01 29 188 12107 -64.9 -73.9 28 9.0 -65.0 275 62 335.9 335.9 293.3 335.9 0.01 30 176 12516 -58.3 -67.3 31 9.0 -58.5 275 56 353.1 353.1 297.3 353.2 0.03 31 150 13530 -54.5 -63.5 32 9.0 -54.8 275 40 376.2 376.2 301.6 376.4 0.05 32 140 13972 -54.1 -63.1 32 9.0 -54.4 278 38 384.4 384.4 303.0 384.6 0.06 33 100 16130 -54.5 -64.5 28 10.0 -54.9 290 29 422.4 422.4 308.0 422.8 0.07 34 70 18400 -55.7 -65.7 28 10.0 -56.2 295 23 465.2 465.2 312.3 465.7 0.08 35 50 20550 -54.5 -65.5 25 11.0 -55.3 310 17 515.0 515.1 316.0 515.8 0.11 36 40 21973 -56.5 -67.5 24 11.0 -57.3 544.0 544.0 317.8 544.7 0.11 TRP 215 11288 -64.3 -73.3 28 9.0 -64.4 270 68 324.2 324.2 290.0 324.2 0.01 WND 251 10325 -56.9 -64.9 36 8.0 -57.0 265 69 321.1 321.1 289.1 321.2 0.02 Sounding variables and indices 1000-500 mb thick: 5467.00 m Freezing level: 740.98 mb = 2541.11 m = 8336.87 ft Wetbulb zero: 966.44 mb = 378.16 m = 1240.67 ft Precipitable water: 0.73 inches Sfc-500 mean rel hum: 80.66 % Est. max temperature: 16.82 C = 62.27 F Sfc-Lift cond lev (LCL): 975.95 mb = 299.20 m = 981.61 ft T: 1.51 C 700-500 lapse rate: 6.32 C/km ThetaE index: 0.58 C Layer 957.0- 938.0 mb Conv cond level (CCL): 641.35 mb = 3666.60 m = 12029.37 ft Mean mixing ratio: 3.71 g/kg Conv temperature: 29.70 C = 85.45 F Cap Strength: 17.30 C Lifted Index: 18.91 C Risk: None Lifted Index @300 mb: 21.72 C Lifted Index @700 mb: 14.63 C Showalter Index: 9.71 C Risk: None Total Totals Index: 38.40 C Risk: None Vertical Totals Index: 21.70 C Cross Totals Index: 16.70 C K Index: 18.50 Risk: < 20 % chance of thunderstorms Sweat Index: 70.00 Risk: None Energy Index: 2.86 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.48 J/kg Max Up Vert Vel: 7.41 m/s Conv Inhibition (B-): 37991.33 J/kg Cap Strength: 18.79 C Lift Cond Lev (LCL): 912.60 mb = 839.57 m = 2754.45 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 309 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 ---------------------------------------------------------- 0 999 111 45 3 -2.1 -2.1 | 121 22 -19.2 11.5 1 925 731 70 17 -16.0 -5.8 | 103 34 -33.0 7.8 2 850 1415 30 11 -5.5 -9.5 | 100 23 -22.6 4.1 3 700 2977 275 29 28.9 -2.5 | 227 16 11.8 11.1 4 500 5570 270 48 48.0 -0.0 | 246 34 30.9 13.6 5 400 7190 270 52 52.0 -0.0 | 249 37 34.9 13.6 6 300 9170 265 66 65.7 5.8 | 248 52 48.7 19.4 7 251 10325 265 69 68.7 6.0 | 249 55 51.7 19.6 8 250 10350 265 69 68.7 6.0 | 249 55 51.7 19.6 9 215 11288 270 68 68.0 -0.0 | 255 53 50.9 13.6 10 200 11730 275 68 67.7 -5.9 | 261 51 50.7 7.7 11 150 13530 275 40 39.8 -3.5 | 246 25 22.8 10.1 12 100 16130 290 29 27.3 -9.9 | 250 11 10.2 3.7 13 70 18400 295 23 20.8 -9.7 | 224 5 3.8 3.9 14 50 20550 310 17 13.0 -10.9 | 123 5 -4.0 2.7 Wind Parameters Mean winds (0-6000m): 278.5 at 29.1 knts Storm direction: 308.5 at 21.8 knts Shear (0-3000m) pos: 2.0 neg: 7.4 tot: 9.3 10-3/s Storm rel Dir Shear (0-3000m): 108.1 deg Storm rel helicity (0-3000m) pos: 5.1 neg: -142.0 tot: -136.9 m^2/s^2 ave: -45.6 10^-3 m/s^2 rel: -0.48 Storm rel vorticity (0-3000m) horiz: 12.2 stream: -5.9 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.15 Bulk Shear: 177.38 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 66 9 112 27| 11.9 0.0 11.9| 0.0 -48.8 -48.8 -97.6 -0.62| 12.1 -7.5 1000 63 12 106 29| 5.9 2.2 8.1| 0.0 -71.5 -71.5 -71.5 -0.49| 10.6 -5.2 1500 55 12 104 28| 4.0 4.0 7.9| 3.0 -89.4 -86.4 -57.6 -0.43| 10.0 -4.3 2000 37 13 97 25| 3.0 5.9 8.9| 3.0-118.8-115.7 -57.9 -0.47| 10.5 -5.0 2500 10 15 87 20| 2.4 7.1 9.5| 3.0-128.8-125.7 -50.3 -0.52| 11.7 -6.1 3000 333 17 81 9| 2.0 7.4 9.3| 5.1-142.0-136.9 -45.6 -0.48| 12.2 -5.9 4000 295 21 202 5| 1.5 6.5 8.0| 24.5-142.0-117.5 -29.4 -0.39| 10.1 -3.9 5000 284 25 224 11| 1.2 6.0 7.1| 41.1-142.0-100.9 -20.2 -0.33| 8.8 -2.9 6000 279 29 232 15| 1.0 5.4 6.4| 52.4-142.0 -89.6 -14.9 -0.30| 7.8 -2.3 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250420.00.gif