UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025043000.upa.cvt Date: 0000Z 30 APR 25 Searching for U2820... Searching the city database file for: U2820 ... Date:0000Z 30 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 101 360 3 SFC 999 109 -3.1 -6.7 76 3.6 -4.3 360 3 270.1 270.5 269.0 276.4 2.31 2 925 709 -7.1 -10.7 75 3.6 -8.1 40 17 272.0 272.4 269.4 277.1 1.82 3 878 1117 -9.7 -13.8 72 4.1 -10.8 43 17 273.4 273.7 269.7 277.7 1.50 4 850 1369 -9.3 -14.3 67 5.0 -10.6 45 17 276.4 276.7 271.5 280.7 1.48 5 843 1433 -9.5 -15.5 62 6.0 -11.0 41 17 276.8 277.1 271.6 280.8 1.36 6 733 2501 -14.5 -27.5 32 13.0 -16.7 340 22 282.7 282.8 273.6 284.4 0.55 7 713 2710 -16.5 -28.5 35 12.0 -18.4 328 22 282.7 282.8 273.6 284.3 0.51 8 700 2848 -16.3 -27.3 38 11.0 -18.1 320 23 284.4 284.5 274.7 286.2 0.58 9 691 2945 -15.5 -26.5 38 11.0 -17.5 319 23 286.4 286.5 275.8 288.4 0.63 10 600 3998 -20.7 -36.7 22 16.0 -22.7 309 29 292.2 292.2 278.2 293.1 0.27 11 537 4808 -26.3 -44.3 17 18.0 -27.8 300 33 294.9 294.9 279.3 295.4 0.14 12 500 5320 -29.9 -47.9 16 18.0 -31.1 295 36 296.6 296.6 280.0 296.9 0.10 13 475 5684 -32.9 -50.9 15 18.0 -33.9 298 35 297.3 297.3 280.3 297.5 0.07 14 421 6528 -37.5 -56.5 12 19.0 -38.2 307 32 301.8 301.8 282.1 302.0 0.04 15 400 6880 -40.1 -59.1 11 19.0 -40.7 310 31 302.9 302.9 282.6 303.0 0.03 16 355 7678 -47.3 -66.3 10 19.0 -47.6 310 33 303.7 303.7 282.9 303.8 0.01 17 300 8770 -53.9 -72.9 8 19.0 -54.1 310 36 309.4 309.4 285.1 309.4 0.01 18 287 9053 -54.7 -73.7 8 19.0 -54.9 305 35 312.2 312.2 286.1 312.2 0.01 19 269 9468 -52.7 -72.7 7 20.0 -52.9 305 35 320.9 320.9 289.0 321.0 0.01 20 250 9940 -51.9 -71.9 7 20.0 -52.2 305 35 328.9 328.9 291.4 328.9 0.01 21 205 11238 -49.5 -69.5 8 20.0 -50.0 305 31 351.9 351.9 297.1 352.0 0.02 22 200 11400 -49.5 -69.5 8 20.0 -50.0 305 31 354.4 354.4 297.6 354.5 0.02 23 150 13280 -49.9 -70.9 7 21.0 -50.5 300 29 384.1 384.1 302.9 384.2 0.02 24 100 15910 -52.1 -74.1 5 22.0 -52.8 315 23 427.1 427.1 308.5 427.1 0.02 25 70 18220 -53.1 -75.1 5 22.0 -54.0 300 15 470.8 470.8 312.7 470.9 0.02 26 50 20390 -52.1 -74.1 5 22.0 -53.4 255 9 520.7 520.7 316.4 520.9 0.03 27 30 23700 -50.9 -72.9 6 22.0 -53.1 220 13 605.9 605.9 320.9 606.4 0.07 28 23 25428 -51.7 -73.7 5 22.0 -54.3 197 17 651.4 651.4 322.7 652.0 0.08 29 20 26340 -49.5 -72.5 5 23.0 -52.9 185 19 684.7 684.7 324.0 685.6 0.11 30 14 28700 -45.5 -69.5 5 24.0 -51.4 177 16 771.7 771.9 326.6 774.0 0.23 31 12 29725 -47.3 -70.3 5 23.0 -52.9 174 15 800.2 800.3 327.3 802.6 0.24 32 11 30307 -43.1 -67.1 5 24.0 -50.8 172 14 835.6 835.8 328.2 839.9 0.42 33 10 30950 -42.7 -66.7 5 24.0 -51.0 170 13 860.2 860.4 328.7 865.4 0.49 34 7.5 32914 -37.5 -62.5 6 25.0 -49.5 955.0 955.7 330.7 968.6 1.14 TRP 287 9053 -54.7 -73.7 8 19.0 -54.9 305 35 312.2 312.2 286.1 312.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 5219.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.20 inches Sfc-500 mean rel hum: 41.52 % Est. max temperature: 3.24 C = 37.83 F Sfc-Lift cond lev (LCL): 943.90 mb = 551.29 m = 1808.66 ft T: -6.05 C 700-500 lapse rate: 5.50 C/km ThetaE index: 0.06 C Layer 713.0- 700.0 mb Conv cond level (CCL): 794.45 mb = 1886.10 m = 6187.91 ft Mean mixing ratio: 1.98 g/kg Conv temperature: 6.09 C = 42.96 F Cap Strength: 15.52 C Lifted Index: 16.46 C Risk: None Lifted Index @300 mb: 23.01 C Lifted Index @700 mb: 8.70 C Showalter Index: 13.50 C Risk: None Total Totals Index: 36.20 C Risk: None Vertical Totals Index: 20.60 C Cross Totals Index: 15.60 C K Index: -4.70 Risk: None Sweat Index: 70.00 Risk: None Energy Index: 3.44 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.10 J/kg Max Up Vert Vel: 4.03 m/s Conv Inhibition (B-): 68578.62 J/kg Cap Strength: 16.34 C Lift Cond Lev (LCL): 895.53 mb = 962.15 m = 3156.61 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 350 at 19 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 ---------------------------------------------------------- 0 999 109 360 3 -0.0 -3.0 | 168 16 -3.4 15.2 1 925 709 40 17 -10.9 -13.0 | 110 15 -14.3 5.2 2 850 1369 45 17 -12.0 -12.0 | 112 17 -15.4 6.2 3 700 2848 320 23 14.8 -17.6 | 267 11 11.4 0.6 4 500 5320 295 36 32.6 -15.2 | 264 29 29.3 3.0 5 400 6880 310 31 23.7 -19.9 | 275 20 20.4 -1.7 6 300 8770 310 36 27.6 -23.1 | 282 25 24.2 -4.9 7 287 9053 305 35 28.7 -20.1 | 274 25 25.3 -1.9 8 250 9940 305 35 28.7 -20.1 | 274 25 25.3 -1.9 9 200 11400 305 31 25.4 -17.8 | 269 22 22.0 0.4 10 150 13280 300 29 25.1 -14.5 | 260 22 21.8 3.7 11 100 15910 315 23 16.3 -16.3 | 261 13 12.9 1.9 12 70 18220 300 15 13.0 -7.5 | 222 14 9.6 10.7 13 50 20390 255 9 8.7 2.3 | 195 21 5.3 20.5 14 30 23700 220 13 8.4 10.0 | 190 29 5.0 28.2 15 20 26340 185 19 1.7 18.9 | 177 37 -1.7 37.1 16 10 30950 170 13 -2.3 12.8 | 170 32 -5.6 31.0 Wind Parameters Mean winds (0-6000m): 319.6 at 24.7 knts Storm direction: 349.6 at 18.5 knts Shear (0-3000m) pos: 2.6 neg: 4.9 tot: 7.5 10-3/s Storm rel Dir Shear (0-3000m): 101.2 deg Storm rel helicity (0-3000m) pos: 2.9 neg: -73.7 tot: -70.7 m^2/s^2 ave: -23.6 10^-3 m/s^2 rel: -0.60 Storm rel vorticity (0-3000m) horiz: 8.4 stream: -5.1 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.11 Bulk Shear: 74.75 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 33 9 143 14| 12.6 0.0 12.6| 0.0 -33.6 -33.6 -67.2 -0.82| 13.2-10.8 1000 38 13 126 14| 7.7 0.0 7.7| 1.3 -40.4 -39.1 -39.1 -0.72| 8.6 -6.2 1500 39 14 120 14| 5.1 1.3 6.4| 2.1 -49.6 -47.5 -31.7 -0.67| 7.3 -4.9 2000 32 15 114 13| 3.8 3.4 7.2| 2.1 -60.8 -58.7 -29.3 -0.62| 8.0 -4.9 2500 20 17 106 10| 3.1 4.6 7.7| 2.1 -68.0 -65.9 -26.4 -0.65| 8.7 -5.7 3000 7 18 97 6| 2.6 4.9 7.5| 2.9 -73.7 -70.7 -23.6 -0.60| 8.4 -5.1 4000 346 20 304 2| 1.9 4.6 6.5| 4.0 -74.8 -70.8 -17.7 -0.53| 7.2 -3.8 5000 329 23 278 8| 1.5 4.4 5.9| 4.0 -85.7 -81.8 -16.4 -0.49| 6.6 -3.2 6000 320 25 273 13| 1.6 3.7 5.3| 22.2 -89.7 -67.5 -11.2 -0.41| 6.1 -2.5 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20250430.00.gif