UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025103012.upa.cvt Date: 1200Z 30 OCT 25 Searching for U2820... Searching the city database file for: U2820 ... Date:1200Z 30 OCT 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 81 45 1 SFC 997 106 5.6 4.0 89 1.6 4.8 45 1 279.0 279.9 278.2 293.0 5.11 2 925 714 1.6 -0.6 85 2.2 0.7 245 5 280.9 281.6 277.6 292.0 3.95 3 850 1390 -2.9 -4.6 88 1.7 -3.6 240 9 283.1 283.7 277.7 292.2 3.19 4 723 2653 -11.1 -13.0 86 1.9 -11.6 261 12 287.5 287.9 278.3 293.3 1.94 5 720 2685 -11.7 -13.6 86 1.9 -12.2 261 12 287.2 287.5 278.0 292.7 1.86 6 712 2771 -11.7 -14.3 81 2.6 -12.4 263 13 288.1 288.4 278.3 293.4 1.77 7 700 2901 -12.3 -16.9 69 4.6 -13.5 265 13 288.9 289.1 278.3 293.3 1.45 8 669 3245 -14.1 -21.1 55 7.0 -15.7 264 14 290.6 290.8 278.6 293.9 1.06 9 500 5390 -28.7 -36.7 46 8.0 -29.6 255 17 298.0 298.1 281.0 299.2 0.33 10 477 5726 -31.1 -41.1 37 10.0 -32.0 260 17 299.1 299.2 281.3 299.9 0.22 11 432 6420 -37.3 -47.3 35 10.0 -37.8 271 18 299.8 299.9 281.4 300.3 0.12 12 402 6916 -39.3 -49.3 34 10.0 -39.8 279 19 303.5 303.5 283.0 303.9 0.11 13 400 6950 -39.7 -49.7 34 10.0 -40.2 280 19 303.4 303.4 282.9 303.8 0.10 14 308 8689 -50.7 -61.7 26 11.0 -50.9 303 34 311.5 311.5 285.9 311.7 0.03 15 300 8860 -50.9 -61.9 26 11.0 -51.1 305 36 313.6 313.6 286.6 313.7 0.03 16 291 9059 -51.1 -62.1 26 11.0 -51.3 305 38 316.1 316.1 287.5 316.2 0.03 17 253 9963 -55.1 -67.1 21 12.0 -55.3 305 46 323.0 323.0 289.7 323.1 0.02 18 250 10040 -54.5 -66.5 21 12.0 -54.7 305 46 325.0 325.0 290.3 325.1 0.02 19 201 11438 -52.9 -65.9 19 13.0 -53.2 295 35 348.5 348.5 296.3 348.6 0.03 20 200 11470 -53.5 -66.5 19 13.0 -53.8 295 35 348.0 348.1 296.2 348.2 0.02 21 158 12979 -56.3 -72.3 12 16.0 -56.6 287 32 367.6 367.6 300.1 367.6 0.01 22 150 13310 -55.1 -71.1 12 16.0 -55.4 285 31 375.1 375.1 301.5 375.2 0.02 23 123 14576 -54.9 -72.9 9 18.0 -55.3 275 29 397.4 397.4 304.9 397.5 0.02 24 100 15890 -57.5 -75.5 8 18.0 -57.9 265 27 416.6 416.6 307.3 416.7 0.01 25 70 18120 -61.7 -79.7 7 18.0 -62.0 270 29 452.4 452.4 311.1 452.4 0.01 26 57 19387 -63.7 -82.7 6 19.0 -64.0 264 29 475.2 475.2 313.1 475.3 0.01 27 50 20190 -64.7 -83.7 6 19.0 -65.0 260 29 491.0 491.0 314.3 491.1 0.01 28 30 23270 -67.1 -85.1 6 18.0 -67.5 265 31 561.7 561.7 318.8 561.8 0.01 29 20 25700 -71.5 -89.5 5 18.0 -71.8 265 38 617.3 617.3 321.4 617.4 0.01 30 12 28707 -73.7 -90.7 6 17.0 -74.0 261 51 706.6 706.6 324.6 706.7 0.01 31 11 29221 -69.9 -87.9 6 18.0 -70.5 261 54 738.2 738.2 325.6 738.4 0.02 32 10 29790 -69.7 -87.7 6 18.0 -70.4 260 56 759.4 759.4 326.2 759.5 0.02 33 8.4 30822 -72.3 -89.3 6 17.0 -72.9 788.0 788.0 327.0 788.1 0.02 34 7.0 31902 -69.6 -87.3 6 17.7 -70.6 265 62 841.3 841.3 328.2 841.5 0.03 35 6.4 32438 -68.3 -86.3 6 18.0 -69.6 868.7 868.7 328.8 869.0 0.04 TRP 253 9963 -55.1 -67.1 21 12.0 -55.3 305 46 323.0 323.0 289.7 323.1 0.02 WND 7.0 31902 -69.6 -87.3 6 17.7 -70.6 265 62 841.3 841.3 328.2 841.5 0.03 Sounding variables and indices 1000-500 mb thick: 5309.00 m Freezing level: 898.33 mb = 954.36 m = 3131.05 ft Wetbulb zero: 913.19 mb = 816.73 m = 2679.52 ft Precipitable water: 0.46 inches Sfc-500 mean rel hum: 69.67 % Est. max temperature: 9.81 C = 49.66 F Sfc-Lift cond lev (LCL): 972.73 mb = 305.57 m = 1002.52 ft T: 4.29 C 700-500 lapse rate: 6.59 C/km ThetaE index: 1.01 C Layer 925.0- 850.0 mb Conv cond level (CCL): 901.86 mb = 916.58 m = 3007.11 ft Mean mixing ratio: 4.32 g/kg Conv temperature: 8.21 C = 46.78 F Cap Strength: 2.58 C Lifted Index: 5.79 C Risk: None Lifted Index @300 mb: 15.12 C Lifted Index @700 mb: 1.80 C Showalter Index: 5.91 C Risk: None Total Totals Index: 49.90 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 25.80 C Cross Totals Index: 24.10 C K Index: 16.60 Risk: < 20 % chance of thunderstorms Sweat Index: 53.00 Risk: None Energy Index: 1.42 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 8.74 J/kg Max Up Vert Vel: 4.18 m/s Conv Inhibition (B-): 64404.20 J/kg Cap Strength: 5.55 C Lift Cond Lev (LCL): 918.74 mb = 768.28 m = 2520.56 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 287 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 ---------------------------------------------------------- 0 997 106 45 1 -0.7 -0.7 | 102 10 -9.5 2.1 1 925 714 245 5 4.5 2.1 | 139 6 -4.3 4.9 2 850 1390 240 9 7.8 4.5 | 172 7 -1.0 7.3 3 700 2901 265 13 13.0 1.1 | 227 6 4.1 3.9 4 500 5390 255 17 16.4 4.4 | 227 10 7.6 7.2 5 400 6950 280 19 18.7 -3.3 | 273 10 9.9 -0.5 6 300 8860 305 36 29.5 -20.6 | 311 27 20.7 -17.9 7 253 9963 305 46 37.7 -26.4 | 309 37 28.9 -23.6 8 250 10040 305 46 37.7 -26.4 | 309 37 28.9 -23.6 9 200 11470 295 35 31.7 -14.8 | 298 26 22.9 -12.0 10 150 13310 285 31 29.9 -8.0 | 284 22 21.1 -5.3 11 100 15890 265 27 26.9 2.4 | 254 19 18.1 5.1 12 70 18120 270 29 29.0 -0.0 | 262 20 20.2 2.8 13 50 20190 260 29 28.6 5.0 | 248 21 19.7 7.8 14 30 23270 265 31 30.9 2.7 | 256 23 22.1 5.5 15 20 25700 265 38 37.9 3.3 | 258 30 29.0 6.1 16 10 29790 260 56 55.1 9.7 | 255 48 46.3 12.5 Wind Parameters Mean winds (0-6000m): 257.4 at 12.3 knts Storm direction: 287.4 at 9.2 knts Shear (0-3000m) pos: 1.2 neg: 1.4 tot: 2.6 10-3/s Storm rel Dir Shear (0-3000m): 125.1 deg Storm rel helicity (0-3000m) pos: 23.8 neg: -3.8 tot: 20.0 m^2/s^2 ave: 6.7 10^-3 m/s^2 rel: 0.65 Storm rel vorticity (0-3000m) horiz: 3.4 stream: 2.2 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.69 Bulk Shear: 12.62 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 ------------------------------------------------------------------------------- 500 244 3 121 8| 0.0 5.2 5.2| 4.0 -3.8 0.1 0.3 0.16| 7.1 1.1 1000 246 4 132 7| 0.0 4.3 4.3| 10.9 -3.8 7.0 7.0 0.47| 5.9 2.8 1500 243 6 145 7| 0.8 2.8 3.6| 15.1 -3.8 11.3 7.5 0.55| 4.8 2.6 2000 245 7 155 6| 1.0 2.1 3.1| 18.4 -3.8 14.6 7.3 0.59| 4.1 2.5 2500 249 8 165 6| 1.2 1.7 2.9| 21.7 -3.8 17.9 7.2 0.64| 3.7 2.4 3000 253 9 174 5| 1.2 1.4 2.6| 23.8 -3.8 20.0 6.7 0.65| 3.4 2.2 4000 256 10 190 5| 0.9 1.3 2.2| 24.0 -3.8 20.1 5.0 0.60| 2.8 1.7 5000 257 11 202 6| 0.7 1.2 2.0| 24.0 -4.2 19.8 4.0 0.55| 2.4 1.3 6000 257 12 210 6| 0.9 1.0 1.9| 33.4 -4.3 29.1 4.9 0.59| 2.4 1.4 Wrote GIF file: /home/apache/climate/data/raob//U2820/skewt/U2820.skewt.20251030.12.gif