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 U3921... Searching the city database file for: U3921 ... Date:0000Z 1 MAY 25 Station: U3921 WMO ident: 23921 Latitude: 60.68 Longitude: 60.43 ------------------------------------------------------------------------------- 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 32 195 5 SFC 992 98 5.6 1.9 77 3.7 3.9 195 5 279.4 280.1 277.4 291.6 4.42 2 930 625 4.2 -0.1 74 4.3 2.3 232 16 283.2 283.9 278.9 294.6 4.08 3 925 669 3.8 -0.5 73 4.3 1.9 235 17 283.2 283.9 278.8 294.4 3.98 4 850 1351 0.0 -3.7 76 3.7 -1.5 265 27 286.1 286.7 279.5 296.0 3.42 5 752 2322 -5.3 -10.3 68 5.0 -7.0 256 24 290.6 291.0 280.2 297.5 2.32 6 732 2533 -7.3 -13.3 62 6.0 -9.2 253 24 290.7 291.0 279.7 296.3 1.87 7 700 2879 -10.5 -15.0 69 4.5 -11.8 250 23 290.9 291.2 279.6 296.0 1.70 8 686 3034 -11.9 -15.9 72 4.0 -13.0 251 24 291.0 291.3 279.5 295.9 1.61 9 591 4159 -19.5 -22.4 78 2.9 -20.1 255 28 294.8 295.0 280.6 298.2 1.07 10 518 5125 -26.5 -31.4 63 4.9 -27.2 259 32 297.7 297.8 281.1 299.5 0.53 11 500 5380 -28.7 -33.7 62 5.0 -29.3 260 33 298.0 298.1 281.1 299.5 0.44 12 400 6930 -40.7 -45.7 59 5.0 -41.0 250 42 302.1 302.1 282.4 302.7 0.16 13 309 8631 -54.9 -60.9 47 6.0 -55.0 245 40 305.4 305.4 283.6 305.5 0.03 14 300 8820 -54.3 -60.3 48 6.0 -54.4 250 42 308.8 308.8 284.9 309.0 0.04 15 250 10000 -52.1 -59.1 43 7.0 -52.3 250 40 328.6 328.6 291.4 328.8 0.05 16 213 11046 -49.1 -58.1 34 9.0 -49.4 246 41 348.7 348.7 296.4 349.0 0.07 17 200 11460 -49.5 -59.5 30 10.0 -49.8 245 42 354.4 354.4 297.6 354.7 0.06 18 150 13350 -47.7 -62.7 16 15.0 -48.4 250 33 387.9 387.9 303.5 388.1 0.06 19 129 14341 -49.5 -66.5 12 17.0 -50.2 252 32 401.7 401.7 305.5 401.9 0.04 20 119 14872 -47.5 -66.5 10 19.0 -48.4 253 32 414.8 414.8 307.1 415.0 0.04 21 103 15818 -51.1 -72.1 6 21.0 -51.8 255 31 425.4 425.4 308.3 425.5 0.02 22 100 16010 -51.1 -72.1 6 21.0 -51.9 255 31 429.0 429.0 308.7 429.1 0.02 23 97 16207 -51.5 -73.5 6 22.0 -52.3 255 29 432.0 432.0 309.0 432.1 0.02 24 73 18064 -47.5 -73.5 3 26.0 -49.0 259 15 477.0 477.0 313.2 477.2 0.03 25 70 18340 -48.9 -73.9 4 25.0 -50.3 260 13 479.8 479.8 313.4 479.9 0.02 26 54 20037 -51.5 -75.5 4 24.0 -52.8 233 18 510.7 510.8 315.7 510.9 0.03 27 50 20540 -49.3 -74.3 4 25.0 -51.1 225 19 527.3 527.3 316.8 527.5 0.03 28 47 20948 -47.1 -73.1 4 26.0 -49.4 542.0 542.0 317.6 542.3 0.04 TRP 309 8631 -54.9 -60.9 47 6.0 -55.0 245 40 305.4 305.4 283.6 305.5 0.03 WND Sounding variables and indices 1000-500 mb thick: 5348.00 m Freezing level: 850.00 mb = 1351.00 m = 4432.36 ft Wetbulb zero: 883.18 mb = 1042.11 m = 3418.95 ft Precipitable water: 0.48 inches Sfc-500 mean rel hum: 71.81 % Est. max temperature: 12.68 C = 54.83 F Sfc-Lift cond lev (LCL): 937.11 mb = 562.89 m = 1846.73 ft T: 4.37 C 700-500 lapse rate: 7.28 C/km ThetaE index: 1.63 C Layer 732.0- 591.0 mb Conv cond level (CCL): 814.59 mb = 1688.31 m = 5539.01 ft Mean mixing ratio: 4.10 g/kg Conv temperature: 13.89 C = 57.00 F Cap Strength: 4.71 C Lifted Index: 4.74 C Risk: None Lifted Index @300 mb: 10.72 C Lifted Index @700 mb: 2.66 C Showalter Index: 3.16 C Risk: None Total Totals Index: 53.70 C Risk: Scattered heavy thunderstorms Vertical Totals Index: 28.70 C Cross Totals Index: 25.00 C K Index: 20.50 Risk: 20-40 % chance of thunderstorms Sweat Index: 181.00 Risk: None Energy Index: 0.73 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 18.12 J/kg Max Up Vert Vel: 6.02 m/s Conv Inhibition (B-): 30712.42 J/kg Cap Strength: 4.74 C Lift Cond Lev (LCL): 883.34 mb = 1040.67 m = 3414.22 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 285 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 ---------------------------------------------------------- 0 992 98 195 5 1.3 4.8 | 120 20 -17.5 10.0 1 925 669 235 17 13.9 9.8 | 162 16 -4.8 14.9 2 850 1351 265 27 26.9 2.4 | 227 11 8.1 7.5 3 700 2879 250 23 21.6 7.9 | 192 13 2.8 13.1 4 500 5380 260 33 32.5 5.7 | 232 18 13.7 10.9 5 400 6930 250 42 39.5 14.4 | 227 28 20.7 19.6 6 309 8631 245 40 36.3 16.9 | 218 28 17.5 22.1 7 300 8820 250 42 39.5 14.4 | 227 28 20.7 19.6 8 250 10000 250 40 37.6 13.7 | 225 27 18.8 18.9 9 200 11460 245 42 38.1 17.7 | 220 30 19.3 22.9 10 150 13350 250 33 31.0 11.3 | 217 21 12.2 16.5 11 100 16010 255 31 29.9 8.0 | 220 17 11.2 13.2 12 70 18340 260 13 12.8 2.3 | 141 10 -6.0 7.4 13 50 20540 225 19 13.4 13.4 | 164 19 -5.3 18.6 Wind Parameters Mean winds (0-6000m): 255.4 at 26.0 knts Storm direction: 285.4 at 19.5 knts Shear (0-3000m) pos: 4.3 neg: 1.0 tot: 5.2 10-3/s Storm rel Dir Shear (0-3000m): 76.4 deg Storm rel helicity (0-3000m) pos: 117.5 neg: -22.3 tot: 95.2 m^2/s^2 ave: 31.7 10^-3 m/s^2 rel: 0.57 Storm rel vorticity (0-3000m) horiz: 6.5 stream: 3.7 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 0.42 Bulk Shear: 42.69 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 ------------------------------------------------------------------------------- 500 225 10 137 17| 12.1 0.0 12.1| 58.2 0.0 58.2 116.5 0.95| 12.7 12.0 1000 238 15 155 15| 10.9 0.0 10.9| 96.9 0.0 96.9 96.9 0.93| 12.1 11.3 1500 250 19 173 12| 8.5 0.0 8.5|114.4 -3.1 111.4 74.3 0.88| 10.5 9.2 2000 253 20 184 11| 6.4 0.7 7.1|114.4 -10.7 103.8 51.9 0.73| 8.5 6.2 2500 254 21 188 11| 5.1 1.0 6.2|114.4 -18.3 96.2 38.5 0.62| 7.3 4.5 3000 254 22 190 11| 4.3 1.0 5.2|117.5 -22.3 95.2 31.7 0.57| 6.5 3.7 4000 253 23 194 12| 3.8 0.7 4.5|133.1 -22.3 110.8 27.7 0.61| 5.4 3.3 5000 255 24 201 12| 3.5 0.6 4.1|150.0 -22.3 127.8 25.6 0.64| 4.8 3.1 6000 255 26 209 13| 2.9 0.7 3.6|155.1 -25.6 129.4 21.6 0.57| 4.5 2.6 Wrote GIF file: /home/apache/climate/data/raob//U3921/skewt/U3921.skewt.20250501.00.gif