UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101100.upa.cvt Date: 0000Z 11 OCT 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 11 OCT 25 Station: U4641 WMO ident: 24641 Latitude: 63.77 Longitude: 121.62 ------------------------------------------------------------------------------- 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 1012 107 -6.5 -7.8 90 1.3 -6.9 295 3 265.7 266.1 265.6 271.4 2.10 1 1000 200 -7.5 -9.9 83 2.4 -8.2 315 5 265.6 265.9 265.0 270.5 1.80 2 925 806 -10.1 -12.5 83 2.4 -10.7 10 9 269.0 269.2 266.9 273.3 1.58 3 850 1452 -14.1 -16.6 81 2.5 -14.6 345 9 271.4 271.6 267.9 274.8 1.23 4 839 1551 -14.7 -17.2 81 2.5 -15.2 348 9 271.8 272.0 268.1 275.1 1.18 5 735 2552 -15.1 -17.4 83 2.3 -15.6 22 10 281.8 282.0 274.4 285.7 1.33 6 700 2920 -16.5 -18.7 83 2.2 -17.0 35 11 284.2 284.4 275.6 287.9 1.25 7 550 4693 -27.5 -30.5 76 3.0 -27.9 35 27 291.5 291.6 278.2 293.2 0.55 8 500 5370 -33.1 -36.1 74 3.0 -33.4 35 33 292.7 292.7 278.6 293.8 0.35 9 400 6900 -45.1 -48.4 69 3.3 -45.2 40 33 296.4 296.4 279.9 296.8 0.12 10 379 7257 -47.9 -51.2 69 3.3 -48.0 42 33 297.3 297.3 280.3 297.6 0.09 11 300 8770 -55.5 -59.2 63 3.7 -55.6 50 35 307.1 307.1 284.3 307.3 0.04 12 285 9097 -56.7 -60.4 63 3.7 -56.8 50 38 309.9 309.9 285.4 310.1 0.04 13 268 9491 -53.7 -57.7 61 4.0 -53.8 52 37 319.8 319.8 288.8 320.0 0.06 14 250 9940 -52.9 -57.1 60 4.2 -53.0 55 35 327.4 327.4 291.0 327.7 0.07 15 249 9966 -52.9 -57.2 59 4.3 -53.0 55 35 327.8 327.8 291.2 328.1 0.07 16 200 11380 -51.3 -57.3 49 6.0 -51.5 65 27 351.5 351.5 297.0 351.9 0.08 17 188 11782 -50.9 -57.9 43 7.0 -51.2 66 25 358.5 358.5 298.5 358.8 0.08 18 150 13250 -51.7 -61.7 29 10.0 -52.1 70 19 381.0 381.0 302.5 381.3 0.06 19 100 15870 -53.5 -68.5 14 15.0 -54.1 70 11 424.4 424.4 308.2 424.6 0.04 20 93 16336 -52.3 -68.3 13 16.0 -53.0 77 10 435.6 435.6 309.4 435.9 0.04 21 70 18160 -53.7 -71.7 9 18.0 -54.5 105 7 469.5 469.5 312.6 469.7 0.03 22 53 19946 -55.1 -74.1 8 19.0 -56.0 138 9 505.1 505.2 315.3 505.3 0.03 23 50 20320 -54.3 -74.3 7 20.0 -55.4 145 9 515.5 515.5 316.0 515.7 0.03 24 30 23620 -50.3 -73.3 5 23.0 -52.7 175 21 607.5 607.5 321.0 608.0 0.06 25 20 26300 -45.1 -70.1 4 25.0 -50.0 195 25 698.1 698.2 324.4 699.4 0.15 26 15 28232 -42.7 -68.7 4 26.0 -49.6 766.0 766.1 326.4 768.3 0.25 27 12 29733 -44.1 -70.1 4 26.0 -51.2 811.5 811.6 327.6 814.0 0.25 TRP 285 9097 -56.7 -60.4 63 3.7 -56.8 50 38 309.9 309.9 285.4 310.1 0.04 WND Sounding variables and indices 1000-500 mb thick: 5170.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.26 inches Sfc-500 mean rel hum: 80.29 % Est. max temperature: -1.24 C = 29.76 F Sfc-Lift cond lev (LCL): 991.15 mb = 269.07 m = 882.78 ft T: -7.80 C 700-500 lapse rate: 6.78 C/km ThetaE index: 0.85 C Layer 1000.0- 925.0 mb Conv cond level (CCL): 885.74 mb = 1137.32 m = 3731.32 ft Mean mixing ratio: 1.70 g/kg Conv temperature: -2.01 C = 28.38 F Cap Strength: 16.75 C Lifted Index: 17.15 C Risk: None Lifted Index @300 mb: 24.87 C Lifted Index @700 mb: 12.37 C Showalter Index: 14.90 C Risk: None Total Totals Index: 35.50 C Risk: None Vertical Totals Index: 19.00 C Cross Totals Index: 16.50 C K Index: 0.20 Risk: None Sweat Index: 51.00 Risk: None Energy Index: 4.06 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 7.98 J/kg Max Up Vert Vel: 4.00 m/s Conv Inhibition (B-): 69668.91 J/kg Cap Strength: 17.10 C Lift Cond Lev (LCL): 925.58 mb = 801.16 m = 2628.44 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 59 at 13 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 1012 107 295 3 2.7 -1.3 | 248 15 13.9 5.5 1 1000 200 315 5 3.5 -3.5 | 258 15 14.7 3.2 2 925 806 10 9 -1.6 -8.9 | 282 10 9.6 -2.1 3 850 1452 345 9 2.3 -8.7 | 278 14 13.5 -1.9 4 700 2920 35 11 -6.3 -9.0 | 295 5 4.9 -2.3 5 500 5370 35 33 -18.9 -27.0 | 21 22 -7.8 -20.3 6 400 6900 40 33 -21.2 -25.3 | 28 21 -10.0 -18.5 7 300 8770 50 35 -26.8 -22.5 | 45 22 -15.6 -15.7 8 285 9097 50 38 -29.1 -24.4 | 45 25 -17.9 -17.7 9 250 9940 55 35 -28.7 -20.1 | 53 22 -17.5 -13.3 10 200 11380 65 27 -24.5 -11.4 | 71 14 -13.3 -4.7 11 150 13250 70 19 -17.9 -6.5 | 92 7 -6.7 0.3 12 100 15870 70 11 -10.3 -3.8 | 196 3 0.8 3.0 13 70 18160 105 7 -6.8 1.8 | 207 10 4.4 8.6 14 50 20320 145 9 -5.2 7.4 | 203 15 6.0 14.1 15 30 23620 175 21 -1.8 20.9 | 199 29 9.3 27.7 16 20 26300 195 25 6.5 24.1 | 210 36 17.6 30.9 Wind Parameters Mean winds (0-6000m): 28.8 at 17.4 knts Storm direction: 58.8 at 13.1 knts Shear (0-3000m) pos: 2.5 neg: 0.2 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 64.5 deg Storm rel helicity (0-3000m) pos: 39.5 neg: -2.5 tot: 36.9 m^2/s^2 ave: 12.3 10^-3 m/s^2 rel: 0.49 Storm rel vorticity (0-3000m) horiz: 4.2 stream: 2.0 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.27 Bulk Shear: 29.18 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 ------------------------------------------------------------------------------- 500 334 6 264 14| 6.7 0.0 6.7| 24.1 0.0 24.1 48.1 0.87| 7.5 6.5 1000 354 7 273 12| 4.2 0.0 4.2| 28.8 -0.7 28.1 28.1 0.64| 6.2 4.0 1500 353 8 275 12| 2.8 0.4 3.2| 30.2 -2.5 27.7 18.5 0.52| 5.0 2.6 2000 355 8 277 12| 2.6 0.3 2.9| 34.5 -2.5 32.0 16.0 0.52| 4.5 2.3 2500 0 9 280 11| 2.4 0.3 2.7| 36.7 -2.5 34.2 13.7 0.48| 4.2 2.0 3000 7 9 283 10| 2.5 0.2 2.7| 39.5 -2.5 36.9 12.3 0.49| 4.2 2.0 4000 18 11 296 9| 1.9 1.1 2.9| 52.0 -2.5 49.5 12.4 0.55| 4.3 2.4 5000 25 14 320 8| 1.5 1.8 3.3| 64.5 -2.5 62.0 12.4 0.51| 4.3 2.2 6000 29 17 342 9| 1.5 1.5 3.0| 75.5 -2.5 73.0 12.2 0.51| 3.9 2.0 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251011.00.gif