UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101800.upa.cvt Date: 0000Z 18 OCT 25 Searching for U1946... Searching the city database file for: U1946 ... Date:0000Z 18 OCT 25 Station: U1946 WMO ident: 21946 Latitude: 70.62 Longitude: 147.90 ------------------------------------------------------------------------------- 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 1002 46 -3.1 -3.1 100 0.0 -3.1 310 29 269.9 270.4 269.9 278.0 3.03 1 1000 62 -3.1 -4.3 91 1.2 -3.5 305 29 270.0 270.5 269.6 277.5 2.77 2 925 677 -5.1 -6.5 90 1.4 -5.5 325 50 274.1 274.5 271.8 281.1 2.54 3 892 963 -5.1 -6.7 89 1.6 -5.7 325 44 277.0 277.4 273.6 284.2 2.59 4 850 1340 -7.7 -10.8 78 3.1 -8.7 325 36 278.1 278.4 273.3 283.7 1.97 5 700 2819 -18.3 -20.2 85 1.9 -18.7 315 27 282.2 282.4 274.3 285.5 1.10 6 663 3221 -21.1 -23.2 83 2.1 -21.5 317 29 283.5 283.6 274.6 286.2 0.89 7 637 3516 -20.7 -23.5 78 2.8 -21.2 318 30 287.2 287.4 276.6 290.0 0.90 8 500 5270 -30.3 -36.3 56 6.0 -30.9 325 38 296.1 296.2 280.1 297.2 0.34 9 485 5486 -31.7 -37.7 55 6.0 -32.3 326 40 297.0 297.0 280.4 298.0 0.31 10 400 6830 -38.5 -45.5 48 7.0 -38.9 335 56 305.0 305.0 283.6 305.5 0.16 11 375 7273 -40.7 -48.2 45 7.4 -41.1 330 62 307.7 307.7 284.6 308.1 0.13 12 300 8770 -48.5 -57.5 34 9.0 -48.7 315 42 317.0 317.0 287.8 317.2 0.05 13 250 9960 -53.5 -62.5 33 9.0 -53.7 315 36 326.5 326.5 290.7 326.7 0.03 14 221 10745 -56.7 -65.7 31 9.0 -56.8 310 31 333.3 333.3 292.6 333.4 0.03 15 200 11380 -53.7 -62.7 32 9.0 -53.9 305 29 347.7 347.7 296.2 347.9 0.04 16 150 13240 -51.1 -63.1 23 12.0 -51.5 335 21 382.0 382.0 302.6 382.3 0.05 17 100 15870 -53.5 -67.5 17 14.0 -54.0 340 7 424.4 424.4 308.2 424.6 0.04 18 70 18170 -52.9 -67.9 15 15.0 -53.7 275 5 471.2 471.2 312.8 471.6 0.06 19 60 19161 -52.1 -67.1 15 15.0 -53.1 252 7 494.2 494.3 314.5 494.7 0.08 20 50 20330 -54.5 -69.5 14 15.0 -55.4 225 9 515.0 515.1 316.0 515.5 0.07 21 50 20330 -54.9 -69.9 14 15.0 -55.8 225 9 514.1 514.1 315.9 514.5 0.06 22 46 20861 -56.3 -71.3 14 15.0 -57.1 221 9 523.1 523.1 316.5 523.5 0.06 23 33 22987 -52.9 -68.9 13 16.0 -54.5 205 11 584.3 584.3 319.9 585.1 0.11 24 30 23600 -54.3 -70.3 12 16.0 -55.8 200 11 596.6 596.6 320.5 597.3 0.10 25 25 24773 -54.5 -70.5 12 16.0 -56.2 202 17 628.0 628.0 321.9 628.9 0.11 26 20 26220 -50.5 -67.5 12 17.0 -53.4 205 25 681.6 681.7 323.9 683.4 0.22 27 19 26555 -49.9 -67.9 10 18.0 -53.2 693.5 693.6 324.3 695.4 0.22 28 15 28092 -52.3 -71.3 8 19.0 -55.5 734.1 734.1 325.5 735.6 0.17 29 13 29023 -50.1 -71.1 7 21.0 -54.4 772.4 772.4 326.6 774.3 0.20 30 12 29542 -52.9 -73.9 6 21.0 -56.6 780.3 780.4 326.8 781.7 0.14 31 10 30728 -49.3 -73.3 4 24.0 -54.8 835.5 835.6 328.1 837.5 0.19 TRP 221 10745 -56.7 -65.7 31 9.0 -56.8 310 31 333.3 333.3 292.6 333.4 0.03 WND 375 7273 -40.7 -48.2 45 7.4 -41.1 330 62 307.7 307.7 284.6 308.1 0.13 Sounding variables and indices 1000-500 mb thick: 5208.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.33 inches Sfc-500 mean rel hum: 78.25 % Est. max temperature: 5.03 C = 41.06 F Sfc-Lift cond lev (LCL): 1001.78 mb = 47.93 m = 157.26 ft T: -3.10 C 700-500 lapse rate: 4.90 C/km ThetaE index: 0.51 C Layer 850.0- 700.0 mb Conv cond level (CCL): 862.14 mb = 1229.04 m = 4032.22 ft Mean mixing ratio: 2.64 g/kg Conv temperature: 4.76 C = 40.57 F Cap Strength: 7.87 C Lifted Index: 13.63 C Risk: None Lifted Index @300 mb: 26.25 C Lifted Index @700 mb: 4.39 C Showalter Index: 10.75 C Risk: None Total Totals Index: 42.10 C Risk: None Vertical Totals Index: 22.60 C Cross Totals Index: 19.50 C K Index: 9.90 Risk: None Sweat Index: 110.00 Risk: None Energy Index: 2.77 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 19.16 J/kg Max Up Vert Vel: 6.19 m/s Conv Inhibition (B-): 75483.94 J/kg Cap Strength: 13.62 C Lift Cond Lev (LCL): 930.67 mb = 628.83 m = 2063.06 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 352 at 27 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 1002 46 310 29 22.2 -18.6 | 248 20 18.6 7.6 1 1000 62 305 29 23.8 -16.6 | 244 22 20.1 9.6 2 925 677 325 50 28.7 -41.0 | 300 29 25.0 -14.7 3 850 1340 325 36 20.6 -29.5 | 281 17 17.0 -3.2 4 700 2819 315 27 19.1 -19.1 | 245 17 15.4 7.2 5 500 5270 325 38 21.8 -31.1 | 285 19 18.1 -4.9 6 400 6830 335 56 23.7 -50.8 | 321 32 20.0 -24.5 7 375 7273 330 62 31.0 -53.7 | 315 39 27.3 -27.4 8 300 8770 315 42 29.7 -29.7 | 278 26 26.0 -3.4 9 250 9960 315 36 25.5 -25.5 | 268 22 21.8 0.8 10 221 10745 310 31 23.7 -19.9 | 253 21 20.1 6.3 11 200 11380 305 29 23.8 -16.6 | 244 22 20.1 9.6 12 150 13240 335 21 8.9 -19.0 | 216 9 5.2 7.2 13 100 15870 340 7 2.4 -6.6 | 176 20 -1.3 19.7 14 70 18170 275 5 5.0 -0.4 | 183 26 1.3 25.8 15 50 20330 225 9 6.4 6.4 | 185 33 2.7 32.6 16 30 23600 200 11 3.8 10.3 | 180 37 0.1 36.6 17 20 26220 205 25 10.6 22.7 | 188 49 6.9 48.9 Wind Parameters Mean winds (0-6000m): 322.1 at 35.3 knts Storm direction: 352.1 at 26.5 knts Shear (0-3000m) pos: 2.8 neg: 2.6 tot: 5.4 10-3/s Storm rel Dir Shear (0-3000m): 1.2 deg Storm rel helicity (0-3000m) pos: 148.5 neg: -86.3 tot: 62.2 m^2/s^2 ave: 20.7 10^-3 m/s^2 rel: 0.12 Storm rel vorticity (0-3000m) horiz: 8.3 stream: 1.0 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 5.60 Bulk Shear: 3.42 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 ------------------------------------------------------------------------------- 500 314 37 269 23| 18.4 0.0 18.4|110.8 0.0 110.8 221.5 0.90| 19.9 18.0 1000 321 42 285 24| 8.3 0.0 8.3|144.1 -20.2 123.9 123.9 0.61| 16.0 9.8 1500 322 40 285 22| 5.5 2.6 8.1|144.1 -46.9 97.2 64.8 0.35| 13.3 4.7 2000 322 39 282 21| 4.1 2.8 6.9|144.1 -62.9 81.2 40.6 0.24| 10.9 2.6 2500 321 37 278 19| 3.3 3.0 6.3|144.1 -78.5 65.6 26.2 0.14| 9.4 1.3 3000 321 35 274 19| 2.8 2.6 5.4|148.5 -86.3 62.2 20.7 0.12| 8.3 1.0 4000 320 34 270 18| 2.7 2.0 4.7|170.9 -86.3 84.6 21.1 0.20| 6.9 1.4 5000 321 34 271 18| 2.7 1.6 4.2|194.4 -86.3 108.1 21.6 0.27| 6.0 1.6 6000 322 35 275 18| 3.2 1.3 4.5|244.1 -86.3 157.8 26.3 0.35| 6.0 2.1 Wrote GIF file: /home/apache/climate/data/raob//U1946/skewt/U1946.skewt.20251018.00.gif