UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120512.upa.cvt Date: 1200Z 5 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 5 DEC 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 ------------------------------------------------------------------------------- 0 1000 22 SFC 988 108 -29.7 -33.1 72 3.4 -29.9 275 1 244.3 244.3 244.0 244.9 0.24 2 960 313 -29.7 -34.5 63 4.8 -30.0 308 5 246.3 246.3 245.8 246.9 0.21 3 953 366 -25.9 -30.7 64 4.8 -26.3 316 6 250.7 250.7 250.0 251.5 0.31 4 927 567 -23.9 -27.8 70 3.9 -24.3 348 11 254.7 254.8 253.7 255.9 0.42 5 925 583 -23.5 -27.3 71 3.8 -23.9 350 11 255.3 255.3 254.2 256.5 0.44 6 919 631 -21.5 -24.9 74 3.4 -21.9 349 11 257.8 257.9 256.5 259.3 0.55 7 904 752 -20.3 -23.3 77 3.0 -20.7 347 10 260.3 260.4 258.7 262.1 0.65 8 850 1208 -19.9 -23.0 76 3.1 -20.4 340 9 265.3 265.4 262.7 267.3 0.71 9 834 1349 -19.7 -22.9 76 3.2 -20.2 337 10 267.0 267.1 263.9 269.0 0.73 10 752 2108 -26.3 -29.3 76 3.0 -26.6 321 13 267.8 267.9 264.0 269.1 0.45 11 750 2127 -24.1 -27.3 75 3.2 -24.5 321 13 270.4 270.5 266.0 272.0 0.54 12 746 2166 -23.7 -26.9 75 3.2 -24.1 320 13 271.3 271.4 266.6 272.9 0.57 13 700 2631 -24.5 -32.5 47 8.0 -25.4 310 15 275.4 275.4 269.0 276.4 0.36 14 694 2694 -24.7 -32.7 47 8.0 -25.6 306 15 275.8 275.9 269.2 276.9 0.35 15 500 5000 -40.1 -48.1 42 8.0 -40.4 170 1 284.1 284.2 273.7 284.5 0.10 16 430 6014 -47.3 -53.3 50 6.0 -47.4 197 2 287.5 287.5 275.5 287.7 0.06 17 400 6490 -49.7 -55.7 49 6.0 -49.8 210 3 290.4 290.4 276.9 290.6 0.05 18 331 7714 -55.9 -61.9 47 6.0 -56.0 180 3 298.0 298.1 280.5 298.2 0.03 19 300 8340 -56.5 -63.5 41 7.0 -56.6 205 3 305.7 305.7 283.7 305.8 0.02 20 281 8756 -56.9 -63.9 41 7.0 -57.0 183 3 310.9 310.9 285.7 311.0 0.03 21 250 9500 -55.5 -63.5 36 8.0 -55.6 145 3 323.6 323.6 289.9 323.7 0.03 22 200 10920 -54.1 -64.1 28 10.0 -54.3 205 9 347.1 347.1 296.0 347.2 0.03 23 178 11667 -54.5 -64.5 28 10.0 -54.7 207 9 358.2 358.2 298.4 358.4 0.04 24 150 12760 -55.7 -67.7 21 12.0 -56.0 210 9 374.1 374.1 301.3 374.2 0.03 25 100 15300 -60.7 -74.7 14 14.0 -60.9 205 23 410.4 410.5 306.6 410.5 0.02 26 78 16838 -64.3 -79.3 11 15.0 -64.5 212 31 433.2 433.2 309.2 433.3 0.01 27 71 17413 -65.1 -80.1 11 15.0 -65.3 215 35 443.3 443.3 310.2 443.4 0.01 28 70 17500 -64.9 -79.9 11 15.0 -65.1 215 35 445.5 445.5 310.4 445.6 0.01 29 63 18145 -63.1 -79.1 10 16.0 -63.4 217 35 463.1 463.1 312.1 463.2 0.01 30 50 19560 -65.1 -81.1 9 16.0 -65.4 220 35 490.1 490.1 314.2 490.1 0.01 31 49 19683 -65.3 -81.3 9 16.0 -65.6 220 36 492.4 492.4 314.4 492.5 0.01 32 36 21572 -62.9 -79.9 8 17.0 -63.4 214 51 544.0 544.0 317.8 544.2 0.02 33 32 22295 -64.7 -80.7 9 16.0 -65.1 211 57 557.9 557.9 318.5 558.0 0.02 34 30 22690 -63.5 -80.5 8 17.0 -64.1 210 60 571.5 571.5 319.2 571.7 0.02 35 28 23113 -61.1 -78.1 9 17.0 -61.9 211 64 589.6 589.6 320.2 589.8 0.03 36 20 25190 -61.1 -79.1 8 18.0 -62.2 215 83 649.1 649.2 322.7 649.4 0.04 37 14 27393 -63.5 -81.5 7 18.0 -64.6 710.7 710.7 324.8 711.0 0.04 TRP 331 7714 -55.9 -61.9 47 6.0 -56.0 180 3 298.0 298.1 280.5 298.2 0.03 WND Sounding variables and indices 1000-500 mb thick: 4978.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.09 inches Sfc-500 mean rel hum: 58.30 % Est. max temperature: -7.53 C = 18.44 F Sfc-Lift cond lev (LCL): 932.72 mb = 522.44 m = 1714.02 ft T: -24.34 C 700-500 lapse rate: 6.59 C/km ThetaE index: 0.00 C Layer 988.0- -0.0 mb Conv cond level (CCL): 988.00 mb = 108.15 m = 354.82 ft Mean mixing ratio: 0.41 g/kg Conv temperature: -27.24 C = -17.02 F Cap Strength: 19.75 C Lifted Index: 24.60 C Risk: None Lifted Index @300 mb: 36.53 C Lifted Index @700 mb: 19.40 C Showalter Index: 13.96 C Risk: None Total Totals Index: 37.30 C Risk: None Vertical Totals Index: 20.20 C Cross Totals Index: 17.10 C K Index: -10.80 Risk: None Sweat Index: 19.00 Risk: None Energy Index: 3.64 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 76.02 J/kg Max Up Vert Vel: 12.33 m/s Conv Inhibition (B-): 61841.11 J/kg Cap Strength: 24.61 C Lift Cond Lev (LCL): 890.44 mb = 863.97 m = 2834.52 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 348 at 6 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 ---------------------------------------------------------- 0 988 108 275 1 1.0 -0.1 | 178 6 -0.2 5.6 1 925 583 350 11 1.9 -10.8 | 352 5 0.7 -5.1 2 850 1208 340 9 3.1 -8.5 | 326 3 1.9 -2.8 3 700 2631 310 15 11.5 -9.6 | 291 11 10.3 -3.9 4 500 5000 170 1 -0.2 1.0 | 169 7 -1.4 6.7 5 400 6490 210 3 1.5 2.6 | 182 8 0.3 8.3 6 331 7714 180 3 0.0 3.0 | 172 9 -1.2 8.7 7 300 8340 205 3 1.3 2.7 | 181 8 0.1 8.4 8 250 9500 145 3 -1.7 2.5 | 160 9 -2.9 8.2 9 200 10920 205 9 3.8 8.2 | 191 14 2.6 13.9 10 150 12760 210 9 4.5 7.8 | 194 14 3.3 13.5 11 100 15300 205 23 9.7 20.8 | 198 28 8.5 26.6 12 70 17500 215 35 20.1 28.7 | 209 39 18.9 34.4 13 50 19560 220 35 22.5 26.8 | 213 39 21.3 32.5 14 30 22690 210 60 30.0 52.0 | 207 64 28.8 57.7 15 20 25190 215 83 47.6 68.0 | 212 87 46.4 73.7 Wind Parameters Mean winds (0-6000m): 318.2 at 7.8 knts Storm direction: 348.2 at 5.8 knts Shear (0-3000m) pos: 1.8 neg: 2.2 tot: 4.1 10-3/s Storm rel Dir Shear (0-3000m): 75.3 deg Storm rel helicity (0-3000m) pos: 12.6 neg: -31.2 tot: -18.6 m^2/s^2 ave: -6.2 10^-3 m/s^2 rel: -0.03 Storm rel vorticity (0-3000m) horiz: 5.4 stream: -0.1 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 43.79 Bulk Shear: 1.74 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 ------------------------------------------------------------------------------- 500 346 6 312 0| 11.0 0.0 11.0| 12.6 0.0 12.6 25.2 0.94| 13.5 12.7 1000 346 8 340 2| 5.5 1.1 6.6| 12.6 -1.7 10.9 10.9 0.71| 7.9 5.6 1500 342 9 331 3| 3.7 1.2 4.8| 12.6 -3.1 9.6 6.4 0.54| 6.1 3.3 2000 337 9 320 4| 2.8 1.6 4.3| 12.6 -5.5 7.1 3.6 0.39| 5.4 2.1 2500 330 10 309 5| 2.2 1.9 4.1| 12.6 -9.8 2.8 1.1 0.27| 5.0 1.3 3000 324 11 300 6| 1.8 2.2 4.1| 12.6 -31.2 -18.6 -6.2 -0.03| 5.4 -0.1 4000 316 10 287 6| 1.4 2.0 3.4| 12.6 -64.5 -51.9 -13.0 -0.28| 5.5 -1.5 5000 320 9 285 5| 1.1 1.2 2.3| 12.7 -76.0 -63.3 -12.7 -0.34| 5.1 -1.7 6000 318 8 271 4| 0.8 1.0 1.9| 15.0 -76.0 -61.0 -10.2 -0.30| 4.4 -1.3 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251205.12.gif