UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120212.upa.cvt Date: 1200Z 2 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 2 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 ------------------------------------------------------------------------------- SFC 1017 111 -37.5 -41.3 68 3.8 -37.6 190 1 234.5 234.5 234.4 234.8 0.10 1 1011 152 -35.3 -39.7 64 4.4 -35.5 199 3 237.1 237.1 237.0 237.4 0.12 2 1000 228 -34.3 -38.8 64 4.5 -34.5 215 7 238.9 238.9 238.7 239.2 0.13 3 992 284 -33.5 -38.1 63 4.6 -33.7 218 8 240.2 240.2 240.0 240.6 0.14 4 984 342 -28.5 -33.2 64 4.7 -28.8 221 9 245.8 245.8 245.4 246.4 0.24 5 978 386 -26.3 -30.9 65 4.6 -26.6 224 10 248.4 248.5 247.9 249.2 0.30 6 954 566 -23.7 -27.7 70 4.0 -24.1 233 13 252.8 252.9 252.1 254.0 0.41 7 925 792 -22.9 -27.0 69 4.1 -23.4 245 17 255.9 256.0 254.8 257.1 0.45 8 878 1175 -21.7 -27.7 58 6.0 -22.4 245 17 261.0 261.1 258.9 262.3 0.45 9 850 1413 -22.3 -30.3 48 8.0 -23.2 245 17 262.8 262.8 260.1 263.8 0.36 10 760 2234 -23.1 -38.1 24 15.0 -24.4 248 23 270.5 270.5 265.4 271.0 0.19 11 714 2688 -26.3 -43.3 19 17.0 -27.5 249 26 271.8 271.8 266.1 272.2 0.12 12 700 2831 -26.7 -44.7 17 18.0 -27.9 250 27 272.9 272.9 266.8 273.2 0.10 13 636 3518 -30.1 -51.1 11 21.0 -31.2 259 24 276.6 276.6 269.2 276.8 0.05 14 568 4317 -33.5 -53.5 12 20.0 -34.3 269 20 281.7 281.7 272.2 281.9 0.05 15 500 5200 -39.5 -55.5 17 16.0 -40.0 280 15 284.9 284.9 274.0 285.0 0.04 16 400 6690 -49.9 -57.9 38 8.0 -50.1 315 15 290.1 290.1 276.8 290.3 0.04 17 364 7302 -54.7 -62.7 37 8.0 -54.8 322 17 291.7 291.7 277.5 291.7 0.02 18 300 8520 -62.7 -69.7 38 7.0 -62.7 335 21 297.0 297.0 280.0 297.0 0.01 19 290 8726 -64.5 -71.5 38 7.0 -64.6 336 20 297.3 297.3 280.1 297.3 0.01 20 263 9316 -66.9 -73.9 37 7.0 -67.0 340 19 302.2 302.2 282.3 302.2 0.01 21 250 9620 -66.3 -73.3 37 7.0 -66.3 330 17 307.5 307.5 284.4 307.5 0.01 22 214 10572 -62.7 -69.7 38 7.0 -62.8 320 11 327.1 327.1 290.9 327.1 0.01 23 200 10990 -63.1 -69.1 44 6.0 -63.1 315 9 332.8 332.8 292.5 332.9 0.02 24 150 12760 -62.5 -69.5 38 7.0 -62.6 320 3 362.4 362.4 299.2 362.5 0.02 25 100 15250 -63.7 -71.7 33 8.0 -63.8 70 7 404.7 404.7 305.9 404.8 0.02 26 71 17334 -66.7 -75.7 27 9.0 -66.8 204 7 439.9 439.9 309.8 440.0 0.02 27 70 17420 -66.7 -75.7 27 9.0 -66.8 210 7 441.7 441.7 310.1 441.8 0.02 28 50 19450 -66.5 -76.5 23 10.0 -66.7 135 9 486.8 486.8 314.0 486.9 0.02 29 40 20798 -68.3 -78.3 22 10.0 -68.5 152 17 514.3 514.3 315.9 514.5 0.02 30 34 21781 -65.5 -76.5 20 11.0 -65.8 165 23 546.2 546.2 317.9 546.4 0.03 31 30 22540 -67.3 -78.3 20 11.0 -67.6 175 27 561.2 561.2 318.7 561.4 0.03 32 29 22744 -68.1 -79.1 19 11.0 -68.4 564.4 564.4 318.9 564.6 0.03 TRP 263 9316 -66.9 -73.9 37 7.0 -67.0 340 19 302.2 302.2 282.3 302.2 0.01 WND Sounding variables and indices 1000-500 mb thick: 4972.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.05 inches Sfc-500 mean rel hum: 30.29 % Est. max temperature: -10.20 C = 13.64 F Sfc-Lift cond lev (LCL): 952.05 mb = 581.19 m = 1906.75 ft T: -23.65 C 700-500 lapse rate: 5.40 C/km ThetaE index: 0.00 C Layer 1017.0- -0.0 mb Conv cond level (CCL): 1011.00 mb = 151.80 m = 498.01 ft Mean mixing ratio: 0.31 g/kg Conv temperature: -29.59 C = -21.26 F Cap Strength: 27.71 C Lifted Index: 29.27 C Risk: None Lifted Index @300 mb: 33.84 C Lifted Index @700 mb: 21.56 C Showalter Index: 17.37 C Risk: None Total Totals Index: 26.40 C Risk: None Vertical Totals Index: 17.20 C Cross Totals Index: 9.20 C K Index: -31.10 Risk: None Sweat Index: 145.70 Risk: None Energy Index: 4.52 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 88.99 J/kg Max Up Vert Vel: 13.34 m/s Conv Inhibition (B-): 49103.59 J/kg Cap Strength: 29.17 C Lift Cond Lev (LCL): 914.62 mb = 874.84 m = 2870.18 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 288 at 14 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 1017 111 190 1 0.2 1.0 | 112 14 -13.2 5.2 1 1000 228 215 7 4.0 5.7 | 137 14 -9.4 10.0 2 925 792 245 17 15.4 7.2 | 190 12 2.0 11.4 3 850 1413 245 17 15.4 7.2 | 190 12 2.0 11.4 4 700 2831 250 27 25.4 9.2 | 222 18 12.0 13.5 5 500 5200 280 15 14.8 -2.6 | 220 2 1.4 1.7 6 400 6690 315 15 10.6 -10.6 | 24 7 -2.8 -6.3 7 300 8520 335 21 8.9 -19.0 | 17 15 -4.5 -14.8 8 263 9316 340 19 6.5 -17.9 | 27 15 -6.9 -13.6 9 250 9620 330 17 8.5 -14.7 | 25 12 -4.9 -10.5 10 200 10990 315 9 6.4 -6.4 | 73 7 -7.0 -2.1 11 150 12760 320 3 1.9 -2.3 | 100 12 -11.5 2.0 12 100 15250 70 7 -6.6 -2.4 | 95 20 -20.0 1.9 13 70 17420 210 7 3.5 6.1 | 136 14 -9.9 10.3 14 50 19450 135 9 -6.4 6.4 | 118 22 -19.7 10.6 15 30 22540 175 27 -2.4 26.9 | 153 35 -15.7 31.2 Wind Parameters Mean winds (0-6000m): 257.7 at 18.7 knts Storm direction: 287.7 at 14.0 knts Shear (0-3000m) pos: 4.3 neg: 0.0 tot: 4.3 10-3/s Storm rel Dir Shear (0-3000m): 112.5 deg Storm rel helicity (0-3000m) pos: 94.5 neg: 0.0 tot: 94.5 m^2/s^2 ave: 31.5 10^-3 m/s^2 rel: 0.87 Storm rel vorticity (0-3000m) horiz: 5.2 stream: 4.5 10^-3/s Energy-Hel index: 0.04 Bulk Rich Number: 4.65 Bulk Shear: 19.16 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 ------------------------------------------------------------------------------- 500 227 9 146 12| 13.5 0.0 13.5| 48.6 0.0 48.6 97.1 0.99| 14.4 14.2 1000 239 13 166 11| 8.5 0.0 8.5| 61.4 0.0 61.4 61.4 0.99| 9.3 9.2 1500 242 14 175 11| 6.1 0.0 6.1| 65.3 0.0 65.3 43.5 0.98| 6.7 6.6 2000 243 16 183 11| 5.5 0.0 5.5| 75.5 0.0 75.5 37.7 0.95| 5.9 5.7 2500 245 17 191 12| 5.1 0.0 5.1| 86.2 0.0 86.2 34.5 0.92| 5.5 5.1 3000 246 19 197 12| 4.3 0.0 4.3| 94.5 0.0 94.5 31.5 0.87| 5.2 4.5 4000 250 20 205 12| 2.6 0.0 2.6|100.3 0.0 100.3 25.1 0.75| 4.8 3.6 5000 253 19 208 11| 1.6 0.0 1.6|100.7 -0.5 100.2 20.0 0.63| 4.5 2.9 6000 258 19 211 10| 1.3 0.0 1.3|102.2 -0.6 101.7 16.9 0.63| 4.3 2.7 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251202.12.gif