UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120712.upa.cvt Date: 1200Z 7 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 7 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 1004 110 -31.3 -34.6 73 3.3 -31.5 240 1 241.6 241.6 241.4 242.1 0.20 1 1000 138 -31.1 -35.4 66 4.3 -31.3 245 1 242.1 242.1 241.8 242.6 0.19 2 987 231 -31.1 -35.4 66 4.3 -31.3 254 2 243.0 243.0 242.7 243.5 0.19 3 983 260 -29.7 -34.1 66 4.4 -30.0 257 3 244.6 244.7 244.3 245.2 0.22 4 925 693 -29.9 -34.0 67 4.1 -30.2 300 9 248.7 248.8 248.0 249.4 0.23 5 920 732 -29.7 -33.8 67 4.1 -30.0 302 9 249.3 249.4 248.6 250.0 0.24 6 887 996 -22.9 -26.6 72 3.7 -23.3 312 9 259.0 259.1 257.3 260.4 0.49 7 850 1308 -23.1 -26.3 75 3.2 -23.5 325 9 261.9 262.0 259.8 263.4 0.52 8 716 2554 -26.9 -30.2 74 3.3 -27.2 321 16 270.9 271.0 266.2 272.2 0.43 9 700 2717 -28.1 -31.6 72 3.5 -28.5 320 17 271.4 271.4 266.4 272.5 0.39 10 500 5060 -42.9 -46.6 67 3.7 -43.0 325 13 280.7 280.8 271.8 281.1 0.12 11 424 6152 -50.5 -54.1 66 3.6 -50.6 351 12 284.6 284.6 273.9 284.8 0.06 12 400 6530 -51.5 -54.9 67 3.4 -51.6 360 11 288.1 288.1 275.7 288.3 0.06 13 399 6546 -51.5 -54.9 67 3.4 -51.6 0 11 288.3 288.3 275.9 288.5 0.06 14 335 7661 -58.9 -62.5 63 3.6 -58.9 14 7 292.9 292.9 278.2 293.0 0.03 15 310 8146 -60.3 -63.8 63 3.5 -60.3 20 5 297.5 297.5 280.3 297.6 0.02 16 300 8350 -60.1 -63.7 63 3.6 -60.2 20 5 300.6 300.6 281.6 300.7 0.02 17 283 8713 -61.1 -64.6 63 3.5 -61.2 68 5 304.2 304.3 283.1 304.3 0.02 18 263 9171 -58.3 -62.0 62 3.7 -58.3 128 5 314.8 314.8 287.1 314.9 0.03 19 250 9490 -57.7 -61.5 62 3.8 -57.8 170 5 320.3 320.3 288.9 320.4 0.04 20 244 9644 -57.7 -61.5 62 3.8 -57.8 173 6 322.5 322.5 289.6 322.7 0.04 21 200 10910 -55.7 -59.9 59 4.2 -55.8 195 11 344.6 344.6 295.4 344.8 0.06 22 150 12740 -56.7 -62.7 47 6.0 -56.9 185 13 372.4 372.4 301.0 372.6 0.06 23 106 14940 -54.7 -63.7 32 9.0 -55.1 206 20 415.1 415.1 307.2 415.4 0.07 24 100 15310 -56.3 -65.3 31 9.0 -56.6 210 21 418.9 419.0 307.6 419.3 0.06 25 94 15703 -57.5 -67.5 27 10.0 -57.8 207 23 424.1 424.1 308.2 424.3 0.05 26 70 17560 -60.1 -71.1 22 11.0 -60.4 195 31 455.8 455.8 311.4 456.0 0.04 27 66 17926 -60.5 -72.5 19 12.0 -60.9 198 35 462.7 462.7 312.0 462.9 0.03 28 51 19536 -58.7 -71.7 17 13.0 -59.3 209 51 502.3 502.3 315.1 502.6 0.05 29 50 19660 -59.7 -72.7 17 13.0 -60.2 210 52 502.8 502.8 315.2 503.1 0.04 30 43 20595 -63.1 -76.1 16 13.0 -63.5 207 56 516.6 516.6 316.1 516.8 0.03 31 34 22047 -60.7 -74.7 14 14.0 -61.4 202 61 558.8 558.8 318.6 559.1 0.04 32 32 22422 -63.3 -77.3 13 14.0 -63.8 201 62 561.6 561.6 318.8 561.8 0.03 33 30 22820 -61.7 -75.7 14 14.0 -62.4 200 64 576.4 576.5 319.5 576.7 0.04 34 27 23473 -61.7 -76.7 12 15.0 -62.4 204 68 594.1 594.1 320.3 594.4 0.04 35 25 23946 -64.7 -78.7 13 14.0 -65.3 207 71 598.7 598.7 320.6 598.9 0.03 36 20 25320 -61.1 -77.1 10 16.0 -62.1 215 79 649.1 649.2 322.7 649.6 0.05 37 15 27124 -57.1 -74.1 10 17.0 -59.2 718.1 718.2 325.0 719.1 0.11 TRP 310 8146 -60.3 -63.8 63 3.5 -60.3 20 5 297.5 297.5 280.3 297.6 0.02 WND Sounding variables and indices 1000-500 mb thick: 4922.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.08 inches Sfc-500 mean rel hum: 70.59 % Est. max temperature: -11.23 C = 11.78 F Sfc-Lift cond lev (LCL): 949.20 mb = 508.99 m = 1669.88 ft T: -29.82 C 700-500 lapse rate: 6.32 C/km ThetaE index: 0.00 C Layer 1004.0-4584246774848121097682944.0 mb Conv cond level (CCL): 540.62 mb = 4516.03 m = 14816.20 ft Mean mixing ratio: 0.23 g/kg Conv temperature: 5.80 C = 42.44 F Cap Strength: 21.74 C Lifted Index: 27.33 C Risk: None Lifted Index @300 mb: 37.67 C Lifted Index @700 mb: 21.74 C Showalter Index: 14.27 C Risk: None Total Totals Index: 36.40 C Risk: None Vertical Totals Index: 19.80 C Cross Totals Index: 16.60 C K Index: -10.00 Risk: None Sweat Index: 31.00 Risk: None Energy Index: 3.76 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 27.92 J/kg Max Up Vert Vel: 7.47 m/s Conv Inhibition (B-): 67021.72 J/kg Cap Strength: 27.05 C Lift Cond Lev (LCL): 888.80 mb = 981.15 m = 3218.96 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 353 at 9 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 1004 110 240 1 0.9 0.5 | 178 10 -0.3 9.8 1 1000 138 245 1 0.9 0.4 | 179 10 -0.2 9.7 2 925 693 300 9 7.8 -4.5 | 234 8 6.7 4.8 3 850 1308 325 9 5.2 -7.4 | 245 4 4.0 1.9 4 700 2717 320 17 10.9 -13.0 | 291 10 9.8 -3.7 5 500 5060 325 13 7.5 -10.6 | 282 6 6.3 -1.4 6 400 6530 360 11 -0.0 -11.0 | 34 2 -1.1 -1.7 7 310 8146 20 5 -1.7 -4.7 | 148 5 -2.9 4.6 8 300 8350 20 5 -1.7 -4.7 | 148 5 -2.9 4.6 9 250 9490 170 5 -0.9 4.9 | 172 14 -2.0 14.2 10 200 10910 195 11 2.8 10.6 | 185 20 1.7 19.9 11 150 12740 185 13 1.1 13.0 | 180 22 -0.0 22.2 12 100 15310 210 21 10.5 18.2 | 199 29 9.4 27.5 13 70 17560 195 31 8.0 29.9 | 190 40 6.9 39.2 14 50 19660 210 52 26.0 45.0 | 205 60 24.9 54.3 15 30 22820 200 64 21.9 60.1 | 197 72 20.7 69.4 16 20 25320 215 79 45.3 64.7 | 211 86 44.2 74.0 Wind Parameters Mean winds (0-6000m): 323.0 at 12.5 knts Storm direction: 353.0 at 9.4 knts Shear (0-3000m) pos: 1.8 neg: 1.0 tot: 2.8 10-3/s Storm rel Dir Shear (0-3000m): 111.8 deg Storm rel helicity (0-3000m) pos: 33.4 neg: -0.3 tot: 33.1 m^2/s^2 ave: 11.0 10^-3 m/s^2 rel: 0.69 Storm rel vorticity (0-3000m) horiz: 3.8 stream: 2.6 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 2.37 Bulk Shear: 11.80 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 ------------------------------------------------------------------------------- 500 286 4 200 9| 7.4 0.0 7.4| 19.5 0.0 19.5 39.1 0.98| 8.1 7.9 1000 303 7 217 7| 4.5 0.0 4.5| 24.7 0.0 24.7 24.7 0.83| 6.3 5.2 1500 311 7 226 6| 3.7 0.0 3.7| 27.0 0.0 27.0 18.0 0.79| 5.2 4.1 2000 315 9 237 6| 2.7 0.7 3.5| 30.1 0.0 30.1 15.0 0.77| 4.6 3.6 2500 317 10 250 6| 2.2 1.2 3.4| 32.9 0.0 32.9 13.2 0.72| 4.3 3.1 3000 318 11 259 6| 1.8 1.0 2.8| 33.4 -0.3 33.1 11.0 0.69| 3.8 2.6 4000 319 12 269 7| 1.2 0.7 1.9| 33.4 -1.3 32.1 8.0 0.62| 3.1 1.9 5000 320 13 273 7| 0.8 0.6 1.4| 33.6 -2.5 31.2 6.2 0.55| 2.7 1.5 6000 323 12 276 6| 0.7 0.5 1.2| 37.2 -2.5 34.7 5.8 0.57| 2.7 1.5 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251207.12.gif