UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120812.upa.cvt Date: 1200Z 8 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:1200Z 8 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 1009 110 -33.7 -37.3 70 3.6 -33.8 180 1 238.8 238.9 238.7 239.3 0.15 1 1002 159 -32.5 -36.8 65 4.3 -32.7 199 3 240.5 240.5 240.3 241.0 0.16 2 1000 173 -32.7 -37.0 65 4.3 -32.9 205 3 240.4 240.5 240.2 240.9 0.16 3 976 344 -32.9 -37.1 66 4.2 -33.1 224 4 241.9 241.9 241.6 242.4 0.16 4 970 388 -29.7 -33.9 67 4.2 -30.0 228 5 245.6 245.6 245.2 246.2 0.22 5 957 484 -28.7 -32.9 67 4.2 -29.0 239 5 247.5 247.6 247.0 248.2 0.25 6 951 530 -26.5 -30.4 70 3.9 -26.8 244 6 250.2 250.3 249.6 251.1 0.32 7 925 731 -24.3 -27.6 74 3.3 -24.6 265 7 254.5 254.5 253.5 255.6 0.43 8 911 842 -23.3 -26.2 77 2.9 -23.6 274 7 256.6 256.7 255.4 258.0 0.49 9 850 1347 -25.1 -28.4 74 3.3 -25.4 315 7 259.9 259.9 257.9 261.1 0.43 10 700 2742 -29.9 -33.3 72 3.4 -30.2 300 15 269.4 269.4 264.9 270.4 0.33 11 651 3256 -32.1 -35.5 72 3.4 -32.4 299 14 272.5 272.6 267.0 273.4 0.29 12 500 5070 -44.5 -48.4 65 3.9 -44.6 295 11 278.8 278.8 270.6 279.1 0.09 13 426 6124 -51.5 -55.2 64 3.7 -51.6 299 5 282.9 282.9 272.9 283.1 0.05 14 400 6530 -53.3 -57.3 62 4.0 -53.4 300 3 285.7 285.7 274.5 285.9 0.04 15 301 8320 -62.9 -66.8 59 3.9 -62.9 100 7 296.4 296.4 279.7 296.5 0.02 16 300 8340 -62.9 -66.8 59 3.9 -62.9 100 7 296.7 296.7 279.9 296.7 0.02 17 265 9107 -60.1 -64.0 60 3.9 -60.2 158 7 311.5 311.5 285.9 311.6 0.03 18 250 9470 -60.3 -64.2 60 3.9 -60.3 185 7 316.4 316.4 287.6 316.5 0.03 19 207 10661 -57.1 -61.2 60 4.1 -57.2 185 9 339.0 339.0 294.1 339.2 0.05 20 200 10880 -57.3 -61.6 58 4.3 -57.4 185 9 342.0 342.0 294.8 342.2 0.05 21 179 11584 -55.1 -59.6 57 4.5 -55.2 185 9 356.6 356.7 298.1 357.0 0.07 22 150 12710 -56.1 -62.1 47 6.0 -56.3 185 9 373.4 373.4 301.2 373.7 0.06 23 100 15290 -55.7 -64.7 32 9.0 -56.1 220 21 420.1 420.1 307.7 420.4 0.06 24 97 15484 -55.7 -64.7 32 9.0 -56.1 220 22 423.8 423.8 308.2 424.1 0.07 25 70 17540 -59.3 -69.3 26 10.0 -59.6 220 35 457.5 457.5 311.5 457.8 0.05 26 50 19650 -59.7 -71.7 20 12.0 -60.2 215 40 502.8 502.8 315.2 503.1 0.05 27 40 21034 -62.1 -74.1 19 12.0 -62.6 213 50 529.9 529.9 316.9 530.2 0.04 28 36 21688 -59.5 -72.5 17 13.0 -60.2 212 55 552.8 552.9 318.3 553.2 0.06 29 30 22820 -62.3 -75.3 16 13.0 -62.9 210 64 574.8 574.8 319.4 575.1 0.05 30 28 23244 -63.3 -76.3 16 13.0 -63.8 211 67 583.5 583.5 319.9 583.8 0.04 31 26 23703 -59.5 -73.5 15 14.0 -60.4 212 69 606.8 606.8 320.9 607.3 0.07 32 24 24201 -61.9 -75.9 14 14.0 -62.7 213 72 613.8 613.9 321.2 614.2 0.05 33 20 25340 -57.3 -72.3 13 15.0 -58.8 215 79 660.8 660.8 323.1 661.7 0.11 34 18 26011 -54.3 -69.3 14 15.0 -56.5 690.5 690.5 324.1 692.1 0.19 35 14 27609 -57.7 -73.5 12 15.8 -59.7 210 97 730.4 730.5 325.4 731.6 0.13 36 13 28076 -58.7 -74.7 11 16.0 -60.6 742.6 742.6 325.7 743.6 0.12 37 12 28581 -56.7 -72.7 12 16.0 -59.2 766.9 766.9 326.4 768.5 0.17 TRP 301 8320 -62.9 -66.8 59 3.9 -62.9 100 7 296.4 296.4 279.7 296.5 0.02 WND 14 27609 -57.7 -73.5 12 15.8 -59.7 210 97 730.4 730.5 325.4 731.6 0.13 Sounding variables and indices 1000-500 mb thick: 4897.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 70.86 % Est. max temperature: -13.13 C = 8.37 F Sfc-Lift cond lev (LCL): 948.61 mb = 547.94 m = 1797.67 ft T: -26.30 C 700-500 lapse rate: 6.27 C/km ThetaE index: 0.07 C Layer 1000.0- 976.0 mb Conv cond level (CCL): 1002.00 mb = 158.93 m = 521.43 ft Mean mixing ratio: 0.29 g/kg Conv temperature: -30.50 C = -22.89 F Cap Strength: 21.32 C Lifted Index: 24.80 C Risk: None Lifted Index @300 mb: 34.11 C Lifted Index @700 mb: 18.95 C Showalter Index: 14.60 C Risk: None Total Totals Index: 35.50 C Risk: None Vertical Totals Index: 19.40 C Cross Totals Index: 16.10 C K Index: -12.40 Risk: None Sweat Index: 25.00 Risk: None Energy Index: 3.83 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 77.83 J/kg Max Up Vert Vel: 12.48 m/s Conv Inhibition (B-): 64792.80 J/kg Cap Strength: 24.81 C Lift Cond Lev (LCL): 910.10 mb = 849.45 m = 2786.88 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 327 at 8 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 1009 110 180 1 0.0 1.0 | 151 9 -4.2 7.4 1 1000 173 205 3 1.3 2.7 | 162 10 -2.9 9.2 2 925 731 265 7 7.0 0.6 | 202 8 2.8 7.0 3 850 1347 315 7 4.9 -4.9 | 207 2 0.8 1.5 4 700 2742 300 15 13.0 -7.5 | 277 9 8.8 -1.1 5 500 5070 295 11 10.0 -4.6 | 253 6 5.8 1.8 6 400 6530 300 3 2.6 -1.5 | 162 5 -1.6 4.9 7 301 8320 100 7 -6.9 1.2 | 125 13 -11.1 7.7 8 300 8340 100 7 -6.9 1.2 | 125 13 -11.1 7.7 9 250 9470 185 7 0.6 7.0 | 165 14 -3.6 13.4 10 200 10880 185 9 0.8 9.0 | 168 16 -3.4 15.4 11 150 12710 185 9 0.8 9.0 | 168 16 -3.4 15.4 12 100 15290 220 21 13.5 16.1 | 202 24 9.3 22.5 13 70 17540 220 35 22.5 26.8 | 209 38 18.3 33.2 14 50 19650 215 40 22.9 32.8 | 206 43 18.8 39.2 15 30 22820 210 64 32.0 55.4 | 204 68 27.8 61.9 16 20 25340 215 79 45.3 64.7 | 210 82 41.1 71.1 Wind Parameters Mean winds (0-6000m): 296.9 at 10.2 knts Storm direction: 326.9 at 7.7 knts Shear (0-3000m) pos: 1.6 neg: 1.1 tot: 2.7 10-3/s Storm rel Dir Shear (0-3000m): 123.3 deg Storm rel helicity (0-3000m) pos: 22.8 neg: -1.1 tot: 21.7 m^2/s^2 ave: 7.2 10^-3 m/s^2 rel: 0.48 Storm rel vorticity (0-3000m) horiz: 4.0 stream: 2.0 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 7.14 Bulk Shear: 10.90 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 ------------------------------------------------------------------------------- 500 235 4 175 9| 6.1 0.0 6.1| 15.8 0.0 15.8 31.6 0.93| 7.2 6.7 1000 263 6 190 7| 3.9 0.0 3.9| 20.6 0.0 20.6 20.6 0.73| 6.4 4.7 1500 282 6 199 5| 3.2 0.0 3.2| 21.3 -0.1 21.2 14.2 0.64| 5.5 3.5 2000 292 7 212 4| 2.4 0.8 3.1| 22.4 -0.1 22.3 11.2 0.61| 4.9 3.0 2500 296 8 229 4| 1.9 1.3 3.1| 22.8 -0.1 22.8 9.1 0.53| 4.6 2.4 3000 297 9 241 5| 1.6 1.1 2.7| 22.8 -1.1 21.7 7.2 0.48| 4.0 2.0 4000 297 10 251 5| 1.2 0.6 1.8| 22.8 -3.7 19.1 4.8 0.40| 3.3 1.3 5000 297 11 254 6| 0.9 0.4 1.3| 22.8 -6.2 16.6 3.3 0.32| 2.8 0.9 6000 297 10 250 5| 0.4 0.3 0.7| 22.8 -11.6 11.2 1.9 0.12| 2.8 0.3 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251208.12.gif