UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025123100.upa.cvt Date: 0000Z 31 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 31 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 1020 113 -41.5 -45.5 65 4.0 -41.6 60 1 230.3 230.4 230.3 230.5 0.06 1 1017 133 -41.3 -47.3 52 6.0 -41.4 68 2 230.7 230.7 230.6 230.9 0.05 2 1015 147 -39.7 -45.7 53 6.0 -39.8 74 2 232.5 232.5 232.3 232.6 0.06 3 1001 244 -30.3 -36.3 56 6.0 -30.6 112 5 242.8 242.8 242.5 243.2 0.17 4 1000 251 -29.9 -35.9 56 6.0 -30.2 115 5 243.2 243.3 242.9 243.7 0.18 5 986 352 -26.7 -32.7 57 6.0 -27.1 129 6 247.4 247.5 246.9 248.1 0.25 6 971 463 -26.3 -31.3 63 5.0 -26.7 143 7 248.9 249.0 248.4 249.7 0.29 7 940 700 -22.3 -27.2 64 4.9 -22.8 175 10 255.3 255.4 254.2 256.5 0.44 8 925 818 -22.3 -26.9 66 4.6 -22.8 190 11 256.5 256.6 255.3 257.8 0.46 9 872 1251 -22.7 -26.8 69 4.1 -23.2 204 10 260.5 260.5 258.6 261.8 0.49 10 850 1439 -20.7 -24.5 72 3.8 -21.2 210 9 264.5 264.6 261.9 266.2 0.62 11 834 1580 -20.3 -24.1 72 3.8 -20.8 214 9 266.3 266.4 263.3 268.2 0.65 12 733 2524 -26.1 -29.6 72 3.5 -26.5 244 6 270.0 270.1 265.6 271.3 0.45 13 713 2724 -26.5 -30.1 72 3.6 -26.9 251 5 271.7 271.8 266.7 273.0 0.44 14 700 2857 -26.5 -30.3 70 3.8 -26.9 255 5 273.1 273.2 267.7 274.5 0.44 15 613 3806 -30.3 -37.3 50 7.0 -30.9 255 5 279.3 279.4 271.2 280.1 0.25 16 511 5072 -39.7 -50.7 30 11.0 -40.1 255 5 282.9 282.9 272.9 283.1 0.07 17 500 5220 -40.5 -51.5 30 11.0 -40.9 255 5 283.7 283.7 273.4 283.9 0.07 18 448 5957 -46.7 -56.7 31 10.0 -46.9 260 7 284.9 284.9 274.0 285.0 0.04 19 400 6700 -51.5 -59.5 38 8.0 -51.6 265 9 288.1 288.1 275.7 288.2 0.03 20 348 7597 -55.9 -63.9 36 8.0 -56.0 289 17 293.8 293.8 278.6 293.9 0.02 21 300 8540 -57.7 -65.7 35 8.0 -57.8 315 25 304.0 304.0 283.0 304.1 0.02 22 294 8668 -58.3 -66.3 35 8.0 -58.4 320 29 304.9 304.9 283.4 305.0 0.02 23 268 9252 -58.9 -67.9 30 9.0 -59.0 314 26 312.2 312.2 286.1 312.3 0.02 24 250 9690 -58.3 -67.3 31 9.0 -58.4 310 23 319.4 319.4 288.6 319.5 0.02 25 218 10555 -56.9 -65.9 31 9.0 -57.1 307 18 334.3 334.3 292.9 334.4 0.02 26 200 11100 -57.3 -67.3 27 10.0 -57.5 305 15 342.0 342.0 294.8 342.1 0.02 27 150 12920 -54.7 -66.7 21 12.0 -55.0 305 15 375.8 375.8 301.6 376.0 0.03 28 149 12963 -54.5 -66.5 21 12.0 -54.8 305 15 376.9 376.9 301.8 377.1 0.03 29 132 13735 -57.7 -69.7 20 12.0 -57.9 300 16 384.5 384.5 303.0 384.6 0.02 30 101 15427 -57.7 -71.7 15 14.0 -58.0 290 17 415.1 415.1 307.2 415.2 0.02 31 100 15490 -56.9 -70.9 15 14.0 -57.3 290 17 417.8 417.8 307.4 417.9 0.03 32 89 16236 -53.1 -68.1 15 15.0 -53.7 285 19 439.5 439.5 309.8 439.8 0.04 33 83 16684 -55.7 -70.7 14 15.0 -56.2 282 20 443.1 443.1 310.2 443.3 0.03 34 72 17598 -52.5 -69.5 11 17.0 -53.4 276 23 468.3 468.3 312.5 468.5 0.05 35 70 17780 -53.7 -70.7 11 17.0 -54.5 275 23 469.5 469.5 312.6 469.7 0.04 36 53 19565 -53.3 -72.3 8 19.0 -54.4 254 31 509.3 509.3 315.6 509.6 0.04 37 50 19940 -52.5 -71.5 8 19.0 -53.7 250 33 519.8 519.8 316.3 520.1 0.05 38 44 20776 -49.1 -69.1 8 20.0 -51.0 249 34 547.4 547.4 318.0 548.0 0.08 39 39 21568 -50.9 -71.9 7 21.0 -52.7 248 34 562.1 562.1 318.8 562.5 0.06 40 30 23290 -48.7 -71.7 5 23.0 -51.5 245 36 611.9 611.9 321.2 612.5 0.08 41 27 23985 -47.5 -71.5 5 24.0 -50.8 241 37 634.0 634.0 322.1 634.7 0.09 42 26 24233 -49.5 -73.5 4 24.0 -52.4 240 37 635.2 635.2 322.2 635.7 0.07 43 20 25960 -47.5 -73.5 3 26.0 -51.7 230 38 690.8 690.8 324.1 691.6 0.09 44 19 26299 -47.1 -73.1 4 26.0 -51.5 702.2 702.3 324.6 703.1 0.10 45 14 28304 -50.9 -74.9 4 24.0 -54.9 753.4 753.5 326.1 754.4 0.11 TRP 294 8668 -58.3 -66.3 35 8.0 -58.4 320 29 304.9 304.9 283.4 305.0 0.02 WND Sounding variables and indices 1000-500 mb thick: 4969.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.08 inches Sfc-500 mean rel hum: 58.38 % Est. max temperature: -10.86 C = 12.46 F Sfc-Lift cond lev (LCL): 950.51 mb = 618.61 m = 2029.54 ft T: -23.67 C 700-500 lapse rate: 5.92 C/km ThetaE index: 0.00 C Layer 1020.0- 0.0 mb Conv cond level (CCL): 1017.00 mb = 133.31 m = 437.37 ft Mean mixing ratio: 0.30 g/kg Conv temperature: -30.28 C = -22.51 F Cap Strength: 27.78 C Lifted Index: 28.27 C Risk: None Lifted Index @300 mb: 38.84 C Lifted Index @700 mb: 21.79 C Showalter Index: 14.44 C Risk: None Total Totals Index: 35.80 C Risk: None Vertical Totals Index: 19.80 C Cross Totals Index: 16.00 C K Index: -8.50 Risk: None Sweat Index: 23.00 Risk: None Energy Index: 3.74 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 82.81 J/kg Max Up Vert Vel: 12.87 m/s Conv Inhibition (B-): 75951.60 J/kg Cap Strength: 28.04 C Lift Cond Lev (LCL): 905.71 mb = 972.60 m = 3190.91 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 261 at 5 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 1020 113 60 1 -0.9 -0.5 | 77 6 -5.6 -1.3 1 1000 251 115 5 -4.5 2.1 | 98 9 -9.3 1.4 2 925 818 190 11 1.9 10.8 | 164 10 -2.8 10.1 3 850 1439 210 9 4.5 7.8 | 178 7 -0.2 7.0 4 700 2857 255 5 4.8 1.3 | 191 1 0.1 0.5 5 500 5220 255 5 4.8 1.3 | 191 1 0.1 0.5 6 400 6700 265 9 9.0 0.8 | 270 4 4.2 0.0 7 300 8540 315 25 17.7 -17.7 | 325 23 13.0 -18.4 8 294 8668 320 29 18.6 -22.2 | 329 27 13.9 -23.0 9 250 9690 310 23 17.6 -14.8 | 320 20 12.9 -15.5 10 200 11100 305 15 12.3 -8.6 | 321 12 7.6 -9.4 11 150 12920 305 15 12.3 -8.6 | 321 12 7.6 -9.4 12 100 15490 290 17 16.0 -5.8 | 300 13 11.3 -6.6 13 70 17780 275 23 22.9 -2.0 | 279 18 18.2 -2.8 14 50 19940 250 33 31.0 11.3 | 248 28 26.3 10.5 15 30 23290 245 36 32.6 15.2 | 243 31 27.9 14.5 16 20 25960 230 38 29.1 24.4 | 226 34 24.4 23.7 Wind Parameters Mean winds (0-6000m): 230.9 at 6.4 knts Storm direction: 260.9 at 4.8 knts Shear (0-3000m) pos: 1.0 neg: 0.0 tot: 1.0 10-3/s Storm rel Dir Shear (0-3000m): 113.7 deg Storm rel helicity (0-3000m) pos: 45.6 neg: -0.0 tot: 45.6 m^2/s^2 ave: 15.2 10^-3 m/s^2 rel: 0.67 Storm rel vorticity (0-3000m) horiz: 4.8 stream: 3.2 10^-3/s Energy-Hel index: 0.02 Bulk Rich Number: 8.34 Bulk Shear: 9.93 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 ------------------------------------------------------------------------------- 500 140 6 114 9| 9.4 0.0 9.4| 24.1 0.0 24.1 48.2 0.82| 12.1 10.0 1000 177 8 144 9| 5.6 0.0 5.6| 41.3 0.0 41.3 41.3 0.85| 9.7 8.2 1500 188 8 155 8| 3.2 0.0 3.2| 44.1 0.0 44.1 29.4 0.79| 7.5 6.0 2000 197 8 162 8| 2.1 0.0 2.1| 45.3 0.0 45.3 22.7 0.75| 6.3 4.7 2500 203 8 166 7| 1.4 0.0 1.4| 45.6 0.0 45.6 18.2 0.70| 5.5 3.8 3000 208 7 168 6| 1.0 0.0 1.0| 45.6 -0.0 45.6 15.2 0.67| 4.8 3.2 4000 217 7 173 5| 0.8 0.0 0.8| 45.6 -0.0 45.6 11.4 0.67| 3.6 2.4 5000 225 6 177 4| 0.6 0.0 0.6| 45.6 -0.0 45.6 9.1 0.67| 2.9 1.9 6000 231 6 184 3| 0.7 0.0 0.7| 46.0 -0.0 46.0 7.7 0.65| 2.6 1.7 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251231.00.gif