UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120400.upa.cvt Date: 0000Z 4 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 4 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 67 65 1 SFC 994 109 -33.1 -36.8 69 3.7 -33.3 65 1 240.5 240.5 240.3 240.9 0.16 2 983 187 -33.9 -38.9 61 5.0 -34.1 86 2 240.4 240.4 240.2 240.8 0.13 3 980 209 -33.1 -39.1 55 6.0 -33.4 92 3 241.4 241.5 241.1 241.8 0.13 4 974 252 -27.7 -33.7 57 6.0 -28.1 103 3 247.3 247.3 246.7 247.9 0.23 5 965 319 -26.1 -32.1 57 6.0 -26.6 121 4 249.6 249.6 248.9 250.3 0.27 6 954 402 -26.1 -31.1 63 5.0 -26.5 142 6 250.4 250.4 249.7 251.2 0.30 7 947 456 -23.9 -28.9 63 5.0 -24.4 156 6 253.2 253.2 252.3 254.2 0.37 8 925 627 -23.9 -28.4 66 4.5 -24.4 200 9 254.9 254.9 253.8 256.0 0.40 9 918 683 -23.7 -28.1 67 4.4 -24.2 200 9 255.6 255.7 254.4 256.8 0.41 10 897 853 -19.5 -23.6 70 4.1 -20.1 202 10 261.7 261.8 259.8 263.4 0.63 11 850 1255 -17.5 -20.9 75 3.4 -18.1 205 13 267.8 268.0 264.8 270.2 0.85 12 835 1388 -17.3 -20.5 76 3.2 -17.9 207 13 269.4 269.5 266.0 271.9 0.90 13 700 2683 -27.9 -31.0 75 3.1 -28.2 230 13 271.6 271.7 266.5 272.8 0.41 14 694 2745 -28.7 -31.8 75 3.1 -29.0 231 13 271.4 271.4 266.4 272.5 0.38 15 692 2765 -28.3 -31.4 75 3.1 -28.6 232 13 272.0 272.1 266.8 273.2 0.40 16 690 2786 -26.5 -29.6 75 3.1 -26.9 232 13 274.3 274.3 268.5 275.7 0.48 17 677 2924 -24.5 -27.8 74 3.3 -24.9 234 13 278.0 278.1 270.9 279.7 0.57 18 652 3197 -25.9 -29.2 74 3.3 -26.3 240 12 279.4 279.5 271.8 281.0 0.52 19 500 5070 -38.7 -47.7 38 9.0 -39.1 275 9 285.9 285.9 274.6 286.2 0.10 20 493 5166 -39.5 -48.5 38 9.0 -39.9 276 9 286.0 286.0 274.8 286.4 0.10 21 400 6560 -49.5 -55.5 49 6.0 -49.6 285 11 290.7 290.7 277.1 290.8 0.05 22 392 6693 -50.5 -56.5 49 6.0 -50.6 283 11 291.0 291.0 277.3 291.2 0.05 23 300 8400 -61.3 -67.3 45 6.0 -61.3 250 11 298.9 298.9 280.9 299.0 0.01 24 285 8716 -63.1 -69.1 44 6.0 -63.1 250 13 300.8 300.8 281.7 300.8 0.01 25 267 9116 -63.3 -68.3 51 5.0 -63.3 262 13 306.1 306.1 283.9 306.2 0.01 26 250 9520 -62.5 -68.5 44 6.0 -62.6 275 13 313.1 313.2 286.5 313.2 0.02 27 208 10657 -60.7 -65.7 52 5.0 -60.7 287 16 332.9 332.9 292.5 333.0 0.03 28 200 10900 -60.9 -65.9 52 5.0 -61.0 290 17 336.3 336.3 293.4 336.4 0.03 29 150 12690 -61.3 -67.3 45 6.0 -61.4 290 15 364.5 364.5 299.6 364.6 0.03 30 147 12815 -60.9 -66.9 45 6.0 -61.0 290 15 367.3 367.3 300.1 367.4 0.03 31 100 15190 -62.3 -70.3 33 8.0 -62.4 295 17 407.4 407.4 306.2 407.5 0.03 32 70 17370 -65.9 -73.9 32 8.0 -66.0 280 15 443.4 443.4 310.2 443.5 0.02 33 50 19400 -69.3 -78.3 26 9.0 -69.4 255 17 480.2 480.2 313.5 480.3 0.02 34 48 19643 -69.5 -78.5 26 9.0 -69.6 253 18 485.3 485.3 313.9 485.4 0.02 35 41 20588 -66.7 -76.7 23 10.0 -67.0 245 22 514.7 514.7 315.9 514.9 0.03 36 30 22470 -67.5 -77.5 23 10.0 -67.8 230 31 560.6 560.6 318.7 560.9 0.03 37 28 22886 -67.3 -77.3 23 10.0 -67.6 572.4 572.4 319.3 572.6 0.04 38 22 24360 -61.5 -72.5 22 11.0 -62.3 630.5 630.5 321.9 631.3 0.10 TRP 285 8716 -63.1 -69.1 44 6.0 -63.1 250 13 300.8 300.8 281.7 300.8 0.01 WND Sounding variables and indices 1000-500 mb thick: 5003.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.10 inches Sfc-500 mean rel hum: 65.77 % Est. max temperature: -5.17 C = 22.69 F Sfc-Lift cond lev (LCL): 933.01 mb = 564.14 m = 1850.83 ft T: -23.90 C 700-500 lapse rate: 4.52 C/km ThetaE index: 0.12 C Layer 983.0- 980.0 mb Conv cond level (CCL): 994.00 mb = 109.27 m = 358.48 ft Mean mixing ratio: 0.35 g/kg Conv temperature: -28.86 C = -19.96 F Cap Strength: 23.65 C Lifted Index: 27.08 C Risk: None Lifted Index @300 mb: 32.61 C Lifted Index @700 mb: 17.14 C Showalter Index: 13.02 C Risk: None Total Totals Index: 39.00 C Risk: None Vertical Totals Index: 21.20 C Cross Totals Index: 17.80 C K Index: -2.80 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 3.37 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 75.07 J/kg Max Up Vert Vel: 12.25 m/s Conv Inhibition (B-): 50146.30 J/kg Cap Strength: 27.02 C Lift Cond Lev (LCL): 881.84 mb = 980.43 m = 3216.60 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 268 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 ---------------------------------------------------------- 0 994 109 65 1 -0.9 -0.4 | 85 9 -8.9 -0.7 1 925 627 200 9 3.1 8.5 | 149 10 -5.0 8.1 2 850 1255 205 13 5.5 11.8 | 168 12 -2.5 11.5 3 700 2683 230 13 10.0 8.4 | 194 8 1.9 8.0 4 500 5070 275 9 9.0 -0.8 | 320 1 0.9 -1.1 5 400 6560 285 11 10.6 -2.8 | 321 4 2.6 -3.2 6 300 8400 250 11 10.3 3.8 | 214 4 2.3 3.4 7 285 8716 250 13 12.2 4.4 | 225 6 4.2 4.1 8 250 9520 275 13 13.0 -1.1 | 287 5 4.9 -1.5 9 200 10900 290 17 16.0 -5.8 | 308 10 7.9 -6.1 10 150 12690 290 15 14.1 -5.1 | 312 8 6.1 -5.5 11 100 15190 295 17 15.4 -7.2 | 316 11 7.4 -7.5 12 70 17370 280 15 14.8 -2.6 | 293 7 6.7 -2.9 13 50 19400 255 17 16.4 4.4 | 244 9 8.4 4.1 14 30 22470 230 31 23.7 19.9 | 219 25 15.7 19.6 Wind Parameters Mean winds (0-6000m): 237.7 at 10.7 knts Storm direction: 267.7 at 8.0 knts Shear (0-3000m) pos: 2.3 neg: 0.0 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 116.0 deg Storm rel helicity (0-3000m) pos: 59.9 neg: 0.0 tot: 59.9 m^2/s^2 ave: 20.0 10^-3 m/s^2 rel: 0.82 Storm rel vorticity (0-3000m) horiz: 4.4 stream: 3.7 10^-3/s Energy-Hel index: 0.03 Bulk Rich Number: 9.16 Bulk Shear: 8.20 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 ------------------------------------------------------------------------------- 500 195 5 123 8| 9.7 0.0 9.7| 34.7 0.0 34.7 69.4 0.86| 14.1 12.1 1000 200 8 142 9| 6.6 0.0 6.6| 43.8 0.0 43.8 43.8 0.86| 9.0 7.8 1500 203 9 152 9| 4.7 0.0 4.7| 49.5 0.0 49.5 33.0 0.86| 6.8 5.8 2000 207 10 159 9| 3.6 0.0 3.6| 53.7 0.0 53.7 26.8 0.85| 5.6 4.8 2500 211 11 165 9| 2.9 0.0 2.9| 57.5 0.0 57.5 23.0 0.85| 4.9 4.1 3000 215 11 170 9| 2.3 0.0 2.3| 59.9 0.0 59.9 20.0 0.82| 4.4 3.7 4000 223 11 177 8| 1.5 0.0 1.5| 62.7 0.0 62.7 15.7 0.78| 3.9 3.0 5000 230 11 183 7| 1.0 0.0 1.0| 64.1 0.0 64.1 12.8 0.78| 3.5 2.7 6000 238 11 191 5| 1.0 0.0 1.0| 64.1 -0.0 64.1 10.7 0.75| 3.0 2.3 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251204.00.gif