UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120900.upa.cvt Date: 0000Z 9 DEC 25 Searching for U4641... Searching the city database file for: U4641 ... Date:0000Z 9 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 1010 113 -36.5 -40.0 70 3.5 -36.6 235 1 236.0 236.0 235.9 236.3 0.12 1 1004 154 -37.1 -41.8 62 4.7 -37.2 253 2 235.8 235.8 235.6 236.0 0.10 2 1000 182 -35.7 -40.3 63 4.6 -35.9 265 3 237.4 237.5 237.3 237.8 0.11 3 984 295 -32.5 -37.4 62 4.9 -32.7 274 4 241.8 241.8 241.5 242.2 0.16 4 965 433 -30.5 -35.0 65 4.5 -30.7 286 5 245.1 245.2 244.7 245.7 0.20 5 950 545 -26.3 -30.7 66 4.4 -26.6 295 6 250.5 250.5 249.8 251.4 0.31 6 925 739 -24.1 -28.1 69 4.0 -24.5 310 7 254.7 254.7 253.6 255.8 0.41 7 920 779 -23.7 -27.6 70 3.9 -24.1 310 7 255.5 255.5 254.4 256.7 0.43 8 868 1203 -24.5 -28.2 71 3.7 -24.9 310 12 258.9 259.0 257.2 260.1 0.43 9 850 1355 -25.3 -29.0 71 3.7 -25.7 310 13 259.6 259.7 257.7 260.8 0.41 10 700 2747 -31.7 -35.6 68 3.9 -32.0 320 13 267.4 267.4 263.3 268.2 0.26 11 674 3014 -33.1 -37.2 67 4.1 -33.4 318 13 268.7 268.8 264.2 269.4 0.23 12 631 3476 -34.3 -38.4 66 4.1 -34.6 315 12 272.5 272.5 266.8 273.1 0.22 13 500 5070 -44.5 -48.3 66 3.8 -44.6 305 9 278.8 278.8 270.6 279.1 0.10 14 436 5973 -51.1 -54.8 65 3.7 -51.2 16 8 281.6 281.6 272.2 281.7 0.05 15 400 6530 -53.3 -57.2 62 3.9 -53.4 60 7 285.7 285.7 274.5 285.9 0.04 16 307 8188 -62.7 -66.5 60 3.8 -62.7 100 9 295.0 295.0 279.1 295.1 0.02 17 300 8330 -62.3 -66.1 60 3.8 -62.3 105 9 297.5 297.5 280.3 297.6 0.02 18 263 9144 -61.9 -65.6 61 3.7 -61.9 98 5 309.5 309.5 285.2 309.6 0.02 19 250 9460 -59.7 -63.7 59 4.0 -59.7 95 3 317.3 317.3 287.9 317.4 0.03 20 219 10294 -57.1 -61.1 60 4.0 -57.2 148 4 333.6 333.6 292.7 333.8 0.05 21 200 10870 -56.7 -60.8 60 4.1 -56.8 185 5 343.0 343.0 295.1 343.2 0.05 22 150 12700 -55.5 -60.3 55 4.8 -55.6 225 9 374.5 374.5 301.4 374.8 0.08 23 100 15280 -55.7 -62.7 41 7.0 -56.0 205 23 420.1 420.1 307.8 420.5 0.08 24 94 15674 -55.3 -63.3 36 8.0 -55.6 206 25 428.4 428.4 308.7 428.8 0.08 25 70 17540 -58.3 -67.3 31 9.0 -58.6 210 33 459.7 459.7 311.8 460.0 0.06 26 50 19630 -61.9 -72.9 22 11.0 -62.3 215 44 497.6 497.6 314.8 497.9 0.04 27 45 20279 -63.1 -74.1 21 11.0 -63.4 213 46 509.9 509.9 315.7 510.2 0.04 28 35 21834 -60.3 -72.3 19 12.0 -60.9 208 52 555.2 555.2 318.4 555.7 0.06 29 30 22790 -62.3 -74.3 19 12.0 -62.9 205 56 574.8 574.8 319.4 575.2 0.05 30 24 24167 -63.7 -75.7 18 12.0 -64.3 208 69 608.6 608.6 321.0 609.0 0.05 31 21 25001 -57.3 -70.3 18 13.0 -58.7 209 76 651.6 651.7 322.8 652.8 0.14 32 20 25310 -57.3 -71.3 15 14.0 -58.8 210 79 660.8 660.8 323.1 661.8 0.13 33 18 25975 -58.1 -72.1 15 14.0 -59.6 211 83 678.5 678.5 323.7 679.5 0.13 34 17 26338 -54.1 -68.1 16 14.0 -56.3 211 86 702.5 702.6 324.6 704.5 0.24 35 12 28555 -57.7 -73.7 11 16.0 -59.9 214 100 763.3 763.4 326.3 764.7 0.15 36 10 29720 -52.2 -69.7 10 17.5 -56.3 215 108 824.8 825.0 327.9 828.1 0.32 37 9.4 30122 -50.3 -68.3 10 18.0 -55.2 846.6 846.9 328.4 851.0 0.41 TRP 307 8188 -62.7 -66.5 60 3.8 -62.7 100 9 295.0 295.0 279.1 295.1 0.02 WND 10 29720 -52.2 -69.7 10 17.5 -56.3 215 108 824.8 825.0 327.9 828.1 0.32 Sounding variables and indices 1000-500 mb thick: 4888.00 m Freezing level: Surface below freezing Wetbulb zero: Below ground Precipitable water: 0.07 inches Sfc-500 mean rel hum: 67.61 % Est. max temperature: -13.17 C = 8.29 F Sfc-Lift cond lev (LCL): 950.67 mb = 540.24 m = 1772.42 ft T: -26.49 C 700-500 lapse rate: 5.51 C/km ThetaE index: 0.25 C Layer 1004.0-1000.0 mb Conv cond level (CCL): 1004.00 mb = 154.25 m = 506.08 ft Mean mixing ratio: 0.26 g/kg Conv temperature: -31.51 C = -24.72 F Cap Strength: 21.75 C Lifted Index: 25.44 C Risk: None Lifted Index @300 mb: 35.24 C Lifted Index @700 mb: 17.85 C Showalter Index: 14.84 C Risk: None Total Totals Index: 34.70 C Risk: None Vertical Totals Index: 19.20 C Cross Totals Index: 15.50 C K Index: -13.70 Risk: None Sweat Index: 35.00 Risk: None Energy Index: 3.87 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 85.63 J/kg Max Up Vert Vel: 13.09 m/s Conv Inhibition (B-): 70057.98 J/kg Cap Strength: 25.27 C Lift Cond Lev (LCL): 906.13 mb = 889.30 m = 2917.63 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 346 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 1010 113 235 1 0.8 0.6 | 173 8 -1.0 8.0 1 1000 182 265 3 3.0 0.3 | 188 8 1.1 7.7 2 925 739 310 7 5.4 -4.5 | 230 5 3.5 2.9 3 850 1355 310 13 10.0 -8.4 | 276 8 8.1 -0.9 4 700 2747 320 13 8.4 -10.0 | 291 7 6.5 -2.5 5 500 5070 305 9 7.4 -5.2 | 248 6 5.5 2.3 6 400 6530 60 7 -6.1 -3.5 | 116 9 -7.9 3.9 7 307 8188 100 9 -8.9 1.6 | 130 14 -10.7 9.0 8 300 8330 105 9 -8.7 2.3 | 133 14 -10.5 9.8 9 250 9460 95 3 -3.0 0.3 | 148 9 -4.8 7.7 10 200 10870 185 5 0.4 5.0 | 174 12 -1.4 12.4 11 150 12700 225 9 6.4 6.4 | 198 15 4.5 13.8 12 100 15280 205 23 9.7 20.8 | 196 29 7.9 28.3 13 70 17540 210 33 16.5 28.6 | 202 39 14.7 36.0 14 50 19630 215 44 25.2 36.0 | 208 49 23.4 43.5 15 30 22790 205 56 23.7 50.8 | 201 62 21.8 58.2 16 20 25310 210 79 39.5 68.4 | 206 85 37.7 75.9 17 10 29720 215 108 61.9 88.5 | 212 113 60.1 95.9 Wind Parameters Mean winds (0-6000m): 316.1 at 10.2 knts Storm direction: 346.1 at 7.7 knts Shear (0-3000m) pos: 2.2 neg: 0.1 tot: 2.3 10-3/s Storm rel Dir Shear (0-3000m): 111.9 deg Storm rel helicity (0-3000m) pos: 23.2 neg: -1.3 tot: 21.9 m^2/s^2 ave: 7.3 10^-3 m/s^2 rel: 0.75 Storm rel vorticity (0-3000m) horiz: 2.9 stream: 2.2 10^-3/s Energy-Hel index: 0.01 Bulk Rich Number: 13.60 Bulk Shear: 6.30 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 4 199 7| 5.9 0.0 5.9| 10.8 0.0 10.8 21.6 0.89| 6.5 5.8 1000 303 6 219 5| 5.4 0.0 5.4| 16.6 0.0 16.6 16.6 0.87| 5.9 5.1 1500 307 8 242 5| 4.4 0.0 4.4| 20.2 0.0 20.2 13.5 0.83| 4.8 4.0 2000 309 9 255 6| 3.3 0.0 3.3| 21.6 0.0 21.6 10.8 0.83| 3.8 3.2 2500 311 10 263 6| 2.7 0.0 2.7| 23.0 0.0 23.0 9.2 0.84| 3.2 2.7 3000 313 11 268 6| 2.2 0.1 2.3| 23.2 -1.3 21.9 7.3 0.75| 2.9 2.2 4000 313 11 270 6| 1.7 0.4 2.0| 23.2 -4.9 18.4 4.6 0.56| 2.4 1.3 5000 313 11 268 6| 1.2 0.4 1.6| 23.4 -7.8 15.6 3.1 0.41| 2.2 0.9 6000 316 10 269 5| 1.0 0.3 1.3| 27.0 -7.8 19.2 3.2 0.45| 2.8 1.3 Wrote GIF file: /home/apache/climate/data/raob//U4641/skewt/U4641.skewt.20251209.00.gif