LOCAL WEATHER CONDITIONS AT Franklin, Venango Regional Airport Temperature 32 F / 0 C Wind Chill 26 F / -2 C Dew Point 24.8 F / -4 C Humidity 75% Wind Speed 5.8 Wind Direction SSW 200 Degrees Visibility 10 Miles Sky Conditions few at 8500 feet Current Weather Barometer .00 Inches Issued At 11/18/2025 09:56 $$ |
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ACUS01 KWNS 230536 SWODY1 SPC AC 230534 Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1134 PM CST Sat Nov 22 2025 Valid 231200Z - 241200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS MUCH OF WESTERN INTO NORTHWEST TEXAS... ...SUMMARY... Isolated hail is possible beginning this afternoon across parts of west to north-central Texas. ...Synopsis and Discussion... An upper low will pivot from AZ into CO today, with a midlevel speed max moving into the southern High Plains. Cooling aloft will persist across the region throughout the period, leading to steepening lapse rates aloft. At the surface, high pressure will maintain relatively cool surface temperatures over the Plains and MS Valley, though 50s F dewpoints will develop northward into western TX, and near 60 F dewpoints into central TX by 12Z Monday. As the upper trough emerges into the plains, large-scale ascent will move out of NM and into TX and western OK. While the surface air mass will be cool most areas, elevated instability should be substantial due to a southerly low-level jet with strong theta-e advection. Forecast soundings suggest perhaps 1000 J/kg MUCAPE will be possible, along with favorable effective shear over 40 kt. As such, elevated convection should strengthen from eastern NM into western TX, with the greatest severe hail potential over TX where instability will be strongest. Isolated large hail seems likely after about 18Z. Otherwise, there is a conditional threat of an isolated, surface-based supercell over far western TX in the Pecos/Fort Stockton area, where a narrow zone of SBCAPE may develop due to stronger heating. However, it is uncertain if any storms will form along the weak boundary. ..Jewell/Halbert.. 11/23/2025 $$ |