Weather Alerts For Petersburg, KY

There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHEAST OKLAHOMA AND ARKLATEX SUMMARY Scattered severe thunderstorms are expected today from parts of the southern Plains into the ArkLaTex and lower Mississippi Valley. Large hail, damaging winds, and a few tornadoes will be possible. The greatest threat for supercells with very large hail (2+ inches) should focus across parts of southeast Oklahoma to the ArkLaTex region. Oklahoma/North Texas to ArkLaTex/Lower Mississippi Valley A persistent band of non-severe thunderstorms this morning, and its related outflow, continue to settle southward across southeast Oklahoma, south-central/southeast Arkansas into northwest Mississippi. The southeastern-most portion of the convective line may re-intensify across the ArkLaMiss today as the boundary layer warms, with some potential for a secondary round of upscale-growing storms into tonight across generally the same ArkLaMiss/Lower Mississippi Valley region. This includes damaging winds and some tornado potential, primarily QLCS-related, especially into this evening/tonight via a somewhat stronger wind field. The western periphery of the ongoing complex and its outflow should continue to decelerate, stall, and modify through the afternoon, setting the stage for a semi-corridor of heightened severe potential via this modifying outflow in conjunction with the surface triple point to this west, with intensifying storm development anticipated toward the 4pm-6pm/21z-23z time frame across southeast Oklahoma and nearby ArkLaTex. This will be in the presence of ample buoyancy and steep mid-level lapse rates. Wind profiles will further support intense supercells capable of large to very large hail, along with a tornado risk, accentuated by backed low-level winds near the outflow boundary and east of the triple point. With time, some clustering may occur with an increased damaging wind threat as convection spreads east-southeastward. Additionally, locally intense storms may also focus farther west across southern Oklahoma/Red River vicinity along/north of the southward-sagging front where relatively rich low-level moisture will persist in the presence of strong deep-layer shear. Texas Dryline - North/Central TX to Hill Country/Rio Grande A highly conditional scenario exists in vicinity of the south/southwestward-extending dryline late this afternoon/early evening, with a concerning (mostly hail) severe potential should storms develop. Short-term guidance varies on the aggressiveness of eastward-mixing/dryline through peak heating, although the 12z Fort Worth sounding sampled respectable warm-sector moisture content this morning (upper quartile climo; 14.4 g/kg mean mixing ratio). Regardless, a concerning high degree of instability (3000+ J/kg MLCAPE) will exist near/east of the dryline late this afternoon. Short-term models remain rather sparse on explicit indications of near-dryline convective initiation. However, sufficient dry line convergence and post-dryline heating/mixing could plausibly lead to isolated but intense thunderstorm development in the presence of negligible capping/boundary-layer inhibition. And while mid-level capping will be more prevalent, especially with southward extent, upstream 12z soundings from Midland/El Paso (both around -14C 500mb) suggest that some additional mid-level cooling is probable. Notably stronger mid/high-level winds were also observed in these RAOBs with 50+ kt winds and 100+ kt winds at 500mb/250mb, respectively. Several sub-regional zones of potential isolated deep convective development are at least plausible, including in closer proximity to the surface triple point across North Texas/Metroplex general vicinity, extending into parts of central Texas where low-level mixing may be less impactful, and lastly in the immediate vicinity of the Rio Grande, potentially influenced by possible storm development across the border. If/where storms do develop late this afternoon/early evening, very large hail could occur along with localized severe-caliber wind gusts. Great Lakes/Ohio Valley A weak/convectively influenced mid-level shortwave trough will move northeastward across the Midwest and Upper Great Lakes today. Convection ahead of a cold front has generally weakened this morning across the mid Mississippi Valley, but multi-layer cloud cover remains prevalent. Modest-caliber low-level moisture will continue to advect north-northeastward through the day ahead of the front, supporting weak instability with filtered daytime heating. Loosely organized clusters/cells that develop/intensify this afternoon may pose an isolated threat for damaging winds as they move northeastward this afternoon and evening. The residual clouds and a weakening low-level wind field should curb the overall magnitude of the severe risk, hence maintenance of MRGL/Category 1 risk. Western Nebraska A couple of stronger storms may develop late this afternoon/early evening near a southeastward-moving front, further influenced by a mid-level impulse embedded within the base of the large-scale trough centered over the Canadian Prairies. In the presence of a strong deep-layer wind field, modest-caliber CAPE atop a well-mixed boundary layer could potentially yield an isolated severe gust/hail.

Pollen Index: 9.7 Pollen Level: high Predominant Pollen: Oak, Poplar/Aspen/Cottonwood and Maple. The amount of pollen in the air for Saturday will be increasing and extend even further into the extremely high range. This rise is a result of strong winds and decreasing humidity. Tomorrow's increase could spell trouble for allergy sufferers.