textproduct: Memphis

KEY MESSAGES

Issued at 559 PM CDT Mon Oct 5 2026

- Elevated fire danger will persist through the work week due to low relative humidity. Exercise caution and adhere to local burn bans.

- Temperatures will warm into the mid-to-upper 80s by midweek, with unsettled weather potentially returning late next weekend.

DISCUSSION

(This evening through next Sunday) Issued at 140 PM CDT Mon Oct 5 2026

Behind an overnight frontal passage, dry air and seasonable temperatures will encompass the region through late week. Surface analysis indicates broad high pressure over the interior central US, with the primary cold front pushing through the Appalachians and a secondary boundary near the Gulf Coast. A tight pressure gradient between the surface high and the departing front will maintain moderate northeasterly winds across the Mid-South this afternoon, with gusts reaching up to 25 mph. Diurnal heating combined with post-frontal dry air advection will boost highs into the 80s while driving afternoon relative humidity (RH) down significantly. Critical RH values below 30 percent are anticipated across north Mississippi this afternoon, coinciding with 20-foot winds of 10 to 15 mph. While 10-hour fuel moisture currently remains above the 10 percent critical threshold, fine fuel drying will accelerate today under the influence of gusty winds, low RH, and strong solar radiation.

Benign weather will persist through late week as the Mid-South remains in a quasi-zonal upper-level flow pattern, with surface high pressure dominating the regional weather. Temperatures will continue to rise a degree or two each day as lower-level warm air advection takes hold, bringing the entire region well into the mid-to-upper 80s by late week. With low surface dewpoints maintaining light atmospheric moisture, clear skies will support strong radiational cooling overnight-leading to cooler-than- normal morning low temperatures-and efficient solar heating during the day, yielding warmer-than-normal high temperatures. There is medium confidence in elevated fire weather danger developing by late week as 10-hour fuel moisture decreases further alongside low afternoon Relative Humidity and breezy 20- foot winds.

The weekend outlook hinges on the evolution and trajectory of a surface low moving across the Gulf of Mexico. Model guidance displays noticeable spread: the GFS remains more aggressive, developing a tropical depression that tracks northward into the Lower Mississippi Valley, whereas the ECMWF depicts a weaker, open wave progressing across the region. Regardless of exact low intensity, an influx of moisture and unsettled weather is expected to return by the weekend, effectively suppressing fire weather concerns.

AVIATION

(00Z TAFS) Issued at 559 PM CDT Mon Oct 5 2026

VFR conditions continue for the next 30 hours. A stalled frontal boundary near the Gulf Coast will try to adjust the winds to S/SE at TUP and MKL by the end of the period. The NAMNest is depicting a few isolated SHRA near TUP with peak heating, which could result in Cu near MEM, but the column appears way too dry with weak southerly surface flow and zonal flow aloft.

DNM

FIRE WEATHER

Issued at 140 PM CDT Mon Oct 5 2026

Critical relative humidity (RH) values, less than 30 percent, are expected across north Mississippi this afternoon along with persistent 20-foot winds of 10 to 15 mph and occasional higher gusts. The limiting factor for a more elevated fire danger setup is 10-hour fuels remaining above the 10 percent threshold. However, fuels will quickly dry this afternoon due to gusty winds, low RH, and strong solar heating.

Continued drying of fuels will occur each day through late week as temperatures warm into the 80s. There is a medium chance of elevated fire weather danger by late week as relative humidity values dip below 30 percent and high temperatures approach 90 degrees.

MEG WATCHES/WARNINGS/ADVISORIES

AR...None. MO...None. MS...None. TN...None.