Natural Disaster Risk — ZIP Code 37148

Natural Hazard Profile: ZIP 37148, Tennessee

ZIP 37148 in Portland sits in the interior eastern United States. Its humid subtropical climate produces hot summers, mild winters, and transitional weather patterns, and notably tornado risk in both spring and fall. These conditions define the natural disaster environment for households across this ZIP code.

According to FEMA's National Risk Index, ZIP 37148 carries an overall risk score of 7.1/10, placing it in the high category. Tornado activity is the top natural hazard risk, with the region lying in a corridor where warm, moist air frequently clashes with dry, cool air masses to spawn severe supercell thunderstorms. The area also faces notable exposure to wind and cold wave.

Within Tennessee, ZIP 37148's risk is, slightly above the 5.8/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Tennessee identifies tornado as the foremost hazard, followed by wind and cold wave. These rankings reflect the relative frequency and severity of each hazard type in the local environment.

ZIP 37148's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.