Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Each six-digit Specific Area Message Encoding (SAME) Location Code “PSSCCC” uniquely identifies a specific geographic area. The "P" allows for subdividing or partitioning the area defined by the "CCC" into smaller parts in the case of a very large or uniquely shaped area, or because of widely varying climate, population, or geographic features. The area defined by the “CCC” can be divided into 2 to 9 partitions. Area partitions may be of unequal size and when combined will cover the entire "CCC" area without overlap.

More Information

Partial County Alerting (PCA) Overview
PCA Technical Discussion
PCA Benefits for Residents and Broadcasters
PCA Example: Flash Flood Warning
NWS Offices Using PCA
Description of the SAME Location Code PSSCCC
(#2 under Description of Columns)

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Illustration of P = 1-9

Number and descriptive partition labeling

In actual use, partitions may be of unequal size and fewer than 9 partitions may used.

Northwest

North

Northeast

West

Central

East

Southwest

South

Southeast

Illustration of P = Zero

Defined as "All or unspecified portions"