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DR-557 · Wyoming

SEVERE STORMS, FLOODING & MUDSLIDES

Flood · Declared May 29, 1978

Recorded incident start May 29, 1978. Recorded incident end May 29, 1978. Declaration request May 26, 1978. Recorded closeout May 21, 1983.

Open the official FEMA disaster page · Declaration data

County designations and filing dates

County programs listed by FEMA
CountyPrograms listedIndividual Assistance filing date
Big Horn County, WyomingIndividual Assistance · Public AssistanceUnavailable
Campbell County, WyomingIndividual Assistance · Public AssistanceUnavailable
Converse County, WyomingIndividual Assistance · Public AssistanceUnavailable
Crook County, WyomingIndividual Assistance · Public AssistanceUnavailable
Hot Springs County, WyomingIndividual Assistance · Public AssistanceUnavailable
Johnson County, WyomingIndividual Assistance · Public AssistanceUnavailable
Natrona County, WyomingIndividual Assistance · Public AssistanceUnavailable
Niobrara County, WyomingIndividual Assistance · Public AssistanceUnavailable
Park County, WyomingIndividual Assistance · Public AssistanceUnavailable
Sheridan County, WyomingIndividual Assistance · Public AssistanceUnavailable
Washakie County, WyomingIndividual Assistance · Public AssistanceUnavailable
Weston County, WyomingIndividual Assistance · Public AssistanceUnavailable

How to read these FEMA records

America.co analysis of Federal Emergency Management Agency OpenFEMA data, retrieved November 10, 2026.

FEMA declarations · Owner assistance data · Renter assistance data · Funded project data · Grant award activity