Jefferson County - East-West Gateway Coordinating Council

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HAZARD: Winter Weather
JEFFERSON COUNTY HAZARD PROFILE WORKSHEET
POTENTIAL MAGNITUDE (Percentage of jurisdiction that can be affected):
_ Catastrophic: More than 50%
_ Critical: 25% to 50%
X Limited: 10 to 25%
_ Negligible: Less than 10%
Jefferson County – Section 2
FREQUENCY OF OCCURRENCE:
_ Highly Likely: Near 100% probability in next year
X Likely: Between 10 and 100% probability in next year, or at least one chance in 10
years
_ Possible: Between 1 and 10% probability in next year or at least one chance in next
100 years.
_ Unlikely: Less than 1% probability in next 100 years
SEASONAL PATTERN: Late fall, winter and early spring months
AREAS LIKELY TO BE AFFECTED MOST (BY SECTOR):
Areas most likely to be affected are dependent upon weather patterns and track of storms.
PROBABLE DURATION: Two to three days
POTENTIAL SPEED OF ONSET
(Probable amount of warning time)
_ Minimal (or no) warning
_ 6 to 12 hours warning
_ 12 to 24 hours warning
X More than 24 hours warning
EXISTING WARNING SYSTEMS: National Weather Service
COMPLETE VULNERABILITY ANALYSIS: This analysis is based on regional severe winter
statistics; the analysis assumes that the county could represent 1% of those damages. In
the developed portion of the county, it was estimated that approximately 2,100 persons
and 500 buildings valued at $50 million dollars could be affected by this disaster. In the
undeveloped portion of the county, it was estimated that approximately 3 persons and
1building valued at $1million dollars could be affected by this disaster.