Hard Freeze A complete technical report
describing the procedures used to produce and analyze these
figures is available in .pdf format. (1.5Mb size)
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Map variable | Map level or type | Hours prior to start of event | |
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Temperature | 500 mb | 0 12 24 36 48 60 72 84 | |
700 mb | 0 12 24 36 48 60 72 84 | ||
850 mb | 0 12 24 36 48 60 72 | ||
standard deviation @ 700 | 96 | ||
standard deviation @ 850 | 0 12 | ||
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Height | 300 mb | 0 12 24 36 48 60 | |
500 mb | 0 12 24 36 48 60 72 | ||
700 mb | 0 12 24 36 48 60 72 | ||
850 mb | 0 12 24 36 | ||
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Relative Humidity | 300 mb | 0 12 24 36 48 60 | |
850 mb | 0 12 24 36 48 60 | ||
Specific Humidity | 300 mb | 0 | |
500 mb | 0 12 24 36 48 60 | ||
700 mb | 0 | ||
850 mb | 0 12 24 36 48 60 | ||
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Surface Wind | U (zonal) component | 0 12 24 36 48 | |
V (meridional) component | 0 12 24 36 48 60 72 84 | ||
U standard deviation | 0 | ||
V standard deviation | 0 12 | ||
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U Wind | 300 mb | 0 12 24 36 48 60 | |
500 mb | 0 12 24 36 48 60 | ||
700 mb | 0 12 24 36 48 60 | ||
850 mb | 0 12 24 36 48 60 | ||
standard deviation @ 500 | 0 12 24 36 | ||
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V Wind | 300 mb | 0 12 24 36 48 60 72 84 | |
500 mb | 0 12 24 36 48 60 72 84 | ||
700 mb | 0 12 24 36 48 60 72 84 | ||
850 mb | 0 12 24 36 48 60 72 84 | ||
standard deviation @ 850 | 0 12 24 | ||
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Omega | 300 mb | 0 12 24 | |
500 mb | 0 12 24 | ||
700 mb | 0 12 24 36 | ||
850 mb | 0 12 24 36 | ||
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Tropopause | Pressure elevation | 0 12 24 36 48 60 72 84 96 | |
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