| Temperature at Paradise |
MAXIMUM TEMPERATURE (Tmax): 38.07°F
MINIMUM TEMPERATURE (Tmin): 31.68°F
AVERAGE TEMPERATURE (Tavg): 34.87°F
MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.635
Maximum Percentile on this day is based on 16 years of historic (1917-2017) records:
Forecasted temperatures from DarkSky
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DEBRIS FLOW HAZARD MODEL:
Click to zoom in
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Degree Days above 32°F
(DD32) |
TODAY'S DD32: 6
18-DAY CUMULATIVE DD32: 20
DD32 is calculated as: DD32 = TMAX - 32
18-day Cumulative DD32 is the sum of DD32 for the last 18 days.
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| Precipitation at Paradise |
DAY 1: 0.45 in
DAY 1-3 (P3): 1.67 in
DAY 4-15 (P15): 2.91 in
18-DAY TOTAL (P18): 4.58 in
PRECIP THRESHOLD A (PA) EXCEEDED: True
P3 > (-0.67 * P15 + 2.5)
PRECIP THRESHOLD B (PB) EXCEEDED: False
P3 > (-0.67 * P15 + 4.5)
Forecasted precipitation from DarkSky
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| Snow at Paradise |
DEPTH: 79 in
SWE DAY: 66
CALCULATED SNOW DENSITY: 381.15 kg/m3
CALCULATED SWE: 29.96 in
SWE Day, Calculated Snow Density, and Calculated SWE based on work by Sturm and others (2010)
If Tavg > 32°F, snow melt is factored in at: M (in) = a(Tavg - T32), where a is between 0.0766 - 0.1312 in * °F-1 * day-1 (Currently 0.1039) and T32 = 32°F. This method is from Westerstrom (1982) in Kustas and others (1994) and converted to US customary units.
Forecasted snow from DarkSky
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| Seasonal Variables |
DAYS SINCE JULY 11: -126
July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
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| Calculated Variables |
D0: 3
D1: 1
D2: 1
D3: 5
D4: 1
D5: 2
HSdry: 12.5
These are primarly for the Dry-weather debris flow hazard model, but calculated every day.
HSdry = (([D0 + D1 + D2] * D3) * D4) / D5
See model (right) to figure out how D0 - D5 are calculated.
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| Notes |
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