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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, October 12, 2022

[ Tuesday, October 11, 2022 | Index | Today | Thursday, October 13, 2022 ]

DAY 12 OF WATER YEAR 2023, FORECAST LAST UPDATED 10/13/2022 04:00:11 AM
According to the database, there were no geologic events (floods, debris flows, outburst floods, etc) on this day.

THIS DAY'S DEBRIS FLOW HAZARD CLASS:
H
HIGH

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 71.83°F
MINIMUM TEMPERATURE (Tmin): 52.47°F
AVERAGE TEMPERATURE (Tavg): 62.15°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.992
Maximum Percentile on this day is based on 16 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 40
18-DAY CUMULATIVE DD32: 627

DD32 is calculated as: DD32 = TMAX - 32
18-day Cumulative DD32 is the sum of DD32 for the last 18 days.
Precipitation at Paradise DAY 1: 0.00 in
DAY 1-3 (P3): 0.00 in
DAY 4-15 (P15): 0.35 in
18-DAY TOTAL (P18): 0.35 in

PRECIP THRESHOLD A (PA) EXCEEDED: False
P3 > (-0.67 * P15 + 2.5)

PRECIP THRESHOLD B (PB) EXCEEDED: False
P3 > (-0.67 * P15 + 4.5)
Snow at Paradise DEPTH: 0 in
SWE DAY: 82
CALCULATED SNOW DENSITY: 348.85 kg/m3
CALCULATED SWE: 0.00 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.
Seasonal Variables DAYS SINCE JULY 11: 92

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 5
D1: 4
D2: 5
D3: 1
D4: 5
D5: 1
HSdry: 70.0

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.
Notes

UPDATE HISTORY AND MODEL OUTPUT NOTES:
You can also use this to see how the forecast changes over time. Note that "FORECAST" is the forecasted model whereas "OBSERVED" is the actual observed values for that day.
Show/Hide: Observation | Forecast | Notes | Status

D TYPE WY DOFWY DS0SP T_MAX T_MIN T_AVG SP P1 P3 P15 P18 PA PB DD32 DD32_18 SWE_DAY SNOW_P SWE T_MAX_PERC T_MAX_PERC_YRS D0 D1 D2 D3 D4 D5 HS_DRY FCST_TYPE HAZ_CLASS
2022-10-13 04:00:11OBSERVATION2023129271.8300452.4699662.150000.350.35FF39.83004626.8300482348.85348356404 00.9915512090536716 54515170DRYH
2022-10-13 00:00:02FORECAST2023129257.8657.8657.8600.00070.00070.350.3507FF25.86612.8681347.9053064059600.83709147991111644515232.5DRYL
2022-10-12 12:00:01FORECAST2023129270.858.5964.69500.00290.00290.350.3529FF38.8625.881347.9053064059600.988841697249461654515170DRYH
2022-10-12 08:00:02FORECAST2023129270.3154.2362.2700.0020.0020.350.352FF38.31625.3181347.9053064059600.987306926364091654515170DRYH
2022-10-12 04:00:08FORECAST2023129265.8152.7359.270000.350.35FF33.81620.8181347.9053064059600.962602749273881654515235DRYL
2022-10-12 00:00:02FORECAST2023129270.452.3561.3750000.350.35FF38.4616.482348.8534835640400.987601785496551654515170DRYH
2022-10-11 20:00:02FORECAST2023129270.3451.8461.090000.350.35FF38.34627.3482348.8534835640400.987405879012431654515170DRYH
2022-10-11 16:00:01FORECAST2023129270.2353.8162.020000.350.35FF38.23627.2382348.8534835640400.987039761994191654515170DRYH
2022-10-11 12:00:03FORECAST2023129270.2953.8462.0650000.350.35FF38.29627.2982348.8534835640400.987240585335681654515170DRYH
2022-10-11 08:00:02FORECAST2023129270.0253.0861.550000.350.35FF38.02627.0282348.8534835640400.98631524425021654515170DRYH
2022-10-11 04:00:04FORECAST2023129266.3452.9159.6250000.350.35FF34.34622.3482348.8534835640400.966755468863711654515235DRYL
2022-10-11 00:00:06FORECAST2023129269.7452.7161.2250000.350.35FF37.74607.7482348.8534835640400.985295140209531654515170DRYH
2022-10-10 20:00:03FORECAST2023129269.951.9460.92000.020.350.37FF37.9625.982348.8534835640400.985885771359481654515170DRYH
2022-10-10 16:00:02FORECAST2023129269.5952.8161.2000.020.350.37FF37.59625.5982348.8534835640400.984722269997921654515170DRYH
2022-10-10 12:00:03FORECAST2023129269.7453.2661.5000.020.350.37FF37.74624.7482348.8534835640400.985295140209531654515170DRYH
2022-10-10 08:00:03FORECAST2023129269.6953.5761.63000.030.350.38FF37.69623.6982348.8534835640400.985106267866171654515170DRYH
2022-10-10 04:00:16FORECAST2023129269.7952.6661.225000.030.350.38FF37.79619.7982348.8534835640400.985481951916091654515170DRYH
2022-10-10 00:00:05FORECAST2023129270.2754.2262.245000.040.350.39FF38.27620.2782348.8534835640400.987173944980751654515170DRYH
2022-10-09 20:00:04FORECAST2023129271.6654.6263.14000.040.350.39FF39.66630.6682348.8534835640400.991148198095221654515170DRYH
2022-10-09 16:00:04FORECAST2023129272.0154.7663.385000.030.350.38FF40.01626.0182348.8534835640400.991960117533121654515170DRYH
2022-10-09 12:00:04FORECAST2023129274.4954.3164.4000.030.350.38FF42.49628.4982348.8534835640400.996064525806081654515170DRYH
2022-10-09 08:00:04FORECAST2023129268.6353.2160.92000.030.350.38FF36.63621.6382348.8534835640400.980584087257281654515170DRYH
2022-10-09 04:00:04FORECAST2023129274.8851.9363.405000.020.350.37FF42.88635.8882348.8534835640400.996501045840371654515170DRYH
2022-10-09 00:00:04FORECAST2023129274.8853.8164.345000.030.350.38FF42.88621.8882348.8534835640400.996501045840371654515170DRYH
2022-10-08 20:00:02FORECAST2023129273.4953.8763.68000.040.350.39FF41.49638.4982348.8534835640400.994714368212991654515170DRYH
2022-10-08 16:00:06FORECAST2023129273.4353.9563.69000.030.350.38FF41.43637.4382348.8534835640400.994621589490611654515170DRYH
2022-10-08 12:00:05FORECAST2023129272.1953.0862.635000.030.350.38FF40.19632.1982348.8534835640400.992351624420931654515170DRYH
2022-10-08 08:00:02FORECAST2023129270.9954.862.895000.030.350.38FF38.99628.9982348.8534835640400.989391931802521654515170DRYH
2022-10-08 04:00:11FORECAST2023129270.9954.862.895000.030.350.38FF38.99628.9982348.8534835640400.989391931802521654515170DRYH
2022-10-08 00:00:03FORECAST2023129272.4852.7862.63000.030.350.38FF40.48622.4882348.8534835640400.992947158697071654515170DRYH
2022-10-07 20:00:02FORECAST2023129270.3251.9261.12000.040.350.39FF38.32632.3282348.8534835640400.987339984965741654515170DRYH
2022-10-07 16:00:05FORECAST2023129270.2951.9561.12000.040.350.39FF38.29633.2982348.8534835640400.987240585335681654515170DRYH
2022-10-07 12:00:05FORECAST2023129273.1353.9463.535000.040.350.39FF41.13636.1382348.8534835640400.9941356436181654515170DRYH
2022-10-07 08:00:04FORECAST2023129275.8854.865.34000.040.350.39FF43.88636.8882348.8534835640400.997428446787041654515170DRYH
2022-10-07 04:00:11FORECAST2023129275.854.865.3000.050.350.4FF43.8636.882348.8534835640400.997363398781711654515170DRYH
2022-10-07 00:00:09FORECAST2023129273.4455.464.42000.060.350.41FF41.44620.4482348.8534835640400.994637152428871654515170DRYH
2022-10-06 20:00:10FORECAST2023129272.355.6763.985000.060.350.41FF40.3634.382348.8534835640400.992582533928391654515170DRYH
2022-10-06 16:00:05FORECAST2023129272.355.6763.985000.030.350.38FF40.3630.382348.8534835640400.992582533928391654515170DRYH
2022-10-06 12:00:05FORECAST2023129266.0749.1457.605000.030.350.38FF34.07621.0782348.8534835640400.964689882559211654515235DRYL
2022-10-06 08:00:07FORECAST2023129265.5448.657.07000.030.350.38FF33.54616.5482348.8534835640400.960330116382931654515235DRYL
2022-10-06 04:00:06FORECAST2023129265.3848.5156.945000.030.350.38FF33.38618.3882348.8534835640400.958931364853331654515235DRYL
2022-10-06 00:00:07FORECAST2023129261.240.7250.96000.340.350.69FF29.2591.282348.8534835640400.906243089235551654425265DRYH
2022-10-05 20:00:05FORECAST2023129254.5638.6546.60500.00550.44550.350.7955FF22.56589.5682348.8534835640400.742630711043481644425260DRYH
2022-10-05 16:00:04FORECAST2023129264.9950.6457.81500.00560.17560.350.5256FF32.99610.9982348.8534835640400.955354515397971654525270DRYH
2022-10-05 12:00:05FORECAST2023129267.33-134.54-33.6050000.350.35FF35.33665.3382348.8534835640400.973497520706691654515235DRYL
2022-10-05 08:00:04FORECAST2023129260.06-132.51-36.2250000.350.35FF28.06661.0682348.8534835640400.885598506426111654515235DRYL
2022-10-05 04:00:12FORECAST2023129260.06-131.5-35.720000.350.35FF28.06661.0682348.8534835640400.885598506426111654515235DRYL