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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Tuesday, October 6, 2020

[ Monday, October 5, 2020 | Index | Today | Wednesday, October 7, 2020 ]

DAY 6 OF WATER YEAR 2021, FORECAST LAST UPDATED 10/07/2020 04:00:04 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:
MH
MEDIUM HIGH

MODEL USED FOR HAZARD CLASS DETERMINATION:

WET

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 69.21°F
MINIMUM TEMPERATURE (Tmin): 55.91°F
AVERAGE TEMPERATURE (Tavg): 62.56°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.927
Maximum Percentile on this day is based on 90 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 37
18-DAY CUMULATIVE DD32: 471

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): 5.53 in
18-DAY TOTAL (P18): 5.53 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)
Snow at Paradise DEPTH: 0 in
SWE DAY: 88
CALCULATED SNOW DENSITY: 354.47 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: 86

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: 3
D3: 1
D4: 5
D5: 1
HSdry: 60.0

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
2020-10-07 04:00:04OBSERVATION202168669.2099655.9099462.559950005.535.53TF37.20996471.2099688354.46750114127 00.9271689586682190 54315160WETMH
2020-10-06 12:00:02FORECAST202168672.3956.764.54500.01390.01395.535.5439TF40.39474.3987353.5406978345700.959539732773479054315160WETMH
2020-10-06 08:00:03FORECAST202168670.0556.5463.29500.00890.00895.535.5389TF38.05472.0587353.5406978345700.937199281376189054315160WETMH
2020-10-06 04:00:03FORECAST202168670.7653.5462.1500.00880.00885.535.5388TF38.76472.7687353.5406978345700.944810450183679054315160WETMH
2020-10-06 00:00:03FORECAST202168670.5254.9362.72500.01160.01165.535.5416TF38.52461.5288354.4675011412700.942323391107049054315160WETMH
2020-10-05 20:00:04FORECAST202168670.1654.6262.3900.00230.02235.535.5523TF38.16474.1688354.4675011412700.938429140383559054315160WETMH
2020-10-05 16:00:03FORECAST202168670.2656.4563.35500.00120.02125.535.5512TF38.26474.2688354.4675011412700.939530852518289054315160WETMH
2020-10-05 11:59:48FORECAST202168671.2356.9364.0800.00040.02045.535.5504TF39.23475.2388354.4675011412700.949435765351229054315160WETMH
2020-10-05 08:00:00FORECAST202168671.456.8864.1400.00040.00045.535.5304TF39.4475.488354.4675011412700.951030897785799054315160WETMH
2020-10-05 03:59:49FORECAST202168671.5656.5164.03500.00020.00025.535.5302TF39.56474.5688354.4675011412700.952495344203189054315160WETMH
2020-10-05 00:00:03FORECAST202168671.1355.8963.5100.00030.00035.535.5303TF39.13465.1388354.4675011412700.948478350399629054315160WETMH
2020-10-04 20:00:04FORECAST202168670.9855.7963.38500.00020.00025.535.5302TF38.98477.9888354.4675011412700.947015352465799054315160WETMH
2020-10-04 15:59:50FORECAST202168670.6855.863.240005.535.53TF38.68476.6888354.4675011412700.943990986995069054315160WETMH
2020-10-04 11:59:50FORECAST202168670.7856.3363.55500.00020.00025.535.5302TF38.78477.7888354.4675011412700.945013833957469054315160WETMH
2020-10-04 08:00:02FORECAST202168669.9756.3663.165000.015.535.54TF37.97475.9788354.4675011412700.936292918607389054315160WETMH
2020-10-04 04:00:05FORECAST202168670.4456.1463.2900.00040.00045.535.5304TF38.44472.4488354.4675011412700.941475126853129054315160WETMH
2020-10-04 00:00:02FORECAST202168670.7155.6363.1700.00050.01055.535.5405TF38.71461.7188354.4675011412700.94429939947099054315160WETMH
2020-10-03 20:00:02FORECAST202168671.3255.9163.61500.00090.00095.545.5409TF39.32482.3288354.4675011412700.950285310960929054315160WETMH
2020-10-03 16:00:03FORECAST202168671.656.564.0500.00160.00165.545.5416TF39.6481.688354.4675011412700.952855937123799054315160WETMH
2020-10-03 12:00:03FORECAST202168666.5356.661.5650005.545.54TF34.53477.5388354.4675011412700.886987914754729054315230WETMH
2020-10-03 08:00:03FORECAST202168666.656.4361.5150005.545.54TF34.6476.688354.4675011412700.888206174495179054315230WETMH
2020-10-03 04:00:04FORECAST202168672.6353.7463.1850005.535.53TF40.63478.6388354.4675011412700.961411049902439054315160WETMH
2020-10-03 00:00:02FORECAST202168670.1353.962.0150005.535.53TF38.13471.1388354.4675011412700.938095598400729054315160WETMH
2020-10-02 20:00:02FORECAST202168670.1353.0561.5900.00090.00095.555.5509TF38.13486.1388354.4675011412700.938095598400729054315160WETMH
2020-10-02 16:00:03FORECAST202168670.4154.3362.3700.00080.00085.545.5408TF38.41486.4188354.4675011412700.941154522368219054315160WETMH
2020-10-02 12:00:03FORECAST202168669.0752.6760.8700.00050.00055.545.5405TF37.07479.0788354.4675011412700.925385113533719054315160WETMH
2020-10-02 10:04:01FORECAST202168669.0752.6760.8700.00050.00055.545.5405TF37.07479.0788354.4675011412700.925385113533719054315160WETMH
2020-10-02 08:00:02FORECAST202168669.0752.6760.8700.00050.00055.535.5305TF37.07480.0788354.4675011412700.925385113533719054315160WETMH
2020-10-02 04:00:04FORECAST202168668.9752.3960.6800.00050.00055.545.5405TF36.97480.9788354.4675011412700.92409035622059054315160WETMH
2020-10-01 23:59:59FORECAST202168671.8455.7263.7800.00080.00085.555.5508TF39.84489.8488354.4675011412700.954973792741319054315160WETMH
2020-10-01 20:00:02FORECAST202168671.8455.7263.7800.00080.00085.545.5408TF39.84488.8488354.4675011412700.954973792741319054315160WETMH
2020-10-01 15:59:59FORECAST202168671.3355.163.21500.00080.00085.545.5408TF39.33488.3388354.4675011412700.950379000080589054315160WETMH
2020-10-01 12:00:02FORECAST202168672.0855.1363.60500.00450.00455.545.5445TF40.08487.0888354.4675011412700.957014633087589054315160WETMH
2020-10-01 11:14:30FORECAST202168672.0855.1363.60500.00450.00455.545.5445TF40.08487.0888354.4675011412700.957014633087589054315160WETMH
2020-10-01 08:00:02FORECAST202168672.0855.1363.60500.00450.00455.545.5445TF40.08487.0888354.4675011412700.957014633087589054315160WETMH
2020-10-01 04:00:03FORECAST202168672.3254.2163.26500.00250.00255.545.5425TF40.32485.3288354.4675011412700.958980304997349054315160WETMH
2020-10-01 00:00:03FORECAST202168671.4854.8263.1500.00090.00095.535.5309TF39.48480.4888354.4675011412700.951767552924889054315160WETMH
2020-09-30 20:00:03FORECAST202168671.4854.8263.1500.00090.00095.535.5309TF39.48492.4888354.4675011412700.951767552924889054315160WETMH
2020-09-30 16:00:03FORECAST202168670.6754.6662.66500.00090.00095.535.5309TF38.67497.6788354.4675011412700.943887885053649054315160WETMH
2020-09-30 12:00:05FORECAST202168667.451.1359.26500.00110.00115.535.5311TF35.4486.488354.4675011412700.901468253090839054315230WETMH
2020-09-30 04:00:05FORECAST202168668.151.9560.02500.00110.00115.535.5311TF36.1491.188354.4675011412700.912097675819749054315160WETMH
2020-09-30 00:00:03FORECAST202168666.5850.8658.7200.00250.00255.535.5325TF34.58480.5888354.4675011412700.887859059703419054315230WETMH
2020-09-29 20:00:03FORECAST202168666.5853.9660.2700.00180.00185.545.5418TF34.58496.5888354.4675011412700.887859059703419054315230WETMH
2020-09-29 16:00:03FORECAST202168663.4853.6158.54500.00180.00185.545.5418TF31.48491.4888354.4675011412700.824546959046469044315227.5WETMH
2020-09-29 12:00:03FORECAST202168661.8552.1156.9800.00070.00075.545.5407TF29.85485.8588354.4675011412700.783606664054759044315227.5WETMH
2020-09-29 08:00:02FORECAST202168654.5452.1153.32500.00020.00025.545.5402TF22.54478.5488354.4675011412700.547419621649669034315225WETMH
2020-09-29 03:59:50FORECAST202168653.7652.5753.16500.00020.00025.535.5302TF21.76476.7688354.4675011412700.51920638408759034315225WETMH