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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Monday, October 5, 2020

[ Sunday, October 4, 2020 | Index | Today | Tuesday, October 6, 2020 ]

DAY 5 OF WATER YEAR 2021, FORECAST LAST UPDATED 10/06/2020 04:00:03 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): 64.69°F
MINIMUM TEMPERATURE (Tmin): 43.28°F
AVERAGE TEMPERATURE (Tavg): 53.99°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.897
Maximum Percentile on this day is based on 91 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 33
18-DAY CUMULATIVE DD32: 453

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): 5.56 in
18-DAY TOTAL (P18): 5.56 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: 89
CALCULATED SNOW DENSITY: 355.39 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: 85

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: 2
HSdry: 30.0

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
2020-10-06 04:00:03OBSERVATION202158564.6899843.2800653.985020005.565.56TF32.68998452.6899889355.39078927845 00.896679198792491 54315230WETMH
2020-10-06 00:00:03FORECAST202158554.4854.4854.4800.00140.00145.565.5614TF22.48442.4888354.4675011412700.620673277695189134315225WETMH
2020-10-05 11:59:47FORECAST202158567.1455.8361.48500.01960.01965.565.5796TF35.14455.1488354.4675011412700.932221968264519154315230WETMH
2020-10-05 08:00:00FORECAST202158566.845.5656.1800.00420.00425.565.5642TF34.8454.888354.4675011412700.927945015570329154315230WETMH
2020-10-05 03:59:49FORECAST202158566.4547.2456.84500.00270.00275.565.5627TF34.45454.4588354.4675011412700.923329977362439154315230WETMH
2020-10-05 00:00:03FORECAST202158567.7846.3557.06500.00150.00155.565.5615TF35.78444.7889355.3907892784500.939739332941869154315230WETMH
2020-10-04 20:00:03FORECAST202158567.647.4257.5100.00280.00285.565.5628TF35.6457.689355.3907892784500.937694022564799154315230WETMH
2020-10-04 15:59:50FORECAST202158567.3948.2357.8100.00260.00265.565.5626TF35.39457.3989355.3907892784500.935240086233499154315230WETMH
2020-10-04 11:59:50FORECAST202158567.7549.4658.60500.00040.00045.565.5604TF35.75457.7589355.3907892784500.939402133255639154315230WETMH
2020-10-04 08:00:02FORECAST202158567.4349.358.365000.015.565.57TF35.43457.4389355.3907892784500.935713180615499154315230WETMH
2020-10-04 04:00:04FORECAST202158567.5449.0958.31500.00020.00025.565.5602TF35.54452.5489355.3907892784500.937000390641559154315230WETMH
2020-10-04 00:00:02FORECAST202158567.8249.5158.665000.015.565.57TF35.82441.8289355.3907892784500.940186653437629154315230WETMH
2020-10-03 20:00:02FORECAST202158567.5948.9658.275000.015.565.57TF35.59461.5989355.3907892784500.937578831261229154315230WETMH
2020-10-03 16:00:03FORECAST202158567.624958.31000.015.565.57TF35.62460.6289355.3907892784500.937923909434389154315230WETMH
2020-10-03 12:00:03FORECAST202158567.8349.5258.67500.00030.01035.565.5703TF35.83461.8389355.3907892784500.940298077496819154315230WETMH
2020-10-03 08:00:03FORECAST202158567.414958.20500.00020.01025.565.5702TF35.41461.4189355.3907892784500.935476969119019154315230WETMH
2020-10-03 04:00:04FORECAST202158567.7649.0858.420005.565.56TF35.76456.7689355.3907892784500.939514696217059154315230WETMH
2020-10-03 00:00:02FORECAST202158567.0650.3958.72500.00220.00225.565.5622TF35.06452.0689355.3907892784500.931233642118059154315230WETMH
2020-10-02 20:00:02FORECAST202158567.4550.1758.8100.0010.0115.575.581TF35.45467.4589355.3907892784500.935948721792419154315230WETMH
2020-10-02 16:00:03FORECAST202158567.1550.5558.8500.00150.00155.575.5715TF35.15467.1589355.3907892784500.932344736299589154315230WETMH
2020-10-02 12:00:03FORECAST202158561.9249.9955.95500.00210.00215.575.5721TF29.92460.9289355.3907892784500.842171198506299144315227.5WETMH
2020-10-02 10:04:01FORECAST202158561.9249.9955.95500.00210.00215.575.5721TF29.92460.9289355.3907892784500.842171198506299144315227.5WETMH
2020-10-02 08:00:02FORECAST202158562.3649.8956.12500.00040.00045.565.5604TF30.36462.3689355.3907892784500.851899928270459154315230WETMH
2020-10-02 04:00:04FORECAST202158568.0549.7458.89500.00180.00185.575.5718TF36.05463.0589355.3907892784500.942708626939189154315160WETMH
2020-10-01 23:59:59FORECAST202158567.848.9258.3600.00020.00025.585.5802TF35.8468.889355.3907892784500.939963318316219154315230WETMH
2020-10-01 20:00:02FORECAST202158567.848.1357.9650005.575.57TF35.8467.889355.3907892784500.939963318316219154315230WETMH
2020-10-01 15:59:59FORECAST202158567.5947.7157.650005.575.57TF35.59467.5989355.3907892784500.937578831261229154315230WETMH
2020-10-01 12:00:02FORECAST202158568.949.1759.03500.00090.00095.575.5709TF36.9465.989355.3907892784500.951312023600459154315160WETMH
2020-10-01 11:14:30FORECAST202158568.949.1759.03500.00090.00095.575.5709TF36.9465.989355.3907892784500.951312023600459154315160WETMH
2020-10-01 08:00:02FORECAST202158568.949.1759.03500.00090.00095.575.5709TF36.9465.989355.3907892784500.951312023600459154315160WETMH
2020-10-01 04:00:03FORECAST202158567.9948.8758.4300.00090.00095.575.5709TF35.99463.9989355.3907892784500.942058903642649154315230WETMH
2020-10-01 00:00:03FORECAST202158564.8351.4958.1600.00130.00135.565.5613TF32.83459.8389355.3907892784500.89901778114869154315230WETMH
2020-09-30 20:00:03FORECAST202158564.8351.4958.1600.00130.00135.565.5613TF32.83471.8389355.3907892784500.89901778114869154315230WETMH
2020-09-30 16:00:03FORECAST202158569.6352.4361.0300.00130.00135.565.5613TF37.63477.6389355.3907892784500.957849581794159154315160WETMH
2020-09-30 12:00:05FORECAST202158568.4249.1958.80500.00110.00115.565.5611TF36.42470.4289355.3907892784500.946589835345399154315160WETMH
2020-09-30 04:00:05FORECAST202158569.2650.8560.05500.00110.00115.565.5611TF37.26474.2689355.3907892784500.954630463873929154315160WETMH
2020-09-30 00:00:03FORECAST202158571.0251.761.3600.00260.00265.565.5626TF39.02465.0289355.3907892784500.968333998865959154315160WETMH
2020-09-29 20:00:03FORECAST202158571.0251.761.3600.00260.00265.575.5726TF39.02481.0289355.3907892784500.968333998865959154315160WETMH
2020-09-29 16:00:03FORECAST202158570.0249.6759.84500.00260.00265.575.5726TF38.02479.0289355.3907892784500.961040588101739154315160WETMH
2020-09-29 12:00:03FORECAST202158568.0752.0260.04500.00020.00025.575.5702TF36.07475.0789355.3907892784500.942923927039339154315160WETMH
2020-09-29 08:00:02FORECAST202158568.0752.0260.04500.00020.00025.575.5702TF36.07475.0789355.3907892784500.942923927039339154315160WETMH
2020-09-29 03:59:49FORECAST202158566.7850.5158.64500.00020.00025.565.5602TF34.78473.7889355.3907892784500.927687150855239154315230WETMH
2020-09-28 23:59:49FORECAST202158561.9149.4855.69500.13620.13625.565.6962TF29.91475.9189355.3907892784500.841945333344239144325255WETMH
2020-09-28 20:00:04FORECAST202158561.9149.4855.69500.12350.12355.565.6835TF29.91477.9189355.3907892784500.841945333344239144325255WETMH
2020-09-28 16:00:02FORECAST202158559.1449.1554.14500.10780.10785.565.6678TF27.14468.1489355.3907892784500.77132855437739144325255WETMH
2020-09-28 12:00:03FORECAST202158555.8850.1653.0200.00020.00025.565.5602TF23.88469.8889355.3907892784500.669387062919619134315225WETMH
2020-09-28 08:00:03FORECAST202158552.7250.6851.700.00020.00025.575.5702TF20.72466.7289355.3907892784500.556697721463049134315225WETMH
2020-09-28 04:00:03FORECAST202158553.2252.452.810005.575.57TF21.22471.2289355.3907892784500.575101216731939134315225WETMH