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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, August 31, 2022

[ Tuesday, August 30, 2022 | Index | Today | Thursday, September 1, 2022 ]

DAY 335 OF WATER YEAR 2022, FORECAST LAST UPDATED 09/01/2022 04:00:06 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): 76.68°F
MINIMUM TEMPERATURE (Tmin): 57.87°F
AVERAGE TEMPERATURE (Tavg): 67.27°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.958
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: 45
18-DAY CUMULATIVE DD32: 694

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): 0.02 in
18-DAY TOTAL (P18): 0.02 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: 242
CALCULATED SNOW DENSITY: 462.31 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: 50

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 5
D1: 3
D2: 5
D3: 1
D4: 5
D5: 1
HSdry: 65.0

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
2022-09-01 04:00:06OBSERVATION20223355076.6799657.8699667.274960000.020.02FF44.67996693.67996242462.30944875246 00.9577321638696616 53515165DRYH
2022-09-01 00:00:02FORECAST20223355057.7257.7257.720000.020.02FF25.72674.72243462.8237151222600.457545327858161623515225DRYL
2022-08-31 12:00:02FORECAST20223355075.8758.2667.06500.00580.00580.020.0258FF43.87692.87243462.8237151222600.950168784806661653515165DRYH
2022-08-31 08:00:02FORECAST20223355071.3958.9665.17500.01570.01570.020.0357FF39.39688.39243462.8237151222600.887449517281541653515165DRYH
2022-08-31 04:00:05FORECAST20223355071.6258.9465.2800.01410.01410.020.0341FF39.62688.62243462.8237151222600.891641669499831653515165DRYH
2022-08-31 00:00:03FORECAST20223355072.0958.9465.51500.01810.01810.020.0381FF40.09675.09242462.3094487524600.899857424734291653515165DRYH
2022-08-30 20:00:02FORECAST20223355071.6158.4865.04500.02310.02310.020.0431FF39.61685.61242462.3094487524600.891461763463281653515165DRYH
2022-08-30 16:00:02FORECAST20223355071.8758.6165.2400.0190.0190.020.039FF39.87685.87242462.3094487524600.896070001920391653515165DRYH
2022-08-30 12:00:02FORECAST20223355071.8458.5165.17500.00760.00760.020.0276FF39.84685.84242462.3094487524600.895545617723341653515165DRYH
2022-08-30 08:00:02FORECAST20223355071.9258.3565.13500.00760.00760.020.0276FF39.92684.92242462.3094487524600.896939742109831653515165DRYH
2022-08-30 04:00:07FORECAST20223355071.8358.8965.3600.00760.00760.020.0276FF39.83685.83242462.3094487524600.895370399081011653515165DRYH
2022-08-30 00:00:03FORECAST20223355072.7358.8265.77500.00870.00870.020.0287FF40.73675.73242462.3094487524600.91030258779671653515165DRYH
2022-08-29 20:00:02FORECAST20223355071.3558.4864.91500.00890.00890.020.0289FF39.35681.35242462.3094487524600.886708815900981653515165DRYH
2022-08-29 16:00:03FORECAST20223355071.1658.8965.02500.00890.01890.020.0389FF39.16681.16242462.3094487524600.883143153456251653515165DRYH
2022-08-29 12:00:03FORECAST20223355070.7758.8764.8200.02950.03950.020.0595FF38.77680.77242462.3094487524600.87557746309061653515165DRYH
2022-08-29 08:00:03FORECAST20223355071.1158.7764.9400.02970.02970.020.0497FF39.11680.11242462.3094487524600.882191781829861653515165DRYH
2022-08-29 04:00:07FORECAST20223355071.0358.8164.9200.02970.02970.020.0497FF39.03682.03242462.3094487524600.880658246028941653515165DRYH
2022-08-29 00:00:04FORECAST20223355070.7558.5164.6300.02570.02570.020.0457FF38.75670.75242462.3094487524600.87518048028951653515165DRYH
2022-08-28 20:00:03FORECAST20223355072.9359.266.06500.02470.02470.020.0447FF40.93678.93242462.3094487524600.91339506594941653515165DRYH
2022-08-28 16:00:04FORECAST20223355072.2358.865.51500.03230.03230.020.0523FF40.23678.23242462.3094487524600.90221471762081653515165DRYH
2022-08-28 12:00:03FORECAST20223355073.5458.8866.2100.02550.02550.020.0455FF41.54679.54242462.3094487524600.922336363716271653515165DRYH
2022-08-28 08:00:03FORECAST20223355073.2658.8666.0600.020.020.040.06FF41.26681.26242462.3094487524600.918322926533661653515165DRYH
2022-08-28 04:00:07FORECAST20223355073.2158.8666.03500.02020.02020.020.0402FF41.21681.21242462.3094487524600.917590130460531653515165DRYH
2022-08-28 00:00:04FORECAST20223355074.0460.0867.0600.02080.02080.020.0408FF42.04675.04242462.3094487524600.929129500982461653515165DRYH
2022-08-27 20:00:04FORECAST20223355073.8860.467.1400.0320.0320.040.072FF41.88682.88242462.3094487524600.92700707061341653515165DRYH
2022-08-27 16:00:04FORECAST20223355073.8360.467.11500.03240.03240.040.0724FF41.83681.83242462.3094487524600.926333964628351653515165DRYH
2022-08-27 12:00:06FORECAST20223355074.8860.4367.65500.00650.00650.040.0465FF42.88682.88242462.3094487524600.939505357290271653515165DRYH
2022-08-27 08:00:04FORECAST20223355073.460.3766.88500.01480.01480.030.0448FF41.4678.4242462.3094487524600.92034870312751653515165DRYH
2022-08-27 04:00:08FORECAST20223355074.2760.3767.3200.01480.01480.040.0548FF42.27683.27242462.3094487524600.932097294997551653515165DRYH
2022-08-27 00:00:04FORECAST20223355075.0458.9967.01500.00460.00460.050.0546FF43.04670.04242462.3094487524600.941340136207981653515165DRYH
2022-08-26 20:00:04FORECAST20223355075.4858.7867.1300.00460.00460.080.0846FF43.48679.48242462.3094487524600.946161683340311653515165DRYH
2022-08-26 16:00:04FORECAST20223355075.4858.8267.1500.00520.00520.150.1552FF43.48681.48242462.3094487524600.946161683340311653515165DRYH
2022-08-26 12:00:06FORECAST20223355073.6659.7966.72500.02440.02440.150.1744FF41.66673.66242462.3094487524600.924010007139411653515165DRYH
2022-08-26 08:00:04FORECAST20223355074.5160.4767.4900.02210.02210.120.1421FF42.51674.51242462.3094487524600.935091178861611653515165DRYH
2022-08-26 04:00:08FORECAST20223355074.5660.4767.51500.02210.02210.110.1321FF42.56676.56242462.3094487524600.93570185276211653515165DRYH
2022-08-26 00:00:04FORECAST20223355074.4558.7566.60000.110.11FF42.45660.45242462.3094487524600.934352458128991653515165DRYH
2022-08-25 20:00:05FORECAST20223355073.5359.5666.5450000.130.13FF41.53673.53242462.3094487524600.922195644407421653515165DRYH
2022-08-25 16:00:04FORECAST20223355073.3259.5866.450000.140.14FF41.32676.32242462.3094487524600.91919580647371653515165DRYH
2022-08-25 12:00:03FORECAST20223355076.3162.0269.1650000.150.15FF44.31680.31242462.3094487524600.954400989522071653515165DRYH
2022-08-25 08:00:19FORECAST20223355076.2962.0469.1650000.140.14FF44.29673.29242462.3094487524600.954215076250091653515165DRYH
2022-08-25 04:00:06FORECAST20223355077.0762.9570.010000.150.15FF45.07680.07242462.3094487524600.96102868917461653515165DRYH
2022-08-25 00:00:05FORECAST20223355075.1760.0567.610000.130.13FF43.17663.17242462.3094487524600.942798595179021653515165DRYH
2022-08-24 20:00:04FORECAST20223355075.2660.2367.7450000.120.12FF43.26677.26242462.3094487524600.943791525131471653515165DRYH
2022-08-24 16:00:05FORECAST20223355072.3357.1564.740000.120.12FF40.33672.33242462.3094487524600.90387350051141653515165DRYH
2022-08-24 12:00:04FORECAST20223355077.3466.2971.8150000.140.14FF45.34687.34242462.3094487524600.963186019942721653515165DRYH
2022-08-24 08:00:04FORECAST20223355067.8266.367.060000.160.16FF35.82669.82242462.3094487524600.807364224666391643515230DRYL
2022-08-24 04:00:08FORECAST20223355068.4667.968.180000.150.15FF36.46673.46242462.3094487524600.82382046758181643515160DRYH