MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Monday, September 5, 2022

[ Sunday, September 4, 2022 | Index | Today | Tuesday, September 6, 2022 ]

DAY 340 OF WATER YEAR 2022, FORECAST LAST UPDATED 09/06/2022 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:
L
LOW

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 59.88°F
MINIMUM TEMPERATURE (Tmin): 41.47°F
AVERAGE TEMPERATURE (Tavg): 50.68°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.472
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: 28
18-DAY CUMULATIVE DD32: 664

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: 247
CALCULATED SNOW DENSITY: 464.86 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: 55

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 2
D1: 3
D2: 5
D3: 1
D4: 5
D5: 2
HSdry: 25.0

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
2022-09-06 04:00:06OBSERVATION20223405559.8800241.4699850.6750000.020.02FF27.88002663.88002247464.86134940078 00.4719729220858716 23515225DRYL
2022-09-06 00:00:02FORECAST20223405555.6855.6855.680000.020.02FF23.68659.68248465.3659369495300.333098471837091623515225DRYL
2022-09-05 12:00:01FORECAST20223405560.3851.1655.770000.020.02FF28.38664.38248465.3659369495300.489098247128081623515225DRYL
2022-09-05 08:00:02FORECAST20223405558.0742.5350.300.00130.00130.020.0213FF26.07662.07248465.3659369495300.410635025709381623515225DRYL
2022-09-05 04:00:07FORECAST20223405560.944.2952.59500.00030.00030.020.0203FF28.9664.9248465.3659369495300.506930199728611633515227.5DRYL
2022-09-05 00:00:03FORECAST20223405560.8442.2851.5600.00250.00250.020.0225FF28.84649.84247464.8613494007800.50487269734661633515227.5DRYL
2022-09-04 20:00:02FORECAST20223405560.5342.4551.4900.00610.02610.020.0461FF28.53660.53247464.8613494007800.494241414481821623515225DRYL
2022-09-04 16:00:01FORECAST20223405560.3644.5852.4700.01620.03620.020.0562FF28.36660.36247464.8613494007800.488412609753891623515225DRYL
2022-09-04 12:00:02FORECAST20223405559.8445.8252.8300.01990.03990.020.0599FF27.84659.84247464.8613494007800.470603972976731623515225DRYL
2022-09-04 08:00:02FORECAST20223405559.7445.8152.77500.00610.02610.020.0461FF27.74659.74247464.8613494007800.467184863818571623515225DRYL
2022-09-04 04:00:07FORECAST20223405560.1245.2252.6700.00680.02680.020.0468FF28.12657.12247464.8613494007800.480188211094911623515225DRYL
2022-09-04 00:00:03FORECAST20223405560.1544.4252.28500.00810.03810.020.0581FF28.15650.15247464.8613494007800.481215871748771623515225DRYL
2022-09-03 20:00:03FORECAST20223405560.1945.2952.7400.00680.04680.020.0668FF28.19659.19247464.8613494007800.482586278974211623515225DRYL
2022-09-03 16:00:02FORECAST20223405560.545.5353.01500.00760.01760.020.0376FF28.5660.5247464.8613494007800.493212677054841623515225DRYL
2022-09-03 12:00:03FORECAST20223405560.5945.1952.8900.00430.01430.020.0343FF28.59660.59247464.8613494007800.496298997389811623515225DRYL
2022-09-03 08:00:03FORECAST20223405559.4944.7852.13500.00330.03330.020.0533FF27.49660.49247464.8613494007800.458648224242331623515225DRYL
2022-09-03 04:00:08FORECAST20223405559.3445.1752.25500.00440.04440.020.0644FF27.34660.34247464.8613494007800.453535124989261623515225DRYL
2022-09-03 00:00:04FORECAST20223405559.0347.5353.2800.00710.01710.020.0371FF27.03644.03247464.8613494007800.442993364805131623515225DRYL
2022-09-02 20:00:03FORECAST20223405560.5347.8754.200.01180.02180.020.0418FF28.53660.53247464.8613494007800.494241414481821623515225DRYL
2022-09-02 16:00:03FORECAST20223405562.1349.0555.5900.01970.02970.020.0497FF30.13663.13247464.8613494007800.548990229383651633515227.5DRYL
2022-09-02 12:00:04FORECAST20223405559.6947.8653.77500.01750.02750.020.0475FF27.69660.69247464.8613494007800.465476200880631623515225DRYL
2022-09-02 08:00:03FORECAST20223405558.9348.3553.6400.01590.02590.020.0459FF26.93654.93247464.8613494007800.439601020077771623515225DRYL
2022-09-02 04:00:08FORECAST20223405563.2347.7455.48500.01280.01280.020.0328FF31.23661.23247464.8613494007800.586158176066141633515227.5DRYL
2022-09-02 00:00:04FORECAST20223405563.1649.0156.08500.02080.03080.020.0508FF31.16654.16247464.8613494007800.583812170364621633515227.5DRYL
2022-09-01 20:00:04FORECAST20223405564.0448.1256.0800.00820.03820.020.0582FF32.04666.04247464.8613494007800.613061029621371633515227.5DRYL
2022-09-01 16:00:03FORECAST20223405564.0448.1256.0800.00610.01610.020.0361FF32.04665.04247464.8613494007800.613061029621371633515227.5DRYL
2022-09-01 12:00:04FORECAST20223405565.4847.7556.61500.0030.0230.020.043FF33.48667.48247464.8613494007800.659500054241331633515227.5DRYL
2022-09-01 08:00:04FORECAST20223405565.0148.2456.62500.0030.0330.020.053FF33.01667.01247464.8613494007800.644567322588391633515227.5DRYL
2022-09-01 04:00:09FORECAST20223405565.0148.2456.62500.0030.0330.020.053FF33.01667.01247464.8613494007800.644567322588391633515227.5DRYL
2022-09-01 00:00:04FORECAST20223405561.8347.8754.8500.01030.03030.020.0503FF29.83645.83247464.8613494007800.53876416004841633515227.5DRYL
2022-08-31 20:00:04FORECAST20223405561.7547.2454.49500.01480.02480.030.0548FF29.75668.75247464.8613494007800.536032589844981633515227.5DRYL
2022-08-31 16:00:04FORECAST20223405561.7547.2454.49500.01480.03480.030.0648FF29.75669.75247464.8613494007800.536032589844981633515227.5DRYL
2022-08-31 12:00:04FORECAST20223405561.9747.8754.9200.00720.01720.030.0472FF29.97673.97247464.8613494007800.543539933456071633515227.5DRYL
2022-08-31 08:00:04FORECAST20223405560.8948.454.64500.00740.00740.040.0474FF28.89670.89247464.8613494007800.506587293989591633515227.5DRYL
2022-08-31 04:00:07FORECAST20223405560.8448.3854.6100.00740.00740.030.0374FF28.84670.84247464.8613494007800.50487269734661633515227.5DRYL
2022-08-31 00:00:05FORECAST20223405565.3748.256.78500.00040.00040.040.0404FF33.37660.37247464.8613494007800.656026450254891633515227.5DRYL
2022-08-30 20:00:04FORECAST20223405568.9249.1259.020000.040.04FF36.92675.92247464.8613494007800.760170553749341643515160DRYH
2022-08-30 16:00:04FORECAST20223405568.9149.1459.0250000.040.04FF36.91674.91247464.8613494007800.75990327401031643515160DRYH
2022-08-30 12:00:04FORECAST20223405565.0251.158.0600.00580.00580.030.0358FF33.02678.02247464.8613494007800.644887459996051633515227.5DRYL
2022-08-30 08:00:03FORECAST20223405565.2748.8257.04500.00580.00580.030.0358FF33.27674.27247464.8613494007800.652857157983681633515227.5DRYL
2022-08-30 04:00:09FORECAST20223405565.2748.8257.04500.00580.00580.030.0358FF33.27676.27247464.8613494007800.652857157983681633515227.5DRYL
2022-08-30 00:00:05FORECAST20223405567.4951.8459.66500.00150.03150.030.0615FF35.49668.49247464.8613494007800.720356535216981643515230DRYL
2022-08-29 20:00:03FORECAST20223405563.0752.5257.79500.00660.03660.030.0666FF31.07668.07247464.8613494007800.580791496080681633515227.5DRYL
2022-08-29 16:00:04FORECAST20223405563.0352.5257.77500.00370.03370.040.0737FF31.03668.03247464.8613494007800.579447433161851633515227.5DRYL
2022-08-29 12:00:05FORECAST20223405558.9750.554.73500.03070.04070.060.1007FF26.97659.97247464.8613494007800.440957440214081623515225DRYL
2022-08-29 08:00:04FORECAST20223405555.751.6753.6850000.050.05FF23.7654.7247464.8613494007800.333723693897431623515225DRYL
2022-08-29 04:00:09FORECAST20223405555.752.7554.2250000.050.05FF23.7657.7247464.8613494007800.333723693897431623515225DRYL