MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, July 14, 2021

[ Tuesday, July 13, 2021 | Index | Today | Thursday, July 15, 2021 ]

DAY 287 OF WATER YEAR 2021, FORECAST LAST UPDATED 07/15/2021 04:00:07 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): 65.64°F
MINIMUM TEMPERATURE (Tmin): 50.07°F
AVERAGE TEMPERATURE (Tavg): 57.86°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.662
Maximum Percentile on this day is based on 94 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 34
18-DAY CUMULATIVE DD32: 657

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): 0.08 in
18-DAY TOTAL (P18): 0.08 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: 194
CALCULATED SNOW DENSITY: 435.18 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: 2

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 3
D1: 2
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
2021-07-15 04:00:07OBSERVATION2021287265.6400250.0700257.855020000.080.08FF33.64002656.64002194435.17857461327 00.6622625331449494 32515225DRYL
2021-07-15 00:00:02FORECAST2021287249.3149.3149.3100.00020.00020.080.0802FF17.31640.31195435.7957426677800.120922353127689412515220DRYL
2021-07-14 12:00:03FORECAST2021287264.4550.757.57500.00040.00040.080.0804FF32.45655.45195435.7957426677800.619005702398639432515225DRYL
2021-07-14 08:00:03FORECAST2021287263.650.9857.2900.00240.00240.080.0824FF31.6654.6195435.7957426677800.587132981496929432515225DRYL
2021-07-14 04:00:08FORECAST2021287264.5451.157.820000.080.08FF32.54655.54195435.7957426677800.622337748325619432515225DRYL
2021-07-14 00:00:05FORECAST2021287264.0850.7757.42500.00250.00250.080.0825FF32.08642.08194435.1785746132700.605216915760319432515225DRYL
2021-07-13 20:00:03FORECAST2021287263.9650.6657.310000.080.08FF31.96656.96194435.1785746132700.600715495846099432515225DRYL
2021-07-13 16:00:02FORECAST2021287263.8350.4357.1300.00020.00020.080.0802FF31.83656.83194435.1785746132700.595823822815739432515225DRYL
2021-07-13 12:00:04FORECAST2021287264.1650.5457.350000.080.08FF32.16657.16194435.1785746132700.608210120185599432515225DRYL
2021-07-13 08:00:05FORECAST2021287261.6250.756.160000.080.08FF29.62650.62194435.1785746132700.510988511563149432515225DRYL
2021-07-13 04:00:07FORECAST2021287261.6150.6156.110000.080.08FF29.61648.61194435.1785746132700.51060053446939432515225DRYL
2021-07-13 00:00:04FORECAST2021287263.9450.6857.310000.080.08FF31.94645.94194435.1785746132700.599963938211659432515225DRYL
2021-07-12 20:00:06FORECAST2021287263.4450.2656.850000.080.08FF31.44654.44194435.1785746132700.581061620296619432515225DRYL
2021-07-12 16:00:05FORECAST2021287263.850.5857.1900.00020.00020.080.0802FF31.8654.8194435.1785746132700.594692814554049432515225DRYL
2021-07-12 12:00:06FORECAST2021287263.3550.1456.7450000.080.08FF31.35654.35194435.1785746132700.577637879347129432515225DRYL
2021-07-12 08:00:06FORECAST2021287263.5350.0556.79000.040.080.12FF31.53651.53194435.1785746132700.584479233997759432515225DRYL
2021-07-12 04:00:08FORECAST2021287263.5450.1256.8300.00050.00050.080.0805FF31.54654.54194435.1785746132700.584858579735739432515225DRYL
2021-07-12 00:00:06FORECAST2021287263.8850.3957.1350000.080.08FF31.88644.88194435.1785746132700.597707053895249432515225DRYL
2021-07-11 20:00:04FORECAST2021287266.1751.4758.8200.00040.00040.080.0804FF34.17657.17194435.1785746132700.68089677606729432515225DRYL
2021-07-11 16:00:05FORECAST2021287265.750.8158.25500.00180.00180.080.0818FF33.7657.7194435.1785746132700.664392599931419432515225DRYL
2021-07-11 12:00:05FORECAST2021287261.6449.5355.5850000.080.08FF29.64650.64194435.1785746132700.511764434190769432515225DRYL
2021-07-11 08:00:05FORECAST2021287261.9149.5355.720000.080.08FF29.91648.91194435.1785746132700.522233835620279432515225DRYL
2021-07-11 04:00:07FORECAST2021287266.1449.7457.940000.080.08FF34.14657.14194435.1785746132700.679853515770049432515225DRYL
2021-07-11 00:00:06FORECAST2021287265.9349.5557.740000.160.16FF33.93641.93194435.1785746132700.672511248129989432515225DRYL
2021-07-10 20:00:06FORECAST2021287265.6749.2857.4750000.080.08FF33.67655.67194435.1785746132700.663327865986119432515225DRYL
2021-07-10 16:00:05FORECAST2021287263.0350.4856.755000.010.080.09FF31.03656.03194435.1785746132700.565418744723789432515225DRYL
2021-07-10 12:00:04FORECAST2021287265.1450.157.620000.080.08FF33.14654.14194435.1785746132700.644308507062489432515225DRYL
2021-07-10 08:00:06FORECAST2021287261.7449.4455.590000.080.08FF29.74649.74194435.1785746132700.515643320754879432515225DRYL
2021-07-10 04:00:07FORECAST2021287261.2949.555.3950000.080.08FF29.29655.29194435.1785746132700.498181974278569422515222.5DRYL
2021-07-10 00:00:06FORECAST2021287266.451.3758.8850000.080.08FF34.4651.4194435.1785746132700.688847103074679432515225DRYL
2021-07-09 20:00:06FORECAST2021287266.8250.8858.850000.080.08FF34.82662.82194435.1785746132700.703138322376939442515227.5DRYL
2021-07-09 16:00:06FORECAST2021287266.8350.8858.8550000.080.08FF34.83661.83194435.1785746132700.703474904578539442515227.5DRYL
2021-07-09 12:00:06FORECAST2021287268.3652.7160.5350000.080.08FF36.36665.36194435.1785746132700.752787817741399442515155DRYH
2021-07-09 08:00:06FORECAST2021287268.2252.8660.540000.080.08FF36.22658.22194435.1785746132700.748464687034669442515155DRYH
2021-07-09 04:00:07FORECAST2021287268.352.7860.540000.10.1FF36.3670.3194435.1785746132700.750939919720079442515155DRYH
2021-07-09 00:00:06FORECAST2021287271.0755.363.185000.010.080.09FF39.07661.07194435.1785746132700.828189705232369442515155DRYH
2021-07-08 20:00:06FORECAST2021287271.0755.1163.09000.010.080.09FF39.07672.07194435.1785746132700.828189705232369442515155DRYH
2021-07-08 16:00:06FORECAST2021287270.5854.562.54000.010.080.09FF38.58673.58194435.1785746132700.815763674959319442515155DRYH
2021-07-08 12:00:06FORECAST2021287264.5449.5157.0250000.080.08FF32.54663.54194435.1785746132700.622337748325619432515225DRYL
2021-07-08 08:00:06FORECAST2021287264.449.5156.9550000.080.08FF32.4655.4194435.1785746132700.617150729023839432515225DRYL
2021-07-08 04:00:07FORECAST2021287264.449.3556.8750000.080.08FF32.4662.4194435.1785746132700.617150729023839432515225DRYL
2021-07-08 00:00:06FORECAST2021287269.3553.2461.2950000.090.09FF37.35656.35194435.1785746132700.782194608033769442515155DRYH
2021-07-07 20:00:06FORECAST2021287266.6451.2158.9250000.080.08FF34.64663.64194435.1785746132700.69705021467769432515225DRYL
2021-07-07 16:00:06FORECAST2021287266.6451.2258.930000.080.08FF34.64665.64194435.1785746132700.69705021467769432515225DRYL
2021-07-07 12:00:06FORECAST2021287261.2152.556.8550000.080.08FF29.21654.21194435.1785746132700.495077139374649422515222.5DRYL
2021-07-07 08:00:06FORECAST2021287254.1351.8452.9850000.090.09FF22.13651.13194435.1785746132700.241600829565079412515220DRYL
2021-07-07 04:00:07FORECAST2021287254.5652.9453.750000.10.1FF22.56655.56194435.1785746132700.254844743377569422515222.5DRYL