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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, October 16, 2022

[ Saturday, October 15, 2022 | Index | Today | Monday, October 17, 2022 ]

DAY 16 OF WATER YEAR 2023, FORECAST LAST UPDATED 10/17/2022 04:00:20 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): 67.66°F
MINIMUM TEMPERATURE (Tmin): 54.05°F
AVERAGE TEMPERATURE (Tavg): 60.85°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.962
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: 36
18-DAY CUMULATIVE DD32: 614

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): 0.23 in
18-DAY TOTAL (P18): 0.23 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: 78
CALCULATED SNOW DENSITY: 345.04 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: 96

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: 5
D3: 1
D4: 5
D5: 2
HSdry: 35.0

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
2022-10-17 04:00:20OBSERVATION2023169667.6599854.0560.854990000.230.23FF35.65998613.6599878345.03906033777 00.9624178262452716 54515235DRYL
2022-10-17 00:00:02FORECAST2023169654.4254.4254.4200.00160.00160.230.2316FF22.42600.4277344.0763607963800.708113378355941644515232.5DRYL
2022-10-16 12:00:02FORECAST2023169668.9756.9262.9450000.230.23FF36.97614.9777344.0763607963800.971393638590131654515170DRYH
2022-10-16 08:00:01FORECAST2023169665.1753.8359.500.00150.00150.230.2315FF33.17611.1777344.0763607963800.939113243338081654515235DRYL
2022-10-16 04:00:07FORECAST2023169666.554.260.350000.230.23FF34.5612.577344.0763607963800.952669139833121654515235DRYL
2022-10-16 00:00:03FORECAST2023169669.2252.8761.0450000.230.23FF37.22606.2278345.0390603377700.972886287263721654515170DRYH
2022-10-15 20:00:02FORECAST2023169670.4254.0562.2350000.230.23FF38.42618.4278345.0390603377700.97917762663531654515170DRYH
2022-10-15 16:00:01FORECAST2023169669.5153.9861.7450000.230.23FF37.51617.5178345.0390603377700.974535975336021654515170DRYH
2022-10-15 12:00:03FORECAST2023169669.8953.8961.890000.230.23FF37.89617.8978345.0390603377700.976569934264121654515170DRYH
2022-10-15 08:00:02FORECAST2023169670.1253.88620000.230.23FF38.12619.1278345.0390603377700.977733440177311654515170DRYH
2022-10-15 04:00:14FORECAST2023169669.9853.9361.9550000.230.23FF37.98613.9878345.0390603377700.977031158074341654515170DRYH
2022-10-15 00:00:04FORECAST2023169669.9354.3462.1350000.230.23FF37.93608.9378345.0390603377700.976775873584691654515170DRYH
2022-10-14 20:00:02FORECAST2023169670.0154.4662.2350000.230.23FF38.01624.0178345.0390603377700.9771831939011654515170DRYH
2022-10-14 16:00:04FORECAST2023169670.3454.162.220000.230.23FF38.34624.3478345.0390603377700.978800467992241654515170DRYH
2022-10-14 12:00:05FORECAST2023169669.8254.1761.9950000.230.23FF37.82623.8278345.0390603377700.976205852293681654515170DRYH
2022-10-14 08:00:04FORECAST2023169670.454.5362.4650000.230.23FF38.4624.478345.0390603377700.979083872379431654515170DRYH
2022-10-14 04:00:09FORECAST2023169669.9954.5262.2550000.230.23FF37.99624.9978345.0390603377700.977081930993971654515170DRYH
2022-10-14 00:00:04FORECAST2023169670.4155.0262.7150000.230.23FF38.41610.4178345.0390603377700.97913079397581654515170DRYH
2022-10-13 20:00:04FORECAST2023169670.5454.5562.5450000.230.23FF38.54626.5478345.0390603377700.979732727695051654515170DRYH
2022-10-13 16:00:03FORECAST2023169671.0353.8962.460000.230.23FF39.03627.0378345.0390603377700.981871239411741654515170DRYH
2022-10-13 12:00:06FORECAST2023169671.9253.7662.840000.230.23FF39.92627.9278345.0390603377700.98526639920171654515170DRYH
2022-10-13 08:00:02FORECAST2023169667.3253.9960.6550000.230.23FF35.32623.3278345.0390603377700.95974667077861654515235DRYL
2022-10-13 04:00:14FORECAST2023169672.3953.6463.0150000.230.23FF40.39625.3978345.0390603377700.986827949175181654515170DRYH
2022-10-13 00:00:03FORECAST2023169672.7654.7963.7750000.230.23FF40.76615.7678345.0390603377700.987954752124411654515170DRYH
2022-10-12 20:00:07FORECAST2023169672.7755.0863.9250000.230.23FF40.77627.7778345.0390603377700.987984010677671654515170DRYH
2022-10-12 16:00:03FORECAST2023169671.8753.8262.8450000.230.23FF39.87625.8778345.0390603377700.985091279610431654515170DRYH
2022-10-12 12:00:03FORECAST2023169670.9453.8762.4050000.230.23FF38.94624.9478345.0390603377700.981493498029241654515170DRYH
2022-10-12 08:00:04FORECAST2023169666.5754.7760.670000.230.23FF34.57616.5778345.0390603377700.953309720348961654515235DRYL
2022-10-12 04:00:09FORECAST2023169669.555662.7750000.230.23FF37.55622.5578345.0390603377700.97475679756381654515170DRYH
2022-10-12 00:00:05FORECAST2023169669.2252.6560.9350000.230.23FF37.22616.2278345.0390603377700.972886287263721654515170DRYH
2022-10-11 20:00:04FORECAST2023169669.356.2662.780000.230.23FF37.3627.378345.0390603377700.973350021979381654515170DRYH
2022-10-11 16:00:03FORECAST2023169670.3856.2163.2950000.230.23FF38.38624.3878345.0390603377700.978989761866811654515170DRYH
2022-10-11 12:00:04FORECAST2023169669.7755.2162.490000.230.23FF37.77619.7778345.0390603377700.975942898781031654515170DRYH
2022-10-11 08:00:04FORECAST2023169671.7850.0660.920000.230.23FF39.78628.7878345.0390603377700.984771560517131654515170DRYH
2022-10-11 04:00:05FORECAST2023169670.950.0460.470000.230.23FF38.9627.978345.0390603377700.981323478073191654515170DRYH
2022-10-11 00:00:11FORECAST2023169675.8354.9265.3750000.230.23FF43.83622.8378345.0390603377700.994500485727141654515170DRYH
2022-10-10 20:00:05FORECAST2023169672.1149.961.0050000.250.25FF40.11629.1178345.0390603377700.985915837103831654515170DRYH
2022-10-10 16:00:03FORECAST2023169672.1149.961.0050000.250.25FF40.11624.1178345.0390603377700.985915837103831654515170DRYH
2022-10-10 12:00:03FORECAST2023169675.5556.365.9250000.250.25FF43.55626.5578345.0390603377700.99407439630231654515170DRYH
2022-10-10 08:00:05FORECAST2023169673.8355.7664.7950000.260.26FF41.83631.8378345.0390603377700.990756308652141654515170DRYH
2022-10-10 04:00:18FORECAST2023169673.855.7664.780000.260.26FF41.8632.878345.0390603377700.990686288616911654515170DRYH
2022-10-10 00:00:07FORECAST2023169673.3954.964.1450000.270.27FF41.39636.3978345.0390603377700.989681861187131654515170DRYH
2022-10-09 20:00:05FORECAST2023169673.1555.9464.5450000.270.27FF41.15644.1578345.0390603377700.989051156258181654515170DRYH
2022-10-09 16:00:05FORECAST2023169673.1557.8265.4850000.260.26FF41.15640.1578345.0390603377700.989051156258181654515170DRYH
2022-10-09 12:00:04FORECAST2023169665.2354.6959.960000.260.26FF33.23637.2378345.0390603377700.939783816791941654515235DRYL
2022-10-09 08:00:05FORECAST2023169657.5856.2656.920000.260.26FF25.58615.5878345.0390603377700.799944379233421644515232.5DRYL
2022-10-09 04:00:05FORECAST2023169657.5657.2357.3950000.250.25FF25.56629.5678345.0390603377700.799423658244391644515232.5DRYL