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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Tuesday, September 27, 2022

[ Monday, September 26, 2022 | Index | Today | Wednesday, September 28, 2022 ]

DAY 362 OF WATER YEAR 2022, FORECAST LAST UPDATED 09/28/2022 04:00:22 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): 71.60°F
MINIMUM TEMPERATURE (Tmin): 55.65°F
AVERAGE TEMPERATURE (Tavg): 63.63°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.923
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: 40
18-DAY CUMULATIVE DD32: 515

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): 0.19 in
18-DAY TOTAL (P18): 0.19 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: 269
CALCULATED SNOW DENSITY: 475.53 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: 77

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: 4
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
2022-09-28 04:00:22OBSERVATION20223627771.655.6500263.625010000.190.19FF39.6514.6269475.53116862601 00.9230506567737916 54415165DRYH
2022-09-28 00:00:02FORECAST20223627757.4357.4357.430000.190.19FF25.43500.43270475.9952878003100.59441094375711634415227.5DRYL
2022-09-27 12:00:01FORECAST20223627770.3254.2962.3050000.190.19FF38.32513.32270475.9952878003100.906334583147161654415165DRYH
2022-09-27 08:00:02FORECAST20223627769.2955.0962.190000.190.19FF37.29512.29270475.9952878003100.891052960636011654415165DRYH
2022-09-27 04:00:08FORECAST20223627769.6555.2262.4350000.190.19FF37.65512.65270475.9952878003100.896585150776171654415165DRYH
2022-09-27 00:00:02FORECAST20223627769.5454.7762.1550000.190.19FF37.54498.54269475.5311686260100.894916764173041654315160DRYH
2022-09-26 20:00:01FORECAST20223627769.8154.5762.190000.190.19FF37.81510.81269475.5311686260100.898977554231071654415165DRYH
2022-09-26 16:00:01FORECAST20223627769.4854.7362.1050000.190.19FF37.48510.48269475.5311686260100.893998592476151654415165DRYH
2022-09-26 12:00:04FORECAST20223627769.6354.4562.040000.190.19FF37.63510.63269475.5311686260100.896283241964761654415165DRYH
2022-09-26 08:00:02FORECAST20223627769.1653.7961.4750000.190.19FF37.16510.16269475.5311686260100.889004020185921654415165DRYH
2022-09-26 04:00:09FORECAST20223627768.925461.460000.190.19FF36.92507.92269475.5311686260100.885149380501391654415165DRYH
2022-09-26 00:00:05FORECAST2022362776954.2361.6150000.190.19FF37496269475.5311686260100.886444668530391654315160DRYH
2022-09-25 20:00:03FORECAST20223627768.6154.6161.610000.190.19FF36.61506.61269475.5311686260100.880031280620091654415165DRYH
2022-09-25 16:00:02FORECAST20223627769.9755.5462.7550000.190.19FF37.97506.97269475.5311686260100.901329489710751654415165DRYH
2022-09-25 12:00:03FORECAST20223627769.9355.6462.7850000.190.19FF37.93506.93269475.5311686260100.900745285211191654415165DRYH
2022-09-25 08:00:04FORECAST20223627769.8455.3762.6050000.190.19FF37.84507.84269475.5311686260100.899421616701231654415165DRYH
2022-09-25 04:00:12FORECAST20223627769.7555.3562.550000.190.19FF37.75505.75269475.5311686260100.898085159369971654415165DRYH
2022-09-25 00:00:03FORECAST2022362777054.6562.3250000.190.19FF38498269475.5311686260100.90176599400341654315160DRYH
2022-09-24 20:00:03FORECAST20223627770.5354.5762.550000.190.19FF38.53507.53269475.5311686260100.909246537253231654415165DRYH
2022-09-24 16:00:06FORECAST20223627770.5854.362.440000.190.19FF38.58507.58269475.5311686260100.909929884066181654415165DRYH
2022-09-24 12:00:06FORECAST20223627772.9455.1564.0450000.190.19FF40.94509.94269475.5311686260100.938020515479081654415165DRYH
2022-09-24 08:00:03FORECAST20223627769.4556.0762.760000.190.19FF37.45504.45269475.5311686260100.893537345828821654415165DRYH
2022-09-24 04:00:08FORECAST20223627773.1156.0764.590000.190.19FF41.11506.11269475.5311686260100.939745441811361654415165DRYH
2022-09-24 00:00:04FORECAST20223627772.6454.9563.7950000.190.19FF40.64494.64269475.5311686260100.934883140439681654315160DRYH
2022-09-23 20:00:02FORECAST20223627772.1355.7163.920000.190.19FF40.13505.13269475.5311686260100.929269538082431654415165DRYH
2022-09-23 16:00:06FORECAST20223627773.2656.0264.640000.190.19FF41.26504.26269475.5311686260100.941236127922821654415165DRYH
2022-09-23 12:00:03FORECAST20223627771.0656.1563.6050000.190.19FF39.06502.06269475.5311686260100.916297171161921654415165DRYH
2022-09-23 08:00:02FORECAST20223627770.1756.3863.2750000.190.19FF38.17497.17269475.5311686260100.904212910532251654315160DRYH
2022-09-23 04:00:10FORECAST20223627772.5456.2164.3750000.190.19FF40.54498.54269475.5311686260100.93381048945671654315160DRYH
2022-09-23 00:00:04FORECAST20223627770.3655.0362.6950000.210.21FF38.36488.36269475.5311686260100.906894477364031654315160DRYH
2022-09-22 20:00:05FORECAST20223627769.9654.462.180000.220.22FF37.96499.96269475.5311686260100.901183674302221654415165DRYH
2022-09-22 16:00:04FORECAST20223627770.0454.362.170000.210.21FF38.04501.04269475.5311686260100.902345804385121654415165DRYH
2022-09-22 12:00:06FORECAST20223627773.8857.4965.6850000.210.21FF41.88503.88269475.5311686260100.94709366842491654415165DRYH
2022-09-22 08:00:04FORECAST20223627773.0656.4964.7750000.20.2FF41.06494.06269475.5311686260100.939242043629181654315160DRYH
2022-09-22 04:00:09FORECAST20223627773.0155.7564.380000.20.2FF41.01499.01269475.5311686260100.938735373574681654415165DRYH
2022-09-22 00:00:04FORECAST20223627769.5251.5260.520000.210.21FF37.52487.52269475.5311686260100.894611346622921654315160DRYH
2022-09-21 20:00:04FORECAST20223627769.4851.4360.4550000.190.19FF37.48504.48269475.5311686260100.893998592476151654415165DRYH
2022-09-21 16:00:05FORECAST20223627769.6651.0960.3750000.20.2FF37.66505.66269475.5311686260100.896735866515471654415165DRYH
2022-09-21 12:00:05FORECAST20223627771.1753.5462.3550000.190.19FF39.17507.17269475.5311686260100.917707686814351654415165DRYH
2022-09-21 08:00:04FORECAST20223627771.0453.662.320000.190.19FF39.04505.04269475.5311686260100.916038780502451654415165DRYH
2022-09-21 04:00:13FORECAST2022362777153.662.30000.190.19FF39508269475.5311686260100.915520209119611654415165DRYH
2022-09-21 00:00:05FORECAST20223627768.7352.3960.560000.190.19FF36.73487.73269475.5311686260100.882031172932181654315160DRYH
2022-09-20 20:00:04FORECAST20223627764.3854.2359.30500.02340.02340.190.2134FF32.38496.38269475.5311686260100.794110620754221644315227.5DRYL
2022-09-20 16:00:04FORECAST20223627764.3454.2359.28500.0120.0120.190.202FF32.34495.34269475.5311686260100.793155123033971644315227.5DRYL
2022-09-20 12:00:04FORECAST20223627764.8654.7259.790000.20.2FF32.86492.86269475.5311686260100.80537144305091644315227.5DRYL
2022-09-20 08:00:05FORECAST20223627756.135354.5650000.20.2FF24.13474.13269475.5311686260100.551748801025051634315225DRYL
2022-09-20 04:00:12FORECAST20223627756.1454.4555.2950000.210.21FF24.14483.14269475.5311686260100.552079931404641634315225DRYL