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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Monday, October 17, 2022

[ Sunday, October 16, 2022 | Index | Today | Tuesday, October 18, 2022 ]

DAY 17 OF WATER YEAR 2023, FORECAST LAST UPDATED 10/18/2022 04:00:03 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): 68.65°F
MINIMUM TEMPERATURE (Tmin): 52.34°F
AVERAGE TEMPERATURE (Tavg): 60.49°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.980
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: 37
18-DAY CUMULATIVE DD32: 637

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): 0.00 in
18-DAY TOTAL (P18): 0.00 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: 77
CALCULATED SNOW DENSITY: 344.08 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: 97

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: 1
HSdry: 70.0

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
2022-10-18 04:00:03OBSERVATION2023179768.6499852.3460.4949900000FF36.64998636.6499877344.07636079638 00.9802952918053916 54515170DRYH
2022-10-18 00:00:02FORECAST2023179752.2352.2352.2300000FF20.23620.2376343.1099960372200.677077483967211634515230DRYL
2022-10-17 12:00:03FORECAST2023179770.2353.3561.7900.00220.002200.0022FF38.23638.2376343.1099960372200.986602074189761654515170DRYH
2022-10-17 08:00:02FORECAST2023179766.5753.5160.0400.00190.001900.0019FF34.57634.5776343.1099960372200.968311706764911654515235DRYL
2022-10-17 04:00:22FORECAST2023179767.4652.4759.96500.00190.001900.0019FF35.46635.4676343.1099960372200.974023604138231654515235DRYL
2022-10-17 00:00:03FORECAST2023179767.5853.7360.65500.00130.001300.0013FF35.58621.5877344.0763607963800.974723563098181654515235DRYL
2022-10-16 20:00:02FORECAST2023179767.3553.560.42500000FF35.35636.3577344.0763607963800.973367838520191654515235DRYL
2022-10-16 16:00:02FORECAST2023179767.5554.3560.9500000FF35.55636.5577344.0763607963800.974550068096131654515235DRYL
2022-10-16 12:00:03FORECAST2023179767.7454.761.2200000FF35.74636.7477344.0763607963800.975632258257111654515235DRYL
2022-10-16 08:00:03FORECAST2023179767.9655.1561.55500000FF35.96632.9677344.0763607963800.976836904795011654515235DRYL
2022-10-16 04:00:07FORECAST2023179767.835561.41500000FF35.83634.8377344.0763607963800.976131265209991654515235DRYL
2022-10-16 00:00:03FORECAST2023179767.954.6361.26500000FF35.9627.977344.0763607963800.976513432594741654515235DRYL
2022-10-15 20:00:03FORECAST2023179767.8754.6161.2400000FF35.87639.8777344.0763607963800.976350280038081654515235DRYL
2022-10-15 16:00:02FORECAST2023179767.9154.4361.1700000FF35.91639.9177344.0763607963800.976567606431741654515235DRYL
2022-10-15 12:00:04FORECAST2023179767.5154.360.90500000FF35.51639.5177344.0763607963800.974317194926561654515235DRYL
2022-10-15 08:00:03FORECAST2023179767.7154.5161.1100000FF35.71640.7177344.0763607963800.975463993060961654515235DRYL
2022-10-15 04:00:14FORECAST2023179767.8854.5961.23500000FF35.88635.8877344.0763607963800.976404769549021654515235DRYL
2022-10-15 00:00:05FORECAST2023179767.9254.4161.16500000FF35.92630.9277344.0763607963800.976621675346191654515235DRYL
2022-10-14 20:00:03FORECAST2023179769.3353.9561.6400000FF37.33647.3377344.0763607963800.983265398217281654515170DRYH
2022-10-14 16:00:05FORECAST2023179769.0253.7961.40500000FF37.02647.0277344.0763607963800.981962501827191654515170DRYH
2022-10-14 12:00:05FORECAST2023179769.853.4961.64500000FF37.8647.877344.0763607963800.985087153980991654515170DRYH
2022-10-14 08:00:04FORECAST2023179770.2253.786200000FF38.22648.2277344.0763607963800.986568410469541654515170DRYH
2022-10-14 04:00:09FORECAST2023179770.2252.6961.45500000FF38.22649.2277344.0763607963800.986568410469541654515170DRYH
2022-10-14 00:00:05FORECAST2023179770.3653.8762.11500000FF38.36634.3677344.0763607963800.987033125926681654515170DRYH
2022-10-13 20:00:05FORECAST2023179771.4154.8663.13500000FF39.41652.4177344.0763607963800.990096601647831654515170DRYH
2022-10-13 16:00:03FORECAST2023179770.4754.462.43500000FF38.47651.4777344.0763607963800.987388458263051654515170DRYH
2022-10-13 12:00:06FORECAST2023179770.0650.2460.1500000FF38.06652.0677344.0763607963800.986019792233461654515170DRYH
2022-10-13 08:00:02FORECAST2023179766.5250.4558.48500000FF34.52643.5277344.0763607963800.967962287384081654515235DRYL
2022-10-13 04:00:15FORECAST2023179769.5750.4560.0100000FF37.57648.5777344.0763607963800.984218103211681654515170DRYH
2022-10-13 00:00:03FORECAST2023179770.353.1361.71500000FF38.3640.377344.0763607963800.986835689701081654515170DRYH
2022-10-12 20:00:07FORECAST2023179769.0853.3761.22500000FF37.08651.0877344.0763607963800.98222120537551654515170DRYH
2022-10-12 16:00:03FORECAST2023179769.0753.3861.22500000FF37.07649.0777344.0763607963800.982178308783081654515170DRYH
2022-10-12 12:00:03FORECAST2023179767.4949.758.59500000FF35.49646.4977344.0763607963800.974200092781131654515235DRYL
2022-10-12 08:00:04FORECAST2023179766.8349.2458.03500000FF34.83637.8377344.0763607963800.970078423300771654515235DRYL
2022-10-12 04:00:09FORECAST2023179766.7749.2458.00500000FF34.77643.7777344.0763607963800.969678123048621654515235DRYL
2022-10-12 00:00:05FORECAST2023179765.652.0258.8100000FF33.6635.677344.0763607963800.960946957863221654515235DRYL
2022-10-11 20:00:04FORECAST2023179765.6251.758.6600000FF33.62646.6277344.0763607963800.96111174757481654515235DRYL
2022-10-11 16:00:03FORECAST2023179768.5653.6661.1100000FF36.56646.5677344.0763607963800.979870684548451654515170DRYH
2022-10-11 12:00:04FORECAST2023179763.4749.9856.72500000FF31.47637.4777344.0763607963800.939892968856791654515235DRYL
2022-10-11 08:00:04FORECAST2023179769.7853.5561.66500000FF37.78652.7877344.0763607963800.985013250534461654515170DRYH
2022-10-11 04:00:05FORECAST2023179770.4352.4961.4600000FF38.43652.4377344.0763607963800.987260232398071654515170DRYH
2022-10-11 00:00:12FORECAST2023179772.4256.0664.2400000FF40.42649.4277344.0763607963800.9924272882171654515170DRYH
2022-10-10 20:00:05FORECAST2023179771.0353.4962.260000.020.02FF39.03654.0377344.0763607963800.989069827498091654515170DRYH
2022-10-10 16:00:03FORECAST2023179771.0353.4962.260000.020.02FF39.03649.0377344.0763607963800.989069827498091654515170DRYH
2022-10-10 12:00:03FORECAST2023179763.3653.5558.4550000.020.02FF31.36644.3677344.0763607963800.93860220794841654515235DRYL
2022-10-10 08:00:05FORECAST2023179756.8554.7955.820000.030.03FF24.85642.8577344.0763607963800.818320319709771644515232.5DRYL
2022-10-10 04:00:18FORECAST2023179756.8555.8956.370000.030.03FF24.85643.8577344.0763607963800.818320319709771644515232.5DRYL