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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Saturday, July 30, 2022

[ Friday, July 29, 2022 | Index | Today | Sunday, July 31, 2022 ]

DAY 303 OF WATER YEAR 2022, FORECAST LAST UPDATED 07/31/2022 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:
H
HIGH

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 82.40°F
MINIMUM TEMPERATURE (Tmin): 64.61°F
AVERAGE TEMPERATURE (Tavg): 73.51°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.964
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: 50
18-DAY CUMULATIVE DD32: 671

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): 0.03 in
18-DAY TOTAL (P18): 0.03 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: 210
CALCULATED SNOW DENSITY: 444.78 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: 18

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 5
D1: 2
D2: 5
D3: 1
D4: 5
D5: 1
HSdry: 60.0

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
2022-07-31 04:00:06OBSERVATION20223031882.464.6100673.505030000.030.03FF50.4671.4210444.77727990492 00.9635937257618416 52515160DRYH
2022-07-31 00:00:02FORECAST20223031864.2664.2664.260000.030.03FF32.26653.26211445.3580420942700.485271430806981622515222.5DRYL
2022-07-30 12:00:01FORECAST20223031876.5466.0871.310000.030.03FF44.54665.54211445.3580420942700.885229946746641652515160DRYH
2022-07-30 08:00:02FORECAST20223031876.9565.4771.210000.030.03FF44.95665.95211445.3580420942700.893055501349031652515160DRYH
2022-07-30 04:00:06FORECAST20223031877.2565.3171.280000.030.03FF45.25666.25211445.3580420942700.898533246140911652515160DRYH
2022-07-30 00:00:03FORECAST20223031877.2865.7571.51500.00490.00490.030.0349FF45.28652.28210444.7772799049200.899069607507111652515160DRYH
2022-07-29 20:00:02FORECAST20223031877.1664.7670.9600.00080.00080.030.0308FF45.16666.16210444.7772799049200.896911752424911652515160DRYH
2022-07-29 16:00:01FORECAST20223031876.7963.9970.3900.00080.00080.030.0308FF44.79665.79210444.7772799049200.890048554200371652515160DRYH
2022-07-29 12:00:02FORECAST20223031877.2864.3270.80000.030.03FF45.28666.28210444.7772799049200.899069607507111652515160DRYH
2022-07-29 08:00:02FORECAST20223031877.1763.9870.5750000.030.03FF45.17661.17210444.7772799049200.89709283924351652515160DRYH
2022-07-29 04:00:09FORECAST20223031877.4863.9570.7150000.030.03FF45.48659.48210444.7772799049200.90259277109531652515160DRYH
2022-07-29 00:00:03FORECAST20223031878.8765.2172.040000.030.03FF46.87650.87210444.7772799049200.924627428357631652515160DRYH
2022-07-28 20:00:03FORECAST20223031878.5864.7471.660000.030.03FF46.58661.58210444.7772799049200.92037479142121652515160DRYH
2022-07-28 16:00:03FORECAST20223031878.9765.1772.070000.030.03FF46.97660.97210444.7772799049200.926053138296891652515160DRYH
2022-07-28 12:00:03FORECAST20223031878.6865.0171.8450000.030.03FF46.68661.68210444.7772799049200.921861193544731652515160DRYH
2022-07-28 08:00:03FORECAST20223031879.265.3972.2950000.030.03FF47.2661.2210444.7772799049200.92925424051641652515160DRYH
2022-07-28 04:00:08FORECAST20223031879.3965.7372.560000.030.03FF47.39659.39210444.7772799049200.931817682769891652515160DRYH
2022-07-28 00:00:03FORECAST20223031878.1364.8571.490000.030.03FF46.13648.13210444.7772799049200.913421281317141652515160DRYH
2022-07-27 20:00:03FORECAST20223031881.2265.5673.390000.030.03FF49.22662.22210444.7772799049200.952989457297721652515160DRYH
2022-07-27 16:00:03FORECAST20223031881.7664.873.280000.030.03FF49.76663.76210444.7772799049200.958114222129511652515160DRYH
2022-07-27 12:00:03FORECAST20223031878.1264.7671.440000.030.03FF46.12658.12210444.7772799049200.913261777841111652515160DRYH
2022-07-27 08:00:04FORECAST20223031878.1563.6670.9050000.030.03FF46.15655.15210444.7772799049200.913739632562361652515160DRYH
2022-07-27 04:00:08FORECAST20223031881.1964.5372.860000.030.03FF49.19656.19210444.7772799049200.952690664828831652515160DRYH
2022-07-27 00:00:04FORECAST20223031881.8263.8972.8550000.040.04FF49.82641.82210444.7772799049200.958654677766511652515160DRYH
2022-07-26 20:00:03FORECAST20223031880.5361.2470.8850000.040.04FF48.53659.53210444.7772799049200.945725316305951652515160DRYH
2022-07-26 16:00:03FORECAST20223031881.3163.6272.4650000.040.04FF49.31659.31210444.7772799049200.95387679313911652515160DRYH
2022-07-26 12:00:03FORECAST20223031883.1266.0974.60500.00470.04470.040.0847FF51.12658.12210444.7772799049200.969043914137691652515160DRYH
2022-07-26 08:00:03FORECAST20223031882.7166.2974.500.00520.04520.040.0852FF50.71652.71210444.7772799049200.966029404304051652515160DRYH
2022-07-26 04:00:07FORECAST20223031885.5465.875.6700.00710.00710.040.0471FF53.54664.54210444.7772799049200.982665935604221652515160DRYH
2022-07-26 00:00:04FORECAST20223031881.7262.9972.355000.030.050.08FF49.72653.72210444.7772799049200.957750760908281652515160DRYH
2022-07-25 20:00:04FORECAST20223031882.461.5171.955000.030.050.08FF50.4665.4210444.7772799049200.963593725761841652515160DRYH
2022-07-25 16:00:04FORECAST20223031882.3461.5171.925000.050.060.11FF50.34665.34210444.7772799049200.963106225927081652515160DRYH
2022-07-25 12:00:04FORECAST20223031877.3263.770.51000.040.070.11FF45.32662.32210444.7772799049200.899781547020551652515160DRYH
2022-07-25 08:00:05FORECAST20223031877.3263.770.51000.060.070.13FF45.32658.32210444.7772799049200.899781547020551652515160DRYH
2022-07-25 04:00:08FORECAST20223031877.2363.5370.380000.050.05FF45.23655.23210444.7772799049200.898174524151811652515160DRYH
2022-07-25 00:00:04FORECAST20223031872.559.365.90000.050.05FF40.5644.5210444.7772799049200.786373967309441642515155DRYH
2022-07-24 20:00:04FORECAST20223031872.5259.2965.9050000.050.05FF40.52658.52210444.7772799049200.786960683035051642515155DRYH
2022-07-24 16:00:04FORECAST20223031871.6758.865.2350000.050.05FF39.67657.67210444.7772799049200.761209214982171642515155DRYH
2022-07-24 12:00:04FORECAST20223031872.8759.5366.2000.010.040.05FF40.87662.87210444.7772799049200.797075404408171642515155DRYH
2022-07-24 08:00:04FORECAST20223031874.3659.166.73000.020.040.06FF42.36656.36210444.7772799049200.836833286586581642515155DRYH
2022-07-24 04:00:08FORECAST20223031874.3659.0866.72000.010.040.05FF42.36665.36210444.7772799049200.836833286586581642515155DRYH
2022-07-24 00:00:04FORECAST20223031875.160.3467.720000.030.03FF43.1667.1210444.7772799049200.854560296854391652515160DRYH
2022-07-23 20:00:04FORECAST20223031875.1460.2567.6950000.030.03FF43.14673.14210444.7772799049200.855480235356271652515160DRYH
2022-07-23 16:00:04FORECAST20223031874.5160.6167.560000.030.03FF42.51678.51210444.7772799049200.840535278557961642515155DRYH
2022-07-23 12:00:04FORECAST20223031873.1764.4568.810000.030.03FF41.17674.17210444.7772799049200.805513001831711642515155DRYH
2022-07-23 08:00:04FORECAST20223031867.0365.866.4150000.040.04FF35.03656.03210444.7772799049200.59574569906071632515225DRYL
2022-07-23 04:00:10FORECAST20223031867.0266.1666.590000.030.03FF35.02669.02210444.7772799049200.595355067639681632515225DRYL