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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, October 19, 2022

[ Tuesday, October 18, 2022 | Index | Today | Thursday, October 20, 2022 ]

DAY 19 OF WATER YEAR 2023, FORECAST LAST UPDATED 10/20/2022 04:00:14 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:
M
MEDIUM

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 68.62°F
MINIMUM TEMPERATURE (Tmin): 55.76°F
AVERAGE TEMPERATURE (Tavg): 62.19°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.985
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: 650

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: 75
CALCULATED SNOW DENSITY: 348.91 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: 99

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: 3
D5: 1
HSdry: 42.0

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
2022-10-20 04:00:14OBSERVATION2023199968.6199255.7662.1899610.56100250000FF36.61992649.6199275348.90949936838 3.68483409510320.9847078438793616 54513142DRYM
2022-10-20 00:00:02FORECAST2023199955.0655.0655.067.87393866666670.00080.000800.0008FF23.06636.0674346.249835275532.7263499663030.785370938669291644513219.5DRYL
2022-10-19 12:00:02FORECAST2023199970.156.7163.4057.83066266666670000FF38.1651.174346.222172107352.71114903749330.989630893248121654513142DRYM
2022-10-19 09:05:59FORECAST2023199970.0956.7663.4257.4847320.00050.000500.0005FF38.09651.0974346.000934704812.5897242680150.989602923949231654513142DRYM
2022-10-19 08:00:01FORECAST2023199969.8952.2961.097.30996266666670000FF37.89650.8974345.889088333012.52843632252170.989029581782331654513142DRYM
2022-10-19 04:00:15FORECAST2023199966.6255.9661.296.828905250000FF34.62647.6274345.580971565522.35993971102390.974974113491141654514228DRYL
2022-10-19 00:00:12FORECAST2023199970.654.4562.52500.00050.000500.0005FF38.6637.675342.1399521059800.990948348958281654515170DRYH
2022-10-18 20:00:01FORECAST2023199970.6355.9363.2800000FF38.63650.6375342.1399521059800.991022517670041654515170DRYH
2022-10-18 16:00:01FORECAST2023199970.6455.8963.26500000FF38.64650.6475342.1399521059800.991047122104681654515170DRYH
2022-10-18 14:52:25FORECAST2023199970.5856.0163.29500000FF38.58650.5875342.1399521059800.990898605811551654515170DRYH
2022-10-18 14:49:42FORECAST2023199970.5856.0163.29500000FF38.58650.5875342.1399521059800.990898605811551654515170DRYH
2022-10-18 12:00:02FORECAST2023199970.5355.5863.05500000FF38.53650.5375342.1399521059800.990773200433871654515170DRYH
2022-10-18 08:00:02FORECAST2023199970.655.9863.2900000FF38.6650.675342.1399521059800.990948348958281654515170DRYH
2022-10-18 04:00:03FORECAST2023199971.1256.1663.6400000FF39.12649.1275342.1399521059800.992160808436871654515170DRYH
2022-10-18 00:00:03FORECAST2023199971.2256.2863.7500000FF39.22634.2275342.1399521059800.992376862967471654515170DRYH
2022-10-17 20:00:03FORECAST2023199971.1856.3463.7600000FF39.18652.1875342.1399521059800.992291077964191654515170DRYH
2022-10-17 16:00:02FORECAST2023199970.4256.0263.2200000FF38.42651.4275342.1399521059800.990491978915691654515170DRYH
2022-10-17 12:00:08FORECAST2023199970.4256.0663.2400000FF38.42651.4275342.1399521059800.990491978915691654515170DRYH
2022-10-17 08:00:06FORECAST2023199970.7256.1463.4300000FF38.72648.7275342.1399521059800.991241841842121654515170DRYH
2022-10-17 04:00:24FORECAST2023199971.2456.3363.78500000FF39.24650.2475342.1399521059800.992419439647721654515170DRYH
2022-10-17 00:00:05FORECAST2023199971.3256.5663.9400000FF39.32637.3275342.1399521059800.992587660839941654515170DRYH
2022-10-16 20:00:03FORECAST2023199973.0356.8164.9200000FF41.03653.0375342.1399521059800.995477635221621654515170DRYH
2022-10-16 16:00:04FORECAST2023199972.6156.8264.71500000FF40.61654.6175342.1399521059800.99488103137251654515170DRYH
2022-10-16 12:00:05FORECAST2023199972.6254.7863.700000FF40.62649.6275342.1399521059800.994896013403321654515170DRYH
2022-10-16 08:00:04FORECAST2023199969.2756.2362.7500000FF37.27646.2775342.1399521059800.98707424222761654515170DRYH
2022-10-16 04:00:07FORECAST2023199972.5655.1763.86500000FF40.56651.5675342.1399521059800.994805532563141654515170DRYH
2022-10-16 00:00:04FORECAST2023199972.6655.4764.06500000FF40.66644.6675342.1399521059800.994955551969011654515170DRYH
2022-10-15 20:00:04FORECAST2023199973.1654.5763.86500000FF41.16659.1675342.1399521059800.995649278807221654515170DRYH
2022-10-15 16:00:03FORECAST2023199973.0556.3564.700000FF41.05658.0575342.1399521059800.995504429390331654515170DRYH
2022-10-15 12:00:05FORECAST2023199972.6355.4964.0600000FF40.63656.6375342.1399521059800.994910956392251654515170DRYH
2022-10-15 08:00:03FORECAST2023199969.1255.2462.1800000FF37.12650.1275342.1399521059800.986558271506171654515170DRYH
2022-10-15 04:00:16FORECAST2023199969.1355.2462.18500000FF37.13649.1375342.1399521059800.986593213723931654515170DRYH
2022-10-15 00:00:06FORECAST2023199971.9553.0262.48500000FF39.95647.9575342.1399521059800.993801450780281654515170DRYH
2022-10-14 20:00:04FORECAST2023199971.9554.1463.04500000FF39.95662.9575342.1399521059800.993801450780281654515170DRYH
2022-10-14 16:00:07FORECAST2023199971.5454.1662.8500000FF39.54662.5475342.1399521059800.99303343479191654515170DRYH
2022-10-14 12:00:06FORECAST2023199971.5855.6763.62500000FF39.58663.5875342.1399521059800.993111893270071654515170DRYH
2022-10-14 08:00:04FORECAST2023199971.4255.863.6100000FF39.42660.4275342.1399521059800.992793308453591654515170DRYH
2022-10-14 04:00:10FORECAST2023199971.5555.863.67500000FF39.55661.5575342.1399521059800.993053122977821654515170DRYH
2022-10-14 00:00:05FORECAST2023199969.9754.8762.4200000FF37.97647.9775342.1399521059800.989262134818041654515170DRYH
2022-10-13 20:00:05FORECAST2023199971.6256.464.0100000FF39.62669.6275342.1399521059800.99318957083981654515170DRYH
2022-10-13 16:00:04FORECAST2023199971.5656.4163.98500000FF39.56668.5675342.1399521059800.993072762051491654515170DRYH
2022-10-13 12:00:08FORECAST2023199969.3653.3961.37500000FF37.36664.3675342.1399521059800.987375543141821654515170DRYH
2022-10-13 08:00:02FORECAST2023199968.5352.560.51500000FF36.53654.5375342.1399521059800.984352925112881654515170DRYH
2022-10-13 04:00:17FORECAST2023199968.552.560.500000FF36.5659.575342.1399521059800.984232954614941654515170DRYH
2022-10-13 00:00:04FORECAST2023199969.2953.9261.60500000FF37.29654.2975342.1399521059800.987141729302261654515170DRYH
2022-10-12 20:00:07FORECAST2023199967.6153.6960.6500000FF35.61662.6175342.1399521059800.980298195977651654515235DRYL
2022-10-12 16:00:03FORECAST2023199967.6353.7160.6700000FF35.63660.6375342.1399521059800.980395002893971654515235DRYL
2022-10-12 12:00:04FORECAST2023199957.6749.5853.62500000FF25.67641.6775342.1399521059800.85404550629971654515235DRYL
2022-10-12 08:00:05FORECAST2023199951.7750.0850.92500000FF19.77628.7775342.1399521059800.676695156125451634515230DRYL
2022-10-12 04:00:10FORECAST2023199951.7750.9551.3600000FF19.77634.7775342.1399521059800.676695156125451634515230DRYL