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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Thursday, September 15, 2022

[ Wednesday, September 14, 2022 | Index | Today | Friday, September 16, 2022 ]

DAY 350 OF WATER YEAR 2022, FORECAST LAST UPDATED 09/16/2022 04:00:07 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): 45.65°F
MINIMUM TEMPERATURE (Tmin): 42.01°F
AVERAGE TEMPERATURE (Tavg): 43.83°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.160
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: 14
18-DAY CUMULATIVE DD32: 613

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): 0.01 in
DAY 4-15 (P15): 0.13 in
18-DAY TOTAL (P18): 0.14 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: 257
CALCULATED SNOW DENSITY: 469.82 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: 65

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 1
D1: 3
D2: 5
D3: 1
D4: 5
D5: 2
HSdry: 22.5

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
2022-09-16 04:00:07OBSERVATION20223506545.6499442.0099843.82996000.010.130.14FF13.64994612.64994257469.82196942943 00.1596953865964816 13515222.5DRYL
2022-09-16 00:00:02FORECAST20223506542.2342.2342.2300.00150.01150.130.1415FF10.23609.23258470.3077423924200.0988876647560751613515222.5DRYL
2022-09-15 12:00:02FORECAST20223506551.1744.447.78500.02060.03060.130.1606FF19.17618.17258470.3077423924200.29997134346211623515225DRYL
2022-09-15 08:00:02FORECAST20223506551.944.0947.99500.02520.03520.130.1652FF19.9618.9258470.3077423924200.321975378406931623515225DRYL
2022-09-15 04:00:07FORECAST20223506551.7344.4548.0900.01420.02420.130.1542FF19.73618.73258470.3077423924200.316791317238451623515225DRYL
2022-09-15 00:00:02FORECAST20223506552.1944.4448.31500.03620.03620.130.1662FF20.19616.19257469.8219694294300.330898740258251623515225DRYL
2022-09-14 20:00:02FORECAST20223506552.0744.1648.11500.02770.03770.130.1677FF20.07621.07257469.8219694294300.327194290576391623515225DRYL
2022-09-14 16:00:01FORECAST20223506552.3144.0548.1800.02360.03360.130.1636FF20.31621.31257469.8219694294300.334619810609331623515225DRYL
2022-09-14 12:00:03FORECAST20223506552.9344.548.71500.00660.01660.130.1466FF20.93621.93257469.8219694294300.354097874849521623515225DRYL
2022-09-14 08:00:03FORECAST20223506553.7544.8449.29500.00770.01770.130.1477FF21.75622.75257469.8219694294300.380449113325351623515225DRYL
2022-09-14 04:00:09FORECAST20223506553.4744.6649.06500.00490.02490.130.1549FF21.47626.47257469.8219694294300.371381502071741623515225DRYL
2022-09-14 00:00:03FORECAST20223506553.2744.3248.79500.02150.03150.130.1615FF21.27617.27257469.8219694294300.364947717914511623515225DRYL
2022-09-13 20:00:01FORECAST20223506553.342.8748.08500.00710.04710.130.1771FF21.3627.3257469.8219694294300.365910416933661623515225DRYL
2022-09-13 16:00:03FORECAST20223506553.1542.8748.0100.01630.06630.130.1963FF21.15627.15257469.8219694294300.361105479414031623515225DRYL
2022-09-13 12:00:03FORECAST20223506549.4242.8346.12500.01030.05030.130.1803FF17.42623.42257469.8219694294300.250205356232811623515225DRYL
2022-09-13 08:00:03FORECAST20223506553.5643.5648.5600.01020.06020.130.1902FF21.56629.56257469.8219694294300.374288591323771623515225DRYL
2022-09-13 04:00:08FORECAST20223506553.5743.3948.4800.00950.05950.130.1895FF21.57628.57257469.8219694294300.374612046190241623515225DRYL
2022-09-13 00:00:05FORECAST20223506554.0843.6148.84500.00220.072200.0722FF22.08615.08257469.8219694294300.391220498903451623515225DRYL
2022-09-12 20:00:03FORECAST20223506555.3343.2349.2800.00420.07420.030.1042FF23.33626.33257469.8219694294300.432715311979361623515225DRYL
2022-09-12 16:00:04FORECAST20223506557.8343.2450.53500.01240.11240.030.1424FF25.83628.83257469.8219694294300.517500856607781633525255DRYH
2022-09-12 12:00:05FORECAST20223506551.8744.1948.0300.01290.11290.030.1429FF19.87624.87257469.8219694294300.321057987200951623525250DRYMH
2022-09-12 08:00:05FORECAST20223506552.9343.7748.3500.00070.05070.070.1207FF20.93624.93257469.8219694294300.354097874849521623515225DRYL
2022-09-12 04:00:08FORECAST20223506558.6943.7751.2300.00070.06070.150.2107FF26.69628.69257469.8219694294300.54667844953791633515227.5DRYL
2022-09-12 00:00:03FORECAST20223506557.5145.151.30500.00550.08550.160.2455FF25.51611.51257469.8219694294300.506611661208741633515227.5DRYL
2022-09-11 20:00:03FORECAST20223506558.7245.5452.13000.020.240.26FF26.72622.72257469.8219694294300.547692657276871633515227.5DRYL
2022-09-11 16:00:09FORECAST20223506559.6845.5552.615000.020.150.17FF27.68628.68257469.8219694294300.579947615713251633515227.5DRYL
2022-09-11 12:00:08FORECAST20223506557.9145.7551.8300.00660.03660.160.1966FF25.91623.91257469.8219694294300.520221434229881633515227.5DRYL
2022-09-11 08:00:04FORECAST20223506553.2745.6349.4500.0090.0390.210.249FF21.27622.27257469.8219694294300.364947717914511623515225DRYL
2022-09-11 04:00:08FORECAST20223506553.2745.6349.4500.0090.0390.220.259FF21.27628.27257469.8219694294300.364947717914511623515225DRYL
2022-09-11 00:00:08FORECAST20223506559.6745.2952.4800.00290.02290.180.2029FF27.67625.67257469.8219694294300.579613992440431633515227.5DRYL
2022-09-10 20:00:04FORECAST20223506557.0644.2250.6400.00360.02360.20.2236FF25.06638.06257469.8219694294300.491292251281371623515225DRYL
2022-09-10 16:00:04FORECAST20223506557.0444.2250.6300.00360.02360.050.0736FF25.04641.04257469.8219694294300.490611519647041623515225DRYL
2022-09-10 12:00:04FORECAST20223506560.4146.5353.47000.020.040.06FF28.41640.41257469.8219694294300.604132052757041633515227.5DRYL
2022-09-10 08:00:05FORECAST20223506560.9247.2854.1000.010.030.04FF28.92640.92257469.8219694294300.620799147762131633515227.5DRYL
2022-09-10 04:00:10FORECAST20223506560.947.2954.095000.010.040.05FF28.9646.9257469.8219694294300.620149524211633515227.5DRYL
2022-09-10 00:00:05FORECAST20223506562.148.4755.28500.01190.02190.140.1619FF30.1642.1257469.8219694294300.658466656949991633515227.5DRYL
2022-09-09 20:00:07FORECAST20223506558.5848.153.3400.01180.02180.070.0918FF26.58654.58257469.8219694294300.542957132252451633515227.5DRYL
2022-09-09 16:00:04FORECAST20223506558.5848.0753.32500.01180.01180.060.0718FF26.58653.58257469.8219694294300.542957132252451633515227.5DRYL
2022-09-09 12:00:03FORECAST20223506560.6647.5154.08500.00720.00720.070.0772FF28.66653.66257469.8219694294300.612328083314441633515227.5DRYL
2022-09-09 08:00:06FORECAST20223506560.0347.5153.7700.00720.00720.070.0772FF28.03647.03257469.8219694294300.591586594477431633515227.5DRYL
2022-09-09 04:00:13FORECAST20223506559.6347.2753.4500.00910.03910.070.1091FF27.63654.63257469.8219694294300.578278929717631633515227.5DRYL
2022-09-09 00:00:07FORECAST20223506558.1148.4953.300.03960.04960.040.0896FF26.11643.11257469.8219694294300.527018481990881633515227.5DRYL
2022-09-08 20:00:06FORECAST20223506558.1151.3954.7500.03680.04680.020.0668FF26.11655.11257469.8219694294300.527018481990881633515227.5DRYL
2022-09-08 16:00:03FORECAST20223506561.4152.9757.1900.00490.004900.0049FF29.41654.41257469.8219694294300.636604316076521633515227.5DRYL
2022-09-08 12:00:05FORECAST20223506549.947.3548.62500.0350.05500.055FF17.9642.9257469.8219694294300.26340781868991623515225DRYL
2022-09-08 08:00:03FORECAST20223506549.8947.948.89500.01740.03740.020.0574FF17.89640.89257469.8219694294300.263129189004111623515225DRYL
2022-09-08 04:00:06FORECAST20223506549.9148.9349.4200.00670.02670.020.0467FF17.91644.91257469.8219694294300.263686598721951623515225DRYL