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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Monday, September 2, 2019

[ Sunday, September 1, 2019 | Index | Today | Tuesday, September 3, 2019 ]

DAY 337 OF WATER YEAR 2019, FORECAST LAST UPDATED 09/03/2019 04:00:11 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): 63.88°F
MINIMUM TEMPERATURE (Tmin): 44.83°F
AVERAGE TEMPERATURE (Tavg): 54.36°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.679
Maximum Percentile on this day is based on 94 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 32
18-DAY CUMULATIVE DD32: 545

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): 1.22 in
18-DAY TOTAL (P18): 1.22 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: 244
CALCULATED SNOW DENSITY: 463.34 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: 52

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 3
D1: 3
D2: 4
D3: 1
D4: 5
D5: 2
HSdry: 25.0

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
2019-09-03 04:00:11OBSERVATION20193375263.8799844.8300454.355010001.221.22FF31.87998544.87998244463.33603098816 00.6790573221200194 33415225DRYL
2019-09-03 00:00:12FORECAST20193375252.9752.9752.970001.221.22FF20.97533.97245463.8464037480200.274273006664789423415222.5DRYL
2019-09-02 12:00:11FORECAST20193375265.5454.2159.87500.01520.01521.221.2352FF33.54546.54245463.8464037480200.734710366397229443415227.5DRYL
2019-09-02 08:00:11FORECAST20193375262.0647.4454.7500.0080.0081.221.228FF30.06543.06245463.8464037480200.613097689246049433415225DRYL
2019-09-02 04:00:11FORECAST20193375265.8247.8956.85500.01890.01891.221.2389FF33.82546.82245463.8464037480200.743591755029649443415227.5DRYL
2019-09-02 00:00:13FORECAST20193375265.9147.8756.8900.00840.00841.221.2284FF33.91533.91244463.3360309881600.746413269814419443415227.5DRYL
2019-09-01 20:00:11FORECAST20193375264.4546.155.27500.00450.04451.221.2645FF32.45544.45244463.3360309881600.698715716030059433415225DRYL
2019-09-01 16:00:11FORECAST20193375264.447.3855.8900.00450.04451.221.2645FF32.4544.4244463.3360309881600.697013158903949433415225DRYL
2019-09-01 12:00:11FORECAST20193375264.3447.3155.82500.00760.04761.221.2676FF32.34544.34244463.3360309881600.694964432655289433415225DRYL
2019-09-01 08:00:11FORECAST20193375259.8847.3453.6100.00830.05831.221.2783FF27.88539.88244463.3360309881600.529733128321829433415225DRYL
2019-09-01 04:00:11FORECAST20193375262.7447.265500.00250.03251.221.2525FF30.74542.74244463.3360309881600.638248608221579433415225DRYL
2019-09-01 00:00:13FORECAST20193375265.3547.6856.51500.0030.0331.221.253FF33.35532.35244463.3360309881600.728596121989179443415227.5DRYL
2019-08-31 20:00:11FORECAST20193375265.1247.5756.34500.00290.03291.221.2529FF33.12543.12244463.3360309881600.721102043655789443415227.5DRYL
2019-08-31 16:00:11FORECAST20193375266.4448.1657.300.00320.03321.221.2532FF34.44544.44244463.3360309881600.76269291867629443415227.5DRYL
2019-08-31 12:00:11FORECAST20193375266.2347.8357.0300.00220.03221.221.2522FF34.23544.23244463.3360309881600.756311913080529443415227.5DRYL
2019-08-31 08:00:11FORECAST20193375266.1247.4856.800.01260.07261.221.2926FF34.12543.12244463.3360309881600.752932929268699443415227.5DRYL
2019-08-31 04:00:12FORECAST20193375266.3947.6957.0400.01370.09371.221.3137FF34.39542.39244463.3360309881600.761181991988819443425255DRYH
2019-08-31 00:00:13FORECAST20193375266.7447.1356.93500.00390.09391.171.2639FF34.74534.74244463.3360309881600.77164750349179443425255DRYH
2019-08-30 20:00:11FORECAST20193375267.0347.6757.3500.01010.11011.181.2901FF35.03548.03244463.3360309881600.78012039979269443425255DRYH
2019-08-30 16:00:11FORECAST20193375267.246.7356.96500.00990.13991.181.3199FF35.2549.2244463.3360309881600.785002354749819443425255DRYH
2019-08-30 12:00:11FORECAST20193375263.3947.0455.21500.00240.11241.181.2924FF31.39543.39244463.3360309881600.661745970639069433425250DRYMH
2019-08-30 08:00:11FORECAST20193375263.3946.7955.0900.00170.13171.181.3117FF31.39537.39244463.3360309881600.661745970639069433425250DRYMH
2019-08-30 04:00:12FORECAST20193375265.6847.3456.5100.00210.13211.191.3221FF33.68544.68244463.3360309881600.73917048070219443425255DRYH
2019-08-30 00:00:13FORECAST20193375264.1546.9555.5500.02070.16070.80.9607FF32.15532.15244463.3360309881600.688436653048729433425250DRYMH
2019-08-29 20:00:11FORECAST20193375259.2145.9352.5700.05240.18240.911.0924FF27.21539.21244463.3360309881600.503668795928339433425250DRYMH
2019-08-29 16:00:11FORECAST20193375258.5846.9552.76500.04950.17950.911.0895FF26.58534.58244463.3360309881600.479144218780069423425245DRYM
2019-08-29 12:00:12FORECAST20193375261.5546.7954.1700.03670.21670.91.1167FF29.55539.55244463.3360309881600.593911145716369433425250DRYMH
2019-08-29 08:00:10FORECAST20193375261.5746.7854.17500.03670.21670.991.2067FF29.57538.57244463.3360309881600.594668152863349433425250DRYMH
2019-08-29 04:00:11FORECAST20193375261.6146.2453.92500.03660.22660.891.1166FF29.61538.61244463.3360309881600.596181102723769433425250DRYMH
2019-08-29 00:00:13FORECAST20193375259.8746.8953.3800.07290.18290.951.1329FF27.87521.87244463.3360309881600.529344765564639433425250DRYMH
2019-08-28 20:00:11FORECAST20193375259.8946.8853.38500.07290.19290.991.1829FF27.89539.89244463.3360309881600.530121462799899433425250DRYMH
2019-08-28 16:00:11FORECAST20193375259.8947.0853.48500.07120.101211.1012FF27.89542.89244463.3360309881600.530121462799899433425250DRYMH
2019-08-28 12:00:11FORECAST20193375264.3547.5555.9500.02610.05610.910.9661FF32.35554.35244463.3360309881600.695306313655749433415225DRYL
2019-08-28 08:00:11FORECAST20193375264.6148.0856.34500.00390.01390.890.9039FF32.61549.61244463.3360309881600.704134739765139443415227.5DRYL
2019-08-28 04:00:11FORECAST20193375264.2848.2556.26500.01760.01760.90.9176FF32.28553.28244463.3360309881600.69290958319259433415225DRYL
2019-08-28 00:00:13FORECAST20193375269.748.4659.0800.00080.03080.940.9708FF37.7543.7244463.3360309881600.849285672629579453415160DRYH
2019-08-27 20:00:11FORECAST20193375269.6348.8359.2300.00080.03080.880.9108FF37.63558.63244463.3360309881600.84768043887019443415155DRYH
2019-08-27 16:00:11FORECAST20193375268.949.0258.9600.00080.03080.90.9308FF36.9554.9244463.3360309881600.830267851531339443415155DRYH
2019-08-27 12:00:11FORECAST20193375262.3646.6554.50500.0020.0220.890.912FF30.36559.36244463.3360309881600.624259388216449433415225DRYL
2019-08-27 08:00:10FORECAST20193375261.4246.253.8100.00330.01330.90.9133FF29.42544.42244463.3360309881600.588982160983089433415225DRYL
2019-08-27 04:00:12FORECAST20193375257.5145.4551.4800.04290.06290.910.9729FF25.51547.51244463.3360309881600.437720756607749423415222.5DRYL
2019-08-27 00:00:12FORECAST20193375258.6445.351.9700.02380.03380.850.8838FF26.64538.64244463.3360309881600.481477953789179423415222.5DRYL
2019-08-26 20:00:11FORECAST20193375258.6745.335200.01840.02840.830.8584FF26.67552.67244463.3360309881600.482645064378769423415222.5DRYL
2019-08-26 16:00:11FORECAST20193375259.9544.6952.3200.0020.0120.810.822FF27.95553.95244463.3360309881600.532450855208769433415225DRYL
2019-08-26 12:00:11FORECAST20193375259.1549.9954.5700.00030.00030.790.7903FF27.15563.15244463.3360309881600.501332260634259433415225DRYL
2019-08-26 08:00:11FORECAST20193375252.1250.0251.0700.00030.00030.790.7903FF20.12551.12244463.3360309881600.247326776232079413415220DRYL
2019-08-26 04:00:11FORECAST20193375253.1452.6152.87500.00020.00020.790.7902FF21.14562.14244463.3360309881600.279830932170189423415222.5DRYL