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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Friday, August 14, 2020

[ Thursday, August 13, 2020 | Index | Today | Saturday, August 15, 2020 ]

DAY 319 OF WATER YEAR 2020, FORECAST LAST UPDATED 08/15/2020 12:00:02 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): 58.40°F
MINIMUM TEMPERATURE (Tmin): 58.40°F
AVERAGE TEMPERATURE (Tavg): 58.40°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.289
Maximum Percentile on this day is based on 93 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 26
18-DAY CUMULATIVE DD32: 514

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): 0.10 in
18-DAY TOTAL (P18): 0.10 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: 226
CALCULATED SNOW DENSITY: 454.36 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: 33

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 2
D1: 2
D2: 4
D3: 1
D4: 5
D5: 2
HSdry: 20.0

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
2020-08-15 00:00:02FORECAST20203193358.458.458.400.0030.0030.10.103FF26.4514.4227454.3562750870600.288905970202569322415220DRYL
2020-08-14 12:00:02FORECAST20203193371.9957.0764.5300.02210.02210.10.1221FF39.99527.99227454.3562750870600.75010957001329342415150DRYMH
2020-08-14 08:00:02FORECAST20203193367.6247.8457.7300.01510.01510.10.1151FF35.62523.62227454.3562750870600.609818624230329332415222.5DRYL
2020-08-14 04:00:04FORECAST20203193371.944.658.2500.00640.00640.10.1064FF39.9527.9227454.3562750870600.747511181819469342415150DRYMH
2020-08-14 00:00:02FORECAST20203193372.3944.8658.62500.00610.00610.10.1061FF40.39517.39226453.8097712326900.761484394713729342415150DRYMH
2020-08-13 20:00:02FORECAST20203193372.2945.5258.90500.00340.01340.10.1134FF40.29534.29226453.8097712326900.758667494274149342415150DRYMH
2020-08-13 16:00:03FORECAST20203193372.2345.458.81500.00380.01380.10.1138FF40.23534.23226453.8097712326900.75696873021389342415150DRYMH
2020-08-13 12:00:03FORECAST20203193371.845.6858.7400.0010.0110.10.111FF39.8533.8226453.8097712326900.744607496129099342415150DRYMH
2020-08-13 07:51:54FORECAST20203193371.4345.8258.62500.00050.02050.10.1205FF39.43528.43226453.8097712326900.733714245473049342415150DRYMH
2020-08-13 04:00:03FORECAST20203193371.5145.758.60500.00090.01090.10.1109FF39.51533.51226453.8097712326900.73608929117829342415150DRYMH
2020-08-13 00:00:03FORECAST20203193371.2345.458.31500.00110.01110.10.1111FF39.23528.23226453.8097712326900.727729742039799342415150DRYMH
2020-08-12 20:00:04FORECAST20203193370.8344.9357.8800.00130.02130.10.1213FF38.83540.83226453.8097712326900.715564001390469342415150DRYMH
2020-08-12 16:00:04FORECAST20203193370.4744.8257.64500.00140.02140.10.1214FF38.47540.47226453.8097712326900.704397752486259342415150DRYMH
2020-08-12 12:00:02FORECAST20203193369.4844.1156.79500.00120.02120.10.1212FF37.48539.48226453.8097712326900.672700756796659332415145DRYM
2020-08-12 08:00:03FORECAST20203193369.7644.1856.9700.00110.01110.10.1111FF37.76540.76226453.8097712326900.681805936255949332415145DRYM
2020-08-12 04:00:02FORECAST20203193369.2844.0256.6500.00160.02160.10.1216FF37.28539.28226453.8097712326900.666133193429239332415145DRYM
2020-08-12 00:00:04FORECAST20203193368.9144.4256.66500.00210.02210.110.1321FF36.91521.91226453.8097712326900.653849414828469332415145DRYM
2020-08-11 19:52:16FORECAST20203193367.9444.6656.300.00140.01140.120.1314FF35.94540.94226453.8097712326900.620898564340019332415222.5DRYL
2020-08-11 16:00:03FORECAST20203193367.6244.7656.1900.00170.01170.120.1317FF35.62540.62226453.8097712326900.609818624230329332415222.5DRYL
2020-08-11 12:00:02FORECAST20203193360.9943.9452.46500.00060.01060.120.1306FF28.99533.99226453.8097712326900.37376580266859322415220DRYL
2020-08-11 08:00:03FORECAST20203193362.0844.1553.11500.00090.01090.110.1209FF30.08538.08226453.8097712326900.411716814954899322415220DRYL
2020-08-11 04:00:03FORECAST20203193367.9544.4156.1800.00140.01140.140.1514FF35.95541.95226453.8097712326900.621243270267649332415222.5DRYL
2020-08-11 00:00:02FORECAST20203193373.444.6159.00500.0020.0120.120.132FF41.4534.4226453.8097712326900.788904669631789342415150DRYMH
2020-08-10 20:00:02FORECAST20203193373.4144.5358.9700.00230.01230.130.1423FF41.41553.41226453.8097712326900.789166600156359342415150DRYMH
2020-08-10 16:00:03FORECAST20203193373.9545.2959.6200.00180.00180.130.1318FF41.95553.95226453.8097712326900.803026344447619342415150DRYMH
2020-08-10 12:00:03FORECAST20203193369.0944.6456.86500.00140.02140.120.1414FF37.09547.09226453.8097712326900.659846506416169332415145DRYM
2020-08-10 08:00:03FORECAST20203193369.144.6456.8700.00140.02140.110.1314FF37.1546.1226453.8097712326900.660178513303429332415145DRYM
2020-08-10 04:00:04FORECAST20203193370.0245.0657.5400.00140.00140.120.1214FF38.02551.02226453.8097712326900.690163716446719332415145DRYM
2020-08-10 00:00:02FORECAST20203193368.2645.3456.800.00290.00290.130.1329FF36.26549.26226453.8097712326900.631880087022629332415145DRYM
2020-08-09 20:00:03FORECAST20203193368.2845.3456.8100.00290.00290.110.1129FF36.28563.28226453.8097712326900.632562974475369332415145DRYM
2020-08-09 16:00:03FORECAST20203193370.1545.0957.6200.00280.00280.110.1128FF38.15564.15226453.8097712326900.694306420640269332415145DRYM
2020-08-09 12:00:03FORECAST20203193371.4545.7158.5800.00160.00160.110.1116FF39.45559.45226453.8097712326900.734309018249519342415150DRYMH
2020-08-09 08:00:02FORECAST20203193371.4645.7158.58500.00160.00160.120.1216FF39.46551.46226453.8097712326900.734606152169029342415150DRYMH
2020-08-09 04:04:12FORECAST20203193371.0745.8558.4600.00750.00750.110.1175FF39.07565.07226453.8097712326900.722894556713429342415150DRYMH
2020-08-09 00:00:05FORECAST20203193369.9146.3558.1300.00140.00140.120.1214FF37.91559.91226453.8097712326900.686639377489869332415145DRYM
2020-08-08 20:00:02FORECAST20203193369.9246.3558.13500.00140.00140.150.1514FF37.92573.92226453.8097712326900.686960483059189332415145DRYM
2020-08-08 16:00:02FORECAST20203193369.3945.7157.5500.00140.00140.150.1514FF37.39573.39226453.8097712326900.669751808323869332415145DRYM
2020-08-08 12:00:03FORECAST20203193362.0841.8351.95500.00740.27740.150.4274FF30.08552.08226453.8097712326900.411716814954899322425240DRYM
2020-08-08 07:52:27FORECAST20203193362.1141.8251.96500.00740.27740.140.4174FF30.11553.11226453.8097712326900.412774913689969322425240DRYM
2020-08-08 04:00:05FORECAST20203193362.242.3952.29500.00740.27740.130.4074FF30.2560.2226453.8097712326900.41595298427649322425240DRYM
2020-08-08 00:00:03FORECAST20203193363.6841.6652.6700.00260.08260.10.1826FF31.68558.68226453.8097712326900.468852162967389322415220DRYL
2020-08-07 20:00:02FORECAST20203193363.6841.6452.6600.00240.08240.130.2124FF31.68571.68226453.8097712326900.468852162967389322415220DRYL
2020-08-07 16:00:02FORECAST20203193364.9242.4753.69500.00130.16130.120.2813FF32.92575.92226453.8097712326900.51364127796239332425245DRYM
2020-08-07 12:00:03FORECAST20203193355.1242.6448.8800.00110.00110.110.1111FF23.12561.12226453.8097712326900.19659401724159312415217.5DRYL
2020-08-07 10:55:14FORECAST20203193351.5742.6447.10500.00080.00080.10.1008FF19.57556.57226453.8097712326900.119842143689459312415217.5DRYL
2020-08-07 08:00:03FORECAST20203193343.5142.6243.0650000.10.1FF11.51543.51226453.8097712326900.0281767705905169312415217.5DRYL
2020-08-07 04:00:03FORECAST20203193341.0439.8740.45500.00410.15410.110.2641FF9.04540.04226453.8097712326900.0164491386260499312425235DRYL