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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Saturday, August 24, 2019

[ Friday, August 23, 2019 | Index | Today | Sunday, August 25, 2019 ]

DAY 328 OF WATER YEAR 2019, FORECAST LAST UPDATED 08/25/2019 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:
M
MEDIUM

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 57.09°F
MINIMUM TEMPERATURE (Tmin): 43.63°F
AVERAGE TEMPERATURE (Tavg): 50.36°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.384
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: 25
18-DAY CUMULATIVE DD32: 529

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): 0.27 in
DAY 4-15 (P15): 1.11 in
18-DAY TOTAL (P18): 1.38 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: 235
CALCULATED SNOW DENSITY: 458.65 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: 43

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 2
D1: 3
D2: 4
D3: 2
D4: 5
D5: 2
HSdry: 45.0

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
2019-08-25 04:00:11OBSERVATION20193284357.0900243.6299850.36000.271.111.38FF25.09002529.09002235458.65434269338 00.3841016223794493 23425245DRYM
2019-08-25 00:00:12FORECAST20193284348.6948.6948.69000.271.111.38FF16.69520.69236459.1824721097400.148726494634919313425240DRYM
2019-08-24 12:00:11FORECAST20193284359.9946.7353.3600.02550.29551.111.4055FF27.99531.99236459.1824721097400.485306869374379323425245DRYM
2019-08-24 08:00:11FORECAST20193284359.4746.9353.200.02740.29741.111.4074FF27.47531.47236459.1824721097400.466893698458949323425245DRYM
2019-08-24 04:00:11FORECAST20193284357.946.8452.3700.02840.29841.111.4084FF25.9529.9236459.1824721097400.411885899238629323425245DRYM
2019-08-24 00:00:13FORECAST20193284359.5346.8353.1800.04310.31311.111.4231FF27.53516.53235458.6543426933800.469015433252529323425245DRYM
2019-08-23 20:00:11FORECAST20193284358.9146.6152.7600.05680.34681.111.4568FF26.91532.91235458.6543426933800.447144188516339323425245DRYM
2019-08-23 16:00:11FORECAST20193284354.0646.4250.2400.05310.34311.111.4531FF22.06528.06235458.6543426933800.286313436047799323425245DRYM
2019-08-23 12:00:11FORECAST20193284359.6546.8353.2400.03620.32621.111.4362FF27.65533.65235458.6543426933800.473261483642039323425245DRYM
2019-08-23 08:00:11FORECAST20193284359.5747.0153.2900.04760.34761.111.4576FF27.57532.57235458.6543426933800.470430415875219323425245DRYM
2019-08-23 04:00:11FORECAST20193284358.9346.5152.7200.05460.34461.111.4546FF26.93527.93235458.6543426933800.44784757091479323425245DRYM
2019-08-23 00:00:15FORECAST20193284358.7246.352.5100.06670.06671.111.1767FF26.72529.72235458.6543426933800.440470653242199323415222.5DRYL
2019-08-22 20:00:11FORECAST20193284358.0746.5852.32500.02710.03711.111.1471FF26.07541.07235458.6543426933800.417778945491789323415222.5DRYL
2019-08-22 16:00:11FORECAST20193284357.7846.8452.3100.02510.03511.111.1451FF25.78540.78235458.6543426933800.407737949158359323415222.5DRYL
2019-08-22 12:00:11FORECAST20193284357.8646.7752.31500.01580.02581.111.1358FF25.86539.86235458.6543426933800.410502130687439323415222.5DRYL
2019-08-22 08:00:11FORECAST20193284358.3647.0252.6900.02220.03221.111.1422FF26.36535.36235458.6543426933800.427873825845599323415222.5DRYL
2019-08-22 04:00:12FORECAST20193284358.1147.2152.6600.02650.05651.111.1665FF26.11540.11235458.6543426933800.419168283720749323415222.5DRYL
2019-08-22 00:00:13FORECAST20193284359.3447.0953.21500.03550.06550.690.7555FF27.34532.34235458.6543426933800.462299912113059323415222.5DRYL
2019-08-21 20:00:11FORECAST20193284359.4747.0453.25500.01270.05270.961.0127FF27.47540.47235458.6543426933800.466893698458949323415222.5DRYL
2019-08-21 16:00:11FORECAST20193284359.7547.4553.600.01610.06610.961.0261FF27.75541.75235458.6543426933800.476802201758389323415222.5DRYL
2019-08-21 12:00:11FORECAST20193284360.8348.2354.5300.00830.03830.960.9983FF28.83542.83235458.6543426933800.515100452218829333415225DRYL
2019-08-21 08:00:11FORECAST20193284356.1748.2352.200.00350.02351.111.1335FF24.17538.17235458.6543426933800.353257108743849323415222.5DRYL
2019-08-21 04:00:11FORECAST20193284360.1947.8254.00500.00660.02661.111.1366FF28.19538.19235458.6543426933800.492399366307369323415222.5DRYL
2019-08-21 00:00:13FORECAST20193284360.7445.9153.32500.00690.03690.991.0269FF28.74526.74235458.6543426933800.51190937818529333415225DRYL
2019-08-20 20:00:12FORECAST20193284360.7545.9153.3300.00750.057511.0575FF28.75538.75235458.6543426933800.512263983362269333415225DRYL
2019-08-20 16:00:11FORECAST20193284358.9946.6352.8100.01080.06081.011.0708FF26.99535.99235458.6543426933800.44995869345249323415222.5DRYL
2019-08-20 12:00:11FORECAST20193284358.9645.5352.24500.01560.05561.081.1356FF26.96531.96235458.6543426933800.448902951357969323415222.5DRYL
2019-08-20 08:00:11FORECAST20193284358.9745.5552.2600.01560.03561.191.2256FF26.97534.97235458.6543426933800.449254825570819323415222.5DRYL
2019-08-20 04:00:11FORECAST20193284359.2645.552.3800.01530.03531.181.2153FF27.26540.26235458.6543426933800.459475424628949323415222.5DRYL
2019-08-20 00:00:13FORECAST20193284357.2545.4151.3300.01490.03491.21.2349FF25.25523.25235458.6543426933800.389547237823299323415222.5DRYL
2019-08-19 20:00:11FORECAST20193284357.2745.4151.3400.01490.04491.251.2949FF25.27536.27235458.6543426933800.390229576465049323415222.5DRYL
2019-08-19 16:00:11FORECAST20193284356.9546.2651.60500.01780.04781.141.1878FF24.95536.95235458.6543426933800.379354090438799323415222.5DRYL
2019-08-19 12:00:11FORECAST20193284360.1548.7454.44500.01640.04641.151.1964FF28.15537.15235458.6543426933800.490980602845439323415222.5DRYL
2019-08-19 08:00:11FORECAST20193284360.1748.7554.4600.01640.06641.111.1764FF28.17533.17235458.6543426933800.491689971435139323415222.5DRYL
2019-08-19 04:00:12FORECAST20193284360.9548.4254.68500.01310.05311.021.0731FF28.95543.95235458.6543426933800.519353678458479333415225DRYL
2019-08-19 00:00:13FORECAST20193284360.9649.3955.17500.00380.03381.351.3838FF28.96533.96235458.6543426933800.519708021240389333415225DRYL
2019-08-18 20:00:12FORECAST20193284360.9849.3755.17500.00380.01381.461.4738FF28.98542.98235458.6543426933800.520416659807659333415225DRYL
2019-08-18 16:00:11FORECAST20193284358.6747.1152.8900.01250.02251.261.2825FF26.67551.67235458.6543426933800.438717186941379323415222.5DRYL
2019-08-18 12:00:11FORECAST20193284361.2348.6154.9200.00150.01151.161.1715FF29.23551.23235458.6543426933800.529268475208459333415225DRYL
2019-08-18 08:00:13FORECAST20193284361.2448.6154.92500.00150.01151.081.0915FF29.24552.24235458.6543426933800.529622276451899333415225DRYL
2019-08-18 04:00:13FORECAST20193284360.7147.4654.08500.00660.01660.930.9466FF28.71546.71235458.6543426933800.510845507283899333415225DRYL
2019-08-18 00:00:13FORECAST20193284364.3148.1756.2400.00710.01710.850.8671FF32.31549.31235458.6543426933800.6358274352629333415225DRYL
2019-08-17 20:00:11FORECAST20193284365.0451.1758.10500.00260.01260.780.7926FF33.04562.04235458.6543426933800.659920370405859333415225DRYL
2019-08-17 16:00:11FORECAST20193284362.3451.0556.69500.00890.00890.750.7589FF30.34554.34235458.6543426933800.568336383344659333415225DRYL
2019-08-17 12:00:11FORECAST20193284356.2450.8353.53500.04910.05910.70.7591FF24.24548.24235458.6543426933800.355573269649519323415222.5DRYL
2019-08-17 08:00:11FORECAST20193284353.0551.2952.1700.01510.02510.70.7251FF21.05538.05235458.6543426933800.256551260414999323415222.5DRYL
2019-08-17 04:00:12FORECAST20193284352.151.6951.8950000.690.69FF20.1553.1235458.6543426933800.230101598693329313415220DRYL