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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, August 16, 2020

[ Saturday, August 15, 2020 | Index | Today | Monday, August 17, 2020 ]

DAY 321 OF WATER YEAR 2020, FORECAST LAST UPDATED 08/17/2020 04:00:05 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:
H
HIGH

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 83.90°F
MINIMUM TEMPERATURE (Tmin): 66.87°F
AVERAGE TEMPERATURE (Tavg): 75.38°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.982
Maximum Percentile on this day is based on 96 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 52
18-DAY CUMULATIVE DD32: 532

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: 228
CALCULATED SNOW DENSITY: 454.90 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: 35

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 5
D1: 3
D2: 4
D3: 1
D4: 5
D5: 1
HSdry: 60.0

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
2020-08-17 04:00:05OBSERVATION20203213583.8999466.8699675.384950000.10.1FF51.89994531.89994228454.90070616754 00.9815058532160796 53415160DRYH
2020-08-17 00:00:01FORECAST20203213570.5170.5170.5100.00030.00030.10.1003FF38.51518.51229455.4430723357400.785169577376789643415155DRYH
2020-08-16 12:00:03FORECAST20203213585.1966.2375.7100.01290.01290.10.1129FF53.19533.19229455.4430723357400.986488625681069653415160DRYH
2020-08-16 08:00:02FORECAST20203213584.9666.0575.50500.01390.01390.10.1139FF52.96532.96229455.4430723357400.985695987326089653415160DRYH
2020-08-16 03:52:03FORECAST20203213584.6665.7475.200.02330.02330.10.1233FF52.66532.66229455.4430723357400.984602279595889653415160DRYH
2020-08-16 00:00:03FORECAST20203213585.4365.9475.68500.01510.01510.10.1151FF53.43533.43228454.9007061675400.987275075835469653415160DRYH
2020-08-15 20:00:03FORECAST20203213585.5763.9174.7400.0130.0330.10.133FF53.57548.57228454.9007061675400.987715321950979653415160DRYH
2020-08-15 16:00:03FORECAST20203213586.3163.775.00500.01280.03280.10.1328FF54.31549.31228454.9007061675400.989829900769439653415160DRYH
2020-08-15 12:00:03FORECAST20203213585.7564.3175.0300.03770.05770.10.1577FF53.75548.75228454.9007061675400.988261943101239653415160DRYH
2020-08-15 08:00:02FORECAST20203213585.9164.0374.9700.06130.08130.10.1813FF53.91544.91228454.9007061675400.988730004094739653415160DRYH
2020-08-15 03:52:05FORECAST20203213585.8763.9874.92500.06430.08430.10.1843FF53.87549.87228454.9007061675400.988614533984079653415160DRYH
2020-08-15 00:00:02FORECAST20203213586.2361.3573.7900.03340.04340.10.1434FF54.23550.23228454.9007061675400.989617722325749653415160DRYH
2020-08-14 20:00:02FORECAST20203213586.2863.7375.00500.0150.0350.10.135FF54.28564.28228454.9007061675400.989750780781849653415160DRYH
2020-08-14 16:00:02FORECAST20203213585.6263.5374.57500.01520.03520.10.1352FF53.62563.62228454.9007061675400.987869327315679653415160DRYH
2020-08-14 12:00:02FORECAST20203213585.164.9275.0100.01710.03710.10.1371FF53.1563.1228454.9007061675400.98618308864989653415160DRYH
2020-08-14 08:00:02FORECAST20203213585.5365.4775.500.01740.03740.10.1374FF53.53559.53228454.9007061675400.987590902490379653415160DRYH
2020-08-14 04:00:04FORECAST20203213584.0965.1274.60500.01380.02380.10.1238FF52.09560.09228454.9007061675400.982325979278449653415160DRYH
2020-08-14 00:00:02FORECAST20203213583.2465.2374.23500.02140.03140.10.1314FF51.24548.24228454.9007061675400.97840265658359653415160DRYH
2020-08-13 20:00:02FORECAST20203213583.7565.3174.5300.0220.0220.110.132FF51.75565.75228454.9007061675400.980836232298399653415160DRYH
2020-08-13 16:00:03FORECAST20203213584.2265.6174.91500.05530.05530.110.1653FF52.22566.22228454.9007061675400.982868927687469653415160DRYH
2020-08-13 12:00:03FORECAST20203213581.3263.9272.6200.02330.02330.110.1333FF49.32563.32228454.9007061675400.966786441502529653415160DRYH
2020-08-13 07:51:54FORECAST20203213581.8963.2472.56500.03230.03230.120.1523FF49.89557.89228454.9007061675400.970675650956329653415160DRYH
2020-08-13 04:00:03FORECAST20203213586.0864.375.1900.01750.01750.110.1275FF54.08568.08228454.9007061675400.989209482768069653415160DRYH
2020-08-13 00:00:03FORECAST20203213586.0763.0774.5700.00740.00740.110.1174FF54.07561.07228454.9007061675400.989181777213689653415160DRYH
2020-08-12 20:00:04FORECAST20203213586.0463.0174.52500.00750.00750.120.1275FF54.04574.04228454.9007061675400.989098289152799653415160DRYH
2020-08-12 16:00:04FORECAST20203213586.0762.9874.52500.01180.01180.120.1318FF54.07573.07228454.9007061675400.989181777213689653415160DRYH
2020-08-12 12:00:02FORECAST20203213585.6162.8374.2200.01620.01620.120.1362FF53.61566.61228454.9007061675400.987838660634819653415160DRYH
2020-08-12 08:00:03FORECAST20203213585.662.8374.21500.01620.01620.110.1262FF53.6568.6228454.9007061675400.987807926875199653415160DRYH
2020-08-12 04:00:02FORECAST20203213585.4862.0373.75500.0230.0230.120.143FF53.48571.48228454.9007061675400.98743384682239653415160DRYH
2020-08-12 00:00:04FORECAST20203213586.6961.874.24500.02850.02850.130.1585FF54.69554.69228454.9007061675400.990786947302839653415160DRYH
2020-08-11 19:52:17FORECAST20203213586.6861.874.2400.02850.02850.130.1585FF54.68573.68228454.9007061675400.99076280777679653415160DRYH
2020-08-11 16:00:03FORECAST20203213585.660.8173.20500.02640.02640.130.1564FF53.6571.6228454.9007061675400.987807926875199653415160DRYH
2020-08-11 12:00:02FORECAST20203213583.1655.9169.53500.00330.00330.130.1333FF51.16556.16228454.9007061675400.977998223888539653415160DRYH
2020-08-11 08:00:03FORECAST20203213584.3455.970.1200.00330.00330.120.1233FF52.34562.34228454.9007061675400.983357419896079653415160DRYH
2020-08-11 04:00:03FORECAST20203213585.0356.0770.5500.00330.00330.150.1533FF53.03568.03228454.9007061675400.985941353106229653415160DRYH
2020-08-11 00:00:02FORECAST20203213582.1659.5270.8400.03160.03160.130.1616FF50.16563.16228454.9007061675400.972381779629169653415160DRYH
2020-08-10 20:00:03FORECAST20203213582.1559.5170.8300.03160.03160.140.1716FF50.15582.15228454.9007061675400.97232009447669653415160DRYH
2020-08-10 16:00:03FORECAST20203213582.4859.8771.17500.03160.03160.130.1616FF50.48583.48228454.9007061675400.974296177450799653415160DRYH
2020-08-10 12:00:03FORECAST20203213576.9755.5466.25500.0360.0360.140.176FF44.97567.97228454.9007061675400.921339761722049653415160DRYH
2020-08-10 08:00:03FORECAST20203213576.9655.566.2300.0360.0360.130.166FF44.96566.96228454.9007061675400.921197635062389653415160DRYH
2020-08-10 04:00:04FORECAST20203213578.2857.1467.7100.0360.0360.120.156FF46.28574.28228454.9007061675400.938334731119989653415160DRYH
2020-08-10 00:00:02FORECAST20203213583.856.1469.9700.0020.0020.130.132FF51.8575.8228454.9007061675400.981061778703539653415160DRYH
2020-08-09 20:00:03FORECAST20203213583.7956.1269.95500.00110.00110.110.1111FF51.79589.79228454.9007061675400.981016850555439653415160DRYH
2020-08-09 16:00:03FORECAST20203213582.0554.7568.400.00110.00110.110.1111FF50.05587.05228454.9007061675400.971696921649439653415160DRYH
2020-08-09 12:00:03FORECAST20203213576.1358.7867.45500.00060.00060.110.1106FF44.13579.13228454.9007061675400.908713393841049653415160DRYH
2020-08-09 08:00:02FORECAST20203213561.6758.7860.22500.00040.00040.120.1204FF29.67556.67228454.9007061675400.474601603248279623415222.5DRYL
2020-08-09 04:04:13FORECAST20203213558.0457.3157.675000.010.110.12FF26.04566.04228454.9007061675400.33938023667989623415222.5DRYL