MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Tuesday, December 13, 2022

[ Monday, December 12, 2022 | Index | Today | Wednesday, December 14, 2022 ]

DAY 74 OF WATER YEAR 2023, FORECAST LAST UPDATED 12/14/2022 07:00:13 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:

WET

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 32.28°F
MINIMUM TEMPERATURE (Tmin): 16.98°F
AVERAGE TEMPERATURE (Tavg): 24.63°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.507
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: 0
18-DAY CUMULATIVE DD32: -93

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): 0.03 in
DAY 4-15 (P15): 7.46 in
18-DAY TOTAL (P18): 7.49 in

PRECIP THRESHOLD A (PA) EXCEEDED: True
P3 > (-0.67 * P15 + 2.5)

PRECIP THRESHOLD B (PB) EXCEEDED: True
P3 > (-0.67 * P15 + 4.5)
Snow at Paradise DEPTH: 73 in
SWE DAY: 19
CALCULATED SNOW DENSITY: 334.96 kg/m3
CALCULATED SWE: 24.41 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: 154

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 3
D1: 2
D2: 1
D3: 1
D4: 1
D5: 2
HSdry: 3.0

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
2022-12-14 07:00:13OBSERVATION20237415432.2800816.9800824.6300872.8787912500.037.467.49TT0.28008-92.7199219334.95955485017 24.4114474751190.5068273780752216 3211123WETL
2022-12-14 03:00:19OBSERVATION20237415432.2800816.9800824.6300872.8787912500.037.467.49TT0.28008-92.7199219334.95955485017 24.4114474751190.5068273780752216 3211123WETL
2022-12-13 11:00:02FORECAST20237415433.6325.829.71574.9827600334060.00260.03267.467.4926TT1.63-91.3719336.3609818062625.2212747833790.57144865909683163211123WETL
2022-12-13 07:00:15FORECAST20237415433.7121.3527.5375.1084745016430.00350.03357.467.4935TT1.71-91.2919336.444481740225.2698317780020.57523586852503163211123WETL
2022-12-13 03:00:10FORECAST20237415433.4718.8726.1775.1162672991960.00350.03357.467.4935TT1.47-91.5319336.4496568625825.2728423576130.56385481238712163211123WETL
2022-12-12 23:00:03FORECAST20237415433.0122.4527.7376.99420533333300.027.467.48TT1.01-85.9919337.6937956162526.000465439470.54190066919559163211123WETL
2022-12-12 19:00:02FORECAST20237415432.4720.426.43576.9983337476630.00020.02027.467.4802TT0.47-86.5319337.6965241690626.0020696733950.5159693004616163211123WETL
2022-12-12 15:00:01FORECAST20237415434.9221.8128.36576.9569773774850.00060.02067.467.4806TT2.92-84.0819337.6691896123925.9860001860740.63148174188133163211123WETL
2022-12-12 11:00:06FORECAST20237415434.3821.2427.8176.9901184047160.00080.02087.467.4808TT2.38-84.6219337.6910944540125.9988773462320.60664925115377163211123WETL
2022-12-12 07:00:23FORECAST20237415434.5421.5428.0477.0559452804980.00080.01087.467.4708TT2.54-85.4619337.7345978148526.0244586885520.61405748729069163211123WETL
2022-12-12 03:00:15FORECAST20237415434.5621.628.0877.0635698571560.00080.02087.467.4808TT2.56-90.4419337.7396362397326.0274220508910.61498066104661163211123WETL
2022-12-11 23:00:04FORECAST20237415431.9120.0325.9779.0329414996370.00080.02087.467.4808TT-0.09-85.0919339.0377619929526.7951516097570.48900739653911162211122.5WETL
2022-12-11 19:00:05FORECAST20237415432.4822.5827.5379.0175738747060.00140.01147.467.4714TT0.48-84.5219339.0276574273826.7891429663370.51645046646853163211123WETL
2022-12-11 15:00:05FORECAST20237415433.7319.7726.7579.0170920702650.0020.0227.467.482TT1.73-83.2719339.0273406235426.7889545883870.57618160116327163211123WETL
2022-12-11 11:00:09FORECAST20237415432.3119.3125.8179.0971039021970.0020.0227.467.482TT0.31-84.6919339.0799459821826.8202417185040.50826795775229163211123WETL
2022-12-11 07:00:25FORECAST20237415432.1521.626.87579.2892821489540.00020.03027.467.4902TT0.15-84.8519339.2062536960926.8954203559990.50056353170092163211123WETL
2022-12-11 03:00:24FORECAST20237415431.9821.5126.74579.314871675810.00020.04027.467.5002TT-0.02-85.0219339.223067570126.9054340737970.49237741432027162211122.5WETL
2022-12-10 23:00:09FORECAST20237415430.9719.5225.24573.2708274661690.00230.06237.387.4423TT-1.03-87.0319335.2212532626524.56193861080.44392495400105162211122.5WETL
2022-12-10 19:00:06FORECAST20237415431.1919.3825.28573.22172775995300.057.387.43TT-0.81-86.8119335.1884916985824.5430804874230.45443295733735162211122.5WETL
2022-12-10 15:00:08FORECAST20237415430.1618.5224.3473.3636242953970.0010.0717.387.451TT-1.84-88.8419335.2831603836824.5975878109620.40563007289647162211122.5WETL
2022-12-10 11:00:09FORECAST20237415430.7818.5124.64574.8255567088770.0010.0717.387.451TT-1.22-88.2219336.2565293538925.1605820058990.43488120207702162211122.5WETL
2022-12-10 07:00:31FORECAST20237415430.3517.6223.98574.3699152103590.00030.07037.487.5503TT-1.65-86.6519335.9535463796224.9848367588720.41454621737508162211122.5WETL
2022-12-10 03:00:31FORECAST20237415430.4817.624.0474.7355789713350.00360.10367.637.7336TT-1.52-87.5219336.1967256179425.1258569373240.42067250114149162212125WETL
2022-12-09 23:00:09FORECAST20237415430.0817.4723.77568.814092032770.01010.13017.67.7301TT-1.92-87.9219332.230807328722.8621613516390.40189021832006162212125WETL
2022-12-09 19:00:09FORECAST20237415430.0817.4723.77568.431968983690.00050.11057.517.6205TT-1.92-87.9219331.9728256136422.717554105820.40189021832006162212125WETL
2022-12-09 15:00:07FORECAST20237415430.418.3524.37568.47650152482600.167.537.69TT-1.6-85.619332.002903641122.7343973374260.41690010755922162212125WETL
2022-12-09 11:00:09FORECAST20237415430.4317.5924.0170.38913268811700.157.467.61TT-1.57-91.5719333.2915212057923.4601011099790.41831387848403162212125WETL
2022-12-09 07:00:22FORECAST20237415430.4317.5924.0170.53080795932500.067.517.57TT-1.57-84.5719333.3867248091223.5140350637010.41831387848403162211122.5WETL
2022-12-09 03:00:11FORECAST20237415430.8420.0125.42569.90529377430900.117.537.64TT-1.16-84.1619332.9661304895823.2760951687690.43773367621835162212125WETL
2022-12-08 23:00:08FORECAST20237415433.620.9327.26567.13774468751100.117.157.26TT1.6-82.419331.097196860322.2291190695580.57002673814863163212126WETL
2022-12-08 19:00:02FORECAST20237415433.6722.8128.2466.76875379828600.097.027.11TT1.67-80.3319330.8470222210822.0902433715760.57334310894185163211123WETL
2022-12-08 15:00:08FORECAST20237415433.6720.1826.92567.80279739438800.077.147.21TT1.67-83.3319331.5475087453122.4798485620720.57334310894185163211123WETL
2022-12-08 11:00:07FORECAST20237415433.342227.6769.53981917784800.067.17.16TT1.34-90.6619332.7200767391423.137293973280.55766729991355163211123WETL
2022-12-08 07:00:31FORECAST20237415433.3119.3226.31570.69822234888100.047.257.29TT1.31-86.6919333.4991805518823.5777992198270.55623735578365163211123WETL
2022-12-08 03:00:30FORECAST20237415433.2722.6627.96571.33045325216300.047.477.51TT1.27-85.7319333.9234322319623.8189097726240.55432962730521163211123WETL
2022-12-07 23:00:12FORECAST20237415432.522.0127.25574.47406623012200.057.387.43TT0.5-90.519336.0228334697725.0249867546610.51741272591427163211123WETL
2022-12-07 19:00:06FORECAST20237415431.0821.2426.1673.3556349377090.0090.1697.127.289TT-0.92-88.9219335.2778310543524.594518177530.44917449998543162212125WETL
2022-12-07 15:00:10FORECAST20237415432.3620.726.5372.40281720703200.047.187.22TT0.36-87.6419334.6414744335124.2289855033010.51067509353248163211123WETL
2022-12-07 11:00:12FORECAST20237415430.8121.2126.0174.1531656964710.00910.18917.337.5191TT-1.19-86.1919335.8092936876824.9013221972370.43630702512624162212125WETL
2022-12-07 07:00:19FORECAST20237415430.8121.226.00574.6933279378230.00910.26917.347.6091TT-1.19-86.1919336.1686387369625.1095543755920.43630702512624162212125WETL
2022-12-07 03:00:14FORECAST20237415434.6720.8627.76574.6456958478710.01080.27087.237.5008TT2.67-67.3319336.1369711195225.0911781094120.6200463473317163212126WETL
2022-12-06 23:00:07FORECAST20237415436.722.629.6572.5275967242820.12230.15237.087.2323TT4.7-53.319334.7248983628324.2767924420350.70906413442008164212127WETL
2022-12-06 19:00:07FORECAST20237415434.7220.2227.4772.5909127205480.06080.08087.177.2508TT2.72-50.2819334.7672194717724.3010580103760.62234220136355163211123WETL
2022-12-06 15:00:07FORECAST20237415434.0923.8928.9972.7966912100720.0070.0177.257.267TT2.09-55.9119334.9047170831424.3799552742980.5931246962334163211123WETL
2022-12-06 11:00:06FORECAST20237415428.0924.1826.13575.5303696567940.01830.25837.517.7683TT-3.91-60.9119336.7245109855725.4329267872440.31253569664827162212125WETL
2022-12-06 07:00:20FORECAST20237415428.5624.6126.58576.4534831200660.00070.24077.57.7407TT-3.44-69.4419337.3361739296625.7905254793190.33289269646982162212125WETL
2022-12-06 03:00:35FORECAST20237415429.8927.5828.73577.2916281975920.01440.26447.457.7144TT-2.11-63.1119337.8902952211926.1160910698110.39304457164354162212125WETL