MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, December 14, 2022

[ Tuesday, December 13, 2022 | Index | Today | Thursday, December 15, 2022 ]

DAY 75 OF WATER YEAR 2023, FORECAST LAST UPDATED 12/15/2022 07:00:23 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): 32.22°F
MINIMUM TEMPERATURE (Tmin): 22.62°F
AVERAGE TEMPERATURE (Tavg): 27.42°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.472
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: -89

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): 0.02 in
DAY 4-15 (P15): 7.36 in
18-DAY TOTAL (P18): 7.38 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: 70 in
SWE DAY: 18
CALCULATED SNOW DENSITY: 331.82 kg/m3
CALCULATED SWE: 23.13 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: 155

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: 1
D3: 1
D4: 1
D5: 2
HSdry: 2.5

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
2022-12-15 07:00:23OBSERVATION20237515532.2199622.6200227.4199969.6996637500.027.367.38TT0.21996-88.7800418331.8185284023 23.127639855660.4722640848167516 2211122.5WETL
2022-12-15 03:00:18OBSERVATION20237515532.2199622.6200227.4199969.6996637500.027.367.38TT0.21996-88.7800418331.8185284023 23.127639855660.4722640848167516 2211122.5WETL
2022-12-14 11:00:03FORECAST20237515534.327.7831.0472.9828862259630.00330.02337.367.3833TT2.3-86.718334.0282575614424.3783463178630.58226498112255163211123WETL
2022-12-14 07:00:14FORECAST20237515534.5723.4529.0172.8720165755520.00490.02497.367.3849TT2.57-86.4318333.9539384631624.3358969391580.59626166028388163211123WETL
2022-12-14 03:00:22FORECAST20237515530.4623.9927.22572.9063980643470.00630.02637.367.3863TT-1.54-90.5418333.9769875974524.3490592021110.38049376554291162211122.5WETL
2022-12-13 23:00:02FORECAST20237515534.4524.5829.51574.97545466666700.027.367.38TT2.45-84.5518335.3603712878625.1437963144890.590054986198163211123WETL
2022-12-13 19:00:01FORECAST20237515534.3825.9530.16574.9771745151570.00020.02027.367.3802TT2.38-84.6218335.3615181674525.1444590733090.58642387342944163211123WETL
2022-12-13 15:00:01FORECAST20237515534.5423.5329.03574.9802195307940.00170.02177.367.3817TT2.54-84.4618335.3635487214125.1456325057570.59471219668736163211123WETL
2022-12-13 11:00:05FORECAST20237515534.6625.6630.1674.9565795601960.00150.02157.367.3815TT2.66-84.3418335.3477841089825.13652285990.60090090494628163211123WETL
2022-12-13 07:00:16FORECAST20237515534.8125.7730.2975.0847140310220.00250.02257.367.3825TT2.81-84.1918335.4332208577325.1859074646070.60860110639511163211123WETL
2022-12-13 03:00:11FORECAST20237515534.4525.7430.09575.0997353107660.00250.02257.367.3825TT2.45-85.5518335.4432348374525.1916981480790.590054986198163211123WETL
2022-12-12 23:00:07FORECAST20237515534.4324.729.56576.9803560130780.00280.01287.367.3728TT2.43-79.5718336.6939426135725.9188195698390.58901829851287163211123WETL
2022-12-12 19:00:03FORECAST20237515534.6526.230.42576.9762677307830.00210.01217.367.3721TT2.65-80.3518336.6912301738725.9172342764710.60038612340887163211123WETL
2022-12-12 15:00:04FORECAST20237515535.4126.3430.87576.9276777947310.00430.01437.367.3743TT3.41-76.5918336.6589902061625.8983943252790.63895094279373163211123WETL
2022-12-12 11:00:08FORECAST20237515535.7924.330.04576.9536193318420.00430.01437.367.3743TT3.79-77.2118336.6762032021725.9084523793090.65774309726028163211123WETL
2022-12-12 07:00:24FORECAST20237515536.726.431.5576.9769811061160.00080.00087.367.3608TT4.7-76.318336.6917034767725.9175108971170.70111863223336164211123.5WETL
2022-12-12 03:00:15FORECAST20237515536.6926.3331.5176.9805399417360.00080.01087.367.3708TT4.69-81.3118336.6940646434725.9188908914320.70065574491172164211123.5WETL
2022-12-11 23:00:05FORECAST20237515536.7625.3331.04578.9397103563180.00110.01117.367.3711TT4.76-76.2418337.9906730454826.6808858333470.70388910733615164211123.5WETL
2022-12-11 19:00:06FORECAST20237515536.1525.5130.8378.9093262157820.00120.00127.367.3612TT4.15-76.8518337.9706135827926.6690333985520.67519397607531163211123WETL
2022-12-11 15:00:06FORECAST20237515536.1225.9431.0378.89928540359800.017.367.37TT4.12-74.8818337.9639843467926.6651168571150.67375366227699163211123WETL
2022-12-11 11:00:11FORECAST20237515535.2125.0930.1579.04784923553100.017.367.37TT3.21-77.7918338.0620532523526.7230782177460.62892049968983163211123WETL
2022-12-11 07:00:26FORECAST20237515535.3924.7130.0579.19902748228800.017.377.38TT3.39-77.6118338.1618099850826.7820864824680.63795205369668163211123WETL
2022-12-11 03:00:25FORECAST20237515535.2824.8330.05579.22330500914400.027.377.39TT3.28-77.7218338.177826225526.7915650743920.63244152738798163211123WETL
2022-12-10 23:00:10FORECAST20237515532.922.0427.4773.26426746616900.027.317.33TT0.9-82.118334.2167815212724.4861476730560.50840514017661163211123WETL
2022-12-10 19:00:06FORECAST20237515532.919.4826.1973.21516775995300.017.317.32TT0.9-82.118334.1838946784524.4673299115570.50840514017661163211123WETL
2022-12-10 15:00:09FORECAST20237515531.818.3225.0673.36362429539700.037.317.34TT-0.2-85.218334.2833178955624.5242357423090.45003982622911162211122.5WETL
2022-12-10 11:00:10FORECAST20237515531.1217.8724.49574.82555670887700.037.317.34TT-0.88-84.8818335.2603927044825.0860455265490.41441384906606162211122.5WETL
2022-12-10 07:00:34FORECAST20237515531.717.6424.6774.36991521035900.027.427.44TT-0.3-83.318334.956256204624.9106683731160.44476821772982162211122.5WETL
2022-12-10 03:00:33FORECAST20237515531.8517.7924.8274.73557897133500.027.67.62TT-0.15-84.1518335.2003612820125.0513930718110.4526789994225162211122.5WETL
2022-12-09 23:00:10FORECAST20237515531.1716.3223.74568.8140920327700.037.597.62TT-0.83-84.8318331.2193438330422.7925584095610.41701324721103162211122.5WETL
2022-12-09 19:00:09FORECAST20237515530.8816.3223.668.4319689836900.027.497.51TT-1.12-85.1218330.9603799224722.6482704536840.40199076000521162211122.5WETL
2022-12-09 15:00:07FORECAST20237515530.8118.524.65568.47650152482600.027.567.58TT-1.19-83.1918330.9905724638722.6650764400250.39838533377455162211122.5WETL
2022-12-09 11:00:09FORECAST20237515528.3419.0523.69570.38913268811700.037.477.5TT-3.66-91.6618332.2840960909223.3891893298950.2786710341954162211122.5WETL
2022-12-09 07:00:22FORECAST20237515528.3919.1223.75570.53080795932500.037.437.46TT-3.61-84.6118332.3796621561923.4430061211240.28091405886267162211122.5WETL
2022-12-09 03:00:12FORECAST20237515528.6617.5523.10569.90529377430900.037.57.53TT-3.34-83.3418331.9574665376923.2055842188920.29317468198863162211122.5WETL
2022-12-08 23:00:09FORECAST20237515534.2123.2828.74567.11872068751100.027.137.15TT2.21-75.7918330.0684758861322.1537738407530.57757522924446163211123WETL
2022-12-08 19:00:02FORECAST20237515534.8825.3730.12566.7387964649530077TT2.88-73.1218329.8098917020722.0111152344330.61218022480822163211123WETL
2022-12-08 15:00:08FORECAST20237515534.8525.3630.10567.773277394388007.17.1TT2.85-76.1518330.5133956654822.3999760469970.61064746385037163211123WETL
2022-12-08 11:00:08FORECAST20237515534.3621.9228.1469.51767917784800.017.047.05TT2.36-84.6418331.6955062557423.058701788620.58538503944834163211123WETL
2022-12-08 07:00:32FORECAST20237515534.3321.7328.0370.67733968221500.017.177.18TT2.33-80.6718332.4784679352823.4986936152840.58382567049827163211123WETL
2022-12-08 03:00:30FORECAST20237515534.8722.5928.7371.30087858549600.017.397.4TT2.87-79.1318332.8985068745623.7359560199560.61166949731586163211123WETL
2022-12-07 23:00:12FORECAST20237515532.4919.726.09574.469911563455007.327.32TT0.49-85.5118335.0230329991424.9491356391670.48660476247464162211122.5WETL
2022-12-07 19:00:07FORECAST20237515531.5719.6125.5973.35563493770900.037.157.18TT-0.43-85.4318334.2779682762424.5211726085910.43792983999558162211122.5WETL
2022-12-07 15:00:10FORECAST20237515529.8521.6425.74572.40281720703200.017.17.11TT-2.15-86.1518333.6391888999324.1564172070240.34993394326936162211122.5WETL
2022-12-07 11:00:13FORECAST20237515524.3919.5321.9674.15316569647100.037.387.41TT-7.61-89.6118334.8114543096124.8273292484970.13272871242297161211122WETL
2022-12-07 07:00:19FORECAST20237515523.7319.5321.6374.69332793782300.037.477.5TT-8.27-90.2718335.1721674678425.0351246203060.1147452998334161211122WETL
2022-12-07 03:00:14FORECAST20237515522.4621.5822.0274.64569584787100.037.367.39TT-9.54-72.5418335.1403792845125.0167868184120.085147066419871161211122WETL