MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Saturday, January 7, 2023

[ Friday, January 6, 2023 | Index | Today | Sunday, January 8, 2023 ]

DAY 99 OF WATER YEAR 2023, FORECAST LAST UPDATED 01/08/2023 07:00:19 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): 33.30°F
MINIMUM TEMPERATURE (Tmin): 29.71°F
AVERAGE TEMPERATURE (Tavg): 31.51°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.476
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: 1
18-DAY CUMULATIVE DD32: 11

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: 0.49 in
DAY 1-3 (P3): 0.82 in
DAY 4-15 (P15): 9.87 in
18-DAY TOTAL (P18): 10.69 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: 85 in
SWE DAY: 7
CALCULATED SNOW DENSITY: 330.85 kg/m3
CALCULATED SWE: 28.03 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: -185

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 2
D1: 1
D2: 1
D3: 3
D4: 1
D5: 2
HSdry: 6.0

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
2023-01-08 07:00:19OBSERVATION202399-18533.2999629.7100431.50584.7186157142860.490000000000010.820000000000019.8710.69TT1.2999611.299967330.84505917864 28.0287354295250.4764960697887816 2113126WETL
2023-01-08 03:00:10OBSERVATION202399-18533.2999629.7100431.50584.7186157142860.490000000000010.820000000000019.8710.69TT1.2999611.299967330.84505917864 28.0287354295250.4764960697887816 2113126WETL
2023-01-07 11:00:02FORECAST202399-18535.7225.7730.74580.7275792584980.18150.51159.8710.3815TT3.7213.727328.124092894426.4886637157550.57431608121152163113127.5WETL
2023-01-07 07:00:13FORECAST202399-18535.826.4331.11581.1496929340570.2230.5539.8710.423TT3.813.87328.4131831832226.6506289708150.57750558735165163113127.5WETL
2023-01-07 03:00:23FORECAST202399-18536.0527.1331.5981.6103592297150.3620.6929.8710.562TT4.0514.057328.728323249626.8276365493810.587439172917163113127.5WETL
2023-01-06 23:00:01FORECAST202399-18535.5325.7730.6581.4403971289580.41470.73479.8710.6047TT3.5317.537328.6120957450226.7622995788530.56672186448545163113127.5WETL
2023-01-06 19:00:02FORECAST202399-18532.9926.8829.93581.3316456164430.40540.72549.8710.5954TT0.9914.997328.5377003845226.7205118193150.46394536802044162113126WETL
2023-01-06 15:00:03FORECAST202399-18534.827.8131.30580.4948135225070.330.659.8710.52TT2.816.87327.96454748326.3994450916380.53733875460621163113127.5WETL
2023-01-06 11:00:05FORECAST202399-18534.927.5131.20581.1929978130920.30060.62069.8710.4906TT2.916.97328.4428235918226.6672574576170.54137958266676163113127.5WETL
2023-01-06 07:00:22FORECAST202399-18535.4627.2531.35580.8069938992380.38420.67429.8710.5442TT3.4616.467328.1785047645526.519118432370.56391761823862163113127.5WETL
2023-01-06 03:00:23FORECAST202399-18535.427.0631.2380.5357961456010.38070.70079.8710.5707TT3.412.47327.9926451843426.4151488098230.56151141327113163113127.5WETL
2023-01-05 23:00:06FORECAST202399-18537.5528.1132.8382.2849126442960.29890.76899.8710.6389TT5.5516.557329.189117893127.0872978092870.64566423254697163113127.5WETL
2023-01-05 19:00:05FORECAST202399-18538.1927.1832.68581.9658370528360.33170.84179.8710.7117TT6.1923.197328.971252347826.9644040650070.66959124456582163113127.5WETL
2023-01-05 15:00:05FORECAST202399-18537.5526.632.07582.4884880064850.30670.83679.8710.7067TT5.5518.557329.3280273807327.1657710367950.64566423254697163113127.5WETL
2023-01-05 11:00:06FORECAST202399-18537.3527.2432.29582.729621738770.22520.73529.8710.6052TT5.3518.357329.4924718919827.2587875653950.63806207039866163113127.5WETL
2023-01-05 07:00:24FORECAST202399-18536.2725.1630.71583.4378351821150.33510.87519.8710.7451TT4.2720.277329.9748660236627.5323884855230.5961348680641163113127.5WETL
2023-01-05 03:00:19FORECAST202399-18536.5325.5231.02583.3258722933670.34260.93269.8710.8026TT4.5320.537329.8986611015827.4890937047030.60635037029382163113127.5WETL
2023-01-04 23:00:07FORECAST202399-18534.5527.6731.1186.2569315668460.24970.93979.9110.8497TT2.5521.557331.8864929613428.6275105113260.52722072057656163113127.5WETL
2023-01-04 19:00:03FORECAST202399-18533.8526.8930.3786.5981468481040.29480.96489.9110.8748TT1.8515.857332.116943481728.7607118423720.49881751241224162113126WETL
2023-01-04 15:00:04FORECAST202399-18532.932729.96586.0583324066520.18930.86939.9110.7793TT0.9316.937331.7522707604328.5500471937620.46151963571942162113126WETL
2023-01-04 11:00:07FORECAST202399-18537.8129.4133.6185.3074517056770.20370.83379.9110.7437TT5.8122.817331.2441795978428.2575968538290.65546057074932163113127.5WETL
2023-01-04 07:00:26FORECAST202399-18534.2826.3930.33585.4286135825320.20480.78489.9110.6948TT2.2827.287331.3262306115228.3047405246680.51627367675791163113127.5WETL
2023-01-04 03:00:20FORECAST202399-18533.9726.7830.37585.9154967222470.19080.89089.9210.8108TT1.9720.977331.6556941439928.4943637031430.50369020649565163113127.5WETL
2023-01-03 23:00:07FORECAST202399-18538.0327.1732.687.6138455347560.14590.76599.8310.5959TT6.0324.037332.8017467222729.1580408310220.6636694663825163113127.5WETL
2023-01-03 19:00:09FORECAST202399-18537.7926.832.29588.0685389377080.19980.80989.810.6098TT5.7924.797333.107737594929.3363117588280.65471059424289163113127.5WETL
2023-01-03 15:00:06FORECAST202399-18537.6526.8532.2588.5736240998180.11390.84399.7810.6239TT5.6525.657333.4472260933429.5346292611180.64944389143379163113127.5WETL
2023-01-03 11:00:10FORECAST202399-18536.7226.7831.7588.6694531633340.22060.90069.810.7006TT4.7221.727333.5115876046729.5722900965420.61376996814076163113127.5WETL
2023-01-03 07:00:18FORECAST202399-18538.2127.0432.62587.1720476869520.18380.86389.810.6638TT6.2129.217332.5040953584128.985062856690.67032852994317163113127.5WETL
2023-01-03 03:00:25FORECAST202399-18538.227.0432.6287.7356467413280.17710.85719.8810.7371TT6.229.27332.8837488261729.2057709929420.66995996971184163113127.5WETL
2023-01-02 23:00:05FORECAST202399-18536.2727.531.88591.0154136064940.23981.04989.8810.9298TT4.2728.277335.0823248331130.4976563869110.59613486806411631141210WETL
2023-01-02 19:00:05FORECAST202399-18538.928.2733.58589.4509151857060.01150.85159.8910.7415TT6.933.97334.0358552583129.8798129576950.69534383490726163113127.5WETL
2023-01-02 15:00:03FORECAST202399-18539.3128.3733.8489.5265217524590.01180.75189.8610.6118TT7.3138.317334.0865230426829.9096043723840.70979641345298164113129WETL
2023-01-02 11:00:05FORECAST202399-18533.9329.2231.57591.0809608436020.04980.64989.8710.5198TT1.9322.937335.1260777008730.5236051607430.50206600040608163113127.5WETL
2023-01-02 07:00:18FORECAST202399-18538.8429.8534.34590.0938087182630.04980.67989.9110.5898TT6.8439.847334.4663804920530.133350106740.6932022690454163113127.5WETL
2023-01-02 03:00:24FORECAST202399-18539.3230.935.1190.1646041277650.05530.66539.9210.5853TT7.3235.327334.5137469562630.1612995696060.71014487247499164113129WETL
2023-01-01 23:00:11FORECAST202399-18538.7426.9632.8591.3254914370140.33811.07819.9311.0081TT6.7434.747335.28923793430.6204544278640.689618336090051631141210WETL
2023-01-01 19:00:04FORECAST202399-18540.126.533.390.0284323063170.34681.15689.9111.0668TT8.135.17334.4226321039430.107545296070.736701373816451641141212WETL
2023-01-01 15:00:08FORECAST202399-18539.1126.4832.79591.0686082662130.34681.10689.911.0068TT7.1127.117335.117832896130.5187146470370.702786424455831641141212WETL
2023-01-01 11:00:08FORECAST202399-18536.7127.1231.91591.4255150281070.2041.0449.8210.864TT4.7129.717335.3559483289830.6600902937160.613380471987541631141210WETL
2023-01-01 07:00:31FORECAST202399-18536.7227.1231.9291.620298217720.2041.1449.7810.924TT4.7229.727335.4858096881330.737309931440.613769968140761631141210WETL
2023-01-01 03:00:28FORECAST202399-18534.9322.7428.83592.833741811370.38521.19529.7710.9652TT2.9331.937336.2933635870631.2193712881180.542591017009581631141210WETL
2022-12-31 23:00:10FORECAST202399-18540.0430.0135.02587.7670528695220.50831.84839.6311.4783TT8.0446.047332.9048887442429.2180809709380.734703466513041641151215WETL
2022-12-31 19:00:11FORECAST202399-18542.3929.8236.10587.6137839215670.40451.79459.6711.4645TT10.3950.397332.8017052350529.1580166911930.806853644986181641151215WETL
2022-12-31 15:00:11FORECAST202399-18542.3929.8236.10587.3500626746840.40291.79299.6311.4229TT10.3954.397332.6240691325329.0547332858350.806853644986181641151215WETL
2022-12-31 11:00:08FORECAST202399-18537.0835.1436.1187.835375375380.18950.80959.7110.5195TT5.0843.087332.9508717845129.2448648047520.62771267120437163113127.5WETL
2022-12-31 07:00:20FORECAST202399-18537.4335.7536.5987.1976286938980.17970.79979.8610.6597TT5.4344.437332.5213390981728.995072259480.64110967088791163113127.5WETL
2022-12-31 03:00:13FORECAST202399-18537.637.0337.31588.8086210985090.13490.88499.9510.8349TT5.640.67333.6050288377629.627002602610.64755588233886163113127.5WETL