MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, March 16, 2022

[ Tuesday, March 15, 2022 | Index | Today | Thursday, March 17, 2022 ]

DAY 167 OF WATER YEAR 2022, FORECAST LAST UPDATED 03/17/2022 04:00:04 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): 33.20°F
MINIMUM TEMPERATURE (Tmin): 23.47°F
AVERAGE TEMPERATURE (Tavg): 28.34°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.338
Maximum Percentile on this day is based on 17 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: -88

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: 0.18 in
DAY 1-3 (P3): 2.61 in
DAY 4-15 (P15): 4.42 in
18-DAY TOTAL (P18): 7.03 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: 147 in
SWE DAY: 74
CALCULATED SNOW DENSITY: 420.98 kg/m3
CALCULATED SWE: 61.71 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: -118

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: 5
D4: 1
D5: 2
HSdry: 10.0

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
2022-03-17 04:00:04OBSERVATION2022167-11833.2000623.4699828.33502146.585992916670.179999999999952.614.427.0299999999999TT1.20006-87.7999474420.97759086313 61.7094181523380.3381442114823717 21151210WETL
2022-03-17 00:00:01FORECAST2022167-11725.3725.3725.37144.001453636670.00032.43034.426.8503TT-6.63-63.6375420.4877714141960.5508503200860.082091981569419161115127.5WETL
2022-03-16 12:00:01FORECAST2022167-11733.6125.2329.42144.009269948430.00962.43964.426.8596TT1.61-55.3975420.4912936208260.5546442140040.35695996914391621151210WETL
2022-03-16 08:00:01FORECAST2022167-11728.9823.3226.15144.111813003060.02612.45614.426.8761TT-3.02-60.0275420.5374953616360.604420892330.17309624410843161115127.5WETL
2022-03-16 04:00:04FORECAST2022167-1173424.529.25144.627939879140.10152.53154.426.9515TT2-5575420.769858569560.8550778081440.375190111108981621151210WETL
2022-03-16 00:00:02FORECAST2022167-11833.9823.1328.555135.715679638690.17291.51294.425.9329TF1.98-93.0274416.0245948174956.4610606320660.374248016373511721151210WETL
2022-03-15 20:00:02FORECAST2022167-11833.8525.7529.8133.688531887560.18641.97644.426.3964TT1.85-89.1574415.0857114282355.4921993683430.368142914760141721151210WETL
2022-03-15 16:00:01FORECAST2022167-11833.9625.3429.65133.784247430460.20151.99154.426.4115TT1.96-89.0474415.1301513749155.5378748873850.373306671678961721151210WETL
2022-03-15 12:00:02FORECAST2022167-11833.7825.8929.835135.586180171150.20651.99654.426.4165TT1.78-89.2274415.9647609464556.3990730225360.364869175600561721151210WETL
2022-03-15 08:00:02FORECAST2022167-11833.9825.4429.71136.533778123510.2132.2534.426.673TT1.98-89.0274416.4021340872256.8529565856190.374248016373511721151210WETL
2022-03-15 04:00:06FORECAST2022167-11833.9625.529.73136.589022220660.22312.42314.426.8431TT1.96-85.0474416.4276000822656.8794387209320.373306671678961721151210WETL
2022-03-15 00:00:02FORECAST2022167-11834.0424.1429.09131.020347569650.23661.38664.425.8066TF2.04-87.9674413.8425367387554.2217930026160.37707652981476172114128WETL
2022-03-14 20:00:02FORECAST2022167-11833.8325.6529.74131.298281832420.22482.33484.426.7548TT1.83-85.1774413.9724268086354.3538683659720.367206571596251721151210WETL
2022-03-14 16:00:02FORECAST2022167-11833.6425.7629.7131.734313897990.26852.52854.426.9485TT1.64-82.3674414.1760177790654.5611935351280.358351367274631721151210WETL
2022-03-14 12:00:02FORECAST2022167-11833.5525.6629.605131.970153657780.24912.52914.426.9491TT1.55-82.4574414.2860415482154.6733925613910.354182886969091721151210WETL
2022-03-14 08:00:02FORECAST2022167-11833.6825.6929.685134.767066554320.23382.47384.426.8938TT1.68-82.3274415.5858417987956.0072848007310.360209490062141721151210WETL
2022-03-14 04:00:06FORECAST2022167-11833.6625.6929.675133.643513681750.2792.7194.427.139TT1.66-84.3474415.0648061060155.4707190936420.359280012844641721151210WETL
2022-03-14 00:00:02FORECAST2022167-11833.8324.0828.955135.983131942780.30692.84694.427.2669TT1.83-82.1774416.1481060706456.589122815540.367206571596251721151210WETL
2022-03-13 20:00:02FORECAST2022167-11833.7925.3529.57135.043626865230.26782.78784.677.4578TT1.79-79.2174415.7138658125556.1395081774940.36533625660441721151210WETL
2022-03-13 16:00:02FORECAST2022167-11833.5624.1228.84135.208402851510.28272.77274.677.4427TT1.56-80.4474415.7901004040356.2183153970970.354645200805241721151210WETL
2022-03-13 12:00:03FORECAST2022167-11830.5623.8127.185135.979591000670.26032.79034.677.4603TT-1.44-83.4474416.1464713880456.5874269757190.22795408203876171115127.5WETL
2022-03-13 08:00:03FORECAST2022167-11830.6524.9927.82137.694206114150.2872.9774.77.677TT-1.35-85.3574416.9363090813257.4097140791160.2313475895331171115127.5WETL
2022-03-13 04:00:05FORECAST2022167-11833.7523.9728.86136.069136414920.332.874.757.62TT1.75-79.2574416.1878056825456.6303153056430.363469137331291721151210WETL
2022-03-12 23:00:02FORECAST2022167-11833.5325.3729.45137.820627161630.3543.0044.997.994TT1.53-79.4774416.994408905857.470430958290.353258904040671721151210WETL
2022-03-12 19:00:03FORECAST2022167-11832.9925.5329.26135.820161788890.33252.95255.098.0425TT0.99-72.0174416.0728553562556.511082530450.328653521339091721151210WETL
2022-03-12 15:00:03FORECAST2022167-11834.1526.0830.115137.7839380510.30293.19295.088.2729TT2.15-75.8574416.9775494665157.452808844350.382279200240741721151210WETL
2022-03-12 11:00:02FORECAST2022167-11834.0626.2330.145138.907271360630.36613.23615.088.3161TT2.06-76.9474417.4930336962957.9928181228210.378020843307671721151210WETL
2022-03-12 07:00:06FORECAST2022167-11829.5726.127.835140.489944133610.46283.30285.298.5928TT-2.43-83.4374418.2168119231958.7552565428250.19251838907747171115127.5WETL
2022-03-12 03:00:07FORECAST2022167-11834.2726.0530.16142.126855025380.46293.71295.299.0029TT2.27-83.7374418.9623394231459.5457996762890.387979140431291721151210WETL
2022-03-11 23:00:03FORECAST2022167-11834.3523.929.125144.095938369170.33283.53285.378.9028TT2.35-77.6574419.8550567562160.4994083823290.391792633875981721151210WETL
2022-03-11 19:00:02FORECAST2022167-11834.426.0230.21140.636987443540.21463.10465.468.5646TT2.4-73.674418.2839092675458.8261888954940.394181381979391721151210WETL
2022-03-11 15:00:03FORECAST2022167-11834.4226.2430.33140.066985183880.21412.99415.428.4141TT2.42-72.5874418.0236717192158.5513154332030.395138002072231721151210WETL
2022-03-11 11:00:03FORECAST2022167-11833.9626.2130.085140.210802887680.26123.63125.379.0012TT1.96-75.0474418.0893679964358.6206459655810.373306671678961721151210WETL
2022-03-11 07:00:08FORECAST2022167-11834.6725.3430.005143.471064915590.2173.5775.529.097TT2.67-80.3374419.5722432590360.1964765493950.407147314947051721151210WETL
2022-03-11 03:00:06FORECAST2022167-11834.7126.0330.37143.755981399510.2173.4175.659.067TT2.71-76.2974419.7012502073160.3345651181510.409077249485181721151210WETL
2022-03-10 23:00:03FORECAST2022167-11834.1326.3330.23142.181667080270.36143.28145.568.8414TT2.13-75.8774418.9872498588759.5723056703140.381331647459731721151210WETL
2022-03-10 19:00:03FORECAST2022167-11834.9627.331.13141.818928818730.28543.53545.689.2154TT2.96-72.0474418.8223317065659.3969344479850.421187524030821721151210WETL
2022-03-10 15:00:03FORECAST2022167-11835.0327.2831.155142.569854901960.28543.46545.759.2154TT3.03-75.9774419.1635703657459.7600894072330.424592329047991721151210WETL
2022-03-10 11:00:03FORECAST2022167-11833.6223.2128.415140.291307913550.27962.01965.627.6396TT1.62-79.3874418.1261324127958.6594619890250.357423558330081721151210WETL
2022-03-10 07:00:06FORECAST2022167-11832.7925.5529.17143.122732538690.32032.48035.748.2203TT0.79-84.2174419.4143954185860.0277343383710.319718736308941721151210WETL
2022-03-10 03:00:07FORECAST2022167-11830.2325.5527.89143.815500896650.32032.48035.768.2403TT-1.77-83.7774419.7281881729760.3634196225390.21575329353775171115127.5WETL
2022-03-09 23:00:04FORECAST2022167-11838.0326.1432.085141.785473305880.13682.89685.288.1768TT6.03-62.9774418.8071135764859.3807648223120.572441915772451731151212.5WETL
2022-03-09 19:00:03FORECAST2022167-11838.425.0131.705140.077501871470.12592.51594.97.4159TT6.4-61.674418.0284765810358.5563847106080.590397467227871731151212.5WETL
2022-03-09 15:00:03FORECAST2022167-11838.3625.0231.69140.967026436270.12592.51594.937.4459TT6.36-61.6474418.4344181696958.9854556879740.588464734302441731151212.5WETL
2022-03-09 11:00:04FORECAST2022167-11827.7826.0326.905138.769485180340.12452.64455.187.8245TT-4.22-78.2274417.429884376157.9265301537590.13758781416432171115127.5WETL
2022-03-09 07:00:07FORECAST2022167-11825.5824.0924.835137.714881613870.06712.51715.37.8171TT-6.42-83.4274416.9458122792257.4196431774310.086128410274275171115127.5WETL
2022-03-09 03:00:07FORECAST2022167-11825.5924.0324.81138.010408737640.04382.49385.377.8638TT-6.41-85.4174417.0815925632757.5616010666040.086324247811299171115127.5WETL