MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, May 15, 2022

[ Saturday, May 14, 2022 | Index | Today | Monday, May 16, 2022 ]

DAY 227 OF WATER YEAR 2022, FORECAST LAST UPDATED 05/16/2022 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:
L
LOW

MODEL USED FOR HAZARD CLASS DETERMINATION:

WET

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 45.89°F
MINIMUM TEMPERATURE (Tmin): 37.77°F
AVERAGE TEMPERATURE (Tavg): 41.83°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.343
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: 14
18-DAY CUMULATIVE DD32: 112

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: 0.75 in
DAY 1-3 (P3): 1.76 in
DAY 4-15 (P15): 7.13 in
18-DAY TOTAL (P18): 8.89 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: 168 in
SWE DAY: 134
CALCULATED SNOW DENSITY: 464.50 kg/m3
CALCULATED SWE: 78.03 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: -58

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
2022-05-16 04:00:05OBSERVATION2022227-5845.8900637.7700841.83007167.995070833330.751.767.138.89TT13.89006111.89006134464.50265748629 78.0341568466820.3434813451448916 21151210WETL
2022-05-16 00:00:02FORECAST2022227-5737.2737.2737.27171.971190666670.00471.01477.138.1447TT5.27103.27135466.3439669479480.1977272562550.12152239239359161114126WETL
2022-05-15 12:00:02FORECAST2022227-5745.3234.9640.14171.556106666670.47531.48537.138.6153TT13.32111.32135466.205192521779.9803477368060.32508953831252162114128WETL
2022-05-15 08:00:01FORECAST2022227-5741.8335.4638.645171.491982666670.46681.47687.138.6068TT9.83107.83135466.1837409882979.9467740290450.22275644695898161114126WETL
2022-05-15 04:00:05FORECAST2022227-5741.2234.8538.035171.4088240.5131.5237.138.653TT9.22107.22135466.1559165446779.9032374555650.20696240573362161115127.5WETL
2022-05-15 00:00:02FORECAST2022227-5840.1335.6137.87173.232753333330.38980.58987.137.7198TT8.13103.13134466.2655847781280.7724710356910.18044509033345161113124.5WETL
2022-05-14 20:00:02FORECAST2022227-5840.8635.4938.175173.2844680.42780.74787.137.8778TT8.86103.86134466.2828745145180.7995798477570.19796009734576161113124.5WETL
2022-05-14 16:00:02FORECAST2022227-5840.9234.6837.8173.282937333330.48930.80937.137.9393TT8.92103.92134466.2823628001780.798777452740.19944387165587161113124.5WETL
2022-05-14 12:00:02FORECAST2022227-5841.1134.6637.885173.0542120.44530.76537.137.8953TT9.11104.11134466.2058756928880.6788904478020.20418637529767161113124.5WETL
2022-05-14 08:00:02FORECAST2022227-5841.735.4638.58172.972485333330.42320.91327.138.0432TT9.7105.7134466.1785350338580.6360598138570.21933417287813161113124.5WETL
2022-05-14 04:00:07FORECAST2022227-5841.4835.6538.565172.586483583330.44781.05787.138.1878TT9.48105.48134466.0493261245180.4338143722110.21361188475033161114126WETL
2022-05-14 00:00:03FORECAST2022227-5842.5536.539.525168.9571240.41511.11517.138.2451TT10.55100.55134464.8282312886778.5360411125410.24225133208686161114126WETL
2022-05-13 20:00:03FORECAST2022227-5840.6736.3138.49168.9756560.53521.32527.138.4552TT8.67104.67134464.8344949997478.5457137240090.19330555555925161114126WETL
2022-05-13 16:00:01FORECAST2022227-5840.5835.5738.075169.0386320.50941.52947.138.6594TT8.58104.58134464.855778327978.5785848458430.19112422895679161115127.5WETL
2022-05-13 12:00:03FORECAST2022227-5841.0635.4738.265169.067077143820.61451.78457.138.9145TT9.06105.06134464.8653905141878.5934328395520.20293189436726161115127.5WETL
2022-05-13 08:00:03FORECAST2022227-5840.4135.8638.135169.032269605660.62721.78727.138.9172TT8.41104.41134464.8536282518378.5752638178320.18704524130291161115127.5WETL
2022-05-13 04:00:06FORECAST2022227-5840.5836.0338.305169.61759478210.58431.78437.138.9143TT8.58103.58134465.0512847780678.8808803743820.19112422895679161115127.5WETL
2022-05-13 00:00:03FORECAST2022227-5840.2635.6637.96168.558313528080.47271.56276.217.7727TT8.2695.26134464.6933641376578.3279297667330.18349111737053161115127.5WETL
2022-05-12 20:00:03FORECAST2022227-5843.3136.6439.975166.346321670620.40121.49126.748.2312TT11.31106.31134463.9428416574877.1751851751380.26379170285922162114128WETL
2022-05-12 16:00:02FORECAST2022227-5842.3836.2839.33166.365198292420.37731.43736.748.1773TT10.38106.38134463.9492642963977.1850113522890.23756677795767161114126WETL
2022-05-12 12:00:03FORECAST2022227-5839.8734.9237.395168.35964456330.42641.34646.748.0864TT7.87101.87134464.6261285527978.2242898579680.17444863394371161114126WETL
2022-05-12 08:00:03FORECAST2022227-5839.2134.0636.635169.299024510490.52631.53636.928.4563TT7.21100.21134464.9437442804678.7145223589380.15980166288093161115127.5WETL
2022-05-12 04:00:08FORECAST2022227-5839.7933.6736.73169.720272740970.48861.42866.958.3786TT7.79100.79134465.0859274731178.9345104587230.17262927075496161114126WETL
2022-05-12 00:00:03FORECAST2022227-5840.6633.4437.05173.120561016190.67941.76947.038.7994TT8.6691.66134466.2280677728480.7136646543280.19306243999548161115127.5WETL
2022-05-11 20:00:03FORECAST2022227-5840.6933.9337.31173.078547820960.63041.87047.058.9204TT8.69101.69134466.2140158482680.6916448367950.19379234562379161115127.5WETL
2022-05-11 16:00:03FORECAST2022227-5840.7733.3837.075172.494704621840.76481.92486.988.9048TT8.77102.77134466.0185857020580.3857382889640.19574695122736161115127.5WETL
2022-05-11 12:00:03FORECAST2022227-5839.0733.4436.255172.871352434360.46381.57386.948.5138TT7.0798.07134466.1446943986280.5830637507920.15680100868329161115127.5WETL
2022-05-11 08:00:03FORECAST2022227-5839.0634.9837.02172.551003243130.36161.40166.918.3116TT7.06101.06134466.0374431978980.415228372660.15658810058021161114126WETL
2022-05-11 04:00:08FORECAST2022227-5839.0634.9837.02172.711141418540.36161.47166.98.3716TT7.06101.06134466.0910675135780.4991202752560.15658810058021161114126WETL
2022-05-11 00:00:03FORECAST2022227-5844.0533.1438.595175.283839723740.32851.79856.898.6885TT12.0599.05134466.9495851286481.8487162387580.285664135886751621151210WETL
2022-05-10 20:00:04FORECAST2022227-5844.0334.5339.28176.203394777670.25211.802178.8021TT12.0397.03134467.2550851503282.3319322306180.285061832200581621151210WETL
2022-05-10 16:00:03FORECAST2022227-5844.1334.5239.325176.307106284360.24561.66567.058.7156TT12.13105.13134467.2894960453882.3864588448380.288079379433951621151210WETL
2022-05-10 12:00:03FORECAST2022227-5843.5634.0538.805176.720554176050.18531.39537.088.4753TT11.56100.56134467.4265856691582.6038852560730.27108468462488162114128WETL
2022-05-10 08:00:04FORECAST2022227-5844.2535.139.675176.573570477120.14771.33777.078.4077TT12.2593.25134467.3778658139982.526578528750.29172018815909162114128WETL
2022-05-10 04:00:08FORECAST2022227-5844.135.2239.66176.218156890680.14771.26777.068.3277TT12.199.1134467.2599836897882.3396931145840.28717253552629162114128WETL
2022-05-10 00:00:03FORECAST2022227-5844.334.8939.595177.864110690650.26531.68536.638.3153TT12.391.3134467.8050132626183.2057226605810.293243488441471621151210WETL
2022-05-09 20:00:03FORECAST2022227-5843.8335.6839.755176.733441984260.1621.6326.848.472TT11.83101.83134467.4308566507582.6106641855390.279072303914741621151210WETL
2022-05-09 16:00:02FORECAST2022227-5843.8535.739.775176.670420274520.1621.8126.858.662TT11.8597.85134467.4099701123482.5775158602470.27966849630141621151210WETL
2022-05-09 12:00:04FORECAST2022227-5841.934.3538.125178.254548004650.27781.69786.898.5878TT9.993.9134467.9339659106483.4113575894250.22461171985208161115127.5WETL
2022-05-09 08:00:04FORECAST2022227-5842.536.0939.295178.305862976420.16621.17626.98.0762TT10.588.5134467.9509045832883.4383898723170.24086835500558161114126WETL
2022-05-09 04:00:07FORECAST2022227-5843.1736.0839.625177.628601616040.08721.04726.837.8772TT11.1793.17134467.7271680648783.0817228011910.25975172739757162114128WETL
2022-05-09 00:00:03FORECAST2022227-5845.9437.8441.89179.05808391810.2330.8236.727.543TT13.9486.94134468.19895363683.8348075305240.34511114221237162113126WETL
2022-05-08 20:00:04FORECAST2022227-5845.5238.8142.165178.204719589930.1490.7396.917.649TT13.5293.52134467.9175158259983.3851096989880.33149661765682162113126WETL
2022-05-08 16:00:03FORECAST2022227-5845.5438.8142.175179.04640563420.07930.66936.967.6293TT13.5492.54134468.1951062774183.8286509144920.33214008375813162113126WETL
2022-05-08 12:00:04FORECAST2022227-5846.4937.9442.215180.704637702580.00020.68027.077.7502TT14.4992.49134468.7402626648684.7035393414650.36324470656722162113126WETL
2022-05-08 08:00:04FORECAST2022227-5841.4838.2539.865181.2251843259100.717.127.83TT9.4884.48134468.9109233266884.9784685123120.21361188475033161113124.5WETL
2022-05-08 04:00:09FORECAST2022227-5841.4838.6540.065182.1294051707300.717.187.89TT9.4889.48134469.2068352971885.4563618147150.21361188475033161113124.5WETL