MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Friday, May 13, 2022

[ Thursday, May 12, 2022 | Index | Today | Saturday, May 14, 2022 ]

DAY 225 OF WATER YEAR 2022, FORECAST LAST UPDATED 05/14/2022 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): 34.86°F
MINIMUM TEMPERATURE (Tmin): 21.04°F
AVERAGE TEMPERATURE (Tavg): 27.95°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.086
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: 3
18-DAY CUMULATIVE DD32: 85

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: 0.20 in
DAY 1-3 (P3): 1.21 in
DAY 4-15 (P15): 6.55 in
18-DAY TOTAL (P18): 7.76 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: 174 in
SWE DAY: 132
CALCULATED SNOW DENSITY: 465.40 kg/m3
CALCULATED SWE: 80.82 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: -60

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 1
D1: 1
D2: 1
D3: 4
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
2022-05-14 04:00:05OBSERVATION2022225-6034.8600221.0399827.95173.646306250.199999999999931.20999999999996.557.7599999999999TT2.8600284.86002132465.40060569429 80.8150961053270.08629057959898516 1114126WETL
2022-05-14 00:00:02FORECAST2022225-5930.4630.4630.461700.03261.04266.557.5926TT-1.5480.46133464.674964851278.9947440247050.038420429451819161114126WETL
2022-05-13 12:00:02FORECAST2022225-5935.6528.1831.915169.964539810480.12271.13276.557.6827TT3.6585.65133464.6629648809178.976226992960.098305963971891161114126WETL
2022-05-13 08:00:02FORECAST2022225-5935.6621.2928.475169.989646938990.11671.12676.557.6767TT3.6685.66133464.6714614163778.9893376687950.098465517385308161114126WETL
2022-05-13 04:00:05FORECAST2022225-5935.3121.1628.235170.568521448770.13571.14576.557.6957TT3.3185.31133464.8672088899179.2917124903690.092992901023896161114126WETL
2022-05-13 00:00:02FORECAST2022225-6034.8419.327.07169.501586861420.25680.34686.556.8968TT2.8475.84132463.9983384663678.6484546711090.086000980933796161112123WETL
2022-05-12 20:00:02FORECAST2022225-6034.4617.626.03167.513947003960.27350.89356.557.4435TT2.4684.46132463.3206124906377.6126645265970.080640697350046161113124.5WETL
2022-05-12 16:00:01FORECAST2022225-6034.9217.8826.4167.479359625750.30750.92756.557.4775TT2.9284.92132463.3087889109277.5946592757820.087162568951932161113124.5WETL
2022-05-12 12:00:03FORECAST2022225-6033.3819.726.54169.450845896630.29980.91986.557.4698TT1.3883.38132463.9810798335178.6219864578210.066779802824913161113124.5WETL
2022-05-12 08:00:02FORECAST2022225-6033.4419.3126.375170.202445843830.33391.13396.557.6839TT1.4483.44132464.2364957247679.0141870223220.067498202392488161114126WETL
2022-05-12 04:00:08FORECAST2022225-6032.9519.2926.12170.499894971080.29921.12926.557.6792TT0.9582.95132464.3374431414679.169485286760.06180260511398161114126WETL
2022-05-12 00:00:02FORECAST2022225-6031.3519.1125.23174.061538349520.26751.17756.557.7275TT-0.6572.35132465.5402777502981.0326569088790.045777232409066161114126WETL
2022-05-11 20:00:02FORECAST2022225-6033.5619.1626.36173.989731820960.25591.18596.557.7359TT1.5683.56132465.5161346465280.9950274254770.068952840099533161114126WETL
2022-05-11 16:00:02FORECAST2022225-6034.0720.4227.245173.486029955180.18791.04796.557.5979TT2.0783.07132465.3466539726780.7311435506440.075404901433171161114126WETL
2022-05-11 12:00:03FORECAST2022225-6032.420.3826.39173.71032176770.23961.05966.557.6096TT0.481.4132465.4221482668480.8486311332440.055862785510758161114126WETL
2022-05-11 08:00:02FORECAST2022225-6034.5820.4527.515173.501875243130.23221.02226.557.5722TT2.5882.58132465.35198874480.7394426952050.082305537583683161114126WETL
2022-05-11 04:00:07FORECAST2022225-6034.1120.1227.115173.784740085210.24151.02156.557.5715TT2.1183.11132465.4471871985480.8876184506890.075929716598271161114126WETL
2022-05-11 00:00:03FORECAST2022225-6035.5921.2828.435176.368262390410.52391.34396.57.8439TT3.5976.59132466.3135163826582.2429046135710.097352605471069161114126WETL
2022-05-10 20:00:03FORECAST2022225-6034.3820.3627.37177.247364111010.58571.48576.538.0157TT2.3875.38132466.607010463182.7048626803020.079544968397105161114126WETL
2022-05-10 16:00:02FORECAST2022225-6034.1719.6926.93177.522072951030.43911.38916.537.9191TT2.1781.17132466.6985895651982.8493010629330.076722130310686161114126WETL
2022-05-10 12:00:02FORECAST2022225-6033.4919.7526.62177.955856842720.20811.18816.537.7181TT1.4978.49132466.8430691243583.0774583771090.068101403002122161114126WETL
2022-05-10 08:00:03FORECAST2022225-6033.5720.6527.11177.858291810450.18511.15516.537.6851TT1.5770.57132466.8105872025983.0261336388850.069075138601882161114126WETL
2022-05-10 04:00:07FORECAST2022225-6034.8219.0526.935177.554811557350.14341.10346.537.6334TT2.8275.82132466.7094993039482.8665172009370.085712395896948161114126WETL
2022-05-10 00:00:03FORECAST2022225-6034.6120.5327.57179.096516023980.14860.95866.257.2086TT2.6167.61132467.2222274765883.677873150020.082725750331216161113124.5WETL
2022-05-09 20:00:03FORECAST2022225-6034.6121.9828.295178.117492650930.10080.96086.417.3708TT2.6174.61132466.8968641527783.1624987694720.082725750331216161113124.5WETL
2022-05-09 16:00:02FORECAST2022225-6033.2122.9528.08178.093010941180.1371.0076.417.417TT1.2171.21132466.8887176603883.1496175026060.064776345072928161114126WETL
2022-05-09 12:00:03FORECAST2022225-6031.7921.726.745179.465469337990.13161.03166.427.4516TT-0.2170.79132467.3446336646683.8722240232170.049810159550642161114126WETL
2022-05-09 08:00:03FORECAST2022225-6032.5221.7127.115179.530888309750.11831.01836.437.4483TT0.5265.52132467.3663254888883.9066915810830.057118888089548161114126WETL
2022-05-09 04:00:07FORECAST2022225-6034.4922.7428.615179.00018828270.12290.84296.547.3829TT2.4970.49132467.1902503123483.6271427697520.081054511692282161113124.5WETL
2022-05-09 00:00:03FORECAST2022225-6031.8221.8126.815180.470249570130.22440.97446.47.3744TT-0.1859.82132467.6774046509584.4018579356680.050095107195944161113124.5WETL
2022-05-08 20:00:03FORECAST2022225-6031.2421.8126.525179.618399589930.21750.96756.597.5575TT-0.7666.24132467.3953371135983.9528024281410.044811004429941161113124.5WETL
2022-05-08 16:00:03FORECAST2022225-6031.421.2126.305180.263230967530.22441.04446.577.6144TT-0.665.4132467.6089120556284.2926933163580.04622191004838161114126WETL
2022-05-08 12:00:03FORECAST2022225-6036.2521.9129.08181.740735035910.26041.15046.617.7604TT4.2564.25132468.096959950885.0722855695320.10821643846492161114126WETL
2022-05-08 08:00:03FORECAST2022225-6036.321.7529.025182.166872325910.2611.1616.657.811TT4.360.3132468.2373812877885.2973392552710.10907355822947161114126WETL
2022-05-08 04:00:08FORECAST2022225-6036.321.7529.025182.843133170730.2611.1516.727.871TT4.365.3132468.4599119226185.6546780608140.10907355822947161114126WETL
2022-05-08 00:00:03FORECAST2022225-6036.6322.0829.355174.889161529891.07051.87055.787.6505TT4.6356.63132465.8182271951181.4665591794910.11485266935575161115127.5WETL
2022-05-07 20:00:04FORECAST2022225-6037.062330.03175.938010925731.14691.88696.128.0069TT5.0664.06132466.1696349730282.0169583311290.1227042497937161115127.5WETL
2022-05-07 16:00:03FORECAST2022225-6037.0922.9430.015176.818238088821.14691.88696.278.1569TT5.0965.09132466.4638256976282.4793117920240.12326571144441161115127.5WETL
2022-05-07 12:00:04FORECAST2022225-6033.7621.1127.435176.444520082940.16250.96256.47.3625TT1.7658.76132466.339001497782.2829613152170.071430588893477161113124.5WETL
2022-05-07 08:00:03FORECAST2022225-6033.821.0627.43178.045693969570.16250.97256.657.6225TT1.853.8132466.8729711090483.1247221367430.071934211559707161113124.5WETL
2022-05-07 04:00:07FORECAST2022225-6034.321.9728.135179.124037062020.14910.99916.87.7991TT2.354.3132467.231361982783.6923678003280.078460504858966161114126WETL
2022-05-07 00:00:04FORECAST2022225-6032.3622.2327.295180.288065091520.29151.06155.536.5915TT0.3666.36132467.6171303855984.3057876408660.055448945465697161114126WETL
2022-05-06 20:00:04FORECAST2022225-6029.7823.2226.5178.812717342670.51051.24056.557.7905TT-2.2257.78132467.1279946208783.5284260649930.033472543106996161114126WETL
2022-05-06 16:00:04FORECAST2022225-6028.5823.2225.9179.545705719350.4371.1676.757.917TT-3.4259.58132467.3712381905783.914498793850.026021138692329161114126WETL
2022-05-06 12:00:03FORECAST2022225-6027.1723.3225.245177.139472773440.04040.60046.657.2504TT-4.8367.17132466.5710254769182.6481454643450.019086948296416161113124.5WETL
2022-05-06 08:00:04FORECAST2022225-6026.6923.3225.005178.059434438080.02030.58036.817.3903TT-5.3160.69132466.8775439760783.131951432220.017116217232723161113124.5WETL
2022-05-06 04:00:08FORECAST2022225-6027.4326.0526.74177.096591244010.01730.57736.687.2573TT-4.5750.43132466.5567204661782.6256048165450.020232601477514161113124.5WETL