MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Saturday, November 13, 2021

[ Friday, November 12, 2021 | Index | Today | Sunday, November 14, 2021 ]

DAY 44 OF WATER YEAR 2022, FORECAST LAST UPDATED 11/14/2021 07:00:09 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): 43.96°F
MINIMUM TEMPERATURE (Tmin): 27.17°F
AVERAGE TEMPERATURE (Tavg): 35.56°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.758
Maximum Percentile on this day is based on 87 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 12
18-DAY CUMULATIVE DD32: 108

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: 1.08 in
DAY 1-3 (P3): 9.95 in
DAY 4-15 (P15): 11.35 in
18-DAY TOTAL (P18): 21.30 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: 16 in
SWE DAY: 49
CALCULATED SNOW DENSITY: 341.42 kg/m3
CALCULATED SWE: 5.46 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: 124

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 4
D1: 5
D2: 1
D3: 5
D4: 1
D5: 2
HSdry: 25.0

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
2021-11-14 07:00:09OBSERVATION20224412443.9599227.1700635.5649937.7837170833331.07999999999999.949999999999911.3521.3TT11.95992107.9599249341.4152905325 12.8999387454040.7576720936503887 45151225WETL
2021-11-14 03:00:04OBSERVATION20224412443.9599227.1700635.5649937.7837170833331.07999999999999.949999999999911.3521.3TT11.95992107.9599249341.4152905325 12.8999387454040.7576720936503887 45151225WETL
2021-11-13 11:00:02FORECAST20224412441.2335.4438.33513.3964253333331.04869.918611.3521.2686TT9.23105.2349325.025284664044.35417695744720.650851791688398735153267.5WETH
2021-11-13 07:00:11FORECAST20224412441.3430.5935.96513.6488286918871.04049.910411.3521.2604TT9.34105.3449325.200169814544.43860140837140.655480803853768735153267.5WETH
2021-11-13 03:00:13FORECAST20224412440.130.7335.41513.9130844769891.02779.897711.3521.2477TT8.1104.149325.38314716924.52708321395360.602109257976338735153267.5WETH
2021-11-12 23:00:02FORECAST20224412441.3829.2635.3224.5176851322220.99167.811611.3519.1616TT9.38101.3849332.625597393948.15520966382180.657158372032538735152245WETL
2021-11-12 19:00:02FORECAST20224412441.5430.7136.12524.5861524266190.94927.769211.3519.1192TT9.54101.5449332.671726439128.17911777425880.663837444565768735152245WETL
2021-11-12 15:00:01FORECAST20224412441.4929.2335.3624.7001277111071.01127.831211.3519.1812TT9.49101.4949332.748498174538.218930400590.661755658857378735152245WETL
2021-11-12 11:00:04FORECAST20224412441.7530.7336.2424.1483893240120.97367.793611.3519.1436TT9.75101.7549332.376650253318.02636075252780.672525603286538735152245WETL
2021-11-12 07:00:05FORECAST20224412442.5731.4537.0124.0731089347091.02778.557711.3519.9077TT10.57103.5749332.325874098068.00011696898520.705530850646638745152250WETL
2021-11-12 03:00:13FORECAST20224412442.9431.8337.38523.9074667005310.96749.237411.3520.5874TT10.94104.9449332.214115248947.94239789776040.719903696897798745152250WETL
2021-11-11 23:00:02FORECAST20224412442.1332.2737.231.4481682153990.86116.221111.3517.5711TT10.13102.1349337.254474401510.6060354423740.688009535693068735151222.5WETL
2021-11-11 19:00:03FORECAST20224412444.0932.1638.12531.3053333333330.83996.389911.3517.7399TT12.09108.0949337.1598948925910.5549028962440.762282814856868745151225WETL
2021-11-11 15:00:02FORECAST20224412443.5932.0837.83531.3565560.79516.125111.3517.4751TT11.59104.5949337.1938164267210.5732367876380.744299868747478745151225WETL
2021-11-11 11:00:02FORECAST20224412443.6332.4838.05530.6978226666670.73576.155711.3517.5057TT11.63104.6349336.7572422269310.3377141035980.745764148076138745151225WETL
2021-11-11 07:00:16FORECAST20224412443.0332.6637.84530.56895250.89476.424711.3517.7747TT11.03104.0349336.671748318110.2917026824280.723347741595158745151225WETL
2021-11-11 03:00:06FORECAST20224412444.2132.2438.22530.6075471666670.59525.975211.3517.3252TT12.21104.2149336.6973553868810.3054801858960.766493281289698745151225WETL
2021-11-10 23:00:04FORECAST20224412443.7433.138.4226.5995866666670.59386.113810.7716.8838TT11.74110.7449334.024673926478.88491826291220.749768165341548745152250WETL
2021-11-10 19:00:03FORECAST20224412441.9133.7837.84526.5319093333330.43176.451710.7717.2217TT9.91105.9149333.979309746388.86110876540030.679083354796418735152245WETL
2021-11-10 15:00:03FORECAST20224412442.3331.9337.1326.7945280.25576.015710.7716.7857TT10.33105.3349334.155299712128.95353353448480.696029793915518735152245WETL
2021-11-10 11:00:04FORECAST20224412442.7333.8338.2826.505354992680.16445.894410.7716.6644TT10.73105.7349333.961508216678.85176832917360.711787811497528745152250WETL
2021-11-10 07:00:08FORECAST20224412438.0734.1236.09526.860067084250.19445.704410.7516.4544TT6.07104.0749334.199201446658.97661297035970.510933452636958735152245WETL
2021-11-10 03:00:04FORECAST20224412442.2232.637.4127.3290318674070.22916.269110.8717.1391TT10.22102.2249334.51312706519.14191990962820.691629986132348735152245WETL
2021-11-09 23:00:04FORECAST20224412441.6832.0636.8727.1881102506340.45816.298110.4816.7781TT9.68102.6849334.418833254219.09221610840390.669639619141648735152245WETL
2021-11-09 19:00:02FORECAST20224412441.1732.2536.7127.4128373873110.44146.011410.4516.4614TT9.1799.1749334.569187213759.17149072389540.648317335494518735152245WETL
2021-11-09 15:00:05FORECAST20224412440.7633.4937.12527.3470192213690.54555.645510.5616.2055TT8.7699.7649334.525160377819.14826599088350.630827107317368735152245WETL
2021-11-09 11:00:02FORECAST20224412439.6831.0435.3631.2042118886270.67695.996910.5616.5569TT7.6898.6849337.0929155942510.5187187643580.58353073590688735151222.5WETL
2021-11-09 07:00:05FORECAST20224412440.4933.2236.85530.2209168443010.80155.441510.5415.9815TT8.49107.4949336.440717681910.1675469521010.619156812325678735151222.5WETL
2021-11-09 03:00:05FORECAST20224412437.9133.0835.49531.0277879653270.87765.507611.0316.5376TT5.91101.9149336.9760173771810.4556204165790.503658669763348735151222.5WETL
2021-11-08 23:00:02FORECAST20224412439.1533.1336.1435.6952017996551.30895.528911.216.7289TT7.15108.1549340.0510677688112.1381914861960.55982253155868735151222.5WETL
2021-11-08 19:00:02FORECAST20224412437.7332.9835.35536.0246345448491.30895.418911.216.6189TT5.73105.7349340.266734984712.2579847755930.495473204997468725151220WETL
2021-11-08 15:00:03FORECAST20224412439.4432.1435.7935.7568284732051.70665.946611.1917.1366TT7.44105.4449340.0914261548512.1605907902260.572827171239968735151222.5WETL
2021-11-08 11:00:07FORECAST20224412442.232.3537.27535.4809411553120.2584.86811.1716.038TT10.2109.249339.9107025062912.0603516336870.690827032585738735151222.5WETL
2021-11-08 07:00:09FORECAST20224412442.132.437.2535.104449426250.2584.32811.2215.548TT10.1102.149339.6638721793411.9237132228440.6867986514238735151222.5WETL
2021-11-08 03:00:16FORECAST20224412435.5830.8833.2336.256771295270.35644.146411.1815.3264TT3.5897.5849340.4185978273712.3424792460830.398810564636138725151220WETL
2021-11-07 23:00:04FORECAST20224412437.6427.6732.65512.2788642557760.68325.123210.6415.7632TT5.64108.6449324.249600685923.98141683181190.491380971869768725153260WETH
2021-11-07 19:00:04FORECAST20224412438.8730.0734.4711.5823262071780.60934.989310.5915.5793TT6.87107.8749323.765028053313.74995216938940.547204634031098735153267.5WETH
2021-11-07 15:00:04FORECAST20224412440.0930.135.09513.2308676060690.60934.959311.0215.9793TT8.09109.0949324.910512178914.29884797045910.601669413265978735153267.5WETH
2021-11-07 11:00:03FORECAST20224412439.1735.7337.4515.93827020762.20655.816511.1316.9465TT7.17105.1749326.781366878665.2083297241210.560721644689568735152245WETL
2021-11-07 07:00:05FORECAST20224412441.6937.339.49516.8192791669932.97926.229211.1117.3392TT9.6999.6949327.38738774025.50641987015490.670052525549418735152245WETL
2021-11-07 03:00:16FORECAST20224412441.6737.339.48517.4544090540232.97926.239211.0917.3292TT9.67103.6749327.823434961385.72196433131080.669226506230718735152245WETL
2021-11-07 00:00:05FORECAST20224412442.537.4639.9816.5540673049791.13373.053710.5413.5937TT10.5104.549327.205098738555.41657522705040.702773874647618745152250WETL
2021-11-06 20:00:03FORECAST20224412439.2835.3237.315.2115196827310.97532.825310.9513.7753TT7.28101.2849326.280434226844.96322124733170.565661047641558735153267.5WETH
2021-11-06 16:00:07FORECAST20224412439.2436.6137.92516.2259580596280.90842.708411.2613.9684TT7.24101.2449326.979408257255.30555416474420.563866044868898735152245WETL
2021-11-06 12:00:05FORECAST20224412436.4432.3134.37519.0993725712960.23442.434411.0113.4444TT4.4498.4449328.949516706426.28272937672380.437072778184858725152240WETL
2021-11-06 08:00:04FORECAST20224412434.4933.734.09517.7599608981750.23612.666110.9513.6161TT2.49103.4949328.032960521265.82585255217020.351721116414638725152240WETL
2021-11-06 04:00:14FORECAST20224412434.0433.6433.8419.6016549027080.22512.685111.313.9851TT2.04101.0449329.292424172226.45467646070.33287979980558725152240WETL