MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Friday, November 18, 2022

[ Thursday, November 17, 2022 | Index | Today | Saturday, November 19, 2022 ]

DAY 49 OF WATER YEAR 2023, FORECAST LAST UPDATED 11/19/2022 07:00:20 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): 38.13°F
MINIMUM TEMPERATURE (Tmin): 16.96°F
AVERAGE TEMPERATURE (Tavg): 27.54°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.588
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: 6
18-DAY CUMULATIVE DD32: 41

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: 0.00 in
DAY 1-3 (P3): 0.00 in
DAY 4-15 (P15): 11.08 in
18-DAY TOTAL (P18): 11.08 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: 25 in
SWE DAY: 44
CALCULATED SNOW DENSITY: 327.83 kg/m3
CALCULATED SWE: 8.18 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: 129

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 3
D1: 4
D2: 1
D3: 1
D4: 2
D5: 2
HSdry: 8.0

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
2022-11-19 07:00:20OBSERVATION20234912938.1300816.9599227.54524.9490970833330011.0811.08TT6.1300841.1300844327.83329462711 8.17914469480070.5883795771472116 3411228WETL
2022-11-19 03:00:34OBSERVATION20234912938.1300816.9599227.54524.9490970833330011.0811.08TT6.1300841.1300844327.83329462711 8.17914469480070.5883795771472116 3411228WETL
2022-11-18 11:00:01FORECAST20234912940.1529.5134.8324.8313999404040.00250.002511.0811.0825TT8.1543.1544327.752545915528.13855454911390.67329329512705163411228WETL
2022-11-18 07:00:33FORECAST20234912940.3422.731.5224.802717069030.00260.002611.0811.0826TT8.3443.3444327.732863742688.12866549363250.68091210885356163411228WETL
2022-11-18 03:00:21FORECAST20234912940.719.9230.3124.7798351223350.0030.00311.0811.083TT8.743.744327.717161133348.1207772196440.69513828126174163411228WETL
2022-11-17 23:00:02FORECAST20234912940.6520.7830.71524.7406613333330011.0811.08TT8.6537.6544327.690276218598.10727414615070.69317931069093163411228WETL
2022-11-17 19:00:02FORECAST20234912940.524.2432.3724.7394040011.0811.08TT8.537.544327.689413268248.10684078136590.68726941769817163411228WETL
2022-11-17 15:00:02FORECAST20234912940.6223.9332.27524.7830280011.0811.08TT8.6237.6244327.719352282768.12187788376560.69200127225843163411228WETL
2022-11-17 11:00:06FORECAST20234912940.2824.4332.35524.7816389434270011.0811.08TT8.2837.2844327.718399028728.12139903984770.67851420951935163411228WETL
2022-11-17 07:00:19FORECAST20234912940.1923.0631.62524.9086284488770011.0811.08TT8.1937.1944327.805532954148.16518622384070.67490340646328163411228WETL
2022-11-17 03:00:33FORECAST20234912940.0722.9331.524.9356210011.0811.08TT8.0731.0744327.824050287678.17449627265820.67006340349954163411228WETL
2022-11-16 23:00:04FORECAST20234912939.9423.8731.90525.6185906666670011.0811.08TT7.9435.9444328.292156498938.41038237642330.66478779424738163411228WETL
2022-11-16 19:00:04FORECAST20234912939.7823.8631.8225.6707426666670011.0811.08TT7.7833.7844328.327868027768.42842021043590.65824996578028163411228WETL
2022-11-16 15:00:03FORECAST20234912939.272230.63525.7530160011.0811.08TT7.2733.2744328.384195780628.45688344808550.63710038336545163411228WETL
2022-11-16 11:00:11FORECAST20234912939.1221.9330.52524.8838160011.0811.08TT7.1234.1244327.788510086638.15662897190970.63079601114519163411228WETL
2022-11-16 07:00:10FORECAST20234912939.2922.0430.66525.046345250011.0811.08TT7.2931.2944327.899995658468.21269649873530.63793821026045163411228WETL
2022-11-16 03:00:30FORECAST20234912939.3122.0430.67525.0608319166670011.0811.08TT7.3127.3144327.909930431848.21769565035820.63877537703162163411228WETL
2022-11-15 23:00:07FORECAST20234912939.0521.7730.4125.8086493333330011.0811.08TT7.0529.0544328.422278008828.47613540638430.62784177271402163411228WETL
2022-11-15 19:00:02FORECAST20234912938.3621.7530.05525.7788013333330011.0811.08TT6.3629.3644328.40184707198.46580597316630.5983439142796163411228WETL
2022-11-15 15:00:04FORECAST20234912939.5223.6931.60525.7299840011.0811.08TT7.5230.5244328.368428299898.44891440626130.647524860682163411228WETL
2022-11-15 11:00:04FORECAST20234912935.422.9129.15525.0398173333330011.0811.08TT3.428.444327.895518776028.21044389457020.46748391484907162411227WETL
2022-11-15 07:00:10FORECAST20234912935.7923.3429.56525.10610850011.0811.08TT3.7927.7944327.940978185348.23332177991740.48483201957603162411227WETL
2022-11-15 03:00:11FORECAST20234912940.921.5431.2225.0587671666670011.0811.08TT8.927.944327.908514474668.21698311618790.70291799114019164411229WETL
2022-11-14 23:00:03FORECAST20234912941.7622.3932.07525.8449306666670011.0811.08TT9.7640.7644328.447110472688.48869279783340.73528985642029164411229WETL
2022-11-14 19:00:03FORECAST20234912942.7923.6733.2325.8343253333330011.0811.08TT10.7941.7944328.439851975138.48502198835740.7715538150489164411229WETL
2022-11-14 15:00:14FORECAST20234912946.2228.9437.5825.1966386666670011.0811.08TT14.2254.2244328.003047214298.26457426222420.870208330115231654112210WETL
2022-11-14 11:00:16FORECAST20234912944.9124.1734.5424.817580011.0811.08TT12.9149.9144327.743062857928.13378968192160.83668017343771164411229WETL
2022-11-14 07:00:11FORECAST20234912937.1625.3331.24524.4711028333330011.0811.08TT5.1644.1644327.505206056358.0144135758570.54578210674965163411228WETL
2022-11-14 03:00:14FORECAST20234912942.822.4532.62524.5254631162650011.0811.08TT10.841.844327.542538272228.03313244140320.77189167737993164411229WETL
2022-11-13 23:00:05FORECAST20234912941.6722.5432.10525.0130133333330011.0811.08TT9.6759.6744327.877135661968.20119516600770.73198781463587164411229WETL
2022-11-13 19:00:05FORECAST20234912941.6722.732.18525.1028306666670011.0811.08TT9.6759.6744327.938730579068.23219042276780.73198781463587164411229WETL
2022-11-13 15:00:05FORECAST20234912942.1623.9533.05525.1325693333330011.0811.08TT10.1655.1644327.959121660968.24245536364310.7497113938013164411229WETL
2022-11-13 11:00:05FORECAST20234912943.1923.7733.4824.7821013333330011.0811.08TT11.1947.1944327.718716348828.12155843738640.78484761181463164411229WETL
2022-11-13 07:00:15FORECAST20234912943.223.8833.5424.8486645350190011.0811.08TT11.258.244327.764392180938.14450742782850.78517410983615164411229WETL
2022-11-13 03:00:12FORECAST20234912942.6823.8533.26525.3142680011.0811.08TT10.6848.6844328.083674577348.30519806467560.76781885857774164411229WETL
2022-11-12 23:00:18FORECAST20234912942.4224.5833.526.1087893333330011.0811.08TT10.4276.4244328.627637570818.58006975844720.75885737156968164411229WETL
2022-11-12 19:00:04FORECAST20234912942.4924.5833.53525.6940333333330011.0811.08TT10.4972.4944328.343814983328.43647692697510.76128838782965164411229WETL
2022-11-12 15:00:04FORECAST20234912941.8523.932.87526.0523186666670011.0811.08TT9.8565.8544328.589011586568.56050564021810.7385711106985164411229WETL
2022-11-12 11:00:03FORECAST20234912939.8221.6230.7225.984302228880.00040.030411.0811.1104TT7.8259.8244328.542480929138.53694711948860.65988897081487163411228WETL
2022-11-12 07:00:12FORECAST20234912939.8921.6230.75526.5379643429620.00040.030411.0811.1104TT7.8940.8944328.92101265768.72889410555820.66274996101089163411228WETL
2022-11-12 03:00:28FORECAST20234912940.0820.330.1926.63341528290400.0411.0811.12TT8.0849.0844328.986217467788.76202655217090.67046783981437163411228WETL
2022-11-11 23:00:05FORECAST20234912930.0818.2924.18528.53918603479100.3411.0911.43TT-1.9261.0844330.284791530519.42605910995150.249547764076391624122214WETL
2022-11-11 19:00:02FORECAST20234912926.0618.0622.0628.33045644067100.3411.0911.43TT-5.9455.0644330.142871509589.35309824050.130244304216951614122212WETL
2022-11-11 15:00:02FORECAST20234912924.9418.1421.5428.20649596578400.3411.0911.43TT-7.0652.9444330.058552331889.30979522482170.10555481668481614122212WETL
2022-11-11 11:00:06FORECAST20234912921.4817.1419.3131.90298295013400.5411.0911.63TT-10.5247.4844332.5615674035810.6097060147460.050711372763045161413129WETL
2022-11-11 07:00:11FORECAST20234912921.517.1219.3132.14051543642900.5411.0911.63TT-10.531.544332.7216064242710.6938439273130.050945643815569161413129WETL
2022-11-11 03:00:08FORECAST20234912919.6317.7818.70531.6394291371280.00030.510311.1111.6203TT-12.3737.6344332.3838833096410.5164363222990.032483000690706161413129WETL