MOUNT RAINIER
GEOLOGY & WEATHER
Hello guest! [ Log In ]
MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Sunday, July 5, 2020

[ Saturday, July 4, 2020 | Index | Today | Monday, July 6, 2020 ]

DAY 279 OF WATER YEAR 2020, FORECAST LAST UPDATED 07/06/2020 12:00:02 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:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 42.08°F
MINIMUM TEMPERATURE (Tmin): 42.08°F
AVERAGE TEMPERATURE (Tavg): 42.08°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.060
Maximum Percentile on this day is based on 94 years of historic (1917-2017) records:

DEBRIS FLOW HAZARD MODEL:


Click to zoom in
Degree Days above 32°F
(DD32)
TODAY'S DD32: 10
18-DAY CUMULATIVE DD32: 397

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): 1.21 in
18-DAY TOTAL (P18): 1.21 in

PRECIP THRESHOLD A (PA) EXCEEDED: False
P3 > (-0.67 * P15 + 2.5)

PRECIP THRESHOLD B (PB) EXCEEDED: False
P3 > (-0.67 * P15 + 4.5)
Snow at Paradise DEPTH: 52 in
SWE DAY: 186
CALCULATED SNOW DENSITY: 451.45 kg/m3
CALCULATED SWE: 23.45 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: -6

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: 2
D3: 1
D4: 1
D5: 2
HSdry: 2.0

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
2020-07-06 00:00:02FORECAST2020279-642.0842.0842.0851.9448960.00020.00021.211.2102FF10.08397.08187451.447717866623.4504047540180.060060886647274941121122DRYL
2020-07-05 12:00:03FORECAST2020279-658.3944.9451.66551.5235626666670.01660.01661.211.2266FF26.39413.39187451.2909026911723.2521151057050.50042016772831943131123.5DRYL
2020-07-05 07:54:09FORECAST2020279-657.8542.8650.35551.2367813333330.01350.01351.211.2235FF25.85412.85187451.1840701150523.1172195415680.47990048008668942131123DRYL
2020-07-05 04:00:02FORECAST2020279-658.8840.8949.88551.255475250.01960.01961.211.2296FF26.88413.88187451.1910363958923.1260109990110.51904037284242943131123.5DRYL
2020-07-05 00:00:01FORECAST2020279-760.2639.745051.7508493333330.01450.01451.211.2245FF28.26405.26186450.8176646050123.3301970377790.57112749598508943131123.5DRYL
2020-07-04 20:00:03FORECAST2020279-759.9139.1649.53552.8337786666670.02360.05361.211.2636FF27.91416.91186451.2216793301923.8397463353330.55799743139212943131123.5DRYL
2020-07-04 16:00:03FORECAST2020279-759.5339.749.61552.7904826666670.02360.05361.211.2636FF27.53416.53186451.205547958423.8193586586020.54366989757869943131123.5DRYL
2020-07-04 12:00:02FORECAST2020279-759.7440.2349.98551.5499320.0130.0431.211.253FF27.74416.74186450.7425849167823.2357496019640.55159597985027943131123.5DRYL
2020-07-04 08:00:02FORECAST2020279-759.4242.6651.0451.3236666666670.02350.05351.211.2635FF27.42411.42186450.6579871905623.1294203152390.53951099122332943131123.5DRYL
2020-07-04 04:00:03FORECAST2020279-759.3442.7151.02551.229301250.02320.06321.211.2732FF27.34416.34186450.6226907937823.085085576760.53648358868001943131123.5DRYL
2020-07-04 00:00:02FORECAST2020279-759.9343.2851.60551.7075733333330.01890.04891.211.2589FF27.93406.93186450.8014962731323.3098514273190.55874958171106943131123.5DRYL
2020-07-03 20:00:02FORECAST2020279-759.8542.7351.2952.8720106666670.01540.08541.211.2954FF27.85418.85186451.2359224647223.8577505057380.55573973627625943131123.5DRYL
2020-07-03 16:00:02FORECAST2020279-759.742.4551.07552.8404133333330.01250.07251.211.2825FF27.7418.7186451.2241511402523.8428706522330.55008773825994943131123.5DRYL
2020-07-03 12:03:10FORECAST2020279-759.3742.350.83551.6471493333330.02730.08731.211.2973FF27.37419.37186450.778918309423.2814461102440.53761912175701943131123.5DRYL
2020-07-03 08:00:03FORECAST2020279-759.3741.9550.6651.4618293333330.01040.08041.211.2904FF27.37418.37186450.7096502316923.194343099110.53761912175701943131123.5DRYL
2020-07-03 04:00:05FORECAST2020279-759.541.8850.6951.5907785833330.01060.07061.211.2806FF27.5415.5186450.7578517539523.2549485245370.54253610530227943131123.5DRYL
2020-07-03 00:00:03FORECAST2020279-758.7541.0249.88551.2039666666670.00680.06681.181.2468FF26.75416.75186450.6132132173223.0731839491390.51410269499602943131123.5DRYL
2020-07-02 20:00:01FORECAST2020279-758.7641.2650.0152.2090506666670.00450.07451.211.2845FF26.76427.76186450.9887440702323.5456941892590.51448260281284943131123.5DRYL
2020-07-02 16:00:03FORECAST2020279-759.6241.8450.7352.0858866666670.00290.06291.211.2729FF27.62429.62186450.9427776686923.4877544108030.54706910524174943131123.5DRYL
2020-07-02 12:00:01FORECAST2020279-755.0441.748.3751.0736786666670.00090.04091.211.2509FF23.04425.04186450.564463311123.011984617770.37517849351774942131123DRYL
2020-07-02 08:00:03FORECAST2020279-755.5941.7948.6950.9703586666670.00160.02161.221.2416FF23.59423.59186450.5257925596522.963461235350.39521246635637942131123DRYL
2020-07-02 04:00:04FORECAST2020279-757.9741.7949.8850.8079799166670.00140.03141.261.2914FF25.97430.97186450.4649967065822.8872165058290.48445772488913942131123DRYL
2020-07-02 00:00:03FORECAST2020279-759.6139.7449.67551.3820906666670.00120.01120.910.9212FF27.61430.61186450.6798358364723.1568721865880.54669158114584943131123.5DRYL
2020-07-01 20:03:08FORECAST2020279-761.3838.5949.98552.2202773333330.00160.03161.041.0716FF29.38445.38186450.9929332926923.5509760519180.61254962752942943131123.5DRYL
2020-07-01 16:00:03FORECAST2020279-760.0741.9150.9952.1161920.00390.023911.0239FF28.07445.07186450.9540893458423.5020099035330.56400855375395943131123.5DRYL
2020-07-01 12:00:03FORECAST2020279-761.4740.4150.9451.5484786666670.00090.000911.0009FF29.47440.47186450.7420416890923.235066520180.61582987510388943131123.5DRYL
2020-07-01 08:00:03FORECAST2020279-761.4740.3950.9351.5296733333330.00090.00091.031.0309FF29.47436.47186450.7350124408823.2262279509750.61582987510388943131123.5DRYL
2020-07-01 04:00:03FORECAST2020279-760.1239.885051.5192183333330.00420.01421.091.1042FF28.12444.12186450.7311043197323.2213141730730.56588406876652943131123.5DRYL
2020-07-01 00:00:02FORECAST2020279-760.9940.1850.58552.1667413333330.00190.00191.061.0619FF28.99437.99186450.9729552999323.525789507460.59824504216109943131123.5DRYL
2020-06-30 20:00:03FORECAST2020279-760.9840.1650.5753.1723720.00190.00191.161.1619FF28.98447.98186451.3477724265523.9992316568360.59787643178144943131123.5DRYL
2020-06-30 16:00:03FORECAST2020279-762.6341.151.86552.4631813333330.00110.01111.191.2011FF30.63452.63186451.0835434955523.6652777388890.65729232098523943131123.5DRYL
2020-06-30 12:00:02FORECAST2020279-764.0243.9353.97551.5033986666670.00130.00131.171.1713FF32.02455.02186450.7251906672223.2138791840430.70455396160833944131124DRYL
2020-06-30 08:00:02FORECAST2020279-764.0343.9253.97551.3803440.00130.00131.381.3813FF32.03444.03186450.6791826878523.1560514401410.70488291400134944131124DRYL
2020-06-30 04:00:04FORECAST2020279-763.8944.0453.96551.43264050.0060.0061.431.436FF31.89452.89186450.698737188123.18062612360.70026233511238944131124DRYL
2020-06-29 23:58:49FORECAST2020279-761.8142.3752.0952.0227693333330.00720.06721.591.6572FF29.81456.81186450.9192158881623.4580663561170.62814543773091943131123.5DRYL
2020-06-29 19:53:57FORECAST2020279-761.8242.3752.09553.2860986666670.00720.06721.691.7572FF29.82447.82186451.3901002294224.0528174179810.62850575282493943131123.5DRYL
2020-06-29 16:03:04FORECAST2020279-762.8143.4653.13552.9907346666670.00680.06681.71.7668FF30.81454.81186451.2801436634323.9136663532040.66357405750114943131123.5DRYL
2020-06-29 12:00:02FORECAST2020279-767.6945.6756.6849.3762840.00160.00161.381.3816FF35.69485.69186449.9278721555822.2157663950690.81255257949099944131124DRYL
2020-06-29 08:00:03FORECAST2020279-767.745.6656.6849.1100026666670.00160.00161.411.4116FF35.7486.7186449.8277566752422.0910423298620.81280903423005944131124DRYL
2020-06-29 04:00:03FORECAST2020279-762.5543.4452.99549.0908943333330.00270.00271.321.3227FF30.55484.55186449.8205697898322.0820940605120.65448629562776943131123.5DRYL
2020-06-29 00:00:03FORECAST2020279-762.3542.0652.20549.1226853333330.01210.01210.920.9321FF30.35482.35186449.8325265937122.0969816565610.64743430239766943131123.5DRYL
2020-06-28 20:00:04FORECAST2020279-762.3642.0552.20550.6361146666670.01210.01210.950.9621FF30.36496.36186450.4006217141522.8065375270560.64778813188246943131123.5DRYL
2020-06-28 16:00:03FORECAST2020279-761.9641.8851.9250.7717426666670.00270.00270.870.8727FF29.96497.96186450.4514257787922.8702038734740.63353821725602943131123.5DRYL
2020-06-28 12:00:04FORECAST2020279-757.1142.9950.0549.0209880.00020.01020.820.8302FF25.11502.11186449.7942741627222.04935971620.45187802712173942141123.5DRYL
2020-06-28 08:00:04FORECAST2020279-745.9442.9844.4649.41726666666700.010.730.74FF13.94483.94186449.9432746565722.2349667885770.11787854346844941131122.5DRYL
2020-06-28 04:00:04FORECAST2020279-744.2542.9943.6249.46466575000.750.75FF12.25490.25186449.9610866377322.2571747510420.088995598365977941131122.5DRYL