MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Friday, August 26, 2022

[ Thursday, August 25, 2022 | Index | Today | Saturday, August 27, 2022 ]

DAY 330 OF WATER YEAR 2022, FORECAST LAST UPDATED 08/27/2022 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:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 64.08°F
MINIMUM TEMPERATURE (Tmin): 48.96°F
AVERAGE TEMPERATURE (Tavg): 56.52°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.657
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: 32
18-DAY CUMULATIVE DD32: 687

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): 0.01 in
DAY 4-15 (P15): 0.01 in
18-DAY TOTAL (P18): 0.02 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: 0 in
SWE DAY: 237
CALCULATED SNOW DENSITY: 459.71 kg/m3
CALCULATED SWE: 0.00 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: 45

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 3
D1: 3
D2: 5
D3: 1
D4: 5
D5: 2
HSdry: 27.5

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
2022-08-27 04:00:05OBSERVATION20223304564.0799648.9599656.51996000.010.010.02FF32.07996687.07996237459.70859844258 00.6572198481729816 33515227.5DRYL
2022-08-27 00:00:01FORECAST20223304548.7948.7948.7900.0030.0130.010.023FF16.79671.79238460.2327292891900.1321067608751613515222.5DRYL
2022-08-26 12:00:02FORECAST20223304560.7146.2353.4700.01430.02430.010.0343FF28.71683.71238460.2327292891900.527755388205741633515227.5DRYL
2022-08-26 08:00:02FORECAST20223304558.6647.8453.2500.02050.03050.010.0405FF26.66681.66238460.2327292891900.446577424600991623515225DRYL
2022-08-26 04:00:07FORECAST20223304558.7647.8453.300.01440.02440.010.0344FF26.76681.76238460.2327292891900.45051318391121623515225DRYL
2022-08-26 00:00:02FORECAST20223304559.3646.8753.11500.02090.03090.010.0409FF27.36665.36237459.7085984425800.474216557010061623515225DRYL
2022-08-25 20:00:01FORECAST20223304559.4447.1953.31500.02080.04080.010.0508FF27.44680.44237459.7085984425800.477385771587821623515225DRYL
2022-08-25 16:00:02FORECAST20223304559.4247.1653.2900.02160.04160.010.0516FF27.42680.42237459.7085984425800.476593325985691623515225DRYL
2022-08-25 12:00:02FORECAST20223304559.8547.5253.68500.01920.03920.010.0492FF27.85680.85237459.7085984425800.493646128100271623515225DRYL
2022-08-25 08:00:12FORECAST20223304559.9847.9853.9800.02130.04130.010.0513FF27.98677.98237459.7085984425800.498805343184241623515225DRYL
2022-08-25 04:00:04FORECAST20223304560.7447.8854.3100.01650.03650.010.0465FF28.74679.74237459.7085984425800.528943030017571633515227.5DRYL
2022-08-25 00:00:03FORECAST20223304560.4848.1954.33500.01790.04790.010.0579FF28.48665.48237459.7085984425800.518642712459931633515227.5DRYL
2022-08-24 20:00:02FORECAST20223304561.4849.0455.2600.0140.0640.010.074FF29.48678.48237459.7085984425800.55813058375541633515227.5DRYL
2022-08-24 16:00:03FORECAST20223304562.1449.865600.00980.05980.010.0698FF30.14679.14237459.7085984425800.583903838964041633515227.5DRYL
2022-08-24 12:00:03FORECAST20223304561.6949.3355.5100.01220.08220.010.0922FF29.69677.69237459.7085984425800.566363318488811633515227.5DRYL
2022-08-24 08:00:03FORECAST20223304560.7748.8454.80500.01860.10860.010.1186FF28.77671.77237459.7085984425800.530130414482671633525255DRYH
2022-08-24 04:00:07FORECAST20223304560.6348.7854.70500.01650.10650.010.1165FF28.63672.63237459.7085984425800.524587165294181633525255DRYH
2022-08-24 00:00:03FORECAST20223304559.2349.5254.37500.00880.09880.010.1088FF27.23663.23237459.7085984425800.469070150298161623525250DRYMH
2022-08-23 20:00:05FORECAST20223304564.0848.6656.3700.0120.0720.010.082FF32.08681.08237459.7085984425800.657221310806191633515227.5DRYL
2022-08-23 16:00:03FORECAST20223304564.1249.3156.71500.00910.07910.010.0891FF32.12681.12237459.7085984425800.65868276198261633515227.5DRYL
2022-08-23 12:00:03FORECAST20223304559.4849.2554.36500.00440.05440.010.0644FF27.48676.48237459.7085984425800.478970927949731623515225DRYL
2022-08-23 08:00:04FORECAST20223304560.6149.2554.9300.00460.05460.020.0746FF28.61673.61237459.7085984425800.523794858730371633515227.5DRYL
2022-08-23 04:00:09FORECAST20223304563.6149.2556.4300.00460.04460.010.0546FF31.61674.61237459.7085984425800.639878107932821633515227.5DRYL
2022-08-23 00:00:03FORECAST20223304563.7649.1456.4500.00220.09220.020.1122FF31.76659.76237459.7085984425800.645446553958161633525255DRYH
2022-08-22 20:00:03FORECAST20223304563.7549.1356.4400.00220.09220.020.1122FF31.75673.75237459.7085984425800.645076273714681633525255DRYH
2022-08-22 16:00:03FORECAST20223304564.8250.0757.44500.00220.10220.020.1222FF32.82673.82237459.7085984425800.683857090055921633525255DRYH
2022-08-22 12:00:03FORECAST20223304565.0949.4457.26500.00220.10220.020.1222FF33.09671.09237459.7085984425800.693351946171611633525255DRYH
2022-08-22 08:00:03FORECAST20223304560.2748.5554.4100.00320.09320.020.1132FF28.27665.27237459.7085984425800.510313805793441633525255DRYH
2022-08-22 04:00:10FORECAST20223304560.2748.8454.55500.00320.04320.010.0532FF28.27669.27237459.7085984425800.510313805793441633515227.5DRYL
2022-08-22 00:00:04FORECAST20223304565.2252.6358.925000.060.030.09FF33.22658.22237459.7085984425800.697878235717061633515227.5DRYL
2022-08-21 20:00:04FORECAST20223304564.8652.6558.755000.050.030.08FF32.86670.86237459.7085984425800.68527160722381633515227.5DRYL
2022-08-21 16:00:04FORECAST20223304564.8652.6858.77000.060.030.09FF32.86667.86237459.7085984425800.68527160722381633515227.5DRYL
2022-08-21 12:00:04FORECAST20223304566.3453.0359.685000.070.040.11FF34.34667.34237459.7085984425800.735567867206531643515230DRYL
2022-08-21 08:00:04FORECAST20223304566.3452.9959.665000.080.040.12FF34.34666.34237459.7085984425800.735567867206531643515230DRYL
2022-08-21 04:00:07FORECAST20223304565.7651.9958.875000.010.030.04FF33.76668.76237459.7085984425800.716350315101661643515230DRYL
2022-08-21 00:00:05FORECAST20223304567.285561.14000.060.030.09FF35.28663.28237459.7085984425800.76524376348411643515230DRYL
2022-08-20 20:00:04FORECAST20223304567.285561.14000.050.010.06FF35.28671.28237459.7085984425800.76524376348411643515230DRYL
2022-08-20 16:00:04FORECAST20223304568.1255.3261.72000.050.020.07FF36.12675.12237459.7085984425800.79012728209141643515160DRYH
2022-08-20 12:00:05FORECAST20223304573.8260.9167.365000.080.040.12FF41.82678.82237459.7085984425800.915362734945481653515165DRYH
2022-08-20 08:00:04FORECAST20223304573.8160.9167.36000.080.030.11FF41.81679.81237459.7085984425800.915207990571061653515165DRYH
2022-08-20 04:00:10FORECAST20223304573.8761.3667.615000.10.020.12FF41.87681.87237459.7085984425800.9161332916067616535251130DRYVH
2022-08-20 00:00:05FORECAST20223304573.3560.2966.82000.10.030.13FF41.35675.35237459.7085984425800.9078591725289516535251130DRYVH
2022-08-19 20:00:04FORECAST20223304573.3360.3266.825000.10.030.13FF41.33693.33237459.7085984425800.9075293195468216535251130DRYVH
2022-08-19 16:00:03FORECAST20223304574.359.7167.005000.10.020.12FF42.3695.3237459.7085984425800.9225446277745916535251130DRYVH
2022-08-19 12:00:04FORECAST20223304568.0961.764.895000.070.030.1FF36.09686.09237459.7085984425800.78926611454151643515160DRYH
2022-08-19 08:00:04FORECAST20223304564.4462.4163.425000.070.040.11FF32.44675.44237459.7085984425800.670287291570691633515227.5DRYL
2022-08-19 04:00:07FORECAST20223304564.4564.2264.335000.070.050.12FF32.45681.45237459.7085984425800.670647378831441633515227.5DRYL