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

Daily Debris Flow Hazard (DFH) for Wednesday, August 24, 2022

[ Tuesday, August 23, 2022 | Index | Today | Thursday, August 25, 2022 ]

DAY 328 OF WATER YEAR 2022, FORECAST LAST UPDATED 08/25/2022 04:00:03 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:
H
HIGH

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 75.53°F
MINIMUM TEMPERATURE (Tmin): 61.77°F
AVERAGE TEMPERATURE (Tavg): 68.65°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.915
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: 44
18-DAY CUMULATIVE DD32: 707

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: 0.01 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: 235
CALCULATED SNOW DENSITY: 458.65 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: 43

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 5
D1: 3
D2: 5
D3: 1
D4: 5
D5: 1
HSdry: 65.0

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
2022-08-25 04:00:03OBSERVATION20223284375.5299461.7700268.6499800.0100000000001050.0100000000001050.010.020000000000105FF43.52994706.52994235458.65434269338 00.9148325664992316 53515165DRYH
2022-08-25 00:00:02FORECAST20223284362.1262.1262.1200.00510.00510.010.0151FF30.12693.12236459.1824721097400.563463433361731633515227.5DRYL
2022-08-24 12:00:01FORECAST20223284374.4561.4367.9400.03990.03990.010.0499FF42.45705.45236459.1824721097400.898569473883251653515165DRYH
2022-08-24 08:00:01FORECAST20223284369.3661.2565.30500.05690.05690.010.0669FF37.36700.36236459.1824721097400.792026715860541643515160DRYH
2022-08-24 04:00:06FORECAST20223284369.7457.8163.77500.05020.05020.010.0602FF37.74700.74236459.1824721097400.801723876284711643515160DRYH
2022-08-24 00:00:02FORECAST20223284368.7457.9163.32500.07630.07630.010.0863FF36.74691.74235458.6543426933800.775618784033861643515160DRYH
2022-08-23 20:00:02FORECAST20223284369.6857.7463.7100.05170.05170.010.0617FF37.68704.68235458.6543426933800.800211112556581643515160DRYH
2022-08-23 16:00:01FORECAST20223284369.8458.6564.24500.06150.06150.010.0715FF37.84704.84235458.6543426933800.804229765840281643515160DRYH
2022-08-23 12:00:02FORECAST20223284369.9659.7264.8400.05380.05380.010.0638FF37.96704.96235458.6543426933800.807211382707261643515160DRYH
2022-08-23 08:00:03FORECAST20223284369.8460.0464.9400.05380.06380.010.0738FF37.84700.84235458.6543426933800.804229765840281643515160DRYH
2022-08-23 04:00:08FORECAST20223284370.2958.8364.5600.04270.04270.010.0527FF38.29699.29235458.6543426933800.815266990220291643515160DRYH
2022-08-23 00:00:02FORECAST20223284370.1258.5564.33500.06440.07440.010.0844FF38.12685.12235458.6543426933800.811143537142951643515160DRYH
2022-08-22 20:00:02FORECAST20223284370.2659.0964.67500.04990.05990.010.0699FF38.26697.26235458.6543426933800.814543408329421643515160DRYH
2022-08-22 16:00:02FORECAST20223284369.5258.2863.900.05420.06420.010.0742FF37.52696.52235458.6543426933800.796143343770491643515160DRYH
2022-08-22 12:00:03FORECAST20223284369.3858.1863.7800.06870.07870.010.0887FF37.38696.38235458.6543426933800.792543956993211643515160DRYH
2022-08-22 08:00:02FORECAST20223284369.5158.2463.87500.06360.07360.010.0836FF37.51695.51235458.6543426933800.795887483160151643515160DRYH
2022-08-22 04:00:09FORECAST20223284370.358.3564.32500.03850.03850.010.0485FF38.3696.3235458.6543426933800.815507794533571643515160DRYH
2022-08-22 00:00:03FORECAST20223284368.6758.2263.44500.05530.07530.010.0853FF36.67678.67235458.6543426933800.773721290676811643515160DRYH
2022-08-21 20:00:03FORECAST20223284370.8558.0264.43500.05220.07220.010.0822FF38.85691.85235458.6543426933800.828450982913321643515160DRYH
2022-08-21 16:00:03FORECAST20223284371.2259.5965.40500.06140.08140.010.0914FF39.22690.22235458.6543426933800.836824158681271643515160DRYH
2022-08-21 12:00:03FORECAST20223284368.1159.6963.900.06560.09560.010.1056FF36.11687.11235458.6543426933800.7582196973516416435251120DRYVH
2022-08-21 08:00:03FORECAST20223284369.8258.2164.01500.08350.11350.010.1235FF37.82688.82235458.6543426933800.8037301283720516435251120DRYVH
2022-08-21 04:00:06FORECAST20223284371.1258.2364.67500.01240.03240.010.0424FF39.12692.12235458.6543426933800.83458770344051643515160DRYH
2022-08-21 00:00:04FORECAST20223284370.4457.9264.1800.00510.01510.020.0351FF38.44683.44235458.6543426933800.818858574878761643515160DRYH
2022-08-20 20:00:03FORECAST20223284371.3357.7664.54500.00450.014500.0145FF39.33691.33235458.6543426933800.839261513075891643515160DRYH
2022-08-20 16:00:04FORECAST20223284371.2958.1364.7100.00460.024600.0246FF39.29694.29235458.6543426933800.838377960024891643515160DRYH
2022-08-20 12:00:04FORECAST20223284371.1758.1264.64500.02460.064600.0646FF39.17691.17235458.6543426933800.835708392302321643515160DRYH
2022-08-20 08:00:04FORECAST20223284368.7658.3263.5400.02460.04460.010.0546FF36.76691.76235458.6543426933800.776159264465381643515160DRYH
2022-08-20 04:00:09FORECAST20223284371.3259.665.4600.03710.057100.0571FF39.32695.32235458.6543426933800.83904092029791643515160DRYH
2022-08-20 00:00:04FORECAST20223284372.3158.9965.6500.03760.05760.010.0676FF40.31688.31235458.6543426933800.859924655589011653515165DRYH
2022-08-19 20:00:03FORECAST20223284372.3259.465.8600.03760.05760.010.0676FF40.32706.32235458.6543426933800.860125779265021653515165DRYH
2022-08-19 16:00:03FORECAST20223284373.3859.466.3900.0360.0460.010.056FF41.38707.38235458.6543426933800.880341309367741653515165DRYH
2022-08-19 12:00:04FORECAST20223284375.1659.5167.33500.02240.04240.010.0524FF43.16704.16235458.6543426933800.909496497653941653515165DRYH
2022-08-19 08:00:04FORECAST20223284375.1160.767.90500.02260.04260.020.0626FF43.11696.11235458.6543426933800.908756720314781653515165DRYH
2022-08-19 04:00:07FORECAST20223284375.1160.6867.89500.02260.04260.030.0726FF43.11702.11235458.6543426933800.908756720314781653515165DRYH
2022-08-19 00:00:04FORECAST2022328437358.6865.8400.01480.03480.020.0548FF41692235458.6543426933800.873344494652161653515165DRYH
2022-08-18 20:00:04FORECAST20223284372.3557.1964.7700.01480.03480.050.0848FF40.35697.35235458.6543426933800.860727975566071653515165DRYH
2022-08-18 16:00:04FORECAST20223284372.3557.1964.7700.01480.03480.040.0748FF40.35700.35235458.6543426933800.860727975566071653515165DRYH
2022-08-18 12:00:04FORECAST20223284368.8955.862.34500.00930.03930.050.0893FF36.89690.89235458.6543426933800.779654331892881643515160DRYH
2022-08-18 08:00:04FORECAST20223284367.8754.661.23500.00940.03940.120.1594FF35.87681.87235458.6543426933800.751404117557021643515230DRYL
2022-08-18 04:00:11FORECAST20223284367.8754.661.23500.00940.03940.080.1194FF35.87685.87235458.6543426933800.751404117557021643515230DRYL
2022-08-18 00:00:05FORECAST20223284374.3160.1267.21500.00380.05380.060.1138FF42.31692.31235458.6543426933800.896306268521661653515165DRYH
2022-08-17 20:00:04FORECAST20223284374.1860.167.1400.00380.04380.190.2338FF42.18697.18235458.6543426933800.894172226023641653515165DRYH
2022-08-17 16:00:04FORECAST20223284376.1760.5268.345000.010.150.16FF44.17702.17235458.6543426933800.923504477769391653515165DRYH
2022-08-17 12:00:04FORECAST20223284367.1756.3461.7550000.160.16FF35.17692.17235458.6543426933800.730955853647291643515230DRYL
2022-08-17 08:00:05FORECAST20223284357.5456.2256.880000.150.15FF25.54679.54235458.6543426933800.399846349317871623515225DRYL
2022-08-17 04:00:09FORECAST20223284357.8356.9657.395000.010.150.16FF25.83679.83235458.6543426933800.409993234558531623515225DRYL