MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, April 6, 2022

[ Tuesday, April 5, 2022 | Index | Today | Thursday, April 7, 2022 ]

DAY 188 OF WATER YEAR 2022, FORECAST LAST UPDATED 04/07/2022 04:00:04 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): 38.64°F
MINIMUM TEMPERATURE (Tmin): 17.67°F
AVERAGE TEMPERATURE (Tavg): 28.16°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.408
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: 7
18-DAY CUMULATIVE DD32: 5

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): 2.21 in
DAY 4-15 (P15): 2.57 in
18-DAY TOTAL (P18): 4.78 in

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

PRECIP THRESHOLD B (PB) EXCEEDED: False
P3 > (-0.67 * P15 + 4.5)
Snow at Paradise DEPTH: 158 in
SWE DAY: 95
CALCULATED SNOW DENSITY: 439.38 kg/m3
CALCULATED SWE: 69.61 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: -97

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 2
D1: 1
D2: 1
D3: 5
D4: 1
D5: 2
HSdry: 10.0

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
2022-04-07 04:00:04OBSERVATION2022188-9738.6400217.6700228.15502158.4197447826102.212.574.78TF6.640024.6400295439.38431613282 69.6071512232430.4083123624688716 21151210WETL
2022-04-07 00:00:01FORECAST2022188-9633.3733.3733.37160.9925106666702.212.574.78TF1.37-0.6396441.0141117074870.9999690832170.22229215380224161115127.5WETL
2022-04-06 12:00:01FORECAST2022188-9641.8228.9335.375160.650625333330.00372.21372.574.7837TF9.827.8296440.877814596770.8272966105540.535638718715411631151212.5WETL
2022-04-06 08:00:02FORECAST2022188-9637.9719.9828.975160.75433568250.00762.21762.574.7876TF5.973.9796440.9191726063370.8796686820070.382243074695131621151210WETL
2022-04-06 04:00:05FORECAST2022188-9641.1619.230.18160.288263250170.00572.21572.574.7857TF9.167.1696440.7332248957970.6443631751940.509078528190151631151212.5WETL
2022-04-06 00:00:02FORECAST2022188-9741.1119.7130.41151.678062212060.00591.50592.574.0759TF9.110.1195436.6465398089966.2297010298280.507063265488681631151212.5WETL
2022-04-05 20:00:02FORECAST2022188-9741.4419.3530.395150.637316573860.00041.64042.574.2104TF9.446.4495436.21970334665.7109655486880.520358261132131631151212.5WETL
2022-04-05 16:00:01FORECAST2022188-9741.5920.5631.075150.616788157320.00041.64042.574.2104TF9.596.5995436.211272763465.7007408616420.526394850763791631151212.5WETL
2022-04-05 12:00:02FORECAST2022188-9741.7821.2731.525151.304001740870.00071.64072.574.2107TF9.786.7895436.4932578978566.0431766528570.534032329366791631151212.5WETL
2022-04-05 08:00:02FORECAST2022188-9740.8121.3131.06151.979376760420.00071.73072.574.3007TF8.812.8195436.7699061488166.3800181242040.494969703736661621151210WETL
2022-04-05 04:00:06FORECAST2022188-9740.7919.6530.22153.523135140530.00141.93142.574.5014TF8.792.7995437.400483716467.1510935721260.494163507712331621151210WETL
2022-04-05 00:00:03FORECAST2022188-9739.7621.0830.42143.428872519690.00110.71112.573.2811FF7.76-9.2495433.2321597015262.1380002052580.4527513477613162113126DRYL
2022-04-04 20:00:02FORECAST2022188-9739.721.0530.375139.057531712070.00511.71512.574.2851TF7.7-3.395431.3936309128659.988533511050.450350397309581621151210WETL
2022-04-04 16:00:02FORECAST2022188-9739.720.7530.225138.651364336430.00241.66242.574.2324TF7.7-2.395431.2217634576859.7894858349660.450350397309581621151210WETL
2022-04-04 12:00:02FORECAST2022188-9739.120.629.85144.349340196030.00291.70292.574.2729TF7.1-2.995433.6167014172162.5922847475530.426454987491871621151210WETL
2022-04-04 08:00:03FORECAST2022188-9739.5120.8530.18146.983594390150.00272.18272.574.7527TF7.510.5099999999999995434.7122526397463.8955694184260.442759778307341621151210WETL
2022-04-04 04:00:06FORECAST2022188-9739.3320.9330.13149.254376643830.00262.71262.575.2826TF7.330.3395435.6507755931265.0227849455510.435587947762091621151210WETL
2022-04-04 00:00:03FORECAST2022188-9739.5320.7230.125153.775772940650.00353.24352.155.3935TT7.531.5395437.5034432198867.2774301453340.443557851675731621151210WETL
2022-04-03 20:00:02FORECAST2022188-9737.2720.4628.865151.072282674360.00453.10452.655.7545TT5.27-4.7395436.3982313460765.9276769645060.355567738032081621151210WETL
2022-04-03 16:00:03FORECAST2022188-9737.7220.9129.315150.518323715640.00322.98322.655.6332TT5.720.7295436.1708294069365.6517020959890.372644299486051621151210WETL
2022-04-03 12:00:02FORECAST2022188-9738.2920.8129.55151.849359098730.00212.98212.655.6321TT6.292.2995436.7166849758866.3151487213080.394635110812811621151210WETL
2022-04-03 08:00:03FORECAST2022188-9737.7619.5728.665154.03044271230.00293.24292.615.8529TT5.762.7695437.607163982267.4048252022530.374174975556241621151210WETL
2022-04-03 04:00:06FORECAST2022188-9738.6821.4830.08153.845646993720.00213.20212.545.7421TT6.680.6800000000000195437.5319078899567.3123794497250.409882077199231621151210WETL
2022-04-03 00:00:03FORECAST2022188-9738.321.6129.955152.80290857880.00173.06172.425.4817TT6.3-6.795437.1066011100266.7911600086060.39502415728441621151210WETL
2022-04-02 20:00:03FORECAST2022188-9738.320.0129.155152.812949343160.00142.99142.495.4814TT6.33.395437.1107018588466.7961755405060.39502415728441621151210WETL
2022-04-02 16:00:03FORECAST2022188-9738.0821.1429.61151.127120942080.00182.80182.535.3318TF6.088.0895436.4207252316165.9550077237080.386489961114751621151210WETL
2022-04-02 12:00:03FORECAST2022188-9740.5920.8730.73151.652522362960.0022.7522.525.272TF8.597.5995436.6360787615366.2169626988560.48610340158841621151210WETL
2022-04-02 08:00:03FORECAST2022188-9734.7920.9427.865153.080241078090.0022.8522.555.402TT2.79-4.2195437.2198280427966.9297166809130.267315096660551621151210WETL
2022-04-02 04:00:06FORECAST2022188-9734.7420.9427.84153.709224602130.0022.8622.595.452TT2.741.7495437.4763286524567.2441472589560.265655253217521621151210WETL
2022-04-02 00:00:03FORECAST2022188-9738.0521.3529.7153.419773248780.00283.00282.565.5628TT6.05-1.9595437.3583407691467.0994174692640.385330346820531621151210WETL
2022-04-01 20:00:04FORECAST2022188-9738.3419.0528.695153.1056928190.00282.91282.615.5228TT6.345.3495437.230215265966.9424350296880.396581386061051621151210WETL
2022-04-01 16:00:02FORECAST2022188-9738.3819.1728.775154.478431184880.00352.89352.645.5335TT6.384.3895437.7894559789867.6290283489160.398140265715151621151210WETL
2022-04-01 12:00:03FORECAST2022188-9738.4320.3729.4154.743740308790.00532.87532.65.4753TT6.439.4395437.8973157542867.7618685109970.400091150674721621151210WETL
2022-04-01 08:00:03FORECAST2022188-9738.5120.5129.51154.513414386640.00612.79612.515.3061TF6.515.5195437.8036823427667.6465417898240.403217738665761621151210WETL
2022-04-01 04:00:06FORECAST2022188-9738.420.8629.63154.673047871580.00612.72612.55.2261TF6.45.495437.8685832863267.7264683441050.398920317209561621151210WETL
2022-04-01 00:00:04FORECAST2022188-9739.1321.1430.135153.300940410870.00772.86772.134.9977TF7.136.1395437.3098762980967.0400152874580.427644118074371621151210WETL
2022-03-31 20:00:04FORECAST2022188-9739.0821.2730.175152.572364584480.0092.9192.185.099TF7.0813.0895437.0124158569366.6760176400660.425662604283711621151210WETL
2022-03-31 16:00:03FORECAST2022188-9739.0221.3530.185149.862084322370.0092.4792.214.689TF7.0211.0295435.9010266552365.3250364128140.423287267459831621151210WETL
2022-03-31 12:00:03FORECAST2022188-9739.6221.2330.425148.913806610770.01482.30482.134.4348TF7.6215.6295435.5103615211864.8535057525530.44715196927381621151210WETL
2022-03-31 08:00:03FORECAST2022188-9739.6621.2330.445149.3250389420.01482.37482.184.5548TF7.6616.6695435.6798938337465.0579171129690.448750766972421621151210WETL
2022-03-31 04:00:06FORECAST2022188-9739.822.0430.92152.538618539810.01442.48441.894.3744TF7.814.895436.998624794166.6591665298890.454352947127661621151210WETL
2022-03-31 00:00:04FORECAST2022188-9738.7322.130.415157.63097551480.02892.67891.544.2189TF6.7311.7395439.0664157448469.2104674296460.411847233386111621151210WETL
2022-03-30 20:00:03FORECAST2022188-9738.5722.0630.315157.965406022540.02892.76891.734.4989TF6.5721.5795439.2012801986169.3786085521940.405566757567711621151210WETL
2022-03-30 16:00:03FORECAST2022188-9737.6123.5630.585156.102670940130.02792.64791.614.2579TF5.6122.6195438.4486423780668.4430041452910.36844536012291621151210WETL
2022-03-30 12:00:03FORECAST2022188-9728.1922.0525.12161.421980987420.04152.79151.714.5015TF-3.814.1995440.588508777471.1206698871390.098806162581843161115127.5WETL
2022-03-30 08:00:03FORECAST2022188-9724.1721.1122.64158.27636708940.03952.77951.954.7295TF-7.8317.1795439.326577482669.5350146497630.044969759165897161115127.5WETL
2022-03-30 04:00:07FORECAST2022188-9721.6719.4920.58157.251703460710.03612.68611.864.5461TF-10.3317.6795438.913329523869.0198687392280.025619353321702161115127.5WETL