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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Thursday, April 7, 2022

[ Wednesday, April 6, 2022 | Index | Today | Friday, April 8, 2022 ]

DAY 189 OF WATER YEAR 2022, FORECAST LAST UPDATED 04/08/2022 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:

WET

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 63.47°F
MINIMUM TEMPERATURE (Tmin): 38.01°F
AVERAGE TEMPERATURE (Tavg): 50.74°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.991
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: 31
18-DAY CUMULATIVE DD32: 40

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): 0.71 in
DAY 4-15 (P15): 3.79 in
18-DAY TOTAL (P18): 4.50 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: 152 in
SWE DAY: 96
CALCULATED SNOW DENSITY: 437.23 kg/m3
CALCULATED SWE: 66.29 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: -96

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 5
D1: 1
D2: 1
D3: 3
D4: 1
D5: 2
HSdry: 10.5

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
2022-04-08 04:00:05OBSERVATION2022189-9663.4699438.0100250.73998151.6122295833300.713.794.5TF31.4699440.4699496437.23127622627 66.289608632230.9910534306610716 51131210.5WETL
2022-04-08 00:00:01FORECAST2022189-9549.8649.8649.86156.9023653333300.713.794.5TF17.8626.8697439.9769823755969.0334292269530.82893155527951164113129WETL
2022-04-07 12:00:02FORECAST2022189-9556.8445.3751.105156.7139120.00440.71443.794.5044TF24.8433.8497439.9013710380768.938664749540.953121878959331651131210.5WETL
2022-04-07 08:00:02FORECAST2022189-9548.7139.7844.245156.7513040.0030.7133.794.503TF16.7125.7197439.9163763527268.9574656442430.79687733700449164113129WETL
2022-04-07 04:00:04FORECAST2022189-9553.4437.245.32156.939863449280.00260.71263.794.5026TF21.4430.4497439.9920230709969.0522880195320.906917160044821651131210.5WETL
2022-04-07 00:00:01FORECAST2022189-9653.5633.8143.685159.445170666670.00050.71053.794.5005TF21.5624.5696440.3962986664870.2190630018460.908977946343551651131210.5WETL
2022-04-06 20:00:02FORECAST2022189-9652.8336.644.715159.4468653333300.713.794.5TF20.8332.8396440.3969766323670.2199174263070.895908403116661651131210.5WETL
2022-04-06 16:00:02FORECAST2022189-9653.0636.9144.985159.4380640.00040.71043.794.5004TF21.0633.0696440.3934555520170.2154799514830.900164827246231651131210.5WETL
2022-04-06 12:00:01FORECAST2022189-9653.1237.0445.08159.0618480.00040.71043.794.5004TF21.1233.1296440.2428721509870.0258448131620.901254061563691651131210.5WETL
2022-04-06 08:00:02FORECAST2022189-9653.2636.8745.065159.168073015830.00050.72053.794.5105TF21.2629.2696440.285404125470.0793793516370.903761845526161651131210.5WETL
2022-04-06 04:00:05FORECAST2022189-9653.136.9445.02158.759127250170.00050.72053.794.5105TF21.132.196440.1216012804669.8733213032350.900891950828781651131210.5WETL
2022-04-06 00:00:02FORECAST2022189-9653.0636.7944.925150.179594212060.00050.01053.793.8005TF21.0625.0696436.6455547537565.5752522274170.90016482724623165111123.5DRYL
2022-04-05 20:00:02FORECAST2022189-9651.6636.6244.14149.1543192405300.143.793.93TF19.6629.6696436.2250689043365.0648531880770.87222246785837165112127DRYL
2022-04-05 16:00:01FORECAST2022189-9649.1137.3443.225149.169870823990.0030.1433.793.933TF17.1128.1196436.231455103265.0725898071060.80841153292165164112126DRYL
2022-04-05 12:00:03FORECAST2022189-9653.137.5545.325149.743815074210.00310.14313.793.9331TF21.132.196436.466966773665.3582287585470.90089195082878165112127DRYL
2022-04-05 08:00:03FORECAST2022189-9652.6636.8744.765150.482220760420.01530.24533.794.0353TF20.6627.6696436.7694588123765.7260381224140.89267912109818165112127WETL
2022-04-05 04:00:06FORECAST2022189-9651.9236.8944.405152.07392180720.0010.4313.794.221TF19.9226.9296437.419581722966.5201112678660.87778417561224165112127WETL
2022-04-05 00:00:04FORECAST2022189-9649.4836.5243142.115341853020.00270.67272.333.0027FF17.4812.4896433.3084873038861.5797838010070.81871625642545164113129DRYL
2022-04-04 20:00:02FORECAST2022189-9646.1335.3540.74137.97048504540.0020.7823.234.012TF14.1315.1396431.5665247985159.5434427558090.71316408956325164113129WETL
2022-04-04 16:00:02FORECAST2022189-9644.3734.3539.36137.774729669760.00290.72293.233.9529TF12.3714.3796431.4838001274159.4475639194350.64800921147647163113127.5DRYL
2022-04-04 12:00:03FORECAST2022189-9642.733.8138.255143.567825529360.00130.76133.233.9913TF10.711.796433.9145974258462.2961752178770.58183889946293163113127.5DRYL
2022-04-04 08:00:03FORECAST2022189-9644.7233.639.16146.215691723480.00460.86463.614.4746TF12.7217.7296435.0137938812163.6058427815970.66139850881871163113127.5WETL
2022-04-04 04:00:06FORECAST2022189-9644.5933.4339.01148.526872643830.00580.83584.175.0058TF12.5916.5996435.9671998154464.7528447638740.65644800919137163113127.5WETL
2022-04-04 00:00:03FORECAST2022189-9640.9533.2837.115153.132510273980.00660.84664.275.1166TF8.9514.9596437.8505042365167.0491468384670.50995099384562163113127.5WETL
2022-04-03 20:00:02FORECAST2022189-9645.0832.3438.71150.342482674360.00750.74754.735.4775TF13.0812.0896436.7122578351565.6564050572630.6749606935776163113127.5WETL
2022-04-03 16:00:03FORECAST2022189-9641.3133.2137.26149.81088238230.00750.72754.635.3575TF9.3114.3196436.4944647039965.3916209122950.5248439475081163113127.5WETL
2022-04-03 12:00:02FORECAST2022189-9644.6332.7838.705151.106439098730.00320.70324.655.3532TF12.6318.6396437.0247312120666.0372509315330.65797414693242163113127.5WETL
2022-04-03 08:00:03FORECAST2022189-9643.6233.1638.39153.330108045640.00230.79234.785.5723TF11.6218.6296437.9308126577467.1479788213240.61871153891687163113127.5WETL
2022-04-03 04:00:07FORECAST2022189-9647.8133.5140.66152.928722993720.00050.78054.685.4605TF15.8120.8196437.7676380210966.9472458505410.769459422657164113129WETL
2022-04-03 00:00:03FORECAST2022189-9648.2934.4741.38151.706732578800.684.525.2TF16.2913.2996437.2698381341466.3367783985930.78433181187339164113129WETL
2022-04-02 20:00:03FORECAST2022189-9648.2333.3440.785151.7552040098200.624.585.2TF16.2323.2396437.2896132902666.360974476240.7825036963226164113129WETL
2022-04-02 16:00:03FORECAST2022189-9648.2433.3440.79150.1150769420800.484.575.05TF16.2428.2496436.619127199165.5431138738770.78280900079186164112126WETL
2022-04-02 12:00:03FORECAST2022189-9649.0133.9441.475150.5783770296200.474.524.99TF17.0129.0196436.8088080346265.7739613860970.80556617959608164112126WETL
2022-04-02 08:00:03FORECAST2022189-9648.734.1541.425151.9978410780900.594.535.12TF16.716.796437.3885666794866.4821178475230.79658378049748164113129WETL
2022-04-02 04:00:07FORECAST2022189-9648.7334.0641.395152.627535268800.624.555.17TF16.7322.7396437.645087199866.7966909818040.79746369228504164113129WETL
2022-04-02 00:00:04FORECAST2022189-9645.7335.0640.395152.555329248780.00620.75624.535.2862TF13.7315.7396437.6156932260266.7606061645290.69886117988027163113127.5WETL
2022-04-01 20:00:04FORECAST2022189-9643.233.6438.42152.446358152340.06610.76614.545.3061TF11.220.296437.5713225398166.7061545530950.60198999995574163113127.5WETL
2022-04-01 16:00:03FORECAST2022189-9643.2433.6438.44153.810677851550.06610.79614.525.3161TF11.2419.2496438.1259594885167.3884508132880.60359115760513163113127.5WETL
2022-04-01 12:00:03FORECAST2022189-9645.8434.4340.135153.873173642120.00830.73834.475.2083TF13.8426.8496438.1513198962567.4197341279210.70282639857186164113129WETL
2022-04-01 08:00:03FORECAST2022189-9646.5634.4740.515153.629235719970.00620.74624.295.0362TF14.5624.5696438.0523085724367.2976413713520.72817132754158164113129WETL
2022-04-01 04:00:06FORECAST2022189-9646.3833.6340.005153.841513204910.00620.77624.184.9562TF14.3823.3896438.1384727885367.4038856470770.7219369216553164113129WETL
2022-04-01 00:00:04FORECAST2022189-964835.1441.57152.259048410870.00540.85543.874.7254TF162696437.4950253386766.6125762425540.77541375500788164113129WETL
2022-03-31 20:00:04FORECAST2022189-9647.6932.5340.11151.829171251140.00310.83313.994.8231TF15.6932.6996437.3197854202266.397900592080.76565386829713164113129WETL
2022-03-31 16:00:03FORECAST2022189-9647.5732.6140.09149.382766989040.00180.86183.554.4118TF15.5730.5796436.3188547476965.1785178116980.76181385978961164113129WETL
2022-03-31 12:00:03FORECAST2022189-9639.9933.5336.76148.7012079441100.913.244.15TF7.9927.9996436.0388896742164.8395096051630.47022505247509162113126WETL
2022-03-31 08:00:03FORECAST2022189-9632.9531.5532.25149.3135042753300.913.364.27TF0.9521.9596436.2904257135965.1440523450720.21025680844553161113124.5WETL
2022-03-31 04:00:07FORECAST2022189-9635.1132.7133.91152.4976185398100.953.144.09TF3.1122.1196437.5921961966266.7317678115890.2805288124479162113126WETL