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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Thursday, October 27, 2022

[ Wednesday, October 26, 2022 | Index | Today | Friday, October 28, 2022 ]

DAY 27 OF WATER YEAR 2023, FORECAST LAST UPDATED 10/28/2022 04:00:12 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): 35.51°F
MINIMUM TEMPERATURE (Tmin): 29.54°F
AVERAGE TEMPERATURE (Tavg): 32.52°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.228
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: 4
18-DAY CUMULATIVE DD32: 346

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: 0.11 in
DAY 1-3 (P3): 1.35 in
DAY 4-15 (P15): 1.22 in
18-DAY TOTAL (P18): 2.57 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: 20 in
SWE DAY: 67
CALCULATED SNOW DENSITY: 354.95 kg/m3
CALCULATED SWE: 6.50 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: 107

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 1
D1: 5
D2: 2
D3: 4
D4: 1
D5: 2
HSdry: 16.0

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
2022-10-28 04:00:12OBSERVATION20232710735.5129.5399432.5249732.199738750.110000000000011.351.222.57FF3.51345.5167354.9508030125 11.4293231261050.2279379335009216 15241216DRYL
2022-10-28 00:00:02FORECAST20232710733.533.533.526.99180.00571.24571.222.4657FF1.5343.566350.778400781769.46814043822110.174580614526211615242232DRYL
2022-10-27 12:00:02FORECAST20232710740.0534.1337.0926.6613946666670.02961.26961.222.4896FF8.05350.0566350.570921985099.34670970970160.376241169590961625242236DRYL
2022-10-27 08:00:02FORECAST20232710739.8730.2935.0826.6855573333330.05141.29141.222.5114FF7.87349.8766350.586100889679.3555854955610.369783676794421625242236DRYL
2022-10-27 04:00:07FORECAST20232710738.4929.7734.1326.5159060833330.07281.31281.222.5328FF6.49348.4966350.479506860089.29328168803480.32160708166281625242236DRYL
2022-10-27 00:00:02FORECAST20232710740.8729.5435.2059.521120.09650.90651.222.1265FF8.87352.8767340.545104869663.24237080887660.406073345073111625233240.5DRYM
2022-10-26 20:00:01FORECAST20232710740.1330.7635.4459.53691866666670.17061.03061.222.2506FF8.13352.1367340.555431957533.24784945607050.379122443826461625243254DRYMH
2022-10-26 16:00:01FORECAST20232710740.6131.1435.8759.63544797688130.27341.13341.222.3534FF8.61352.6167340.619828095413.28202463350760.396546089315511625243254DRYMH
2022-10-26 12:00:02FORECAST20232710739.8130.7635.2859.79708679294320.25231.11231.222.3323FF7.81351.8167340.725436029053.338116669340.367639207994281625243254DRYMH
2022-10-26 08:00:03FORECAST20232710740.3930.7735.589.66493169337780.17181.06181.222.2818FF8.39355.3967340.639094736123.29225358271870.388532274896471625243254DRYMH
2022-10-26 04:00:15FORECAST20232710740.6730.6435.6559.49745640243070.16641.12641.222.3464FF8.67355.6767340.529635950393.23416537117450.398739436513411625243254DRYMH
2022-10-26 00:00:04FORECAST20232710740.1530.0635.10513.8239500009190.17790.47791.221.6979FF8.15347.1567343.342470640114.74634914732090.379843819629131625223227DRYL
2022-10-25 20:00:03FORECAST20232710736.2930.5533.4210.7390911707720.21221.43221.222.6522FF4.29354.2967341.340039752823.66568180714040.250881024517961625243254DRYMH
2022-10-25 16:00:03FORECAST20232710738.4229.5233.9710.6640175621850.35381.58381.222.8038FF6.42356.4267341.29111244773.63953441696010.319233374289191625253267.5DRYH
2022-10-25 12:00:05FORECAST20232710739.0829.6534.36513.9675454428110.41771.70771.222.9277TF7.08357.0867343.435299094644.79694814676960.341895851376361625253267.5DRYH
2022-10-25 08:00:04FORECAST20232710738.1529.1833.66514.3799315156460.61051.86051.223.0805TF6.15350.1567343.701701302024.94240692653390.310147506147321625253267.5DRYH
2022-10-25 04:00:15FORECAST20232710736.5529.8133.1814.541363450010.68121.97121.223.1912TF4.55349.5567343.80591067234.99940670334760.258791340773941625253267.5DRYH
2022-10-25 00:00:08FORECAST20232710738.1330.6334.385.92297998705320.722.10.812.91TF6.13352.1367338.18228677112.00304691652110.309478973371481625254290DRYVH
2022-10-24 20:00:03FORECAST20232710737.9729.3433.6555.36710428693250.72882.23881.243.4788TF5.97360.9767337.815326026851.81309008451020.304153518493771625254290DRYVH
2022-10-24 16:00:03FORECAST20232710737.3829.2433.315.02098526427990.73062.18061.243.4206TF5.38361.3867337.586574045781.69501721370260.284878624472781625254290DRYVH
2022-10-24 12:00:04FORECAST20232710735.628.8332.2157.03339380158010.71992.05991.243.2999TF3.6358.667338.913775828712.38371405018380.23052357330821615254280DRYVH
2022-10-24 08:00:05FORECAST20232710735.630.3932.9958.79894587439480.69432.35431.643.9943TF3.6355.667340.072599821122.99228039919070.23052357330821615253260DRYH
2022-10-24 04:00:15FORECAST20232710739.4229.434.41NAN0.42322.12321.994.1132TF7.42358.4267NANNAN0.3538032263053616252552112.5WETM
2022-10-24 00:00:03FORECAST20232710738.2530.8134.5316.2054869145080.48242.14241.994.1324TF6.25386.2567344.877667584155.58891052914110.313499547006351625252245WETL
2022-10-23 20:00:02FORECAST20232710739.1630.6934.92515.6609361292870.38121.861223.8612TF7.16397.1667344.527455325485.39562247263830.344684009004221625252245DRYM
2022-10-23 16:00:05FORECAST20232710739.931.2135.55514.2175782569510.33551.69551.953.6455TF7.9399.967343.596854082944.88511516176640.37085743593631625353275DRYVH
2022-10-23 12:00:02FORECAST20232710739.5227.5133.51513.3422933883550.39471.69471.893.5847TF7.52398.5267343.030852394964.5768182739110.35733341123741625253267.5DRYH
2022-10-23 08:00:03FORECAST20232710734.8928.2431.56513.7386388227650.18511.45511.93.3551TF2.89393.8967343.287304492394.71630028886150.210574665173421615243248DRYM
2022-10-23 04:00:20FORECAST20232710734.8928.231.54514.4326195478440.18521.42521.923.3452TF2.89390.8967343.735717774494.96100683964440.210574665173421615243248DRYM
2022-10-23 00:00:03FORECAST20232710739.1829.3434.2619.4443693506190.20361.56361.763.3236TF7.18392.1867346.950683144796.74623722951680.345382375126231625252245DRYM
2022-10-22 20:00:04FORECAST20232710739.6229.4334.52517.5940056674770.12961.36961.843.2096TF7.62400.6267345.76846449666.0834523239880.360875842439041625342240DRYM
2022-10-22 16:00:04FORECAST20232710739.6230.9335.27519.8257713261430.17671.916723.9167TF7.62400.6267347.193675340726.88338241318810.360875842439041625352250DRYMH
2022-10-22 12:00:03FORECAST20232710738.2531.2234.73522.2993630939991.25753.26752.035.2975TT6.25400.2567348.763905912457.77721297202290.313499547006351625352250WETL
2022-10-22 08:00:04FORECAST20232710739.3529.7234.53521.6325637442641.22223.04222.035.0722TF7.35398.3567348.341593969537.53552173632440.351339529794971625252245WETL
2022-10-22 04:00:09FORECAST20232710739.9529.6934.8221.2546770579941.22222.75222.265.0122TF7.95401.9567348.101944786767.39879441970230.372649266706111625352250WETL
2022-10-22 00:00:06FORECAST20232710741.7332.2636.9957.89306421150011.59672.62671.814.4367TF9.73398.7367339.478671557082.67952695303480.437954693911191625253267.5WETM
2022-10-21 20:00:02FORECAST20232710742.0934.4438.2655.5459509517971.61532.56532.344.9053TF10.09406.0967337.933447997521.87416232756590.4514335478683116253542100WETM
2022-10-21 16:00:06FORECAST20232710742.1134.4138.262.65098995291691.61532.52532.444.9653TF10.11406.1167336.014816306490.890771902059740.4521841647276216253542100WETM
2022-10-21 12:00:05FORECAST20232710740.4931.4935.994.08708425921110.23050.85052.733.5805TF8.49405.4967336.968349383531.37721803661780.392169264644111625334260DRYH
2022-10-21 09:54:45FORECAST20232710740.4931.4435.9654.92415907476940.23051.11052.693.8005TF8.49396.4967337.522545073441.66201470326260.392169264644111625244272DRYH
2022-10-21 08:00:05FORECAST20232710738.6331.0534.8411.0607183075880.23681.31682.673.9868TF6.63395.6367341.549546444123.77778332130290.326376313645971625243254DRYMH
2022-10-21 04:00:14FORECAST20232710738.9330.9734.9511.2116585894240.23591.21592.483.6959TF6.93402.9367341.647809375143.83043859653870.336691316125681625343260DRYH
2022-10-21 00:00:02FORECAST20232710739.7330.6935.2112.6780424402530.03091.04092.553.5909TF7.73389.7367342.600474865864.34350336040020.364786331301681625243254DRYMH
2022-10-20 20:00:04FORECAST20232710739.6530.7135.1813.6440908512420.03091.05092.513.5609TF7.65411.6567343.226151440414.6830087927750.361940918591541625343260DRYH
2022-10-20 16:00:05FORECAST20232710741.0829.6335.35514.9100560097970.00970.77972.53.2797FF9.08413.0867344.043753092265.12971162842630.413809530174881625332230DRYL
2022-10-20 12:00:09FORECAST20232710731.3929.1830.28520.5832426572220.71012.41012.234.6401TF-0.61399.3967347.675564867617.15629051765650.127905016912281615352245WETL
2022-10-20 08:00:05FORECAST20232710731.3829.8130.59518.6591885645040.27121.84122.584.4212TF-0.62395.3867346.449700663356.46447029279350.12770666190031615252240WETL
2022-10-20 04:00:20FORECAST20232710731.5731.0331.317.9711002163330.31011.91012.64.5101TF-0.43394.5767346.009845544516.21817761011820.131511934492131615252240WETL