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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, January 5, 2022

[ Tuesday, January 4, 2022 | Index | Today | Thursday, January 6, 2022 ]

DAY 97 OF WATER YEAR 2022, FORECAST LAST UPDATED 01/06/2022 07:00:06 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): 27.52°F
MINIMUM TEMPERATURE (Tmin): 19.15°F
AVERAGE TEMPERATURE (Tavg): 23.33°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.290
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: -152

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: 1.08 in
DAY 1-3 (P3): 3.20 in
DAY 4-15 (P15): 7.53 in
18-DAY TOTAL (P18): 10.73 in

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

PRECIP THRESHOLD B (PB) EXCEEDED: True
P3 > (-0.67 * P15 + 4.5)
Snow at Paradise DEPTH: 133 in
SWE DAY: 5
CALCULATED SNOW DENSITY: 358.96 kg/m3
CALCULATED SWE: 47.74 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: -187

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
2022-01-06 07:00:06OBSERVATION202297-18727.5199819.1499823.33498296.866204166671.083.27.5310.73TT-4.48002-152.480025440.90726452313 130.890466008490.2904131735863616 21151210WETL
2022-01-06 03:00:08OBSERVATION202297-18727.5199819.1499823.33498296.866204166671.083.27.5310.73TT-4.48002-152.480025440.90726452313 130.890466008490.2904131735863616 21151210WETL
2022-01-05 11:00:02FORECAST202297-18731.2320.2125.72133.735371048991.25823.37827.5310.9082TT-0.77-148.775360.3087287741548.1860215348030.446587781126711621151210WETL
2022-01-05 07:00:05FORECAST202297-18730.3419.7225.03133.594839908821.15063.27067.5310.8006TT-1.66-149.665360.2239056467948.1240550062120.407285527043931621151210WETL
2022-01-05 03:00:05FORECAST202297-18730.7920.2225.505133.59322524251.1053.2257.5310.755TT-1.21-149.215360.2229308751348.1233431419160.427066766188491621151210WETL
2022-01-04 23:00:01FORECAST202297-18731.2420.3925.815127.884654399871.14072.77077.5310.3007TT-0.76-148.765356.7515618457245.6230501932550.44703313388991621151210WETL
2022-01-04 19:00:01FORECAST202297-18732.2222.7227.47127.57220794611.09252.72257.5310.2525TT0.22-147.785356.5601071103945.4871601295720.49091388116461621151210WETL
2022-01-04 15:00:02FORECAST202297-18730.3120.8425.575127.482069856890.90492.53497.5310.0649TT-1.69-149.695356.5048458359145.4479756611740.405974558240741621151210WETL
2022-01-04 11:00:02FORECAST202297-18729.8921.1125.5129.786720620790.86872.49877.5310.0287TT-2.11-150.115357.9138000125946.4524583685590.387737948673441621151210WETL
2022-01-04 07:00:04FORECAST202297-18730.1722.0426.105130.885334908660.80542.69547.5310.2254TT-1.83-146.835358.5825432824146.9331962699170.399870857736631621151210WETL
2022-01-04 03:00:06FORECAST202297-18732.1722.727.435131.727494486310.92452.94457.5310.4745TT0.17-144.835359.0939166120447.3025419205790.488667857744341621151210WETL
2022-01-03 23:00:02FORECAST202297-18730.1721.0925.63117.549678041581.05442.29447.539.8244TT-1.83-153.835350.3373924574941.1820476893040.399870857736631621151210WETL
2022-01-03 19:00:02FORECAST202297-18731.120.7525.925117.491617041891.07072.33077.539.8607TT-0.9-147.95350.3008804847641.1574168993520.4408045258571621151210WETL
2022-01-03 15:00:01FORECAST202297-18730.1721.0625.615118.104938475150.95392.29397.539.8239TT-1.83-155.835350.6862991282241.4177837826170.399870857736631621151210WETL
2022-01-03 11:00:03FORECAST202297-18731.7819.325.54119.584467119030.92982.24987.539.7798TT-0.22-152.225351.6135854337342.0475232459040.471166736916951621151210WETL
2022-01-03 07:00:04FORECAST202297-18730.6322.1126.37121.471879524770.9692.5697.5310.099TT-1.37-148.375352.7914636344942.8542421679750.420009680657311621151210WETL
2022-01-03 03:00:03FORECAST202297-18728.9822.0525.515123.376490790910.81362.87367.5310.4036TT-3.02-151.025353.9743647184143.67211494890.349111771112111621151210WETL
2022-01-02 23:00:03FORECAST202297-18729.121.825.45128.699648711460.86213.25217.8611.1121TT-2.9-151.95357.2502434084745.9779808287520.35412663454821621151210WETL
2022-01-02 19:00:02FORECAST202297-18733.2324.0528.64128.261704584451.02863.34867.8611.2086TT1.23-146.775356.9824009502345.7871712525280.536247672447511631151212.5WETL
2022-01-02 15:00:02FORECAST202297-18733.823.6328.715127.582096596020.85883.18887.8611.0488TT1.8-142.25356.5661688095745.4914593919350.561663179340161631151212.5WETL
2022-01-02 11:00:04FORECAST202297-18732.5524.1428.345131.137701240910.74412.99417.8610.8541TT0.55-144.455358.7358991245447.0438011637820.505741527159281631151212.5WETL
2022-01-02 07:00:08FORECAST202297-18731.7621.6226.69131.434779413330.77023.11027.8510.9602TT-0.24-149.245358.9162991553447.1740846073320.470270454084511621151210WETL
2022-01-02 03:00:09FORECAST202297-18731.120.2125.655132.502728406080.73583.15587.9211.0758TT-0.9-144.95359.5636856138247.6431693795770.4408045258571621151210WETL
2022-01-01 23:00:03FORECAST202297-18732.9322.3227.625135.726799879841.34743.66747.9611.6274TT0.93-138.075361.5074855379849.0662541446780.522804683785841631151212.5WETL
2022-01-01 19:00:02FORECAST202297-18733.421.9927.695137.408029729071.42513.84517.9111.7551TT1.4-139.65362.5148058000449.8124452125990.543848023827851631151212.5WETL
2022-01-01 15:00:02FORECAST202297-18734.7724.3129.54136.219874090521.46223.86227.9711.8322TT2.77-136.235361.8033602146249.2848081739640.604281257497341631151212.5WETL
2022-01-01 11:00:05FORECAST202297-18729.9922.6426.315140.740077638571.32043.83048.0611.8904TT-2.01-140.015364.4985587601951.2995554590570.39205923683191621151210WETL
2022-01-01 07:00:07FORECAST202297-18734.6925.9530.32140.430024997651.75224.32228.1312.4522TT2.69-136.315364.3146748598551.160718897580.600805853299231631151212.5WETL
2022-01-01 03:00:08FORECAST202297-18734.824.929.85140.068398277441.75224.26228.1112.3722TT2.8-139.25364.1000207262550.9989067159070.605582416174151631151212.5WETL
2021-12-31 23:00:04FORECAST202297-18732.1922.5827.385134.660039445680.57872.95877.8610.8187TT0.19-137.815360.8660945623848.5942425283790.489566227979661621151210WETL
2021-12-31 19:00:03FORECAST202297-18730.1522.726.425137.428458439310.64973.31977.9711.2897TT-1.85-134.855362.5270193676149.8215294142890.399000856207371621151210WETL
2021-12-31 15:00:03FORECAST202297-18731.1622.6226.89134.776161702080.60393.02397.8810.9039TT-0.84-133.845360.9359975292548.6455683671020.443472228685771621151210WETL
2021-12-31 11:00:03FORECAST202297-18733.5922.3327.96136.646653600410.52862.93867.9210.8586TT1.59-141.415362.059155015149.4741719382050.552323461004121631151212.5WETL
2021-12-31 07:00:06FORECAST202297-18728.8623.0825.97137.043068756790.50452.88458.0410.9245TT-3.14-146.145362.2965023522249.6502244822010.344123105332721621151210WETL
2021-12-31 03:00:06FORECAST202297-18728.8322.3325.58135.616313546340.50452.75457.9210.6745TT-3.17-144.175361.4411361472649.0173144482940.342880122613681621151210WETL
2021-12-30 23:00:03FORECAST202297-18732.5221.1126.815135.624253575120.69833.70837.2910.9983TT0.52-133.485361.4459049242449.0208310631320.504393579296211631151212.5WETL
2021-12-30 19:00:04FORECAST202297-18732.4821.5927.035132.866208853820.69833.60837.0910.6983TT0.48-133.525359.7836257686647.8030863635630.502596240105221631151212.5WETL
2021-12-30 15:00:02FORECAST202297-18729.2721.1825.225132.866521344430.59613.46617.0110.4761TT-2.73-137.735359.7838147677847.8032239042260.361274342438711621151210WETL
2021-12-30 11:00:03FORECAST202297-18727.9520.5124.23131.561173379490.33952.59957.29.7995TT-4.05-139.055358.9930103293847.229541673970.307222408410721621151210WETL
2021-12-30 07:00:11FORECAST202297-18727.9320.5124.22132.582790096050.33952.58957.5310.1195TT-4.07-134.075359.6121479706847.6783819303850.306431194148271621151210WETL
2021-12-30 03:00:09FORECAST202297-18727.3119.9623.635135.083236123680.38892.51897.7910.3089TT-4.69-138.695361.1207500526248.7813595485190.282364533995751621151210WETL
2021-12-29 23:00:05FORECAST202297-18727.3118.3322.82136.793407349010.56812.07817.9410.0181TT-4.69-124.695362.1470493738849.5393288452440.282364533995751621151210WETL
2021-12-29 19:00:02FORECAST202297-18724.4718.5221.495138.388773340840.50542.06548.0410.1054TT-7.53-130.535363.1004414767750.2490246954880.18517907936193161115127.5WETL
2021-12-29 15:00:04FORECAST202297-18723.7218.5321.125137.689568111880.43231.99237.919.9023TT-8.28-137.285362.6830713448549.9376754549610.16346151448538161115127.5WETL
2021-12-29 11:00:04FORECAST202297-18726.1519.9223.035139.356889362620.46332.61337.5810.1933TT-5.85-130.855363.6771077356550.6809104664350.23993589207928161115127.5WETL
2021-12-29 07:00:14FORECAST202297-18725.0819.8322.455136.540621740810.29682.50687.6610.1668TT-6.92-122.925361.9956295869849.4271083312610.20410029905691161115127.5WETL
2021-12-29 03:00:08FORECAST202297-18725.0823.3224.2135.671132946030.15822.36827.7410.1082TT-6.92-126.925361.4740586888649.0415950729180.20410029905691161115127.5WETL