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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Tuesday, January 11, 2022

[ Monday, January 10, 2022 | Index | Today | Wednesday, January 12, 2022 ]

DAY 103 OF WATER YEAR 2022, FORECAST LAST UPDATED 01/12/2022 07:00:05 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): 38.38°F
MINIMUM TEMPERATURE (Tmin): 31.88°F
AVERAGE TEMPERATURE (Tavg): 35.13°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.771
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: 6
18-DAY CUMULATIVE DD32: -122

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: 3.00 in
DAY 1-3 (P3): 3.15 in
DAY 4-15 (P15): 12.09 in
18-DAY TOTAL (P18): 15.24 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: 125 in
SWE DAY: 11
CALCULATED SNOW DENSITY: 359.55 kg/m3
CALCULATED SWE: 44.94 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: -181

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 4
D1: 1
D2: 1
D3: 5
D4: 1
D5: 2
HSdry: 15.0

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
2022-01-12 07:00:05OBSERVATION2022103-18138.3799231.8799435.12993265.4637079166733.1512.0915.24TT6.37992-121.6200811431.70498734062 114.602006665560.7710977389122916 41151215WETL
2022-01-12 03:00:05OBSERVATION2022103-18138.3799231.8799435.12993265.4637079166733.1512.0915.24TT6.37992-121.6200811431.70498734062 114.602006665560.7710977389122916 41151215WETL
2022-01-11 11:00:01FORECAST2022103-18137.0130.4933.75298.9145561.32941.479412.0913.5694TT5.01-122.9911445.24251987633133.089470141150.722910449062141641141212WETL
2022-01-11 07:00:05FORECAST2022103-18137.6630.734.18298.5023281.74221.892212.0913.9822TT5.66-122.3411445.08259475861132.858190687730.746377321631041641151215WETL
2022-01-11 03:00:04FORECAST2022103-18137.9330.634.265298.374025333332.04692.196912.0914.2869TT5.93-122.0711445.03278516612132.786223515320.755809361974581641151215WETL
2022-01-10 23:00:02FORECAST2022103-18137.9330.4734.2297.773570666672.10952.279512.0914.3695TT5.93-123.0711444.79946110907132.449523765060.755809361974581641151215WETL
2022-01-10 19:00:02FORECAST2022103-18137.6932.1734.93297.674186666672.17012.340112.0914.4301TT5.69-123.3111444.76080824095132.393811854330.747434678783461641151215WETL
2022-01-10 15:00:02FORECAST2022103-18137.9632.0835.02297.6688842.03572.205712.0914.2957TT5.96-123.0411444.75874563132.390839460920.756845583608631641151215WETL
2022-01-10 11:00:02FORECAST2022103-1813831.7334.865297.708510568121.87742.047412.0914.1374TT6-12311444.77415874867132.413052340260.758223511619491641151215WETL
2022-01-10 07:00:07FORECAST2022103-18139.5431.6935.615297.698911091831.79472.024712.0914.1147TT7.54-118.4611444.77042508633132.407671234050.80793818772241641151215WETL
2022-01-10 03:00:07FORECAST2022103-18139.6631.7535.705297.344363291751.9062.13612.0914.226TT7.66-117.3411444.63246191926132.208956288230.811530616268581641151215WETL
2022-01-09 23:00:03FORECAST2022103-18138.8232.6935.755298.383906666671.64051.870512.0913.9605TT6.82-115.1811445.03662186901132.791765843010.78551828606381641151215WETL
2022-01-09 19:00:02FORECAST2022103-18137.8732.9735.42298.380954666671.25531.445312.0913.5353TT5.87-118.1311445.03547568288132.790110094790.753729806741531641141212WETL
2022-01-09 15:00:03FORECAST2022103-18139.9533.2136.58298.196742750011.01331.213312.0913.3033TT7.95-115.0511444.96393390083132.686795730460.820040130638951641141212WETL
2022-01-09 11:00:02FORECAST2022103-18140.6933.0236.855297.963574666671.04761.267612.0913.3576TT8.69-111.3111444.87333115799132.55604802570.840642028461051641141212WETL
2022-01-09 07:00:06FORECAST2022103-18137.934.1136.005298.363559980431.01031.200312.0913.2903TT5.9-117.111445.02872159636132.780353669030.754770767716761641141212WETL
2022-01-09 03:00:08FORECAST2022103-18137.763335.38298.620132683191.0071.21712.0913.307TT5.76-121.2411445.12831453731132.924276348180.749892798453731641141212WETL
2022-01-08 23:00:02FORECAST2022103-18137.133.1335.115298.037101333330.96421.124211.9913.1142TT5.1-115.911444.9019074033132.597274860150.726221973307951641141212WETL
2022-01-08 19:00:04FORECAST2022103-18137.6532.5935.12298.016877925941.04511.195111.9913.1851TT5.65-113.3511444.89404807884132.585935216290.746024354010991641141212WETL
2022-01-08 15:00:03FORECAST2022103-18137.831.8734.835297.900666174871.0741.22411.9913.214TT5.8-114.211444.84887744491132.520776937980.751291727563791641141212WETL
2022-01-08 11:00:03FORECAST2022103-18137.7532.0734.91298.221218780840.7950.94511.9912.935TT5.75-112.2511444.97344150568132.700522050930.74954241607285164113129WETL
2022-01-08 07:00:10FORECAST2022103-18137.9333.2635.595298.989380427960.87091.030912.0213.0509TT5.93-115.0711445.27153029137133.131458964030.755809361974581641141212WETL
2022-01-08 03:00:04FORECAST2022103-18138.3832.5835.48298.993690610440.73760.867612.0712.9376TT6.38-112.6211445.27320123788133.133877768040.77110040877547164113129WETL
2022-01-07 23:00:03FORECAST2022103-18139.0934.5836.835298.856094430420.59220.722210.8411.5622TT7.09-113.9111445.21984971962133.056665450110.79409832633213164113129WETL
2022-01-07 19:00:03FORECAST2022103-18139.2334.4736.85298.605429969460.57060.750610.8211.5706TT7.23-114.7711445.12260918855132.916028105880.79846605518248164113129WETL
2022-01-07 15:00:03FORECAST2022103-18139.3834.4736.925298.877529376630.58740.787410.9111.6974TT7.38-112.6211445.22816212799133.068693105710.8030837513942164113129WETL
2022-01-07 11:00:03FORECAST2022103-18141.0633.8637.46301.419915727710.44110.761110.9611.7211TT9.06-109.9411446.21088867915134.496848462450.850341084092671651131210.5WETL
2022-01-07 07:00:07FORECAST2022103-18139.5733.6236.595303.91104214060.86031.020311.4412.4603TT7.57-108.4311447.16766545253135.899191219260.808840191634531641141212WETL
2022-01-07 03:00:07FORECAST2022103-18138.4733.5536.01305.040229062880.86171.021711.6812.7017TT6.47-116.5311447.59936671946136.53581335250.774092932998711641141212WETL
2022-01-06 23:00:02FORECAST2022103-1814234.1538.075304.251396052440.63350.983510.5411.5235TT10-10511447.29791708607136.091015724790.87318293419221651131210.5WETL
2022-01-06 19:00:02FORECAST2022103-18142.4334.9638.695304.936653651760.6891.06910.4611.529TT10.43-111.5711447.559820195136.477393879250.882780554529781651141214WETL
2022-01-06 15:00:02FORECAST2022103-18142.4734.8338.65304.632802393030.6891.06910.2411.309TT10.47-110.5311447.44374553429136.306042115340.883646550754181651141214WETL
2022-01-06 11:00:03FORECAST2022103-18142.8934.7638.825309.539822980170.31970.429710.3110.7397TT10.89-109.1111449.30736898641139.078523459740.89246713911483165112127WETL
2022-01-06 07:00:08FORECAST2022103-18142.9334.3138.62312.857471100640.31830.438311.3211.7583TT10.93-115.0711450.55427216951140.959270184540.89328143969968165112127WETL
2022-01-06 03:00:10FORECAST2022103-18142.9334.3138.62314.389011723080.30880.418811.7412.1588TT10.93-107.0711451.12635028177141.829167427330.89328143969968165112127WETL
2022-01-05 23:00:04FORECAST2022103-18141.8833.5637.72146.820573974470.40020.450212.7313.1802TT9.88-105.1211373.2563353547654.8017093963930.87040981247424165112127WETL
2022-01-05 19:00:03FORECAST2022103-18141.9833.837.89142.575131944990.40120.451212.8913.3412TT9.98-104.0211370.8207996448452.8698244373090.87272363049115165112127WETL
2022-01-05 15:00:03FORECAST2022103-18142.0533.7737.91143.999462976290.40120.451212.7413.1912TT10.05-102.9511371.6408426913553.516081767610.87432615584523165112127WETL
2022-01-05 11:00:04FORECAST2022103-18139.733.6636.68146.04879180580.86121.291212.7614.0512TT7.7-107.311372.8155284574854.4492574976560.812718844196921641141212WETL
2022-01-05 07:00:06FORECAST2022103-18139.7833.7236.75149.095395599890.82221.252212.413.6522TT7.78-112.2211374.5505942461655.8437690213040.815081397522481641141212WETL
2022-01-05 03:00:06FORECAST2022103-18139.8333.7336.78145.922087323930.82221.252212.5113.7622TT7.83-110.1711372.7430780029554.3914479777350.816548566750751641141212WETL
2022-01-04 23:00:03FORECAST2022103-18143.234.0238.61140.569441685180.06370.063711.9612.0237TT11.2-94.811369.6610035171451.9630408771870.89866213512234165111123.5WETL
2022-01-04 19:00:04FORECAST2022103-18142.2331.636.915144.5955102870.09110.091111.8611.9511TT10.23-92.7711371.9831308727153.7870906266950.8783823157913165112127WETL
2022-01-04 15:00:03FORECAST2022103-18142.2431.636.92142.712621724960.08530.085311.111.1853TT10.24-95.7611370.9000873154552.9321238588040.87860493705658165111123.5WETL
2022-01-04 11:00:04FORECAST2022103-18136.133.7334.915145.078041981180011.0311.03TT4.1-108.911372.2598518652254.006730416810.68837247114958163111122.5WETL
2022-01-04 07:00:06FORECAST2022103-18135.8434.2435.04143.725828139560011.4611.46TT3.84-103.1611371.4835305647453.3917780706260.67817282158813163111122.5WETL
2022-01-04 03:00:08FORECAST2022103-18135.8435.5935.715145.246711582670011.2311.23TT3.84-99.1611372.3565000907154.0835571746080.67817282158813163111122.5WETL