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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Friday, April 8, 2022

[ Thursday, April 7, 2022 | Index | Today | Saturday, April 9, 2022 ]

DAY 190 OF WATER YEAR 2022, FORECAST LAST UPDATED 04/09/2022 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): 49.28°F
MINIMUM TEMPERATURE (Tmin): 21.85°F
AVERAGE TEMPERATURE (Tavg): 35.56°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.789
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: 17
18-DAY CUMULATIVE DD32: 60

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: 0.53 in
DAY 1-3 (P3): 0.53 in
DAY 4-15 (P15): 3.65 in
18-DAY TOTAL (P18): 4.18 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: 147 in
SWE DAY: 97
CALCULATED SNOW DENSITY: 435.93 kg/m3
CALCULATED SWE: 64.05 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: -95

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: 3
D4: 1
D5: 2
HSdry: 9.0

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
2022-04-09 04:00:05OBSERVATION2022190-9549.2821.8499835.56499146.932120833330.529999999999970.529999999999973.654.18TF17.2860.2897435.92660309744 64.0516203207780.789375528146216 4113129WETL
2022-04-09 00:00:01FORECAST2022190-9422.422.422.4154.040453644770.0080.0083.653.658FF-9.633.498439.4281555885267.6897124311420.033667592180023161111121.5DRYL
2022-04-08 12:00:01FORECAST2022190-9429.7517.4323.59153.879023853910.36210.36213.654.0121TF-2.2540.7598439.3631637902667.6087747614120.13393537084107161112123WETL
2022-04-08 08:00:02FORECAST2022190-9431.3317.4124.37153.974144392080.37680.37683.654.0268TF-0.6742.3398439.4014626407767.656464254740.17025122519331161112123WETL
2022-04-08 04:00:06FORECAST2022190-9439.5918.3128.95154.055831590770.56230.56233.654.2123TF7.5950.5998439.4343453751567.6974235063170.44258495526395162113126WETL
2022-04-08 00:00:02FORECAST2022190-9548.2718.3633.315158.989605279590.53840.53843.654.1884TF16.2746.2797440.8120099393770.0845274627640.75970496323813164113129WETL
2022-04-07 20:00:01FORECAST2022190-9544.6318.3231.475160.204776009390.56710.56713.654.2171TF12.6349.6397441.2961198122570.6977460283340.63644810112962163113127.5WETL
2022-04-07 16:00:01FORECAST2022190-9544.4218.3231.37160.350163596270.60570.60573.654.2557TF12.4249.4297441.3539405164570.7711765656690.62870376383289163113127.5WETL
2022-04-07 12:00:03FORECAST2022190-9544.4918.7831.635159.429240443960.63160.63163.654.2816TF12.4949.4997440.9873280016670.3062747487160.63129118082314163113127.5WETL
2022-04-07 08:00:02FORECAST2022190-9544.9819.0732.025159.471471555980.62050.62053.654.2705TF12.9841.9897441.0041586543970.3275821429220.64923096157457163113127.5WETL
2022-04-07 04:00:05FORECAST2022190-9544.6219.5432.08159.817666749660.62680.62683.654.2768TF12.6245.6297441.1420621426770.5022950767770.63608055530008163113127.5WETL
2022-04-07 00:00:01FORECAST2022190-9545.0219.3932.205162.15343469210.60220.60223.654.2522TF13.0241.0297442.0693301730271.6830602595910.65068148668458163113127.5WETL
2022-04-06 20:00:03FORECAST2022190-9545.119.3732.235162.412456711190.64080.64083.654.2908TF13.149.197442.1718199343271.8142115639920.65357592927546163113127.5WETL
2022-04-06 16:00:02FORECAST2022190-9544.6718.8131.74161.545554104550.52160.52163.654.1716TF12.6748.6797441.8285391727971.3754361798730.63791702644002163113127.5WETL
2022-04-06 12:00:02FORECAST2022190-9544.718.8531.775160.743138218850.42650.42653.654.0765TF12.748.797441.5101198745970.9697222240240.63901739088986163112125WETL
2022-04-06 08:00:03FORECAST2022190-9544.2318.5531.39161.090613185390.45740.46743.654.1174TF12.2344.2397441.6480865655171.1453610769910.62165171329431163112125WETL
2022-04-06 04:00:06FORECAST2022190-9544.318.7931.545160.972887854530.4820.4923.654.142TF12.347.397441.6013567663971.0858456791640.62425469423242163113127.5WETL
2022-04-06 00:00:02FORECAST2022190-9543.2118.5830.895152.443461770750.50860.51862.943.4586FF11.2139.2197438.1782403677866.7974078342810.5831531992426163113127.5DRYL
2022-04-05 20:00:02FORECAST2022190-9543.0918.8530.97151.306283656670.50160.50163.083.5816TF11.0944.0997437.7162279360966.2292157452280.57856320918402163113127.5DRYL
2022-04-05 16:00:02FORECAST2022190-9542.8619.6631.26150.363726094790.35520.35523.083.4352FF10.8641.8697437.3322731459765.7589101317310.5697363450082163112125DRYL
2022-04-05 12:00:03FORECAST2022190-9542.919.5631.23151.694797711120.45710.45713.083.5371TF10.945.997437.8742234289866.4232417459750.57127408689388163112125DRYL
2022-04-05 08:00:03FORECAST2022190-9542.1820.0131.095152.028545116110.40740.42743.173.5974TF10.1841.1897438.0098227425166.5899960981110.54345162388167163112125DRYL
2022-04-05 04:00:06FORECAST2022190-9541.6920.1830.935153.853058486910.37660.37663.373.7466TF9.6939.6997438.7490817450967.5028881348060.52438571121898163112125DRYL
2022-04-05 00:00:04FORECAST2022190-9541.3419.7730.555143.197432215540.30340.30342.152.4534FF9.3424.3497434.3827949956262.202500841980.51073035470312163112125DRYL
2022-04-04 20:00:03FORECAST2022190-9540.4521.8131.13138.55555017430.1670.1773.153.327FF8.4526.4597432.4434546349859.9174407762250.4759871713473162112124DRYL
2022-04-04 16:00:02FORECAST2022190-9539.7321.830.765138.399814933350.16860.16863.13.2686FF7.7324.7397432.3779924544859.8410341369540.4480011302563162112124DRYL
2022-04-04 12:00:03FORECAST2022190-9539.6321.8330.73143.473857324890.13190.13193.143.2719FF7.6322.6397434.4975633639762.3390414140950.44413138463162112124DRYL
2022-04-04 08:00:03FORECAST2022190-9539.423.0331.215146.15989443150.12280.12283.623.7428TF7.428.497435.6085877739763.6685052024980.43525174969548162112124DRYL
2022-04-04 04:00:06FORECAST2022190-9539.422.9831.19148.476142268290.12280.13284.154.2828TF7.427.497436.5605887055464.8188320773710.43525174969548162112124WETL
2022-04-04 00:00:03FORECAST2022190-9539.9725.4232.695153.79092034110.24420.25424.264.5142TF7.9725.9797438.7239608315967.4717617119840.45730803886687162112124WETL
2022-04-03 20:00:02FORECAST2022190-9540.4426.5333.485150.973088790190.23950.24954.624.8695TF8.4423.4497437.5806046313866.0628954758770.47559734007841162112124WETL
2022-04-03 16:00:03FORECAST2022190-9540.4426.5233.48150.476900776570.23950.24954.54.7495TF8.4425.4497437.3784239038665.8153496955950.47559734007841162112124WETL
2022-04-03 12:00:03FORECAST2022190-9541.4725.6133.54152.298880524190.26070.26074.54.7607TF9.4731.4797438.1195739575966.7251206494750.51580466908996163112125WETL
2022-04-03 08:00:03FORECAST2022190-9541.3725.9233.645154.508139627340.26280.26284.724.9828TF9.3731.3797439.0136737391167.8311860003940.51190153445019163112125WETL
2022-04-03 04:00:07FORECAST2022190-9541.3825.9133.645154.147722202130.26280.26284.614.8728TF9.3833.3897438.868153022567.6505261354770.51229190539228163112125WETL
2022-04-03 00:00:03FORECAST2022190-9540.9224.6132.765153.945527020530.51830.51834.354.8683TF8.9224.9297438.7864571439167.5492123944890.4943287183837162113126WETL
2022-04-02 20:00:03FORECAST2022190-9541.2825.8133.545154.26663030030.5260.5264.354.876TF9.2835.2897438.9161776129467.7101197046360.50838772771407163113127.5WETL
2022-04-02 16:00:03FORECAST2022190-9541.2325.6833.455152.78205713570.53490.53494.24.7349TF9.2340.2397438.3155471758166.9667509720780.50643531410185163113127.5WETL
2022-04-02 12:00:04FORECAST2022190-9541.7424.833.27151.440074099540.21510.21514.144.3551TF9.7441.7497437.7706535747166.2960202159570.52633451504018163112125WETL
2022-04-02 08:00:03FORECAST2022190-9542.3824.733.54152.724518479490.22280.22284.274.4928TF10.3830.3897438.29222249366.9379686335490.55120747404641163112125WETL
2022-04-02 04:00:07FORECAST2022190-9542.3824.733.54153.398884877120.22280.22284.324.5428TF10.3836.3897438.5653791522267.2754401076610.55120747404641163112125WETL
2022-04-02 00:00:04FORECAST2022190-9536.3324.2830.305156.977129384530.54480.55484.434.9848TF4.3323.3397440.0069692182669.0710309370720.32147965899799162113126WETL
2022-04-01 20:00:04FORECAST2022190-9533.5424.7329.135154.869150110780.30390.37394.394.7639TF1.5424.5497439.1593004203268.012227619340.23064313953154161112123WETL
2022-04-01 16:00:03FORECAST2022190-9533.5326.2829.905154.854026889390.16590.23594.44.6359TF1.5323.5397439.1532025995168.0046418439050.23034544747807161112123WETL
2022-04-01 12:00:04FORECAST2022190-9537.4434.7636.1153.594209642120.06730.08734.344.4273TF5.4435.4497438.6444094194967.3732413787230.36133332559414162111122WETL
2022-04-01 08:00:03FORECAST2022190-9538.1135.8536.98153.393239719970.00750.02754.174.1975TF6.1134.1197438.5630944846567.2726138846180.38617368286561162111122WETL
2022-04-01 04:00:06FORECAST2022190-9538.1637.3237.74153.717802538250.0030.0234.094.113TF6.1632.1697438.6943960365867.4351385445860.38804773229875162111122WETL