MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, September 28, 2022

[ Tuesday, September 27, 2022 | Index | Today | Thursday, September 29, 2022 ]

DAY 363 OF WATER YEAR 2022, FORECAST LAST UPDATED 09/29/2022 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:
H
HIGH

MODEL USED FOR HAZARD CLASS DETERMINATION:

DRY

MODEL VARIABLES AND OUTPUT:
Temperature at Paradise MAXIMUM TEMPERATURE (Tmax): 61.04°F
MINIMUM TEMPERATURE (Tmin): 39.67°F
AVERAGE TEMPERATURE (Tavg): 50.35°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.688
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: 29
18-DAY CUMULATIVE DD32: 508

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: 0.12 in
DAY 1-3 (P3): 0.12 in
DAY 4-15 (P15): 0.19 in
18-DAY TOTAL (P18): 0.31 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: 0 in
SWE DAY: 270
CALCULATED SNOW DENSITY: 476.00 kg/m3
CALCULATED SWE: 0.00 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: 78

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 3
D1: 4
D2: 4
D3: 2
D4: 5
D5: 2
HSdry: 55.0

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
2022-09-29 04:00:05OBSERVATION20223637861.0399439.6699850.3549600.120.120.190.31FF29.03994508.03994270475.99528780031 00.6884248384367716 34425255DRYH
2022-09-29 00:00:02FORECAST20223637839.939.939.900.00180.00180.190.1918FF7.9486.9271476.4576466684500.091121707611491614315220DRYL
2022-09-28 12:00:01FORECAST20223637857.942.2950.09500.18040.18040.190.3704FF25.9504.9271476.4576466684500.58720646129931634425255DRYH
2022-09-28 08:00:02FORECAST20223637853.7943.2648.52500.18970.18970.190.3797FF21.79500.79271476.4576466684500.446548886018231624425250DRYMH
2022-09-28 04:00:25FORECAST20223637853.7843.348.5400.12330.12330.190.3133FF21.78500.78271476.4576466684500.44620765842071624425250DRYMH
2022-09-28 00:00:02FORECAST20223637856.9543.2850.11500.21910.21910.190.4091FF24.95488.95270475.9952878003100.555024605629621634325250DRYMH
2022-09-27 20:00:03FORECAST20223637856.0143.5649.78500.10030.10030.190.2903FF24.01501.01270475.9952878003100.522819567708831634425255DRYH
2022-09-27 16:00:02FORECAST20223637855.5743.2849.42500.21220.21220.190.4022FF23.57500.57270475.9952878003100.507680474718811634425255DRYH
2022-09-27 12:00:02FORECAST20223637855.6942.4849.08500.26380.26380.190.4538FF23.69500.69270475.9952878003100.511811334918321634425255DRYH
2022-09-27 08:00:02FORECAST20223637855.4942.9849.23500.24430.24430.190.4343FF23.49499.49270475.9952878003100.504926082876041634425255DRYH
2022-09-27 04:00:08FORECAST20223637855.5342.9449.23500.21160.21160.190.4016FF23.53500.53270475.9952878003100.506303316362361634425255DRYH
2022-09-27 00:00:03FORECAST20223637855.4742.5749.0200.17310.17310.190.3631FF23.47486.47270475.9952878003100.504237443088281634325250DRYMH
2022-09-26 20:00:02FORECAST20223637855.2542.2348.7400.10040.10040.190.2904FF23.25498.25270475.9952878003100.496662023499541624325245DRYM
2022-09-26 16:00:01FORECAST20223637855.6842.6949.18500.14430.14430.190.3343FF23.68497.68270475.9952878003100.511467138844191634325250DRYMH
2022-09-26 12:00:05FORECAST20223637854.8942.3548.6200.13630.13630.190.3263FF22.89497.89270475.9952878003100.484269727526461624325245DRYM
2022-09-26 08:00:02FORECAST20223637853.9841.647.7900.19410.19410.190.3841FF21.98495.98270475.9952878003100.453039445513121624325245DRYM
2022-09-26 04:00:10FORECAST20223637854.2741.7247.99500.20760.20760.190.3976FF22.27494.27270475.9952878003100.462969739577011624325245DRYM
2022-09-26 00:00:06FORECAST20223637854.142.1548.12500.19680.19680.190.3868FF22.1482.1270475.9952878003100.457145331833561624325245DRYM
2022-09-25 20:00:04FORECAST20223637854.3842.4248.400.22180.22180.190.4118FF22.38493.38270475.9952878003100.466742787974881624325245DRYM
2022-09-25 16:00:02FORECAST20223637855.3443.2949.31500.1250.1250.190.315FF23.34494.34270475.9952878003100.499761068382131634325250DRYMH
2022-09-25 12:00:03FORECAST20223637855.6743.5449.60500.05460.05460.190.2446FF23.67494.67270475.9952878003100.511122934229321634315225DRYL
2022-09-25 08:00:04FORECAST20223637855.3943.2349.3100.0220.0220.190.212FF23.39495.39270475.9952878003100.50148277818541634315225DRYL
2022-09-25 04:00:13FORECAST20223637855.443.2349.31500.0220.0220.190.212FF23.4493.4270475.9952878003100.501827117858161634315225DRYL
2022-09-25 00:00:04FORECAST20223637853.8641.0247.4400.0630.0630.190.253FF21.86483.86270475.9952878003100.448938573446791624315222.5DRYL
2022-09-24 20:00:03FORECAST20223637853.8442.0647.9500.06850.06850.190.2585FF21.84493.84270475.9952878003100.448255612707321624315222.5DRYL
2022-09-24 16:00:07FORECAST20223637853.8942.0647.97500.06850.06850.190.2585FF21.89493.89270475.9952878003100.449963297658431624315222.5DRYL
2022-09-24 12:00:07FORECAST20223637854.5841.347.9400.07520.07520.190.2652FF22.58496.58270475.9952878003100.473610302300341624315222.5DRYL
2022-09-24 08:00:03FORECAST20223637855.642.4249.0100.03770.03770.190.2277FF23.6491.6270475.9952878003100.508713284309931634315225DRYL
2022-09-24 04:00:08FORECAST20223637855.643.5149.55500.03690.03690.190.2269FF23.6493.6270475.9952878003100.508713284309931634315225DRYL
2022-09-24 00:00:04FORECAST20223637855.1843.9449.5600.01830.01830.190.2083FF23.18482.18270475.9952878003100.494251784938231624315222.5DRYL
2022-09-23 20:00:03FORECAST20223637856.1844.350.2400.02790.02790.190.2179FF24.18493.18270475.9952878003100.528661150910521634315225DRYL
2022-09-23 16:00:06FORECAST20223637857.0944.2650.67500.02790.02790.190.2179FF25.09493.09270475.9952878003100.559795371431171634315225DRYL
2022-09-23 12:00:03FORECAST20223637856.2542.2149.2300.10280.10280.190.2928FF24.25490.25270475.9952878003100.531064789529041634325250DRYMH
2022-09-23 08:00:03FORECAST20223637856.2641.9549.10500.10230.10230.190.2923FF24.26485.26270475.9952878003100.531408076124081634325250DRYMH
2022-09-23 04:00:10FORECAST20223637856.6143.2749.9400.07930.07930.190.2693FF24.61487.61270475.9952878003100.543406585233631634315225DRYL
2022-09-23 00:00:04FORECAST20223637855.3944.1149.7500.05910.05910.210.2691FF23.39475.39270475.9952878003100.50148277818541634315225DRYL
2022-09-22 20:00:06FORECAST20223637854.5342.5348.5300.08240.08240.220.3024FF22.53486.53270475.9952878003100.471892607974621624315222.5DRYL
2022-09-22 16:00:04FORECAST20223637854.4542.5948.5200.08240.08240.210.2924FF22.45487.45270475.9952878003100.469145397352521624315222.5DRYL
2022-09-22 12:00:06FORECAST20223637867.2856.1461.7100.00190.00190.210.2119FF35.28503.28270475.9952878003100.848535975998661644415230DRYL
2022-09-22 08:00:04FORECAST20223637866.4554.3860.41500.02670.02670.20.2267FF34.45492.45270475.9952878003100.831089920057871644315227.5DRYL
2022-09-22 04:00:10FORECAST20223637865.7753.8559.8100.02670.02670.20.2267FF33.77496.77270475.9952878003100.815874328144851644315227.5DRYL
2022-09-22 00:00:05FORECAST20223637855.6946.3351.0100.02140.02140.210.2314FF23.69475.69270475.9952878003100.511811334918321634315225DRYL
2022-09-21 20:00:04FORECAST20223637855.1347.1251.12500.020.020.190.21FF23.13491.13270475.9952878003100.492530309300981624315222.5DRYL
2022-09-21 16:00:05FORECAST20223637858.8946.8352.860000.20.2FF26.89496.89270475.9952878003100.620127606044021634315225DRYL
2022-09-21 12:00:05FORECAST20223637857.4251.254.310000.190.19FF25.42496.42270475.9952878003100.571005251858611634315225DRYL
2022-09-21 08:00:04FORECAST20223637853.6251.5252.570000.190.19FF21.62490.62270475.9952878003100.440753603050481624315222.5DRYL
2022-09-21 04:00:13FORECAST20223637853.6252.2652.940000.190.19FF21.62493.62270475.9952878003100.440753603050481624315222.5DRYL