MOUNT RAINIER
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MORA Debris Flow Hazard - View Day

Daily Debris Flow Hazard (DFH) for Wednesday, February 23, 2022

[ Tuesday, February 22, 2022 | Index | Today | Thursday, February 24, 2022 ]

DAY 146 OF WATER YEAR 2022, FORECAST LAST UPDATED 02/24/2022 07:00:03 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): 0.00°F
MINIMUM TEMPERATURE (Tmin): 0.00°F
AVERAGE TEMPERATURE (Tavg): 0.00°F

MAXIMUM TEMPERATURE PERCENTILE (Tmax percentile): 0.000
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: -32
18-DAY CUMULATIVE DD32: 43

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: 0.02 in
DAY 1-3 (P3): 1.21 in
DAY 4-15 (P15): 3.71 in
18-DAY TOTAL (P18): 3.76 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: 137 in
SWE DAY: 54
CALCULATED SNOW DENSITY: 401.56 kg/m3
CALCULATED SWE: 55.01 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: -138

July 11 is the average snow melt-out day (where snow depth goes down to 0 in) at Paradise
Calculated Variables D0: 1
D1: 1
D2: 1
D3: 1
D4: 5
D5: 2
HSdry: 7.5

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
2022-02-24 07:00:03OBSERVATION2022146-1380NAN00.022.552.57FF-324354NAN NAN2.1010286395839E-516 1111527.5DRYL
2022-02-24 03:00:04OBSERVATION2022146-1380NAN00.022.552.57FF-324354NAN NAN2.1010286395839E-516 1111527.5DRYL
2022-02-23 11:00:02FORECAST2022146-13823.5513.8618.7050.0276576918386220.00450.02452.552.5745FF-8.4566.5554320.913313605110.00887572153460130.10371902872946161111527.5DRYL
2022-02-23 07:00:04FORECAST2022146-13824.614.3914.5NAN0.0060.0262.552.576FF-7.3967.6154NANNAN0.12851649354155161111527.5DRYL
2022-02-23 03:00:07FORECAST2022146-13823.823.9813.9NAN0.00470.02472.552.5747FF-8.1866.8254NANNAN0.10967973248517161111527.5DRYL
2022-02-22 23:00:02FORECAST2022146-13824.64.5914.595127.003432627950.00050.03052.552.5805FF-7.486.654397.2722957064650.4549452427060.12826486052116161111121.5DRYL
2022-02-22 19:00:01FORECAST2022146-13824.914.4614.685127.00323189750.00060.03062.552.5806FF-7.0986.9154397.2721934153350.4548525067540.13622466348347161111121.5DRYL
2022-02-22 15:00:02FORECAST2022146-13824.694.5614.625127.003797888750.00090.03092.552.5809FF-7.3186.6954397.2724818412350.4551139905260.13054185664129161111121.5DRYL
2022-02-22 11:00:02FORECAST2022146-13824.674.5614.615127.114358839040.00080.03082.552.5808FF-7.3386.6754397.3288151163850.5061975817920.1300334646664161111121.5DRYL
2022-02-22 07:00:06FORECAST2022146-13824.624.6214.62126.9590897860.00020.04022.552.5902FF-7.3886.6254397.2496975713150.4344600214180.12876846796708161111121.5DRYL
2022-02-22 03:00:05FORECAST2022146-13824.734.1714.45127.020606563750.00020.04022.552.5902FF-7.2785.7354397.2810472565650.4628795988110.13156274758112161111121.5DRYL
2022-02-21 23:00:02FORECAST2022146-13824.54.0314.265121.14069506410.00020.17022.552.7202FF-7.595.554394.2623219885647.7612117232820.12576728485554161112123DRYL
2022-02-21 19:00:01FORECAST2022146-13824.413.9314.17121.181863013670.00030.17032.552.7203FF-7.5995.4154394.2836145732747.7800229697550.1235485601359161112123DRYL
2022-02-21 15:00:02FORECAST2022146-13824.373.7814.075121.1824245686700.172.552.72FF-7.6395.3754394.2839050012447.7802795764540.12257128491842161112123DRYL
2022-02-21 11:00:03FORECAST2022146-13824.423.9114.165121.9206434951300.172.552.72FF-7.5895.4254394.6653429447548.1178525770480.12379372668982161112123DRYL
2022-02-21 07:00:07FORECAST2022146-13824.274.314.285122.2586257186100.242.552.79FF-7.7394.2754394.8397399175848.2725639814150.12015179154767161112123DRYL
2022-02-21 03:00:03FORECAST2022146-13823.994.1914.09123.024694116150.00070.36072.552.9107FF-8.0190.9954395.2344731963648.6236001691410.11355632632809161112123DRYL
2022-02-20 23:00:03FORECAST2022146-13823.844.2914.065112.34926853870.00090.44092.052.4909FF-8.1694.8454389.6638962925143.7784537244020.11013082311005161112123DRYL
2022-02-20 19:00:03FORECAST2022146-13824.454.414.425112.668779155860.00080.48082.052.5308FF-7.5595.4554389.8328231972143.9219882645120.12453126282722161112123DRYL
2022-02-20 15:00:03FORECAST2022146-13824.014.5214.265112.424024480240.0010.4412.052.491FF-7.9995.0154389.7034324292643.812028227460.11401871994639161112123DRYL
2022-02-20 11:00:03FORECAST2022146-13821.873.112.485114.569332254220.00150.51152.052.5615FF-10.1391.8754390.8348272143444.7776851756390.071816301711761161113124.5DRYL
2022-02-20 07:00:06FORECAST2022146-13819.614.1611.885115.420931887840.00240.56242.112.6724FF-12.3990.6154391.2822381790445.1621605617860.041447746753737161113124.5DRYL
2022-02-20 03:00:08FORECAST2022146-13824.551.5913.07115.952371112340.00160.54162.292.8316FF-7.4594.5554391.5609541726445.402421071330.12701181291431161113124.5DRYL
2022-02-19 23:00:02FORECAST2022146-13824.025.1614.59117.190071944040.01050.45052.623.0705FF-7.9895.0254392.2086160543645.9629559324820.11425041751945161112123DRYL
2022-02-19 19:00:02FORECAST2022146-13823.713.6513.68117.679196244360.01130.54132.643.1813FF-8.2995.7154392.4640033598246.1848484702290.10722236121985161113124.5DRYL
2022-02-19 15:00:02FORECAST2022146-13824.55.9115.205117.975960508660.01640.52642.713.2364FF-7.598.554392.6187988100446.319579903370.12576728485554161113124.5DRYL
2022-02-19 11:00:02FORECAST2022146-13824.586.5915.585119.95918567490.03080.50082.663.1608FF-7.4295.5854393.6502805047547.2219670900430.12776261828895161113124.5DRYL
2022-02-19 07:00:05FORECAST2022146-13820.46.6313.515120.277184154260.03640.50642.573.0764FF-11.689.454393.8151896904147.366982093140.050596543207248161113124.5DRYL
2022-02-19 03:00:06FORECAST2022146-13825.086.7315.905119.765750631930.04170.47172.52.9717FF-6.92101.0854393.5499028524447.1337995262460.1407299262479161112123DRYL
2022-02-18 23:00:02FORECAST2022146-13825.633.2714.45120.385421645250.00260.47262.482.9526FF-6.3798.6354393.8712896331247.416361276440.15599043257099161112123DRYL
2022-02-18 19:00:04FORECAST2022146-13825.926.7716.345122.159547342850.00220.56222.583.1422FF-6.0899.9254394.788631529848.2272005237840.16445934505929161113124.5DRYL
2022-02-18 15:00:02FORECAST2022146-13825.968.2117.085122.97601639720.00250.62252.643.2625FF-6.04101.9654395.2094137964948.6012793513640.16565037532044161113124.5DRYL
2022-02-18 11:00:03FORECAST2022146-13829.4812.2420.86122.254853092080.00380.55382.593.1438FF-2.52103.4854394.8377940891348.2708365115670.29132545938949162113126DRYL
2022-02-18 07:00:09FORECAST2022146-13829.5212.7121.115121.782960665650.00380.55382.563.1138FF-2.4898.5254394.59425643248.0548568099480.29297217082867162113126DRYL
2022-02-18 03:00:06FORECAST2022146-13830.0412.1121.075120.413858845340.00120.38122.452.8312FF-1.96109.0454393.8860261942747.429336359310.31476086983227162112124DRYL
2022-02-17 23:00:03FORECAST2022146-13830.4810.7820.63121.3135099785400.292.432.72FF-1.52115.4854394.3516891081647.8401875716760.33371895805919162112124DRYL
2022-02-17 19:00:02FORECAST2022146-13832.0211.9221.97121.956531146960.00230.28232.632.9123FF0.020000000000003118.0254394.6838678815348.1342754264970.40318727882946162112124DRYL
2022-02-17 15:00:03FORECAST2022146-13832.0513.6222.835121.57814541220.00230.22232.612.8323FF0.049999999999997118.0554394.488463017747.9611757202020.40457976661131162112124DRYL
2022-02-17 11:00:03FORECAST2022146-13827.718.7418.225121.1722614351500.222.532.75FF-4.29109.7154394.2786487143947.7756355003170.22312706501077161112123DRYL
2022-02-17 07:00:08FORECAST2022146-13827.758.8518.3119.5321584894800.142.372.51FF-4.25103.7554393.4286210507147.027372285730.22456096365101161112123DRYL
2022-02-17 03:00:08FORECAST2022146-13829.3112.0420.675121.48713257560.04060.19062.612.8006FF-2.69112.3154394.4414344071747.9195588351330.28437553408568162112124DRYL
2022-02-16 23:00:03FORECAST2022146-13831.8317.2124.52119.027505440910.16020.37022.492.8602FF-0.17129.8354393.166357753646.79761078670.39439736115187162112124DRYL
2022-02-16 19:00:04FORECAST2022146-13834.5821.3727.975119.649770729110.23760.35762.522.8776FF2.58133.5854393.4896947033647.0809517555260.52459643809073163112125DRYL
2022-02-16 15:00:04FORECAST2022146-13834.5121.1327.82117.454851040640.17960.26962.212.4796FF2.51134.5154392.34690500546.0830472836190.52125523682013163112125DRYL
2022-02-16 11:00:02FORECAST2022146-13827.0120.4223.715116.607365827630.00140.24142.12.3414FF-4.99124.0154391.9039522736845.698887532070.19888964987264161112123DRYL
2022-02-16 07:00:05FORECAST2022146-13823.1421.0222.08114.631540531420.00030.13031.851.9803FF-8.86122.1454390.8675427954744.8057485743760.095121199828919161112123DRYL
2022-02-16 03:00:05FORECAST2022146-13823.3821.9422.66114.371185909060.00030.13031.821.9503FF-8.62126.3854390.7305867985944.6883205830970.10008824814883161112123DRYL