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WYC003
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX NWS Forecast for: Basin WY Issued by: National Weather Service Riverton, WY Last Update: 10:43 am MST Feb 24, 2017 ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ Today: A 20 percent chance of snow. Mostly cloudy, with a high near 30. East northeast wind 3 to 7 mph. Tonight: Mostly cloudy, with a low around 13. Light and variable wind. Saturday: Partly sunny, with a high near 28. Calm wind becoming south southwest around 5 mph in the afternoon. Saturday Night: Partly cloudy, with a low around 7. South southwest wind around 5 mph becoming light and variable in the evening. Sunday: Sunny, with a high near 26. South wind 3 to 5 mph. Sunday Night: Partly cloudy, with a low around 9. South southeast wind 3 to 5 mph. Monday: Mostly sunny, with a high near 30. Calm wind becoming south southwest around 5 mph Monday Night: A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 11. Tuesday: A 20 percent chance of snow after 11am. Partly sunny, with a high near 30. Tuesday Night: Mostly cloudy, with a low around 11. Wednesday: Mostly sunny, with a high near 33. Wednesday Night: Partly cloudy, with a low around 14. Thursday: Partly sunny, with a high near 38. Basin WY 44.36N 108.05W (Elev. 3999 ft) Visit your local NWS office at: http://www.weather.gov/riw XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Hazardous Weather Outlook National Weather Service Riverton WY 1106 AM MST Fri Feb 24 2017 WYZ001>020-022>030-251815- Yellowstone National Park-Absaroka Mountains-Cody Foothills- North Big Horn Basin-Southwest Big Horn Basin- Southeast Big Horn Basin-Owl Creek and Bridger Mountains- Bighorn Mountains West-Bighorn Mountains Southeast- Northeast Johnson County-Southeast Johnson County- Teton and Gros Ventre Mountains-Jackson Hole- Wind River Mountains West-Wind River Mountains East- Upper Wind River Basin-Wind River Basin-Lander Foothills- Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain-Star Valley- Salt River and Wyoming Ranges-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- ...Flood Advisory now in effect for the Big Horn River between Manderson and Greybull through Saturday morning... ...Flood Advisory now in effect for the Blacks Fork near Little America and Granger through Saturday morning... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and Tonight Light snow will continue across the area. Additional accumulations will be low. Roads over portions of central and southern portions remain closed at times through today. Ice jam flooding continues across portions of the Big Horn Basin especially along the Big Horn River in Big Horn County. Ice jam flooding possible along portions of the Blacks Fork near Little America and Granger. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Saturday...Ice jam flooding continues across portions of the Big Horn Basin especially along the Big Horn River in Big Horn County. Ice jam flooding possible along portions of the Blacks Fork near Little America and Granger. Sunday night through Tuesday...Chance of snow across far western valleys and mountains .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report snowfall amounts. Thank you! $$ Flood Advisory 941 AM MST FRI FEB 24 2017 WYC003-251630- /O.NEW.KRIW.FA.Y.0012.170224T1641Z-170225T1630Z/ /00000.N.IJ.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Big Horn- The National Weather Service in Riverton has issued a * Hydrologic Advisory for... An Ice Jam in... Central Big Horn County in central Wyoming... * Until 930 AM MST Saturday * At 926 AM MST, Big Horn County emergency management reported there were still 2 large ice jams along the Big Horn River that may cause additional flooding. One ice jam was between Basin and Greybull. This ice jam has moved downstream about an half mile since Thursday night. The other major ice jam is located downstream of Greybull near the Sheep Mountain area and on Georgia Pacific property. No major movement or changes have been reported with that ice jam. * There are also 2 smaller ice jams that are just upstream and downstream of Greybull. These jams are not causing any significant flooding in and around Greybull. * Colder temperatures through early next week should inhibit any significant movement of current ice jams. There also should be no significant additional ice accumulation on the Big Horn River with the expected temperatures through early next week. PRECAUTIONARY/PREPAREDNESS ACTIONS... River ice is very unpredictable, and may move and jam with little notice. Any ice jam can cause flooding, as the ice dams the river, causing rapid increases in river levels in a short period of time. People living near the Big Horn River should monitor the situation closely and be ready to move to higher ground if flooding occurs. && LAT...LON 4457 10805 4450 10802 4442 10800 4442 10808 4448 10808 4453 10811 4457 10815 4463 10816 4471 10820 4477 10822 4475 10813 4469 10810 4463 10810 Fahey Hydrologic Outlook WYC003-250450- 950 AM MST THU FEB 23 2017 ...Colder temperatures through early next week will decrease flooding due to ice jams along the Big Horn River... High temperatures along the Big Horn River are expected to be into the upper 20s to lower 30s from Friday through Tuesday of next week. Low temperatures along the the Big Horn River are expected to be between 8 to 20 degrees from Friday through Tuesday of next week. Flooding from ice jamming expected to decrease through early next week with the expected colder temperatures. Also, no significant new ice is expected to form on the the Big Horn River with forecasted low temperatures next week. People who live next to the Big Horn River should still be vigilant of the possibility of flooding due to ice jams. Ice jams are very unpredictable and can occur very quickly with little or no notice. Move to higher ground if flooding is occurring due to ice jams. Graphical forecasts are available at: http://water.weather.gov/ahps2/index.php?wfo=riw Visit weather.gov/riverton and select the rivers & lakes tab for graphical forecasts and additional information. jtfahey

Record high temperature 124.7°F Record low temperature -29.9°F Record high gust 94 mph Record high average 69.5 mph Record daily rain 1.57 in. Record low windchill -50.6°F Record high barometer 33.428 in. Record low barometer 25.160 in.
Daily high pressure 29.929 in. Daily low pressure 29.870 in. Daily low windchill 17.2°F Daily high heat index 32.7°F Daily high gust speed 8.7 mph W Daily high average speed 6.7 mph WNW
CURRENT WEATHER AT BASIN, WYOMING 82410
LAST READING AT TIME: 2:30 PM DATE: February 24 2017, time of next update: 2:40 pm
Current WeatherDry Current Temperature 32.7°F (0.4°C), Apparent temp 27.6°F
Maximum Temperature (since midnight)32.7°F at: 2:27 PM Minimum Temperature (since midnight)20.3°F at: 5:27 AM
Average windspeed (ten minute)2.7 mph Wind Direction (ten minute)SSW (210°)
Windchill Temperature 30.0°F Maximum Gust (last hour) 7 mph at: 1:32 PM
Maximum Gust (since midnight) 9 mph at: 12:24 AM Maximum 1 minute average (since midnight)6.7 mph at: 12:29 AM
Rainfall (last hour)0.000 in. (0.0 mm) Rainfall (since midnight)0.039 in. (1.0 mm) at 11:21 AM
Rainfall This month 0.08 in. (2.0 mm) Rainfall To date this year 0.157 in. (4.0 mm)
Maximum rain per minute (last hour)0.000 in/min Maximum rain per hour (last 6 hours)0.039 in/hour
Yesterdays rainfall 0.000 in DewPoint 20.0°F (Wet Bulb :28.7°F )
Humidity 59 %, Humidex 26.4°F Barometer corrected to msl29.929 in. (1013.5 hPa)
Pressure change 0.00 in. (last hour) Trend (last hour)STEADY
Pressure change (last 12 hours)+0.06 in Pressure change (last 6 hours)+0.00 in
Current Indoor Temp. 74.3°F
Current Indoor hum. 18%


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Weather report/Warning/Metars

SOUTH BIG HORN COUNTY AIRPORT , WY, United States (KGEY) 44-31N 108-05W 1191M
Feb 24, 2017 - 03:53 PM EST / 2017.02.24 2053 UTC
Wind: from the S (180 degrees) at 6 MPH (5 KT):0
Visibility: 10 mile(s):0
Sky conditions: overcast
Precipitation last hour: A trace
Temperature: 28.9 F (-1.7 C)
Windchill: 23 F (-5 C):1
Dew Point: 21.0 F (-6.1 C)
Relative Humidity: 71%
Pressure (altimeter): 29.97 in. Hg (1014 hPa)
ob: KGEY 242053Z AUTO 18005KT 10SM SCT019 BKN026 OVC070 M02/M06 A2997 RMK AO2 SNB03B07E17 SLP189 P0000 60001 T10171061 
cycle: 21
Amundsen-Scott South Pole Station, Antarctica (NZSP) 90-00S 00-00E 2835M
Feb 24, 2017 - 03:50 PM EST / 2017.02.24 2050 UTC
Wind: from the E (100 degrees) at 13 MPH (11 KT):0
Visibility: greater than 7 mile(s):0
Sky conditions: mostly clear
Temperature: -45 F (-43 C)
Windchill: -76 F (-60 C):2
Pressure (altimeter): 28.6 in. Hg (968 hPa)
ob: NZSP 242050Z 10011KT 9999 FEW050 M43/ A2860 RMK CLN AIR 09009KT ALL WNDS GRID SDG/HDG
cycle: 21
Alert Airport, Canada (CYLT) 82-31N 062-17W
Feb 24, 2017 - 03:00 PM EST / 2017.02.24 2000 UTC
Wind: from the NNW (340 degrees) at 23 MPH (20 KT):0
Visibility: 3/4 mile(s):0
Sky conditions: overcast
Weather: light snow; mist
Temperature: -31 F (-35 C)
Windchill: -65 F (-54 C):2
Dew Point: -38 F (-39 C)
Relative Humidity: 66%
Pressure (altimeter): 29.86 in. Hg (1011 hPa)
ob: CYLT 242000Z 34020KT 3/4SM -SN BR OVC015 M35/M39 A2986 RMK SC8 LAST OBS/NEXT 271300 UTC SLP118
cycle: 20



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Created by "Weather Display" software version 10.37P at this start time/date 6:25:14 PM 11/24/2011
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The Weather Station, information and web page provided at www.basinweather.com is in memory of "Our Parents": CLIVE AND RUTH STOELK, of Basin, Wyoming and LEONARD AND LUCILLE HENDERSON, of Greybull, Wyoming. Thank you for looking. We hope you find this weather information helpful