Alert archive / Idaho / Wind Advisories in 2021
Wind Advisory 4, NWS Boise, ID
NWS Boise, ID issued this wind advisory at Mar 27, 2021, 2:18 PM MDT for 10 counties in Idaho; Harney County, Malheur County, Oregon. It took effect at Mar 28, 2021, 6:00 PM MDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Mar 27, 2021, 2:18 PM MDT (20:18 UTC)
- In effect from
- Mar 28, 2021, 6:00 PM MDT
- Expired
- Mar 28, 2021, 2:44 AM MDT
- In force
- Issued by
- NWS Boise, ID
Counties Ada County, ID, Canyon County, ID, Elmore County, ID, Gem County, ID, Gooding County, ID, Jerome County, ID, Owyhee County, ID, Payette County, ID, Twin Falls County, ID, Washington County, ID, Harney County, OR, Malheur County, OR
The radar
The Boise radar (KCBX), 19 km from the middle of the area, began a volume at 20:18 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 8.3 hours before the alert went out and 28 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1512 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
769 WWUS75 KBOI 272018 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 218 PM MDT Sat Mar 27 2021 ORZ061-063-281300- /O.NEW.KBOI.WI.Y.0004.210329T0000Z-210329T0700Z/ Harney County-Malheur County- 218 PM MDT Sat Mar 27 2021 /118 PM PDT Sat Mar 27 2021/ ...WIND ADVISORY IN EFFECT FROM 6 PM MDT /5 PM PDT/ SUNDAY TO 1 AM MDT /MIDNIGHT PDT/ MONDAY... * WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Harney County and Malheur County. * WHEN...From 6 PM MDT /5 PM PDT/ Sunday to 1 AM MDT /midnight PDT/ Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IDZ012-014-015-029-ORZ064-281300- /O.NEW.KBOI.WI.Y.0004.210329T0700Z-210329T1200Z/ Lower Treasure Valley ID-Upper Treasure Valley- Southwest Highlands-Owyhee Mountains-Oregon Lower Treasure Valley- 218 PM MDT Sat Mar 27 2021 /118 PM PDT Sat Mar 27 2021/ ...WIND ADVISORY IN EFFECT FROM 1 AM MDT /MIDNIGHT PDT/ TO 6 AM MDT /5 AM PDT/ MONDAY... * WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Portions of southeast Oregon and southwest Idaho. * WHEN...From 1 AM MDT /midnight PDT/ to 6 AM MDT /5 AM PDT/ Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IDZ016-030-281300- /O.NEW.KBOI.WI.Y.0004.210329T1200Z-210329T2100Z/ Western Magic Valley-Southern Twin Falls County- 218 PM MDT Sat Mar 27 2021 ...WIND ADVISORY IN EFFECT FROM 6 AM TO 3 PM MDT MONDAY... * WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Western Magic Valley and Southern Twin Falls County. * WHEN...From 6 AM to 3 PM MDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
1 follow-up statement
053 WWUS75 KBOI 280844 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 244 AM MDT Sun Mar 28 2021 ORZ061-063-282100- /O.UPG.KBOI.WI.Y.0004.210329T0000Z-210329T0700Z/ /O.NEW.KBOI.HW.W.0002.210328T2100Z-210329T1200Z/ Harney County-Malheur County- 244 AM MDT Sun Mar 28 2021 /144 AM PDT Sun Mar 28 2021/ ...HIGH WIND WARNING IN EFFECT FROM 3 PM MDT /2 PM PDT/ THIS AFTERNOON TO 6 AM MDT /5 AM PDT/ MONDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Harney County and Malheur County. * WHEN...From 3 PM MDT /2 PM PDT/ this afternoon to 6 AM MDT /5 AM PDT/ Monday. * IMPACTS...Damaging winds may blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Prefrontal winds will strengthen this afternoon. A strong cold front will move through this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ IDZ014-282100- /O.UPG.KBOI.WI.Y.0004.210329T0700Z-210329T1200Z/ /O.NEW.KBOI.HW.W.0002.210329T0600Z-210330T0300Z/ Upper Treasure Valley- 244 AM MDT Sun Mar 28 2021 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM MDT MONDAY... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Upper Treasure Valley. * WHEN...From midnight tonight to 9 PM MDT Monday. * IMPACTS...Damaging winds may blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A strong cold front will move through tonight around midnight, bringing a brief period of very strong winds. From around mid-morning Monday until Monday evening, winds will still be strong, but not as strong as with the front. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ IDZ012-015-ORZ064-282100- /O.UPG.KBOI.WI.Y.0004.210329T0700Z-210329T1200Z/ /O.NEW.KBOI.HW.W.0002.210329T0600Z-210329T1200Z/ Lower Treasure Valley ID-Southwest Highlands- Oregon Lower Treasure Valley- 244 AM MDT Sun Mar 28 2021 /144 AM PDT Sun Mar 28 2021/ ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT MDT /11 PM PDT/ TONIGHT TO 6 AM MDT /5 AM PDT/ MONDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...In Oregon, Oregon Lower Treasure Valley. In Idaho, Lower Treasure Valley ID and Southwest Highlands. * WHEN...From midnight MDT /11 PM PDT/ tonight to 6 AM MDT /5 AM PDT/ Monday. * IMPACTS...Damaging winds may blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A strong cold front will move through around midnight tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ IDZ029-282100- /O.UPG.KBOI.WI.Y.0004.210329T0700Z-210329T1200Z/ /O.NEW.KBOI.HW.W.0002.210328T2100Z-210329T1200Z/ Owyhee Mountains- 244 AM MDT Sun Mar 28 2021 ...HIGH WIND WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 6 AM MDT MONDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Owyhee Mountains. * WHEN...From 3 PM this afternoon to 6 AM MDT Monday. * IMPACTS...Damaging winds may blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Prefrontal winds this afternoon will become strong, and the cold front is expected to pass through around midnight. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ IDZ016-030-282100- /O.UPG.KBOI.WI.Y.0004.210329T1200Z-210329T2100Z/ /O.NEW.KBOI.HW.W.0002.210329T0600Z-210330T0300Z/ Western Magic Valley-Southern Twin Falls County- 244 AM MDT Sun Mar 28 2021 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM MDT MONDAY... * WHAT...West winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Western Magic Valley and Southern Twin Falls County. * WHEN...From midnight tonight to 9 PM MDT Monday. * IMPACTS...Damaging winds may blow down trees and power lines. Power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A strong cold front will move through around 3 am MDT Monday, bringing a period of strong winds. After mid-morning, winds will be weaker than overnight, but still strong enough to cause travelling issues, so the warning will extend all the way until winds weaken enough to not cause a threat. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ ORZ062-282100- /O.NEW.KBOI.WI.Y.0005.210328T2100Z-210329T1200Z/ Baker County- 144 AM PDT Sun Mar 28 2021 ...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 AM PDT MONDAY... * WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Baker County. * WHEN...From 2 PM this afternoon to 5 AM PDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Prefrontal winds will increase this afternoon. The strongest winds will start around 9 pm PDT as a potent cold front arrives. Winds will gradually weaken toward daybreak. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IDZ011-013-028-033-282100- /O.NEW.KBOI.WI.Y.0005.210329T0600Z-210329T1200Z/ West Central Mountains-Boise Mountains-Camas Prairie- Upper Weiser River- 244 AM MDT Sun Mar 28 2021 ...WIND ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT MONDAY... * WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of southwest and west central Idaho. * WHEN...From midnight tonight to 6 AM MDT Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...A strong cold front will move through the area tonight. Northwest facing slopes, and areas where northwest winds become channeled, will see gusts even higher than 45 mph late tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
Nearby
Wind Advisories in Idaho, 2021Wind Advisories in Oregon, 2021Every wind advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.