Alert archive / Idaho / Wind Advisories in 2021
Wind Advisory 8, NWS Boise, ID
NWS Boise, ID issued this wind advisory at Apr 9, 2021, 1:49 PM MDT for 7 counties in Idaho. It took effect at Apr 10, 2021, 1:00 PM MDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 9, 2021, 1:49 PM MDT (19:49 UTC)
- In effect from
- Apr 10, 2021, 1:00 PM MDT
- Expired
- Apr 10, 2021, 9:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Boise, ID
Counties Ada County, ID, Camas County, ID, Elmore County, ID, Gooding County, ID, Jerome County, ID, Owyhee County, ID, Twin Falls County, ID
The radar
The Boise radar (KCBX), 101 km from the middle of the area, began a volume at 19:49 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, 7.8 hours before the alert went out and 104 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
- 2174 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
404 WWUS75 KBOI 091949 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 149 PM MDT Fri Apr 9 2021 IDZ014-016-100400- /O.NEW.KBOI.WI.Y.0008.210410T1900Z-210411T0300Z/ Upper Treasure Valley-Western Magic Valley- 149 PM MDT Fri Apr 9 2021 ...WIND ADVISORY IN EFFECT FROM 1 PM TO 9 PM MDT SATURDAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Upper Treasure Valley southeast of Boise and the Western Magic Valley. * WHEN...From 1 PM to 9 PM MDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
4 follow-up statements
512 WWUS75 KBOI 100247 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 847 PM MDT Fri Apr 9 2021 IDZ014-016-101300- /O.CON.KBOI.WI.Y.0008.210410T1900Z-210411T0300Z/ Upper Treasure Valley-Western Magic Valley- 847 PM MDT Fri Apr 9 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM TO 9 PM MDT SATURDAY... * WHAT...Northwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Upper Treasure Valley southeast of Boise and the Western Magic Valley. * WHEN...From 1 PM to 9 PM MDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
354 WWUS75 KBOI 100740 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 140 AM MDT Sat Apr 10 2021 IDZ028-102030- /O.EXA.KBOI.WI.Y.0008.210410T1900Z-210411T0300Z/ Camas Prairie- 140 AM MDT Sat Apr 10 2021 ...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Camas Prairie. * WHEN...From 1 PM to 9 PM MDT Saturday. * IMPACTS...Gusty winds could blow unsecured objects around. Tree limbs could be blown down. Travel may be difficult for high- profile vehicles on north-south roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IDZ014-016-102030- /O.CON.KBOI.WI.Y.0008.210410T1900Z-210411T0300Z/ Upper Treasure Valley-Western Magic Valley- 140 AM MDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM MDT THIS EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Upper Treasure Valley southeast of Boise and the Western Magic Valley. * WHEN...From 1 PM to 9 PM MDT Saturday. * IMPACTS...Gusty winds could blow unsecured objects around. Tree limbs could be blown down. Travel may be difficult for high- profile vehicles on north-south roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
564 WWUS75 KBOI 102006 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 206 PM MDT Sat Apr 10 2021 IDZ014-016-028-110300- /O.CON.KBOI.WI.Y.0008.000000T0000Z-210411T0300Z/ Upper Treasure Valley-Western Magic Valley-Camas Prairie- 206 PM MDT Sat Apr 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Upper Treasure Valley southeast of Boise, Western Magic Valley, and Camas Prairie. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Gusty winds could blow unsecured objects around. Tree limbs could be blown down. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
029 WWUS75 KBOI 110251 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 851 PM MDT Sat Apr 10 2021 IDZ014-016-028-110400- /O.EXP.KBOI.WI.Y.0008.000000T0000Z-210411T0300Z/ Upper Treasure Valley-Western Magic Valley-Camas Prairie- 851 PM MDT Sat Apr 10 2021 ...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... Winds have dropped below Advisory criteria but will remain gusty into Sunday morning. $$
Nearby
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.