Alert archive / Idaho / Wind Advisories in 2021
Wind Advisory 10, NWS Boise, ID
NWS Boise, ID issued this wind advisory at Apr 19, 2021, 2:34 AM MDT for 10 counties in Idaho; Malheur County, Oregon. It took effect at Apr 19, 2021, 11:03 AM MDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 19, 2021, 2:34 AM MDT (08:34 UTC)
- In effect from
- Apr 19, 2021, 11:03 AM MDT
- Expired
- Apr 19, 2021, 6:00 PM MDT
- In force
- 7 hr
- 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, Malheur County, OR
The radar
The Boise radar (KCBX), 26 km from the middle of the area, began a volume at 08:38 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 00:00Z, 8.6 hours before the alert went out and 31 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
- 3543 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
762 WWUS75 KBOI 190834 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 234 AM MDT Mon Apr 19 2021 IDZ014>016-029-030-191645- /O.NEW.KBOI.WI.Y.0010.210419T1800Z-210420T0000Z/ Upper Treasure Valley-Southwest Highlands-Western Magic Valley- Owyhee Mountains-Southern Twin Falls County- 234 AM MDT Mon Apr 19 2021 ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM MDT THIS EVENING... * WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of south central and southwest Idaho. * WHEN...From noon today to 6 PM MDT this evening. * 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. && $$
3 follow-up statements
795 WWUS75 KBOI 191703 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 1103 AM MDT Mon Apr 19 2021 IDZ014>016-029-030-200000- /O.EXT.KBOI.WI.Y.0010.210419T1703Z-210420T0000Z/ Upper Treasure Valley-Southwest Highlands-Western Magic Valley- Owyhee Mountains-Southern Twin Falls County- 1103 AM MDT Mon Apr 19 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Northwest winds 20 to 35 mph with gusts up to 55 mph expected. * WHERE...Portions of south central and southwest Idaho. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
054 WWUS75 KBOI 191753 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 1153 AM MDT Mon Apr 19 2021 IDZ012-ORZ064-200000- /O.EXA.KBOI.WI.Y.0010.000000T0000Z-210420T0000Z/ Lower Treasure Valley ID-Oregon Lower Treasure Valley- 1153 AM MDT Mon Apr 19 2021 /1053 AM PDT Mon Apr 19 2021/ ...WIND ADVISORY IN EFFECT UNTIL 6 PM MDT /5 PM PDT/ THIS EVENING... * WHAT...Northwest winds 20 to 35 mph with gusts up to 55 mph expected. * WHERE...In Oregon, Oregon Lower Treasure Valley. In Idaho, Lower Treasure Valley ID. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Localized blowing dust is causing reduced visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ IDZ014>016-029-030-200000- /O.CON.KBOI.WI.Y.0010.000000T0000Z-210420T0000Z/ Upper Treasure Valley-Southwest Highlands-Western Magic Valley- Owyhee Mountains-Southern Twin Falls County- 1153 AM MDT Mon Apr 19 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * WHAT...Northwest winds 20 to 35 mph with gusts up to 55 mph expected. * WHERE...Portions of south central and southwest Idaho. * WHEN...Until 6 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Localized blowing dust is causing reduced visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
596 WWUS75 KBOI 192337 NPWBOI URGENT - WEATHER MESSAGE National Weather Service Boise ID 537 PM MDT Mon Apr 19 2021 IDZ012-014>016-029-030-ORZ064-200045- /O.EXP.KBOI.WI.Y.0010.000000T0000Z-210420T0000Z/ Lower Treasure Valley ID-Upper Treasure Valley- Southwest Highlands-Western Magic Valley-Owyhee Mountains- Southern Twin Falls County-Oregon Lower Treasure Valley- 537 PM MDT Mon Apr 19 2021 /437 PM PDT Mon Apr 19 2021/ ...WIND ADVISORY WILL EXPIRE AT 6 PM MDT /5 PM PDT/ THIS EVENING... At 530 PM MDT west/northwest winds were slowly decreasing below advisory criteria. Wind speeds will continue to decrease through the evening. $$
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.