Alert archive / Arizona / Wind Advisories in 2021
Wind Advisory 24, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this wind advisory at Oct 17, 2021, 1:22 PM MST for Apache County, Coconino County, Navajo County, Arizona. It took effect at Oct 18, 2021, 11:00 AM MST. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Oct 17, 2021, 1:22 PM MST (20:22 UTC)
- In effect from
- Oct 18, 2021, 11:00 AM MST
- Expired
- Oct 18, 2021, 5:00 PM MST
- In force
- 6 hr
- Issued by
- NWS Flagstaff, AZ
Counties Apache County, AZ, Coconino County, AZ, Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 20:24 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.4 hours before the alert went out and 121 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
- 1904 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 188 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
487 WWUS75 KFGZ 172022 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 122 PM MST Sun Oct 17 2021 AZZ004-006-007-009>015-039-040-180430- /O.NEW.KFGZ.WI.Y.0024.211018T1800Z-211019T0000Z/ Kaibab Plateau-Grand Canyon Country-Coconino Plateau- Northeast Plateaus and Mesas Hwy 264 Northward-Chinle Valley- Chuska Mountains and Defiance Plateau- Little Colorado River Valley in Coconino County- Little Colorado River Valley in Navajo County- Little Colorado River Valley in Apache County- Western Mogollon Rim-Black Mesa Area- Northeast Plateaus and Mesas South of Hwy 264- Including the cities of Jacob Lake, Fredonia, Grand Canyon Village, Supai, North Rim, Valle, Keams Canyon, Kaibito, Canyon De Chelly, Chinle, Kayenta, Window Rock, Ganado, Wupatki N.M., Tuba City, Winslow, Holbrook, Snowflake, St. Johns, Springerville, Flagstaff, Williams, Munds Park, Navajo N.M., Dilkon, and Kykotsmovi 122 PM MST Sun Oct 17 2021 ...WIND ADVISORY IN EFFECT FROM 11 AM TO 5 PM MST MONDAY... * WHAT...Southwest winds 20 to 25 MPH with gusts up to 50 MPH expected. * WHERE...Along and north of Interstate 40 including The Little Colorado River Valley. * WHEN...From 11 AM to 5 PM MST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. In addition, winds this strong can make driving difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/flagstaff
2 follow-up statements
436 WWUS75 KFGZ 180337 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 837 PM MST Sun Oct 17 2021 AZZ004-006-007-009>015-039-040-190000- /O.CON.KFGZ.WI.Y.0024.211018T1800Z-211019T0000Z/ Kaibab Plateau-Grand Canyon Country-Coconino Plateau- Northeast Plateaus and Mesas Hwy 264 Northward-Chinle Valley- Chuska Mountains and Defiance Plateau- Little Colorado River Valley in Coconino County- Little Colorado River Valley in Navajo County- Little Colorado River Valley in Apache County- Western Mogollon Rim-Black Mesa Area- Northeast Plateaus and Mesas South of Hwy 264- Including the cities of Jacob Lake, Fredonia, Grand Canyon Village, Supai, North Rim, Valle, Keams Canyon, Kaibito, Canyon De Chelly, Chinle, Kayenta, Window Rock, Ganado, Wupatki N.M., Tuba City, Winslow, Holbrook, Snowflake, St. Johns, Springerville, Flagstaff, Williams, Munds Park, Navajo N.M., Dilkon, and Kykotsmovi 837 PM MST Sun Oct 17 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM TO 5 PM MST MONDAY... * WHAT...Southwest winds 20 to 25 MPH with gusts up to 50 MPH expected. * WHERE...Along and north of Interstate 40 including The Little Colorado River Valley. * WHEN...From 11 AM to 5 PM MST Monday. * IMPACTS...Gusty winds could blow around unsecured objects as well as cause areas of blowing dust. In addition, winds this strong can make driving difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/flagstaff
769 WWUS75 KFGZ 182358 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 458 PM MST Mon Oct 18 2021 AZZ004-006-007-009>015-039-040-190100- /O.EXP.KFGZ.WI.Y.0024.000000T0000Z-211019T0000Z/ Kaibab Plateau-Grand Canyon Country-Coconino Plateau- Northeast Plateaus and Mesas Hwy 264 Northward-Chinle Valley- Chuska Mountains and Defiance Plateau- Little Colorado River Valley in Coconino County- Little Colorado River Valley in Navajo County- Little Colorado River Valley in Apache County- Western Mogollon Rim-Black Mesa Area- Northeast Plateaus and Mesas South of Hwy 264- Including the cities of Jacob Lake, Fredonia, Grand Canyon Village, Supai, North Rim, Valle, Keams Canyon, Kaibito, Canyon De Chelly, Chinle, Kayenta, Window Rock, Ganado, Wupatki N.M., Tuba City, Winslow, Holbrook, Snowflake, St. Johns, Springerville, Flagstaff, Williams, Munds Park, Navajo N.M., Dilkon, and Kykotsmovi 458 PM MST Mon Oct 18 2021 ...WIND ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... The strong southwest winds earlier in the day have decreased in intensity this afternoon with most locations below advisory criteria. This is why we are letting the Wind Advisory expire on time. Expect the breezy to gusty winds to continue decreasing into the evening hours with much lighter winds anticipated overnight into Tuesday. $$ For more information from the National Weather Service visit https://weather.gov/flagstaff
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.