Alert archive / Arizona / Wind Advisories in 2021
Wind Advisory 16, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this wind advisory at Apr 23, 2021, 1:37 PM MST for 4 counties in Arizona. It took effect at Apr 24, 2021, 11:00 AM MST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 23, 2021, 1:37 PM MST (20:37 UTC)
- In effect from
- Apr 24, 2021, 11:00 AM MST
- Expired
- Apr 24, 2021, 7:00 PM MST
- In force
- 8 hr
- Issued by
- NWS Flagstaff, AZ
Counties Apache County, AZ, Coconino County, AZ, Navajo County, AZ, Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 83 km from the middle of the area, began a volume at 20:39 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, 8.6 hours before the alert went out and 70 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
- 59 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1007 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 190 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
537 WWUS75 KFGZ 232037 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 137 PM MST Fri Apr 23 2021 AZZ004-006>008-012-015-039-040-241200- /O.NEW.KFGZ.WI.Y.0016.210424T1800Z-210425T0200Z/ Kaibab Plateau-Grand Canyon Country-Coconino Plateau- Yavapai County Mountains- Little Colorado River Valley in Coconino 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, Prescott, Seligman, Ash Fork, Wupatki N.M., Tuba City, Flagstaff, Williams, Munds Park, Navajo N.M., Dilkon, and Kykotsmovi 137 PM MST Fri Apr 23 2021 ...WIND ADVISORY IN EFFECT SATURDAY FROM 11 AM TO 7 PM MST (12 PM - 8 PM NAVAJO NATION)... * WHAT...Southwest winds 15 - 25 mph with gusts of 35 - 45 mph expected. * WHERE...Mainly northwestern and north-central Arizona, including parts of western Navajo Nation. * WHEN...Saturday from 11 AM to 7 PM MST (12 PM - 8 PM Navajo Nation). * IMPACTS...Gusty winds could blow around unsecured objects and can make driving difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Possibility for localized blowing dust near Cameron and Tuba City. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/flagstaff
3 follow-up statements
887 WWUS75 KFGZ 241548 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 848 AM MST Sat Apr 24 2021 AZZ004-006>008-012-015-039-040-250200- /O.CON.KFGZ.WI.Y.0016.210424T1800Z-210425T0200Z/ Kaibab Plateau-Grand Canyon Country-Coconino Plateau- Yavapai County Mountains- Little Colorado River Valley in Coconino County- Western Mogollon Rim-Black Mesa Area- Northeast Plateaus and Mesas South of Hwy 264- Including the cities of Jacob Lake, Fredonia, Grand Canyon Village, Supai, North Rim, Valle, Prescott, Seligman, Ash Fork, Wupatki N.M., Tuba City, Flagstaff, Williams, Munds Park, Navajo N.M., Dilkon, and Kykotsmovi 848 AM MST Sat Apr 24 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... * WHAT...Southwest winds 20 to 25 mph with gusts up to 45 mph expected. * WHERE...Mainly northwestern and north-central Arizona, including parts of western Navajo Nation. * WHEN...Until 7 PM MST this evening. * IMPACTS...Gusty winds could blow around unsecured objects and can make driving difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Possibility for localized blowing dust near Cameron and Tuba City. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/flagstaff
185 WWUS75 KFGZ 242032 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 132 PM MST Sat Apr 24 2021 AZZ004-006>008-012-015-039-040-250700- /O.NEW.KFGZ.WI.Y.0017.210425T1800Z-210426T0300Z/ /O.CON.KFGZ.WI.Y.0016.000000T0000Z-210425T0200Z/ Kaibab Plateau-Grand Canyon Country-Coconino Plateau- Yavapai County Mountains- Little Colorado River Valley in Coconino 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, Prescott, Seligman, Ash Fork, Wupatki N.M., Tuba City, Flagstaff, Williams, Munds Park, Navajo N.M., Dilkon, and Kykotsmovi 132 PM MST Sat Apr 24 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING... ...WIND ADVISORY IN EFFECT FROM 11 AM TO 8 PM MST SUNDAY... * WHAT...For the first Wind Advisory, southwest winds 20 to 25 mph with gusts up to 45 mph. For the second Wind Advisory, southwest winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Northwestern and north central Arizona including portions of Navajo Nation. * WHEN...For the first Wind Advisory, until 7 PM MST this evening. For the second Wind Advisory, from 11 AM to 8 PM MST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. In addition, winds this strong can make driving difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Possibility for localized areas of reduced visibility due to blowing dust near Cameron and Tuba City. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ AZZ005-009>011-013-014-016-017-038-250700- /O.NEW.KFGZ.WI.Y.0017.210425T1800Z-210426T0300Z/ Marble and Glen Canyons- Northeast Plateaus and Mesas Hwy 264 Northward-Chinle Valley- Chuska Mountains and Defiance Plateau- Little Colorado River Valley in Navajo County- Little Colorado River Valley in Apache County- Eastern Mogollon Rim-White Mountains- Oak Creek and Sycamore Canyons- Including the cities of Page, Lees Ferry, Keams Canyon, Kaibito, Canyon De Chelly, Chinle, Kayenta, Window Rock, Ganado, Winslow, Holbrook, Snowflake, St. Johns, Springerville, Heber, Happy Jack, Forest Lakes, Show Low, Greer, Pinetop, and Sedona 132 PM MST Sat Apr 24 2021 ...WIND ADVISORY IN EFFECT FROM 11 AM TO 8 PM MST SUNDAY... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of Coconino, Apache, and Navajo Counties. * WHEN...From 11 AM to 8 PM MST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. In addition, winds this strong can make driving difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Possibility of localized areas of reduced visibility due to blowing dust from the Little Colorado River valley northeastward. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Stay alert for reduced visibility in blowing dust. && $$ For more information from the National Weather Service visit https://weather.gov/flagstaff
531 WWUS75 KFGZ 250154 NPWFGZ URGENT - WEATHER MESSAGE National Weather Service Flagstaff AZ 654 PM MST Sat Apr 24 2021 AZZ004-006>008-012-015-039-040-251800- /O.EXP.KFGZ.WI.Y.0016.000000T0000Z-210425T0200Z/ /O.CON.KFGZ.WI.Y.0017.210425T1800Z-210426T0300Z/ Kaibab Plateau-Grand Canyon Country-Coconino Plateau- Yavapai County Mountains- Little Colorado River Valley in Coconino 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, Prescott, Seligman, Ash Fork, Wupatki N.M., Tuba City, Flagstaff, Williams, Munds Park, Navajo N.M., Dilkon, and Kykotsmovi 654 PM MST Sat Apr 24 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM MST SUNDAY... ...WIND ADVISORY WILL EXPIRE AT 7 PM MST THIS EVENING... * WHAT...Winds will largely decrease tonight but remain breezy, especially northeast of high terrain features. Southwest winds will increase again Sunday becoming 20 to 30 mph with gusts up to 50 mph. * WHERE...Northwestern and north central Arizona including portions of Navajo Nation. * WHEN...From 11 AM to 8 PM MST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. In addition, winds this strong can make driving difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Possibility of localized areas of reduced visibility due to blowing dust from the Little Colorado River valley northeastward. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ AZZ005-009>011-013-014-016-017-038-251800- /O.CON.KFGZ.WI.Y.0017.210425T1800Z-210426T0300Z/ Marble and Glen Canyons- Northeast Plateaus and Mesas Hwy 264 Northward-Chinle Valley- Chuska Mountains and Defiance Plateau- Little Colorado River Valley in Navajo County- Little Colorado River Valley in Apache County- Eastern Mogollon Rim-White Mountains- Oak Creek and Sycamore Canyons- Including the cities of Page, Lees Ferry, Keams Canyon, Kaibito, Canyon De Chelly, Chinle, Kayenta, Window Rock, Ganado, Winslow, Holbrook, Snowflake, St. Johns, Springerville, Heber, Happy Jack, Forest Lakes, Show Low, Greer, Pinetop, and Sedona 654 PM MST Sat Apr 24 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM MST SUNDAY... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Portions of Coconino, Apache, and Navajo Counties. * WHEN...From 11 AM to 8 PM MST Sunday. * IMPACTS...Gusty winds could blow around unsecured objects. In addition, winds this strong can make driving difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Possibility of localized areas of reduced visibility due to blowing dust from the Little Colorado River valley northeastward. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from the National Weather Service visit https://weather.gov/flagstaff
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 2:49 AM MST | Fire Weather Watch | FGZ | Apache, Coconino, Navajo, Yavapai | 24 hr |
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.