Alert archive / Utah / Wind Advisories in 2021
Wind Advisory 24, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this wind advisory at May 21, 2021, 8:56 PM MDT for 4 counties in Utah. It took effect at May 22, 2021, 12:00 PM MDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- May 21, 2021, 8:56 PM MDT (02:56 UTC)
- In effect from
- May 22, 2021, 12:00 PM MDT
- Expired
- May 22, 2021, 6:09 PM MDT
- In force
- 6 hr
- Issued by
- NWS Salt Lake City, UT
Counties Garfield County, UT, Kane County, UT, San Juan County, UT, Wayne County, UT
The radar
The Cedar City radar (KICX), 164 km from the middle of the area, began a volume at 02:55 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
Grand Junction, CO (KGJT), launched 00:00Z, 2.9 hours before the alert went out and 266 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
- 4 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 2072 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 126 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
965 WWUS75 KSLC 220256 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 856 PM MDT Fri May 21 2021 UTZ130-131-221200- /O.EXP.KSLC.WI.Y.0023.000000T0000Z-210522T0300Z/ /O.NEW.KSLC.WI.Y.0024.210522T1800Z-210523T0300Z/ Western Canyonlands-Glen Canyon Recreation Area/Lake Powell- Including the cities of Hanksville, Big Water, and Bullfrog 856 PM MDT Fri May 21 2021 ...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MDT SATURDAY... ...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... * WHAT...South winds 25 to 35 mph expected. * WHERE...Western Canyonlands and Glen Canyon Recreation Area/Lake Powell. * WHEN...From noon to 9 PM MDT Saturday. * IMPACTS...Gusty winds will cause rough chop on Lake Powell. Small boats will be especially prone to capsizing. Winds may also blow around unsecured objects. A few power outages are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... The strong winds will create dangerous boating conditions on Lake Powell. These winds will create very choppy water and generate large waves which could capsize or swamp small craft. For your personal safety, operators of small craft are urged to postpone their outings until the winds subside. Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ UTZ113-117-125-220400- /O.EXP.KSLC.WI.Y.0023.000000T0000Z-210522T0300Z/ Wasatch Plateau/Book Cliffs-Central Mountains-Southern Mountains- Including the cities of Scofield, Indian Canyon, Cove Fort, Fish Lake, Joes Valley, Brian Head, and Alton 856 PM MDT Fri May 21 2021 ...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... South winds will continue to gust into the 30 mph range through the late evening hours. However advisory level winds are no longer expected, thus the Wind Advisory will be allowed to expire. $$ UTZ114>116-118>124-126>129-220400- /O.EXP.KSLC.WI.Y.0023.000000T0000Z-210522T0300Z/ Western Uinta Basin-Western Millard and Juab Counties- Eastern Juab/Millard Counties-Sanpete Valley-Sevier Valley- Castle Country-San Rafael Swell-Southwest Utah- Lower Washington County-Zion National Park- Upper Sevier River Valleys-Bryce Canyon Country- South Central Utah-Capitol Reef National Park and Vicinity- Including the cities of Duchesne, Roosevelt, Delta, Little Sahara, Nephi, Scipio, Fillmore, Manti, Ephraim, Mt Pleasant, Richfield, Salina, Price, Castle Dale, Emery, Green River, Goblin Valley, Beaver, Cedar City, Milford, St George, Hurricane, Ivins, Springdale, Panguitch, Circleville, Koosharem, Bryce Canyon City, Kanab, Escalante, Loa, and Torrey 856 PM MDT Fri May 21 2021 ...WIND ADVISORY WILL EXPIRE AT 9 PM MDT THIS EVENING... South winds will continue to gust into the 30 mph range through the late evening hours. However advisory level winds are no longer expected, thus the Wind Advisory will be allowed to expire. $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
5 follow-up statements
608 WWUS75 KSLC 220833 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 233 AM MDT Sat May 22 2021 UTZ130-131-222145- /O.CON.KSLC.WI.Y.0024.210522T1800Z-210523T0300Z/ Western Canyonlands-Glen Canyon Recreation Area/Lake Powell- Including the cities of Hanksville, Big Water, and Bullfrog 233 AM MDT Sat May 22 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS EVENING... * WHAT...South winds 25 to 35 mph expected. * WHERE...Glen Canyon Recreation Area/Lake Powell and Western Canyonlands. * WHEN...From noon today to 9 PM MDT this evening. * IMPACTS...Gusty winds will cause rough chop on Lake Powell. Small boats will be especially prone to capsizing. Winds may also blow around unsecured objects. A few power outages are possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
967 WWUS75 KSLC 221513 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 913 AM MDT Sat May 22 2021 UTZ130-131-230030- /O.CON.KSLC.WI.Y.0024.210522T1800Z-210523T0300Z/ Western Canyonlands-Glen Canyon Recreation Area/Lake Powell- Including the cities of Hanksville, Big Water, and Bullfrog 913 AM MDT Sat May 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Glen Canyon Recreation Area/Lake Powell and Western Canyonlands. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. A few power outages are possible. Rough conditions can be expected on area lakes including Lake Powell. Strong crosswinds are possible on east-west running routes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
744 WWUS75 KSLC 221537 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 937 AM MDT Sat May 22 2021 UTZ126-230000- /O.NEW.KSLC.HZ.W.0002.210523T0300Z-210523T1800Z/ Upper Sevier River Valleys- Including the cities of Panguitch, Circleville, and Koosharem 937 AM MDT Sat May 22 2021 ...HARD FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT SUNDAY... * WHAT...Sub-freezing temperatures as low as 24F expected. * WHERE...Upper Sevier River Valleys. * WHEN...From 9 PM this evening to noon MDT Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ UTZ130-131-230000- /O.CON.KSLC.WI.Y.0024.210522T1800Z-210523T0300Z/ Western Canyonlands-Glen Canyon Recreation Area/Lake Powell- Including the cities of Hanksville, Big Water, and Bullfrog 937 AM MDT Sat May 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Glen Canyon Recreation Area/Lake Powell and Western Canyonlands. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. A few power outages are possible. Rough conditions can be expected on area lakes including Lake Powell. Strong crosswinds are possible on east-west running routes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
830 WWUS75 KSLC 222136 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 336 PM MDT Sat May 22 2021 UTZ126-230600- /O.CON.KSLC.HZ.W.0002.210523T0300Z-210523T1800Z/ Upper Sevier River Valleys- Including the cities of Panguitch, Circleville, and Koosharem 336 PM MDT Sat May 22 2021 ...HARD FREEZE WARNING REMAINS IN EFFECT FROM 9 PM THIS EVENING TO NOON MDT SUNDAY... * WHAT...Sub-freezing temperatures as low as 24 expected. * WHERE...Upper Sevier River Valleys. * WHEN...From 9 PM this evening to noon MDT Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ UTZ130-131-230300- /O.CON.KSLC.WI.Y.0024.000000T0000Z-210523T0300Z/ Western Canyonlands-Glen Canyon Recreation Area/Lake Powell- Including the cities of Hanksville, Big Water, and Bullfrog 336 PM MDT Sat May 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...Southwest winds 25 to 35 mph with gusts up to 45 mph. * WHERE...Glen Canyon Recreation Area/Lake Powell and Western Canyonlands. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. A few power outages are possible. Rough conditions can be expected on area lakes including Lake Powell. Strong crosswinds are possible on east-west running routes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
131 WWUS75 KSLC 230009 NPWSLC URGENT - WEATHER MESSAGE National Weather Service Salt Lake City UT 609 PM MDT Sat May 22 2021 UTZ130-131-230115- /O.CAN.KSLC.WI.Y.0024.000000T0000Z-210523T0300Z/ Western Canyonlands-Glen Canyon Recreation Area/Lake Powell- Including the cities of Hanksville, Big Water, and Bullfrog 609 PM MDT Sat May 22 2021 ...WIND ADVISORY IS CANCELLED... Winds continue to diminish this evening and no longer pose a hazard. $$ UTZ126-230815- /O.CON.KSLC.HZ.W.0002.210523T0300Z-210523T1800Z/ Upper Sevier River Valleys- Including the cities of Panguitch, Circleville, and Koosharem 609 PM MDT Sat May 22 2021 ...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL NOON MDT SUNDAY... * WHAT...Sub-freezing temperatures as low as 24 expected. * WHERE...Upper Sevier River Valleys. * WHEN...Until noon MDT Sunday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ For more information from NOAA/National Weather Service visit... http://weather.gov/saltlakecity For information on potential travel impacts visit... http://udottraffic.utah.gov/roadweatherforecast.aspx
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 9:37 AM MDT | Hard Freeze Warning | SLC | Garfield, Piute, Sevier | 23 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.