Alert archive / Utah / Special Weather Statements in 2021
Special Weather Statement, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this special weather statement at Jul 29, 2021, 3:13 PM MDT for Beaver County, Utah. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 29, 2021, 3:13 PM MDT (21:13 UTC)
- Expired
- Jul 29, 2021, 3:45 PM MDT
- In force
- 32 min
- Issued by
- NWS Salt Lake City, UT
County Beaver County, UT
The radar
The Cedar City radar (KICX), 95 km from the middle of the area, began a volume at 21:15 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
Salt Lake City I, UT (KSLC), launched 12:00Z, 9.2 hours before the alert went out and 270 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
- 1489 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
279 WWUS85 KSLC 292113 SPSSLC Special Weather Statement National Weather Service Salt Lake City UT 313 PM MDT Thu Jul 29 2021 UTZ117-122-125-292145- Southwest Utah UT-Southern Mountains UT-Central Mountains UT- 313 PM MDT Thu Jul 29 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MILLARD AND NORTHEASTERN BEAVER COUNTIES UNTIL 345 PM MDT... At 313 PM MDT, National Weather Service Doppler radar indicated a strong thunderstorm 10 miles northwest of Beaver...moving north at 10 mph. Half inch hail will be possible. Locations impacted include... Manderfield. This includes the following highways... Interstate 15 between mile markers 116 and 132. Interstate 70 between mile markers 0 and 1. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3835 11258 3832 11281 3855 11291 3859 11257 TIME...MOT...LOC 2113Z 170DEG 8KT 3841 11271 $$ ND
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 7:56 PM MDT | Special Weather Statement | SLC | Tooele | 49 min |
| Jul 28, 9:52 PM MDT | Special Weather Statement | SLC | Davis | 83 min |
| Jul 29, 2:38 AM MDT | Flash Flood Watch | SLC | Emery, Garfield, Kane, San Juan, Sevier, Washington and 1 more | 21 hr |
| Jul 29, 1:40 PM MDT | Special Weather Statement | SLC | Iron | 20 min |
| Jul 29, 2:00 PM MDT | Severe Thunderstorm Warning | SLC | Iron, Washington | 30 min |
| Jul 29, 2:17 PM MDT | Special Weather Statement | SLC | Piute | 28 min |
| Jul 29, 2:26 PM MDT | Special Weather Statement | SLC | Beaver | 34 min |
| Jul 29, 2:39 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 36 min |
| Jul 29, 2:50 PM MDT | Areal Flood Advisory | SLC | Beaver | 115 min |
| Jul 29, 3:33 PM MDT | Special Weather Statement | SLC | Iron | 27 min |
| Jul 29, 3:54 PM MDT | Special Weather Statement | SLC | Millard | 36 min |
| Jul 29, 4:11 PM MDT | Special Weather Statement | SLC | 34 min | |
| Jul 29, 4:22 PM MDT | Special Weather Statement | SLC | Juab | 23 min |
| Jul 29, 4:37 PM MDT | Special Weather Statement | SLC | Garfield | 23 min |
| Jul 29, 4:48 PM MDT | Severe Thunderstorm Warning | SLC | Garfield, Iron | 27 min |
| Jul 29, 4:54 PM MDT | Severe Thunderstorm Warning | SLC | Piute, Sevier | 36 min |
| Jul 29, 5:18 PM MDT | Special Weather Statement | SLC | Garfield | 27 min |
| Jul 29, 5:42 PM MDT | Severe Thunderstorm Warning | SLC | Garfield | 33 min |
Nearby
Special Weather Statements in Utah, 2021Every special weather statement 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.