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 26, 2021, 2:00 PM MDT for Washington County, Utah. It was in force for 45 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 26, 2021, 2:00 PM MDT (20:00 UTC)
- Expired
- Jul 26, 2021, 2:45 PM MDT
- In force
- 45 min
- Issued by
- NWS Salt Lake City, UT
County Washington County, UT
The radar
The Cedar City radar (KICX), 50 km from the middle of the area, began a volume at 19:59 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
Las Vegas, NV (KVEF), launched 12:00Z, 8.0 hours before the alert went out and 231 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
- 467 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 1095 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
493 WWUS85 KSLC 262000 SPSSLC Special Weather Statement National Weather Service Salt Lake City UT 200 PM MDT Mon Jul 26 2021 UTZ123>125-128-262045- South Central Utah UT-Southern Mountains UT-Zion National Park UT- Lower Washington County UT- 200 PM MDT Mon Jul 26 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WASHINGTON COUNTY UNTIL 245 PM MDT... At 200 PM MDT, National Weather Service Doppler radar indicated a strong thunderstorm near Apple Valley, or 11 miles southwest of Zion National Park...moving northwest at 10 mph. Wind gusts up to 50 mph will be possible. Locations impacted include... Zion National Park, Hurricane, La Verkin, Quail Creek State Park, Apple Valley, Toquerville, Leeds, Virgin and Rockville. This includes Interstate 15 between mile markers 24 and 31. PRECAUTIONARY/PREPAREDNESS ACTIONS... If threatening weather approaches, take shelter in a sturdy building. && LAT...LON 3723 11303 3711 11306 3713 11340 3736 11332 TIME...MOT...LOC 2000Z 112DEG 9KT 3718 11314 $$ Webber
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 6:06 PM MDT | Special Weather Statement | SLC | Washington | 39 min |
| Jul 25, 6:16 PM MDT | Special Weather Statement | SLC | Washington | 44 min |
| Jul 26, 3:37 AM MDT | Flash Flood Watch | SLC | Beaver, Garfield, Iron, Kane, Piute, Washington and 1 more | 20 hr |
| Jul 26, 1:13 PM MDT | Flash Flood Warning | SLC | Kane, Washington | 3 hr |
| Jul 26, 1:37 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 23 min |
| Jul 26, 1:40 PM MDT | Flash Flood Warning | SLC | Garfield | 3 hr |
| Jul 26, 1:47 PM MDT | Special Weather Statement | SLC | Piute | 43 min |
| Jul 26, 2:07 PM MDT | Areal Flood Advisory | SLC | Washington | 53 min |
| Jul 26, 2:12 PM MDT | Areal Flood Advisory | SLC | Iron | 2 hr |
| Jul 26, 2:35 PM MDT | Flash Flood Warning | SLC | Iron | 115 min |
| Jul 26, 2:45 PM MDT | Flash Flood Warning | SLC | Garfield | 4 hr |
| Jul 26, 2:53 PM MDT | Flash Flood Warning | SLC | Iron, Washington | 3 hr |
| Jul 26, 3:01 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 29 min |
| Jul 26, 3:07 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 23 min |
| Jul 26, 3:20 PM MDT | Severe Thunderstorm Warning | SLC | Beaver, Iron | 2 min |
| Jul 26, 3:26 PM MDT | Special Weather Statement | SLC | Washington | 49 min |
| Jul 26, 3:30 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 30 min |
| Jul 26, 3:32 PM MDT | Areal Flood Advisory | SLC | Washington | 118 min |
| Jul 26, 3:32 PM MDT | Flash Flood Warning | SLC | Beaver | 3 hr |
| Jul 26, 4:00 PM MDT | Severe Thunderstorm Warning | SLC | Washington | 30 min |
| Jul 26, 4:34 PM MDT | Special Weather Statement | SLC | Washington | 41 min |
| Jul 26, 4:55 PM MDT | Special Weather Statement | SLC | Beaver | 50 min |
| Jul 26, 5:30 PM MDT | Flash Flood Warning | SLC | Kane | 6 hr |
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.