Alert archive / Utah / Flash Flood Warnings in 1998
Flash Flood Warning 28, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 27, 1998, 5:47 PM MDT for Iron County, Washington County, Utah. It was in force for 73 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 27, 1998, 5:47 PM MDT (23:47 UTC)
- Expired
- Jul 27, 1998, 7:00 PM MDT
- In force
- 73 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties
Counties Iron County, UT, Washington County, UT
The radar
The Cedar City radar (KICX), 47 km from the middle of the area, began a volume at 23:47 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
Mercury/Desert R, NV (KDRA), launched 12:00Z, 11.8 hours before the alert went out and 254 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
- 213 J/kg
- Mixed-layer CIN
- -306 J/kg
- Mixed-layer LCL
- 2806 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSLC 272354 COR
FFWSLC
UTC021-053-280700-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
547 PM MDT MON JUL 27 1998
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
IRON COUNTY IN UTAH
NORTHEASTERN WASHINGTON COUNTY IN UTAH
INCLUDING PAROWAN AND CEDAR CITY
* UNTIL 700 PM MDT
* AT 530 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAIN IN WEST CENTRAL IRON COUNTY, FROM LUND TO BERYL TO
NEWCASTLE. THIS AREA OF RAIN IS MOVING EAST AT ABOUT 15 MPH.
FLOODING IS ALSO REPORTED IN THE NARROWS OF ZION CANYON.
FLOODING IS POSSIBLE THROUGHOUT CENTRAL IRON COUNTY AND SOUTH ACROSS
THE ANTELOPE MOUNTAINS INTO THE NEW HARMONY AREA. THE HEAVY RAIN
FROM THESE STORMS MAY CONTINUE AND AFFECT THE INTERSTATE 15 CORRIDOR IN IRON
COUNTY AFTER 630 PM.
THE FLOODWATERS IN ZION CANYON ARE EXPECTED TO REACH THE SPRINGDALE
AREA BY 7PM.
TO REPORT FLASH FLOODING HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY.
STAY TUNED TO LOCAL TELEVISION...RADIO...CABLE TV...OR NOAA WEATHER
RADIO FO R UPDATES.The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 6:15 PM MDT | Flash Flood Warning | SLC | Davis, Morgan, Weber | 30 min |
| Jul 26, 6:30 PM MDT | Flash Flood Warning | SLC | Davis, Morgan, Weber | 15 min |
| Jul 26, 9:21 PM MDT | Flash Flood Warning | SLC | Box Elder | 54 min |
| Jul 27, 1:25 AM MDT | Flash Flood Warning | SLC | Box Elder | 65 min |
| Jul 27, 2:10 PM MDT | Flash Flood Warning | SLC | Garfield, Iron, Kane | 2 hr |
| Jul 27, 2:51 PM MDT | Flash Flood Warning | SLC | Washington | 3 hr |
| Jul 27, 5:37 PM MDT | Flash Flood Warning | SLC | Iron, Washington | 83 min |
Nearby
Flash Flood Warnings in Utah, 1998Every flash flood warning in 1998
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.