Alert archive / Utah / Flash Flood Warnings in 1998
Flash Flood Warning 26, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Jul 27, 1998, 2:51 PM MDT for Washington County, Utah. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jul 27, 1998, 2:51 PM MDT (20:51 UTC)
- Expired
- Jul 27, 1998, 5:45 PM MDT
- In force
- 3 hr
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Washington County, UT
The radar
The Cedar City radar (KICX), 37 km from the middle of the area, began a volume at 20:51 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, 8.9 hours before the alert went out and 253 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
- 1820 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 18 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 272055
FFWSLC
UTC053-272345-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
251 PM MDT MON JUL 27 1998
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL WASHINGTON COUNTY IN UTAH INCLUDING ZION NP
* UNTIL 545 PM MDT
* AT 245 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAIN 16 MILES NORTH OF ZION NP...OR ABOUT 20 MILES SOUTHEAST
OF CEDAR CITY. THIS AREA OF RAIN WAS NEARLY STATIONARY.
RAPID RISES IN WATER ARE EXPECTED ON THE NORTH FORK OF THE VIRGIN
RIVER INCLUDING IN THE ZION NARROWS AND ON DEEP CREEK NORTH OF ITS
CONFLUENCE WITH THE VIRGIN RIVER.
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 FOR UPDATES.
LAT...LON 3715 11314 3716 11290 3749 11290 3746 11308The 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, 5:37 PM MDT | Flash Flood Warning | SLC | Iron, Washington | 83 min |
| Jul 27, 5:47 PM MDT | Flash Flood Warning | SLC | Iron, Washington | 73 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.