Alert archive / Utah / Flash Flood Warnings in 1998
Flash Flood Warning 36, NWS Salt Lake City, UT
NWS Salt Lake City, UT issued this flash flood warning at Aug 9, 1998, 1:32 PM MDT for Kane County, Washington County, Utah. It was in force for 118 min. 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
- Aug 9, 1998, 1:32 PM MDT (19:32 UTC)
- Expired
- Aug 9, 1998, 3:30 PM MDT
- In force
- 118 min
- Issued by
- NWS Salt Lake City, UT
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Kane County, UT, Washington County, UT
The radar
The Cedar City radar (KICX), 53 km from the middle of the area, began a volume at 19:35 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, 7.5 hours before the alert went out and 239 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
- 10 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 2376 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 8 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 091937
FFWSLC
UTC025-053-092130-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
132 PM MDT SUN AUG 9 1998
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN WASHINGTON COUNTY IN UTAH
EXTREME SOUTHWESTERN KANE COUNTY IN UTAH
* UNTIL 330 PM MDT
* AT 129 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
RAIN 2 MILES SOUTH OF SPRINGDALE...OR ABOUT 26 MILES WEST OF
KANAB...MOVING NORTH AT 10 MILES PER HOUR.
* OTHER LOCATIONS IN THE WARNING INCLUDE HILDALE...SPRINGDALE AND
ZION NP
* THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE...
OVER ZION NP SOUTH ENTRANCE AT 145 PM
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID
CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
LAT...LON 3700 11319 3699 11289 3732 11281 3736 11308What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 9, 12:00 PM MDT, 1 hour 32 minutes before
IDZ024-025-UTZ001>027-WYZ021-100000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1200 PM MDT SUN AUG 9 1998 ...A CHANCE OF HEAVY RAINS FOR UTAH MONDAY AND TUESDAY... FORMER TROPICAL STORM FRANK...NOW A TROPICAL DEPRESSION...IS MOVING UP THROUGH BAJA CALIFORNIA. FRANK IS EXPECTED TO DISSIPATE AS IT MOVES CLOSER TO THE SOUTHERN CALIFORNIA DESERTS AND SOUTHERN ARIZONA. THE REMNANTS OF THIS STORM WILL LIKELY BRING HEAVY RAINS TO PORTIONS OF THE SOUTHWESTERN U.S. BEGINNING LATER TODAY. WEATHER CHARTS INDICATE THAT WIDESPREAD HEAVY RAINS COULD OCCUR OVER PORTIONS OF UTAH BEGINNING MONDAY AND CONTINUE INTO TUESDAY. IT IS EVEN POSSIBLE FOR SOME LOCAL HEAVY SHOWERS IN EXTREME SOUTHWEST UTAH TONIGHT. AS WITH MOST TROPICAL RAIN SYSTEMS...PREDICTIONS CAN BE DIFFICULT...THUS THOSE PLANNING OUTDOOR ACTIVITIES ESPECIALLY CAMPERS AND HIKERS SHOULD BE AWARE OF POTENTIAL FLOODING AND STAY TUNED TO LOCAL RADIO OR TELEVISION...CABLE TV OR NOAA WEATHER RADIO FOR FURTHER UPDATES.
Special weather statement, Aug 9, 12:00 PM MDT, 1 hour 32 minutes before
IDZ024-025-UTZ001>027-WYZ021-100000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SALT LAKE CITY UT 1200 PM MDT SUN AUG 9 1998 ...A CHANCE OF HEAVY RAINS FOR UTAH MONDAY AND TUESDAY... FORMER TROPICAL STORM FRANK...NOW A TROPICAL DEPRESSION...IS MOVING UP THROUGH BAJA CALIFORNIA. FRANK IS EXPECTED TO DISSIPATE AS IT MOVES CLOSER TO THE SOUTHERN CALIFORNIA DESERTS AND SOUTHERN ARIZONA. THE REMNANTS OF THIS STORM WILL LIKELY BRING HEAVY RAINS TO PORTIONS OF THE SOUTHWESTERN U.S. BEGINNING LATER TODAY. WEATHER CHARTS INDICATE THAT WIDESPREAD HEAVY RAINS COULD OCCUR OVER PORTIONS OF UTAH BEGINNING MONDAY AND CONTINUE INTO TUESDAY. IT IS EVEN POSSIBLE FOR SOME LOCAL HEAVY SHOWERS IN EXTREME SOUTHWEST UTAH TONIGHT. AS WITH MOST TROPICAL RAIN SYSTEMS...PREDICTIONS CAN BE DIFFICULT...THUS THOSE PLANNING OUTDOOR ACTIVITIES ESPECIALLY CAMPERS AND HIKERS SHOULD BE AWARE OF POTENTIAL FLOODING AND STAY TUNED TO LOCAL RADIO OR TELEVISION...CABLE TV OR NOAA WEATHER RADIO FOR FURTHER UPDATES.
The office that day
Everything else NWS Salt Lake City, UT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 8:25 PM MDT | Severe Thunderstorm Warning | SLC | Cache | 50 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.