Alert archive / Utah / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 44, NWS Salt Lake City, UT

August 27, 1999Box Elder County, Tooele County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 27, 1999, 8:09 PM MDT for Box Elder County, Tooele County, Utah. It was in force for 66 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: Aug 27, 1999, 8:09 PM MDT (02:09 UTC)
Expired: Aug 27, 1999, 9:15 PM MDT
In force: 66 min
Issued by: NWS Salt Lake City, UT
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Box Elder County, UT, Tooele County, UT

The radar

The Salt Lake City radar (KMTX), 63 km from the middle of the area, began a volume at 02:11 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 text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Salt Lake City, UT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 27, 3:12 PM MDT, 4 hours 57 minutes earlier.

Area forecast discussion, Aug 27, 3:12 PM MDT, 4 hours 57 minutes before

UTAH AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UTAH
312 PM MDT FRI AUG 27 1999

SYNOPSIS...AN UPPER LEVEL LOW WILL MOVE ACROSS NORTHERN UTAH
TONIGHT.  THE AIRMASS WILL REMAIN SOMEWHAT MOIST INTO SATURDAY
THEN DRY OUT ON SUNDAY.

DISCUSSION...VORTLOBE SWINGING THRU UT AT THIS TIME ENHANCING THE
CONVECTION NICELY AND HAVE HAD REPORTS OF LOCALLY HEAVY RAIN FROM
PORTIONS OF NERN CWA. SEEMS THAT THIS SHOULD BE GREATEST THREAT
REST OF THIS EVENING AS OPPOSED TO WIND AND HAIL AND HAVE EXPANDED
FLASH FLOOD WATCH NWD TO COVER DUCHESNE, CARBON AND EMERY COUNTIES.
SOME COOLING ALOFT CONTINUES TO SPREAD INTO CWA ON SAT SO HAVE LEFT A
MENTION OF POPS IN MOST ZONES BUT AIRMASS SHOULD CONTINUE TO DRY AND
STABILIZE SUN. NEXT TROF STARTS TO KICK UP THE SLY FLOW ON MON AND
MAY TAP BACK INTO SOME MOISTURE FROM THE S MON/TUE BEFORE THE FLOW
VEERS TO TOO SWLY ON WED AND CUTS US OFF AGAIN. TRENDED EXTENDED THAT
WAY.

SLC 732- CDC 51--  WILENSKY

.SLC...FLASH FLOOD WATCH ERN COUNTY WARNING AREA TIL MIDNIGHT.

Nearby

Severe Thunderstorm Warnings in Utah, 1999 Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.