Severe Thunderstorm Warning 64, NWS Salt Lake City, UT

Issued

Aug 9, 2005, 7:04 PM MDT (01:04 UTC)

Expired

Aug 9, 2005, 7:22 PM MDT

In force

18 min

Issued by

NWS Salt Lake City, UT

Area

Counties, with a storm outline in the text

County Morgan County, UT

The Salt Lake City radar (KMTX), 81 km from the middle of the area, began a volume at 01:08 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WUUS55 KSLC 100105
SVRSLC
UTC029-100130-
/O.NEW.KSLC.SV.W.0064.050810T0104Z-050810T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
704 PM MDT TUE AUG 9 2005

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL MORGAN COUNTY IN UTAH

* UNTIL 730 PM MDT

* AT 655 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED OVER SOUTH CENTRAL MORGAN COUNTY...OR ABOUT 11
  MILES WEST OF COALVILLE. THIS STORM WAS NEARLY STATIONARY.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

HEAVY RAINFALL WILL ACCOMPANY THIS STORM AS IT REMAINS NEAR EAST 
CANYON RESERVOIR. 

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4095 11165 4084 11165 4084 11152 4094 11154

$$

000 
WWUS55 KSLC 100122
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
721 PM MDT TUE AUG 9 2005

UTC029-100131-
/O.CAN.KSLC.SV.W.0064.000000T0000Z-050810T0130Z/
MORGAN UT-
721 PM MDT TUE AUG 9 2005

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MORGAN COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORM NEAR EAST CANYON RESERVOIR NO LONGER APPEARS 
TO BE PRODUCING LARGE HAIL. 

LAT...LON 4095 11165 4084 11165 4084 11152 4094 11154

$$

NWS Salt Lake City, UT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 9, 3:00 PM MDT, 4 hours 4 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
300 PM MDT TUE AUG 9 2005

.SYNOPSIS...MOISTURE WILL REMAIN OVER THE AREA THROUGH WEDNESDAY. A
DRYING TREND FROM THE NORTH WILL BEGIN THURSDAY BUT MOISTURE WILL
REMAIN OVER THE SOUTHERN PORTION OF THE AREA THROUGH THE REMAINDER
OF THE WEEK.

&&

.DISCUSSION...REMNANT CLOUD COVER OVER THE SOUTH HAS DELAYED ONSET
OF CONVECTION OVER THAT AREA THUS FAR THIS AFTERNOON...BUT ACTIVITY
NOW GETTING GOING AND EXPECT IT TO CONTINUE WELL INTO THE NIGHT
GIVEN THE VERY HIGH MOISTURE CONTENT OF THE AIRMASS.

NORTH OF ABOUT I-70 CONVECTION HAS BEEN GOING FOR A FEW HOURS IN
MANY OF THE USUAL TERRAIN INDUCED SPOTS. ACTIVITY ACROSS NE NV THIS
AFTERNOON LENDS SOME CREDIBILITY TO THE 12Z ETA IDEA OF A SHORT WAVE
TROUGH AT 500 MB AND ABOVE MOVING INTO NW UT LATE AFTERNOON/EVENING.
WITH AMPLE MOISTURE STILL IN PLACE OVER THE AREA...CONVECTION LIKELY
TO PERSIST WELL PAST DARK.

WEDNESDAY LOOKS TO BE POTENTIALLY BIG DAY FOR STORMS AS 300 MB JET
ENTRANCE REGION TO BE DIRECTLY OVER THE AREA AND AIRMASS WILL
CONTINUE TO BE QUITE UNSTABLE...ESPECIALLY OVER THE SOUTHWEST WHERE
LATEST 18Z ETA SHOWS AROUND 2000 J/KG CAPE WED AFTERNOON. ENOUGH
SHEAR ACROSS N. UT FOR POTENTIALLY SEVERE STORMS...BUT BEST
INSTABILITY WILL BE SOUTH OF JET AXIS OVER CENTRAL/SOUTHERN UT.

DRYING TREND BEGINS THURSDAY OVER THE NORTH...MORE SO ON THE
GFS...AND 18Z ETA THAN ON THE 12Z ETA. MODELS ARE OFTEN ABOUT A DAY
TOO FAST ON DRYING US OUT...BUT IDEA OF DRYING OVER THE NORTH LOOKS
OK...WITH SLOWEST SOLUTION PREFERRED. VERY LITTLE DRYING OVER THE
SOUTH THROUGH THE REST OF THE WEEK WITH DIFFERENT MODEL SOLUTIONS
HANDLING UPPER CIRCULATION OVER NW AZ DIFFERENTLY...BUT ALL
INDICATED CONTINUED CONVECTIVE ACTIVITY OVER THE SOUTH AT LEAST
THROUGH FRIDAY AND PROBABLY LONGER.

&&

.AVIATION...SEE SLCTAFSLC

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.

&&

DUNN

Severe Thunderstorm Warnings in Utah, 2005Every severe thunderstorm warning in 2005

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.