Alert archive / Utah / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 23, NWS Grand Junction, CO

September 16, 2007San Juan County, Utah

NWS Grand Junction, CO issued this severe thunderstorm warning at Sep 16, 2007, 1:55 PM MDT for San Juan County, Utah. It was in force for 50 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
Sep 16, 2007, 1:55 PM MDT (19:55 UTC)
Expired
Sep 16, 2007, 2:45 PM MDT
In force
50 min
Issued by
NWS Grand Junction, CO
Area
Counties, with a storm outline in the text

County San Juan County, UT

The radar

The Grand Junction radar (KGJX), 212 km from the middle of the area, began a volume at 19:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 16, 12:38 PM MDTSevere Thunderstorm WatchSPC7 hr

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 Grand Junction, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 16, 4:00 AM MDT, 9 hours 55 minutes earlier.

Area forecast discussion, Sep 16, 4:00 AM MDT, 9 hours 55 minutes before
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Hazardous weather outlook, Sep 16, 1:33 PM MDT, 22 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
133 PM MDT SUN SEP 16 2007

COZ001>014-017>023-UTZ022>025-027>029-170200-
ANIMAS RIVER BASIN-ARCHES/GRAND FLAT-CANYONLANDS/NATURAL BRIDGES-
CENTRAL COLORADO RIVER BASIN-
CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN-
CENTRAL YAMPA RIVER BASIN-DEBEQUE TO SILT CORRIDOR-
EASTERN UINTA BASIN-EASTERN UINTA MOUNTAINS-
ELKHEAD AND PARK MOUNTAINS-FLAT TOPS-
FOUR CORNERS/UPPER DOLORES RIVER-
GORE AND ELK MOUNTAINS/CENTRAL MOUNTAINS-GRAND AND BATTLEMENT MESAS-
GRAND VALLEY-LA SAL AND ABAJO MOUNTAINS-LOWER YAMPA RIVER BASIN-
NORTHWEST SAN JUAN MOUNTAINS-PARADOX VALLEY/LOWER DOLORES RIVER-
ROAN AND TAVAPUTS PLATEAUS-SAN JUAN RIVER BASIN-SOUTHEAST UTAH-
SOUTHWEST SAN JUAN MOUNTAINS-TAVAPUTS PLATEAU-
UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE-UPPER GUNNISON RIVER VALLEY-
UPPER YAMPA RIVER BASIN-WEST ELK AND SAWATCH MOUNTAINS-
133 PM MDT SUN SEP 16 2007

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF EASTERN UTAH AND
WESTERN COLORADO UNTIL 8 PM MDT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN
COLORADO.

.DAY ONE...REST OF TODAY AND TONIGHT

SCATTERED THUNDERSTORMS WILL OCCUR THROUGH THIS AFTERNOON AND
EVENING. SOME SEVERE STORMS ARE POSSIBLE THIS AFTERNOON AND EARLY
EVENING...WITH LARGE HAIL AND DAMAGING WINDS. HEAVY DOWNPOURS WILL
ACCOMPANY SOME STORMS AS WELL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

WIDESPREAD SHOWERS AND THUNDERSTORMS WILL CONTINUE MONDAY THROUGH
MONDAY NIGHT. AFTER A BRIEF DRY PERIOD AT MIDWEEK...THERE WILL BE A
SLIGHT CHANCE OF THUNDERSTORMS THURSDAY NIGHT THROUGH SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS AFTERNOON. PLEASE RELAY
REPORTS OF HAIL...STRONG OR DAMAGING WINDS...AND HEAVY RAIN TO THE
NATIONAL WEATHER SERVICE IN GRAND JUNCTION.

TAL

In the hours before

Local storm report, Sep 16, 1:13 PM MDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
113 PM MDT SUN SEP 16 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 PM     TSTM WND GST     1 E GYPSUM              39.64N 106.93W
09/16/2007  M62 MPH          EAGLE              CO   AWOS

            OCCURRED AT THE EAGLE COUNTY REGIONAL AIRPORT.

&&

JPRINGLE

The office that day

Everything else NWS Grand Junction, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 16, 5:19 PM MDTSevere Thunderstorm WarningGJTMoffat, Rio Blanco41 min
Sep 16, 1:14 PM MDTSevere Thunderstorm WarningGJTSan Juan46 min

Nearby

Severe Thunderstorm Warnings in Utah, 2007Every severe thunderstorm warning in 2007

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.