Alert archive / Colorado / Flash Flood Warnings in 2014

Flash Flood Warning 17, NWS Grand Junction, CO

August 5, 2014Mesa County, Montrose County, Colorado; Grand County, San Juan County, Utah

NWS Grand Junction, CO issued this flash flood warning at Aug 5, 2014, 4:48 AM MDT for Mesa County, Montrose County, Colorado; Grand County, San Juan County, Utah. It was in force for 4 hr. 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 5, 2014, 4:48 AM MDT (10:48 UTC)
Expired: Aug 5, 2014, 8:45 AM MDT
In force: 4 hr
Issued by: NWS Grand Junction, CO
Area: Storm-based polygon
Flood severity: None

Counties Mesa County, CO, Montrose County, CO, Grand County, UT, San Juan County, UT

The radar

The Grand Junction radar (KGJX), 94 km from the middle of the area, began a volume at 10:48 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.

What 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.

NWS Grand Junction, CO wrote its last area forecast discussion before this flash flood warning went out at Aug 4, 5:00 PM MDT, 11 hours 48 minutes earlier.

Area forecast discussion, Aug 4, 5:00 PM MDT, 11 hours 48 minutes before

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Hazardous weather outlook, Aug 4, 5:28 AM MDT, 23 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
528 AM MDT MON AUG 4 2014

COZ001>014-017>023-UTZ022>025-027>029-051200-
LOWER YAMPA RIVER BASIN-CENTRAL YAMPA RIVER BASIN-
ROAN AND TAVAPUTS PLATEAUS-ELKHEAD AND PARK MOUNTAINS-
UPPER YAMPA RIVER BASIN-GRAND VALLEY-DEBEQUE TO SILT CORRIDOR-
CENTRAL COLORADO RIVER BASIN-GRAND AND BATTLEMENT MESAS-
GORE AND ELK MOUNTAINS/CENTRAL MOUNTAIN VALLEYS-
CENTRAL GUNNISON AND UNCOMPAHGRE RIVER BASIN-
WEST ELK AND SAWATCH MOUNTAINS-FLATTOPS-
UPPER GUNNISON RIVER VALLEY-UNCOMPAHGRE PLATEAU AND DALLAS DIVIDE-
NORTHWEST SAN JUAN MOUNTAINS-SOUTHWEST SAN JUAN MOUNTAINS-
PARADOX VALLEY/LOWER DOLORES RIVER-
FOUR CORNERS/UPPER DOLORES RIVER-ANIMAS RIVER BASIN-
SAN JUAN RIVER BASIN-SOUTHEAST UTAH-EASTERN UINTA MOUNTAINS-
EASTERN UINTA BASIN-TAVAPUTS PLATEAU-ARCHES/GRAND FLAT-
LA SAL AND ABAJO MOUNTAINS-CANYONLANDS/NATURAL BRIDGES-
528 AM MDT MON AUG 4 2014

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

.DAY ONE...TODAY AND TONIGHT

SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS EASTERN UTAH AND
WESTERN COLORADO THROUGH TONIGHT. A FEW STORMS WILL BE CAPABLE OF
PRODUCING HEAVY RAIN...SMALL HAIL AND GUSTY WINDS TO 45 MPH.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WILL CONTINUE
ACROSS THE REGION THROUGH TUESDAY...BEFORE DRIER CONDITIONS SWEEP
IN. THE DRYING WILL BE BRIEF...AS ANOTHER PACIFIC STORM SYSTEM
BRING A NEW CHANCE FOR SHOWERS AND THUNDERSTORMS THURSDAY...WITH
YET ANOTHER SURGE OF MOISTURE TRYING TO WORK BACK INTO THE REGION
LATE IN THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 7:10 PM MDT	Special Weather Statement	GJT	San Miguel	35 min
Aug 4, 7:12 PM MDT	Areal Flood Advisory	GJT	Montezuma	3 hr
Aug 4, 7:49 PM MDT	Special Weather Statement	GJT	Montrose	26 min
Aug 4, 9:38 PM MDT	Special Weather Statement	GJT		37 min
Aug 5, 1:37 AM MDT	Areal Flood Advisory	GJT	Mesa, Montrose	7 hr
Aug 5, 2:41 AM MDT	Flash Flood Watch	GJT	Delta, Dolores, Eagle, Garfield, Gunnison, Mesa and 7 more	10 hr
Aug 4, 8:37 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr
Aug 4, 9:16 PM MDT	Flash Flood Warning	GJT	San Juan	3 hr

Nearby

Flash Flood Warnings in Colorado, 2014 Flash Flood Warnings in Utah, 2014 Every flash flood warning in 2014

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.