Alert archive / Colorado / Flash Flood Watches in 2012

Flash Flood Watch 1, NWS Grand Junction, CO

July 7, 201217 counties in Colorado

NWS Grand Junction, CO issued this flash flood watch at Jul 7, 2012, 3:56 AM MDT for 17 counties in Colorado. It took effect at Jul 7, 2012, 12:00 PM MDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jul 7, 2012, 3:56 AM MDT (09:56 UTC)
In effect from
Jul 7, 2012, 12:00 PM MDT
Expired
Jul 7, 2012, 8:41 PM MDT
In force
9 hr
Issued by
NWS Grand Junction, CO
Flood severity
None

Counties Archuleta County, CO, Delta County, CO, Dolores County, CO, Eagle County, CO, Garfield County, CO, Gunnison County, CO, Hinsdale County, CO, La Plata County, CO, Moffat County, CO, Montezuma County, CO, Montrose County, CO, Ouray County, CO, Pitkin County, CO, Rio Blanco County, CO, Routt County, CO, San Juan County, CO, San Miguel County, CO

The radar

The Grand Junction radar (KGJX), 64 km from the middle of the area, began a volume at 09:55 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.

What forecasters said that day

The local office's own words before this flash flood watch 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 watch went out at Jul 7, 3:14 AM MDT, 42 minutes earlier.

Area forecast discussion, Jul 7, 3:14 AM MDT, 42 minutes before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Hazardous weather outlook, Jul 6, 5:46 AM MDT, 22 hours 10 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
546 AM MDT FRI JUL 6 2012

COZ001>014-017>023-UTZ022>025-027>029-071200-
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-
546 AM MDT FRI JUL 6 2012

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

.DAY ONE...TODAY AND TONIGHT

ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS EXPECTED TODAY STARTING
AROUND NOON AND CONTINUING THROUGH THE EVENING HOURS.  HIGHER TERRAIN
WILL BE FAVORED BEFORE THE STORMS AND SHOWERS DRIFT INTO ADJACENT
VALLEYS. SOME HEAVY RAINFALL IS POSSIBLE UNDER THE STRONGER
STORMS AND SHOWERS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

MOISTURE WILL CONTINUE STREAMING INTO THE REGION THROUGH THE
REMAINDER OF THE WEEK AND INTO THE WEEKEND. THIS WILL FUEL
SCATTERED THUNDERSTORMS EACH AFTERNOON AND EVENING. THUNDERSTORMS
WILL GRADUALLY DECREASE FROM NORTH TO SOUTH EARLY NEXT WEEK AS
DRIER AIR FILTERS INTO THE REGION FROM THE NORTH.

.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.

IssuedProductOfficeCountiesLasted
Jul 7, 4:21 PM MDTFlash Flood WarningGJTGunnison, Pitkin3 hr
Jul 7, 4:45 PM MDTFlash Flood WarningGJTGarfield3 hr
Jul 7, 5:07 PM MDTFlash Flood WarningGJTGarfield, Mesa3 hr
Jul 7, 5:50 PM MDTFlash Flood WarningGJTMoffat, Routt3 hr

Nearby

Flash Flood Watches in Colorado, 2012Every flash flood watch in 2012

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.