Alert archive / Colorado / Red Flag Warnings in 2015
Red Flag Warning 8, NWS Grand Junction, CO
NWS Grand Junction, CO issued this red flag warning at Apr 13, 2015, 11:51 AM MDT for 14 counties in Colorado. It took effect at Apr 14, 2015, 11:00 AM MDT. It was in force for 10 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
- Apr 13, 2015, 11:51 AM MDT (17:51 UTC)
- In effect from
- Apr 14, 2015, 11:00 AM MDT
- Expired
- Apr 14, 2015, 9:00 PM MDT
- In force
- 10 hr
- Issued by
- NWS Grand Junction, CO
Counties Delta County, CO, Dolores County, CO, Eagle County, CO, Garfield County, CO, La Plata County, CO, Mesa 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 Miguel County, CO
The radar
The Grand Junction radar (KGJX), 33 km from the middle of the area, began a volume at 17:56 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 nearest sounding before it
Grand Junction, CO (KGJT), launched 12:00Z, 5.9 hours before the alert went out and 58 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3453 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this red flag 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 red flag warning went out at Apr 13, 6:01 AM MDT, 5 hours 50 minutes earlier.
Area forecast discussion, Apr 13, 6:01 AM MDT, 5 hours 50 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, Apr 13, 6:15 AM MDT, 5 hours 36 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND JUNCTION CO 615 AM MDT MON APR 13 2015 COZ001>014-017>023-UTZ022>025-027>029-141215- 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- 615 AM MDT MON APR 13 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN UTAH AND WESTERN COLORADO. ...VIGOROUS PACIFIC STORM WILL IMPACT EASTERN UTAH AND WESTERN COLORADO BEGINNING TUESDAY... .DAY ONE...TODAY AND TONIGHT ISOLATED SNOW SHOWERS ARE EXPECTED OVER THE SAN JUAN MOUNTAINS THIS AFTERNOON. THE SNOW LEVEL WILL BE ABOVE 10000 FEET SO IMPACTS FROM THIS ACTIVITY WILL BE MINIMAL. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY VERY STRONG WINDS WILL DEVELOP TUESDAY AHEAD OF A PACIFIC STORM SYSTEM. WIND GUSTS UP TO 60 MPH WILL BE POSSIBLE BY LATE TUESDAY AFTERNOON. THE STRONG TO HIGH WINDS WILL GRADUALLY DIMINISH LATE TUESDAY NIGHT. THE CHANCE FOR PRECIPITATION WILL DEVELOP LATE TUESDAY AND INCREASE THROUGH WEDNESDAY...ESPECIALLY ACROSS THE NORTH. COLDER TEMPERATURES WILL CAUSE SNOW LEVELS TO LOWER TO VALLEY FLOORS BY DAYBREAK WEDNESDAY. MOUNTAIN SNOW SHOWERS WILL LINGER INTO FRIDAY...AND POSSIBLY BEYOND. HOWEVER THE FAVORED AREA WILL SHIFT TO THE SOUTH. WIDESPREAD FREEZING TEMPERATURES ARE LIKELY LATE WEDNESDAY NIGHT INTO THURSDAY MORNING. .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 |
|---|---|---|---|---|
| Apr 13, 4:35 AM MDT | High Wind Watch | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Mesa and 7 more | 17 hr |
| Apr 13, 2:56 PM MDT | Freeze Watch | GJT | Delta, Garfield, Gunnison, Mesa, Moffat, Montrose and 1 more | 36 hr |
| Apr 13, 2:56 PM MDT | High Wind Warning | GJT | Garfield, Mesa, Moffat, Rio Blanco | 36 hr |
| Apr 13, 2:56 PM MDT | Wind Advisory | GJT | Delta, Dolores, Eagle, Garfield, Gunnison, Mesa and 7 more | 36 hr |
Nearby
Red Flag Warnings in Colorado, 2015Every red flag warning in 2015
Sources
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.