Nimbus

Flash Flood Warning

NWS Grand Junction CO ยท US

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Details

Flash Flood Warning issued September 15 at 2:42PM MDT until September 15 at 5:45PM MDT by NWS Grand Junction CO

Issued
Onset
Expires
Category
Meteorological
Urgency
Immediate
Severity
Severe
Certainty
Likely
Response
Avoid

Description

Overview

FFWGJT The National Weather Service in Grand Junction has issued a * Flash Flood Warning for... Eastern San Miguel County in southwestern Colorado... * Until 545 PM MDT. * At 242 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly.

Hazard

Flash flooding caused by thunderstorms.

Source

Radar indicated.

Impacts

Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Sawpit, Fall Creek and Placerville. This includes the following streams and drainages... Fall Creek, Deep Creek, Big Bear Creek, Muddy Creek, Saltado Creek, South Fork San Miguel River, Dolores River, Specie Creek, San Miguel River, Leopard Creek and Alder Creek.

Instructions

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Highway 145 is prone to rockslides and mudslides in heavy rain. Stay alert for rocks and debris on roads, and avoid driving on flooded roads. Find an alternate route.

Affected areas

  • San Miguel, CO

Public contact

Issuer
NWS Grand Junction CO

Message record

Received
CAP status
Actual
CAP message type
Alert
Lifecycle
New
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M2KCY5GY7SX9RM3G7VDZE4YF
Identifier
urn:oid:2.49.0.1.840.0.f00f6b1fbe35777ec9c1a4152399d983439fbca1.001.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Grand Junction CO
AWIPS ID
CAPGJT
NWWS sequence
nwws_processor.4226
WMO heading
XOUS55
WMO data type
CAP alert message XML (XO)
WMO geography
United States (US)
WMO bulletin number
55

Event codes

NameValue
SAMEFFW
NationalWeatherServiceFFW

Parameters

NameValue
AWIPSidentifierFFWGJT
WMOidentifierWGUS55 KGJT 152042
flashFloodDetectionRADAR INDICATED
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.NEW.KGJT.FF.W.0115.260915T2042Z-260915T2345Z/
eventEndingTime2026-09-15T17:45:00-06:00
BLOCKCHANNELCMAS
Locations

Location data

  • San Miguel, CO
NameValue
SAME008113
UGCCOC113
Polygons
38.04,-108.07 38.06,-108.02 38.02,-108.02 38.01,-107.94 37.97,-107.91 37.99,-107.87 37.89,-107.94 37.84,-107.95 37.83,-107.97 37.86,-107.99 37.91,-107.94 37.94,-107.95 37.96,-108.01 37.99,-108.02 37.98,-108.07 38.03,-108.11 38.02,-108.14 38.09,-108.19 38.04,-108.07