Warning Vector

Flash Flood Warning

NWS Pocatello ID ยท US

New WEA requested
This event was updated at .

English

Flash Flood Warning Issued September 18 At 10:44AM MDT Until September 18 At 1:45PM MDT By NWS Pocatello ID

Event
Flash Flood Warning
Issued
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Immediate
Severity
Severe
Certainty
Likely
Response
Avoid

Wireless alert

National Weather Service: A FLASH FLOOD WARNING is in effect for this area until 1:45 PM MDT. This is a dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order.

Description

Overview

FFWPIH The National Weather Service in Pocatello has issued a * Flash Flood Warning for... The Big Rock burn scar in... Southeastern Jefferson County in southeastern Idaho... South Central Madison County in southeastern Idaho... * Until 145 PM MDT. * At 1044 AM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Big Rock Burn Scar. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Already saturated and filled ditches and culverts could become quickly inundated. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow moving through the Big Rock burn scar. The debris flow can consist of rock, mud, vegetation and other loose materials.

Hazard

Life threatening flash flooding. Thunderstorms producing flash flooding in and around the Big Rock Burn Scar.

Source

Radar indicated.

Impacts

Life threatening flash flooding of areas in and around the Big Rock Burn Scar. * Some locations that will experience flash flooding include... Heise.

Instructions

This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Big Rock Burn Scar. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety.

Affected areas

  • Jefferson County, ID
  • Madison County, ID

Public contact

Issuer
NWS Pocatello ID

Spanish

Event
Flash Flood Warning
Onset
Message expires
Expected end
Category
Meteorological
Urgency
Immediate
Severity
Severe
Certainty
Likely
Response
Avoid

Wireless alert

Servicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 1:45 PM MDT. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.

Affected areas

  • Jefferson County, ID
  • Madison County, ID

Public contact

Issuer
NWS Pocatello ID

Message record

Received
Issue to receipt
~40s
CAP status
Actual
CAP message type
Alert
Lifecycle
New
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M2TPFSM1HA13JACE3BVD1W1S
Identifier
urn:oid:2.49.0.1.840.0.13e21ec0917b1becb6c910d8bc5f5f5febc7d9ae.001.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Pocatello ID
AWIPS ID
CAPPIH
NWWS sequence
nwws_processor.6582
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
AWIPSidentifierFFWPIH
WMOidentifierWGUS55 KPIH 181644
flashFloodDetectionRADAR INDICATED
flashFloodDamageThreatCONSIDERABLE
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.NEW.KPIH.FF.W.0013.260918T1644Z-260918T1945Z/
eventEndingTime2026-09-18T13:45:00-06:00
WEAHandlingImminent Threat
CMAMtextNWS: FLASH FLOOD WARNING this area til 1:45 PM MDT. Avoid flooded areas.
CMAMlongtextNational Weather Service: A FLASH FLOOD WARNING is in effect for this area until 1:45 PM MDT. This is a dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order.

Event codes

NameValue
SAMEFFW
NationalWeatherServiceFFW

Parameters

NameValue
AWIPSidentifierFFWPIH
WMOidentifierWGUS55 KPIH 181644
flashFloodDetectionRADAR INDICATED
flashFloodDamageThreatCONSIDERABLE
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.NEW.KPIH.FF.W.0013.260918T1644Z-260918T1945Z/
eventEndingTime2026-09-18T13:45:00-06:00
WEAHandlingImminent Threat
CMAMtextSNM: AVISO DE INUNDACIONES REPENTINAS hasta 1:45 PM MDT. Evite areas inundadas.
CMAMlongtextServicio Nacional de Meteorologia: AVISO DE INUNDACIONES REPENTINAS en efecto para esta area hasta las 1:45 PM MDT. Esta es una situacion peligrosa y amenaza la vida. No intente viajar a menos que sea para abandonar un area propensa a inundaciones o bajo una orden de desalojo.
Locations

Location data

  • Jefferson County, ID
  • Madison County, ID
NameValue
SAME016051
SAME016065
UGCIDC051
UGCIDC065
Polygons
43.66,-111.72 43.67,-111.73 43.68,-111.72 43.66,-111.7 43.66,-111.67 43.67,-111.65 43.65,-111.63 43.64,-111.64 43.64,-111.65 43.63,-111.66 43.63,-111.69 43.64,-111.69 43.65,-111.71 43.66,-111.72

Location data

  • Jefferson County, ID
  • Madison County, ID
NameValue
SAME016051
SAME016065
UGCIDC051
UGCIDC065
Polygons
43.66,-111.72 43.67,-111.73 43.68,-111.72 43.66,-111.7 43.66,-111.67 43.67,-111.65 43.65,-111.63 43.64,-111.64 43.64,-111.65 43.63,-111.66 43.63,-111.69 43.64,-111.69 43.65,-111.71 43.66,-111.72