Nimbus

Hydrologic Outlook

NWS Anchorage AK ยท US

New

Details

Hydrologic Outlook issued September 15 at 3:20PM AKDT by NWS Anchorage AK

Issued
Onset
Expires
Category
Meteorological
Urgency
Future
Severity
Unknown
Certainty
Possible
Response
Monitor

Description

ESFAFC Locations: * Willow and Talkeetna * Rivers, creeks, and streams with headwaters along the western Talkeetna Mountains Timing: * Now through Wednesday (tomorrow) afternoon. Heaviest rainfall expected from now through about midnight tonight. Rainfall: * The heaviest rain is ongoing. However, an estimated 1.5 to 2 inches of rain have fallen along the Alaska Range and Talkeetna Mountains so far today, with about 0.5 to 1 inches in Susitna Valley. * Additional rainfall amounts of about 0.5 to 1.5 inches are forecast from now through tomorrow afternoon. * These rainfall totals likely won't be high enough for widespread flooding, but smaller tributaries draining the Talkeetnas including Willow Creek and the Little Susitna may reach bankfull. Hydrologic Concerns: * Many lower locations along rivers such as gravel bars and other spots popular for camping and recreating may become inundated with water with rivers reaching bankfull conditions. * Heavy rain may result in localized ponding in low-lying areas and locations with poor drainage. Next Steps: * Residents along area streams as well as river users and recreators should anticipate higher than normal water levels and are advised to monitor weather and river forecasts. * Send weather or flooding reports to inws.ncep.noaa.gov/report/ or by calling 1-907-266-5127. * Reports on river conditions may be sent to the river forecast center by calling 1-907-266-5160.

Affected areas

  • Lower Matanuska Valley
  • Hatcher Pass
  • Southern Susitna Valley
  • Central Susitna Valley

Public contact

Issuer
NWS Anchorage AK

Message record

Received
CAP status
Actual
CAP message type
Alert
Lifecycle
New
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M2KNXTAEWKXKZZDE2JB7HAG7
Identifier
urn:oid:2.49.0.1.840.0.96fe7d78b64e7847d4c0df8b8feae5e35565372b.001.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Anchorage AK
AWIPS ID
CAPAFC
NWWS sequence
nwws_processor.8716
WMO heading
XOAK58
WMO data type
CAP alert message XML (XO)
WMO geography
Alaska (AK)
WMO bulletin number
58

Event codes

NameValue
SAMENWS
NationalWeatherServiceESF

Parameters

NameValue
AWIPSidentifierESFAFC
WMOidentifierFGAK78 PAFC 152320
NWSheadlineSIGNIFICANT RAINFALL THROUGH TOMORROW AFTERNOON FOR THE MATANUSKA AND SUSITNA VALLEYS
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
BLOCKCHANNELCMAS
Locations

Location data

  • Lower Matanuska Valley
  • Hatcher Pass
  • Southern Susitna Valley
  • Central Susitna Valley
NameValue
SAME002170
UGCAKZ711
UGCAKZ712
UGCAKZ746
UGCAKZ747