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IEM VTEC Product Browser

This application allows easy navigation of National Weather Service issued products with Valid Time Event Coding (VTEC).

13 Nov 2024 Update: The tool was updated to use non-hash link style URLs. A shim is in place to translate the old URLs to the new ones, so nothing should be broken (famous last words). This was done to allow the HTML5 History API to provide a better user experience.

Tab Functionality:
Above this section, you will notice six selectable tabs. Click on the tab to show the information.

  • Help: This page!
  • Event Info: Details of the selected event.
  • Text Data: The raw text product for this event.
  • Interactive Map: An interactive map showing the event and RADAR.
  • Storm Reports: Local Storm Reports.
  • List Events: List all events of the given phenomena, significance, year, and issuing office.

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This application is fully driven by IEM web services.

2025 [KBOI] BOISE Dense Fog (FG) Advisory (Y) Number 4

Listing of Counties/Parishes/Zones Included in Product

RADAR Composite at Issuance Time

Storm Based Warning History

924 
WWUS75 KBOI 200951
NPWBOI

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
251 AM MST Thu Feb 20 2025

IDZ016-030-201400-
/O.NEW.KBOI.FG.Y.0004.250220T0951Z-250220T1400Z/
Western Magic Valley-Southern Twin Falls County-
Including the cities of Rogerson, Hollister, Jerome, and Twin
Falls
251 AM MST Thu Feb 20 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM MST THIS MORNING...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Southern Twin Falls County and Western Magic Valley.

* WHEN...Until 7 AM MST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

JB
180 
WWUS75 KBOI 201344
NPWBOI

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
644 AM MST Thu Feb 20 2025

IDZ016-030-201445-
/O.EXP.KBOI.FG.Y.0004.000000T0000Z-250220T1400Z/
Western Magic Valley-Southern Twin Falls County-
Including the cities of Rogerson, Hollister, Jerome, and Twin
Falls
644 AM MST Thu Feb 20 2025

...DENSE FOG ADVISORY WILL EXPIRE AT 7 AM MST THIS MORNING...

Areas of patchy fog still exist. Use caution if traveling this 
morning.

$$

JR
Permalink to 202502200951-KBOI-WWUS75-NPWBOI
924 
WWUS75 KBOI 200951
NPWBOI

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
251 AM MST Thu Feb 20 2025

IDZ016-030-201400-
/O.NEW.KBOI.FG.Y.0004.250220T0951Z-250220T1400Z/
Western Magic Valley-Southern Twin Falls County-
Including the cities of Rogerson, Hollister, Jerome, and Twin
Falls
251 AM MST Thu Feb 20 2025

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM MST THIS MORNING...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Southern Twin Falls County and Western Magic Valley.

* WHEN...Until 7 AM MST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of 
distance ahead of you.

&&

$$

JB
Permalink to 202502201344-KBOI-WWUS75-NPWBOI
180 
WWUS75 KBOI 201344
NPWBOI

URGENT - WEATHER MESSAGE
National Weather Service Boise ID
644 AM MST Thu Feb 20 2025

IDZ016-030-201445-
/O.EXP.KBOI.FG.Y.0004.000000T0000Z-250220T1400Z/
Western Magic Valley-Southern Twin Falls County-
Including the cities of Rogerson, Hollister, Jerome, and Twin
Falls
644 AM MST Thu Feb 20 2025

...DENSE FOG ADVISORY WILL EXPIRE AT 7 AM MST THIS MORNING...

Areas of patchy fog still exist. Use caution if traveling this 
morning.

$$

JR

All Storm Reports within Event Political Coverage

Storm Reports within Product Polygon

This table lists other events issued by the selected office for the selected year. Click on the row to select that event.