Alert archive / Idaho / Special Weather Statements in 2017

Special Weather Statement, NWS Boise, ID

August 24, 2017Ada County, Idaho

NWS Boise, ID issued this special weather statement at Aug 24, 2017, 7:21 PM MDT for Ada County, Idaho. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 24, 2017, 7:21 PM MDT (01:21 UTC)
Expired
Aug 24, 2017, 8:00 PM MDT
In force
39 min
Issued by
NWS Boise, ID

County Ada County, ID

The radar

The Boise radar (KCBX), 3 km from the middle of the area, began a volume at 01:24 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 text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 24, 6:51 PM MDT, 30 minutes before
Special Weather Statement
National Weather Service Boise ID
651 PM MDT THU AUG 24 2017

IDZ012-014-250130-
Upper Treasure Valley ID-Lower Treasure Valley ID-
651 PM MDT THU AUG 24 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN ADA...SOUTHEASTERN
CANYON AND NORTHWESTERN OWYHEE COUNTIES UNTIL 730 PM MDT...

At 650 PM MDT, Doppler radar was tracking a strong thunderstorm over
Walters Ferry, or 16 miles south of Nampa, moving northeast at 20
mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Melba around 700 PM MDT.
  Swan Falls and Lake Lowell around 710 PM MDT.
  Initial Point around 720 PM MDT.
  Nampa and Kuna around 730 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

When safe to do so, please relay storm reports to the National
Weather Service in Boise via local law enforcement, or National
Weather Service Boise Facebook and Twitter accounts.

&&

LAT...LON 4317 11651 4341 11686 4361 11663 4335 11618
TIME...MOT...LOC 0050Z 232DEG 17KT 4334 11662

BW
Special weather statement, Aug 24, 7:21 PM MDT, 0 minutes before
Special Weather Statement
National Weather Service Boise ID
721 PM MDT THU AUG 24 2017

IDZ012>014-250200-
Upper Treasure Valley ID-Lower Treasure Valley ID-Boise Mountains ID-
721 PM MDT THU AUG 24 2017

...SIGNIFICANT WEATHER ADVISORY FOR ADA...SOUTHWESTERN BOISE...WEST
CENTRAL ELMORE...SOUTHEASTERN CANYON...NORTHWESTERN OWYHEE AND SOUTH
CENTRAL GEM COUNTIES UNTIL 800 PM MDT...

At 720 PM MDT, Doppler radar was tracking a strong thunderstorm near
Kuna, or 7 miles southwest of Boise, moving northeast at 50 mph.

Half inch hail and wind gusts up to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Boise, Garden City, Lucky Peak Dam and Boise Stage Stop around 730
  PM MDT.
  Aldape Summit, Hidden Springs, Lucky Peak Reservoir and Lucky Peak
  Spring Shores Marina around 740 PM MDT.
  Horseshoe Bend, Gardena, Bogus Basin Ski Area and Arrowrock
  Reservoir around 750 PM MDT.
  Harris Creek Summit and Twin Springs around 800 PM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

When safe to do so, please relay storm reports to the National
Weather Service in Boise via local law enforcement, or National
Weather Service Boise Facebook and Twitter accounts.

&&

LAT...LON 4316 11639 4348 11684 4402 11617 4360 11559
TIME...MOT...LOC 0120Z 224DEG 42KT 4354 11636

BW

The office that day

Everything else NWS Boise, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 24, 6:51 PM MDTSpecial Weather StatementBOIAda39 min
Aug 24, 7:42 PM MDTSevere Thunderstorm WarningBOIAda, Boise, Elmore48 min

Nearby

Special Weather Statements in Idaho, 2017Every special weather statement in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.