Alert archive / Idaho / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 20, NWS Boise, ID
NWS Boise, ID issued this severe thunderstorm warning at Aug 24, 2017, 7:42 PM MDT for Ada County, Boise County, Elmore County, Idaho. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 24, 2017, 7:42 PM MDT (01:42 UTC)
- Expired
- Aug 24, 2017, 8:30 PM MDT
- In force
- 48 min
- Issued by
- NWS Boise, ID
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Ada County, ID, Boise County, ID, Elmore County, ID
The radar
The Boise radar (KCBX), 36 km from the middle of the area, began a volume at 01:46 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.
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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, 51 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, 21 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 6:51 PM MDT | Special Weather Statement | BOI | Ada | 39 min |
| Aug 24, 7:21 PM MDT | Special Weather Statement | BOI | Ada | 39 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 2017Every severe thunderstorm warning 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.