Alert archive / Idaho / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 24, NWS Boise, ID
NWS Boise, ID issued this severe thunderstorm warning at Oct 16, 2012, 11:30 AM MDT for 4 counties in Idaho. It was in force for 45 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
- Oct 16, 2012, 11:30 AM MDT (17:30 UTC)
- Expired
- Oct 16, 2012, 12:15 PM MDT
- In force
- 45 min
- Issued by
- NWS Boise, ID
- Area
- Storm-based polygon
Counties Elmore County, ID, Gooding County, ID, Jerome County, ID, Twin Falls County, ID
The radar
The Boise radar (KCBX), 137 km from the middle of the area, began a volume at 17:32 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 nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 5.5 hours before the alert went out and 139 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 9 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 821 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 299 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Boise, ID wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 16, 9:49 AM MDT, 1 hour 41 minutes earlier.
Area forecast discussion, Oct 16, 9:49 AM MDT, 1 hour 41 minutes before
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</html>Hazardous weather outlook, Oct 16, 4:01 AM MDT, 7 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BOISE ID 401 AM MDT TUE OCT 16 2012 IDZ012-014>016-029-030-ORZ061>064-171000- LOWER TREASURE VALLEY ID-UPPER TREASURE VALLEY- SOUTHWEST HIGHLANDS-WESTERN MAGIC VALLEY-OWYHEE MOUNTAINS- SOUTHERN TWIN FALLS COUNTY-HARNEY COUNTY-BAKER COUNTY- MALHEUR COUNTY-LOWER TREASURE VALLEY OR- 401 AM MDT TUE OCT 16 2012 /301 AM PDT TUE OCT 16 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL IDAHO...SOUTHWEST IDAHO...NORTHEAST OREGON AND SOUTHEAST OREGON. .DAY ONE...TODAY AND TONIGHT VERY WINDY CONDITIONS WILL DEVELOP ACROSS SOUTHEAST OREGON TODAY AND SPREAD THROUGH THE SNAKE RIVER PLAIN TO THE NEVADA BORDER THIS AFTERNOON. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT HAZARDOUS WEATHER VIA ESTABLISHED CHANNELS OF COMMUNICATION. IDZ011-013-171000- WEST CENTRAL MOUNTAINS-BOISE MOUNTAINS- 401 AM MDT TUE OCT 16 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL IDAHO. .DAY ONE...TODAY AND TONIGHT MODERATE RAIN IS EXPECTED ACROSS A WIDE AREA THIS MORNING INCLUDING OVER BURN SCARS SUCH AS THE SPRINGS FIRE AND TRINITY RIDGE COMPLEX. THERE IS A SLIGHT CHANCE OF THUNDERSTORMS WHICH WOULD BRING A BRIEF PERIOD OF HEAVY RAIN WHICH IF IT CROSSED A BURN SCAR COULD RESULT IN MUD SLIDES OR DEBRIS FLOWS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT HAZARDOUS WEATHER VIA ESTABLISHED CHANNELS OF COMMUNICATION. IDZ028-033-171000- CAMAS PRAIRIE-UPPER WEISER RIVER- 401 AM MDT TUE OCT 16 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST IDAHO AND WEST CENTRAL IDAHO. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT HAZARDOUS WEATHER VIA ESTABLISHED CHANNELS OF COMMUNICATION.
In the hours before
Special weather statement, Oct 16, 10:07 AM MDT, 1 hour 23 minutes before
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</html>Local storm report, Oct 16, 10:39 AM MDT, 51 minutes before
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</html>Special weather statement, Oct 16, 11:16 AM MDT, 14 minutes before
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</html>The office that day
Everything else NWS Boise, ID issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 9:00 AM MDT | Flash Flood Watch | BOI | Boise, Camas, Elmore | 5 hr |
| Oct 16, 9:24 AM MDT | Flash Flood Warning | BOI | Boise, Valley | 3 hr |
| Oct 16, 10:07 AM MDT | Special Weather Statement | BOI | Ada, Canyon, Elmore | 53 min |
| Oct 16, 10:17 AM MDT | Flash Flood Warning | BOI | Boise, Elmore | 3 hr |
| Oct 16, 11:16 AM MDT | Special Weather Statement | BOI | Gooding, Jerome, Owyhee | 59 min |
| Oct 16, 12:20 PM MDT | Special Weather Statement | BOI | Jerome, Twin Falls | 55 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 2012Every severe thunderstorm warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.