Alert archive / Idaho / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 883
The Storm Prediction Center issued this severe thunderstorm watch at Aug 22, 2003, 4:15 PM MDT for 15 counties in Idaho. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 22, 2003, 4:15 PM MDT (22:15 UTC)
- Expired
- Aug 22, 2003, 9:00 PM MDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
Counties Ada County, ID, Blaine County, ID, Boise County, ID, Butte County, ID, Camas County, ID, Custer County, ID, Elmore County, ID, Gem County, ID, Gooding County, ID, Jerome County, ID, Lincoln County, ID, Minidoka County, ID, Owyhee County, ID, Power County, ID, Twin Falls County, ID
The radar
The Boise radar (KCBX), 102 km from the middle of the area, began a volume at 22:14 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.
Warnings issued inside it
16 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 4:16 PM MDT | Severe Thunderstorm Warning | BOI | Ada, Canyon, Owyhee | 59 min |
| Aug 22, 4:26 PM MDT | Flash Flood Warning | BOI | Owyhee | 64 min |
| Aug 22, 4:37 PM MDT | Severe Thunderstorm Warning | PIH | Bannock, Bingham, Power | 53 min |
| Aug 22, 4:55 PM MDT | Flash Flood Warning | PIH | Bannock, Bingham, Caribou, Power | 2 hr |
| Aug 22, 5:10 PM MDT | Severe Thunderstorm Warning | BOI | Boise, Elmore, Owyhee | 65 min |
| Aug 22, 5:30 PM MDT | Flash Flood Warning | BOI | Boise, Elmore | 90 min |
| Aug 22, 6:16 PM MDT | Severe Thunderstorm Warning | BOI | Boise, Camas, Elmore, Gooding, Jerome, Owyhee and 1 more | 74 min |
| Aug 22, 6:55 PM MDT | Flash Flood Warning | BOI | Boise, Elmore | 65 min |
| Aug 22, 7:04 PM MDT | Severe Thunderstorm Warning | PIH | Blaine, Lincoln | 56 min |
| Aug 22, 7:12 PM MDT | Severe Thunderstorm Warning | PIH | Cassia, Minidoka | 63 min |
| Aug 22, 7:25 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 65 min |
| Aug 22, 7:30 PM MDT | Flash Flood Warning | PIH | Blaine, Butte, Custer | 2 hr |
| Aug 22, 7:31 PM MDT | Severe Thunderstorm Warning | BOI | Camas, Gooding, Jerome, Twin Falls | 29 min |
| Aug 22, 7:52 PM MDT | Severe Thunderstorm Warning | PIH | Bingham, Blaine, Butte, Cassia, Minidoka, Power | 53 min |
| Aug 22, 8:32 PM MDT | Severe Thunderstorm Warning | PIH | Custer | 58 min |
| Aug 22, 8:40 PM MDT | Severe Thunderstorm Warning | PIH | Butte, Clark | 50 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 10.3 hours before the alert went out and 98 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
- 17 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 1664 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 12:41 PM MDT | Mesoscale Discussion | SPC | Owyhee | 2 hr |
| Aug 22, 1:55 PM MDT | Severe Thunderstorm Watch | SPC | Twin Falls | 6 hr |
| Aug 22, 2:44 PM MDT | Mesoscale Discussion | SPC | Bear Lake, Franklin, Oneida | 2 hr |
| Aug 22, 3:50 PM MDT | Mesoscale Discussion | SPC | Ada, Bannock, Bear Lake, Bingham, Blaine, Boise and 18 more | 2 hr |
| Aug 22, 5:50 PM MDT | Mesoscale Discussion | SPC | Blaine, Boise, Butte, Camas, Custer, Elmore and 5 more | 55 min |
Nearby
Severe Thunderstorm Watches in Idaho, 2003Every severe thunderstorm watch in 2003
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.