Alert archive / Idaho / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 22, NWS Spokane, WA
NWS Spokane, WA issued this severe thunderstorm warning at Jul 9, 1998, 8:49 PM PDT for Benewah County, Kootenai County, Shoshone County, Idaho. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 9, 1998, 8:49 PM PDT (03:49 UTC)
- Expired
- Jul 9, 1998, 9:35 PM PDT
- In force
- 46 min
- Issued by
- NWS Spokane, WA
- Area
- Whole counties
Counties Benewah County, ID, Kootenai County, ID, Shoshone County, ID
The radar
The Spokane radar (KOTX), 95 km from the middle of the area, began a volume at 03:51 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 9, 9:20 PM PDT | Thunderstorm Wind 52 | Cataldo, ID | 60 mph wind gust at 4th of July Pass. Highway 3 closed from Cataldo to Medimont due to downed trees. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 3.8 hours before the alert went out and 32 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
- 1161 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 2291 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Spokane, WA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 9, 7:30 PM PDT, 1 hour 19 minutes earlier.
Area forecast discussion, Jul 9, 7:30 PM PDT, 1 hour 19 minutes before
EASTERN WASHINGTON AND NORTH IDAHO AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPOKANE WASHINGTON 730 PM PDT THU JUL 9 1998 HAVE STRONG (AND ON SEVERE) THUNDERSTORM OVER IDZ003...AND WAZ032. WILL UPDATED WORDING THOSE ZONES FROM CHANCE TO SCATTERED. LOOKS LIKE WILL CONTINUE TO GET SOME ACTIVITY OVERNIGHT AS TROUGH MOVES ONSHORE. DRIFE ...PRODUCTS BELOW ARE PRELIMINARY AND SUBJECT TO CHANGE... ...PLEASE SEE SEACCFSEA AND ZONE FORECAST PRODUCTS... GEG 065/089/056/078 2344 CQV 063/092/056/080 2355 S86 061/085/053/074 3455 COE 063/088/054/077 3354 WWP 060/087/053/073 3455 LWS 069/093/062/082 3453 MOS 061/085/054/077 .GEG...NONE.
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 7:17 PM PDT | Severe Thunderstorm Warning | OTX | Latah, Nez Perce | 63 min |
| Jul 9, 8:29 PM PDT | Severe Thunderstorm Warning | OTX | Benewah, Latah | 66 min |
| Jul 9, 9:29 PM PDT | Severe Thunderstorm Warning | OTX | Kootenai, Shoshone | 46 min |
| Jul 10, 2:57 PM PDT | Severe Thunderstorm Warning | OTX | Boundary | 48 min |
Nearby
Severe Thunderstorm Warnings in Idaho, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.