Alert archive / Washington / Tornado Warnings in 1998
Tornado Warning 4, NWS Spokane, WA
NWS Spokane, WA issued this tornado warning at Jul 10, 1998, 9:11 PM PDT for Adams County, Washington. It was in force for 64 min. 3 reports 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 10, 1998, 9:11 PM PDT (04:11 UTC)
- Expired
- Jul 10, 1998, 10:15 PM PDT
- In force
- 64 min
- Issued by
- NWS Spokane, WA
- Area
- Whole counties
County Adams County, WA
The radar
The Spokane radar (KOTX), 105 km from the middle of the area, began a volume at 04:13 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 10, 9:15 PM PDT | Hail 1.75 | Lind, WA | 1.75 inch diameter hail |
| Jul 10, 9:25 PM PDT | Thunderstorm Wind | Othello, WA | trees down and power lines down along with widespread damage to nearby wheat fields. |
| Jul 10, 9:55 PM PDT | Hail 1.75 | Lind, WA | 1.75 inch diameter hail |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 10, 5:15 PM PDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 10, 9:00 PM PDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Spokane, WA (KOTX), launched 00:00Z, 4.2 hours before the alert went out and 181 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
- 199 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1962 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
966 WFUS1 KGEG 110410 RRA TORGEG WAC001-110515- BULLETIN - IMMEDIATE BROADCAST REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SPOKANE WA 911 PM PDT FRI JUL 10 1998 THE NATIONAL WEATHER SERVICE IN SPOKANE HAS ISSUED A * TORNADO WARNING FOR... ADAMS COUNTY IN SOUTHEASTERN WASHINGTON * UNTIL 1015 PM PDT * AT 910 PM PDT... SEVERE WEATHER 29 MILES SOUTHWEST OF RITZVILLE OR 13 MILES SOUTHWEST OF LIND... WAS REPORTED BY POLICE... MOVING NORTH 20 MPH. * TORNADO WILL BE NEAR... LIND BY 945 PM PDT GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR BA/MS/DR
The office that day
Everything else NWS Spokane, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:23 PM PDT | Severe Thunderstorm Warning | OTX | Asotin | 62 min |
| Jul 10, 7:41 PM PDT | Severe Thunderstorm Warning | OTX | Grant | 64 min |
| Jul 10, 7:56 PM PDT | Severe Thunderstorm Warning | OTX | Adams | 64 min |
| Jul 10, 8:40 PM PDT | Severe Thunderstorm Warning | OTX | Lincoln | 65 min |
| Jul 10, 8:47 PM PDT | Severe Thunderstorm Warning | OTX | Grant | 48 min |
| Jul 10, 9:19 PM PDT | Severe Thunderstorm Warning | OTX | Ferry, Okanogan | 61 min |
| Jul 10, 9:33 PM PDT | Severe Thunderstorm Warning | OTX | Lincoln, Spokane | 62 min |
| Jul 10, 10:32 PM PDT | Severe Thunderstorm Warning | OTX | Lincoln, Spokane, Stevens | 63 min |
| Jul 10, 11:12 PM PDT | Tornado Warning | OTX | Spokane | 48 min |
| Jul 10, 11:33 PM PDT | Severe Thunderstorm Warning | OTX | Pend Oreille, Spokane | 67 min |
| Jul 11, 12:00 AM PDT | Tornado Warning | OTX | Pend Oreille, Spokane | 60 min |
Nearby
Tornado Warnings in Washington, 1998Every tornado warning in 1998Tornadoes 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.