Alert archive / Idaho / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 16, NWS Missoula, MT
NWS Missoula, MT issued this severe thunderstorm warning at Jul 3, 1998, 12:36 PM PDT for Idaho County, Idaho. It was in force for 49 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
- Jul 3, 1998, 12:36 PM PDT (19:36 UTC)
- Expired
- Jul 3, 1998, 1:25 PM PDT
- In force
- 49 min
- Issued by
- NWS Missoula, MT
- Area
- Whole counties
County Idaho County, ID
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 3, 12:00 PM PDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Spokane, WA (KOTX), launched 12:00Z, 7.6 hours before the alert went out and 218 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSO 031941 RRA SVRMSO IDC049-032025- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MISSOULA MT 136 PM MDT (1236 PM PDT) FRI JUL 3 1998 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL IDAHO COUNTY IN CENTRAL IDAHO * UNTIL 125 PM PDT (225 PM MDT) * AT 1237 PM PDT...SEVERE THUNDERSTORM INDICATED 10 MILES NORTHWEST OF DIXIE...BY NATIONAL WEATHER SERVICE DOPPLER RADAR... MOvVING NORTHEAST AT 15 MPH. * SEVERE THUNDERSTORM WILL BE NEAR... ELK CITY AT 1 PM PDT
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 Missoula, MT wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 3, 8:15 AM PDT, 4 hours 21 minutes earlier.
Area forecast discussion, Jul 3, 8:15 AM PDT, 4 hours 21 minutes before
WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 915 AM MDT FRI JUL 3 1998 SATELLITE INDICATING TSTMS OCCURRING IN CENTRAL IDAHO AND EXTREME WESTERN MONTANA ATTM. THIS ACTIVITY WAS MOVING NORTH INTO NORTHWEST MONTANA. WILL MAKE WORDING CHANGES TO INCLUDE TSTMS ALL DAY INSTEAD OF JUST THE AFTN FOR ALL ZONES...EXCEPT IDAHO ZONES 9 AND 10. WILL INCLUDE HAIL AND GUSTY WINDS AS WELL. MODELS HAVE GOOD 700/300MB CONVERGENT/ DIVERGENT COUPLET OVER THE AREA TODAY. WITH STRONG VALUES OF CAPE...HIGH VALUES OF THETA-E AND SHEAR FORECASTED BY MODELS THINK SPC FORECAST OF SLIGHT SEVERE STILL LOOKS REASONABLE. PLAN ON UPDATE TO ZONES. HARMER ...FORECASTS BELOW ARE PRELIMINARY AND SUBJECT TO CHANGE... LIB .. 080/059 075/... ... 32676 FCA WW 077/059 073/055 075 32676 POL .. 077/062 072/... ... 32675 MSO WE 083/058 078/054 080 32565 HMM .. 085/061 080/... ... 32564 BTM .. 080/052 075/... ... 32343 S80 .. 082/058 078/... ... 32675 P69 .. 080/061 075/... ... 32676 SMN .. 080/054 075/... ... 32533
The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 6:24 PM PDT | Severe Thunderstorm Warning | MSO | Idaho | 46 min |
| Jul 2, 6:40 PM PDT | Severe Thunderstorm Warning | MSO | Idaho | 50 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; the sounding from the Mesonet's radiosonde archive.