Alert archive / Missouri / Tornado Warnings in 1998
Tornado Warning 2, NWS Springfield, MO
NWS Springfield, MO issued this tornado warning at Apr 13, 1998, 6:15 PM CDT for Oregon County, Missouri. It was in force for 35 min. 2 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
- Apr 13, 1998, 6:15 PM CDT (23:15 UTC)
- Expired
- Apr 13, 1998, 6:50 PM CDT
- In force
- 35 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
County Oregon County, MO
The radar
The Springfield radar (KSGF), 188 km from the middle of the area, began a volume at 23:19 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 |
|---|---|---|---|
| Apr 13, 6:15 PM CDT | Hail 1.75 | Riverton, MO | Hail fell in forested area. |
| Apr 13, 6:40 PM CDT | Hail 1 | Calm, MO | Hail accumulated to a depth of 3 inches along Highway U, between Highways 160 and 142. |
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 |
|---|---|---|---|
| Apr 13, 1:45 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.3 hours before the alert went out and 215 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
- 804 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 407 m²/s²
- 0-3 km storm-relative helicity
- 400 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
902 WFUS1 KSGF 132316 RRA TORSGF MOC149-132350- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 615 PM CDT MON APR 13 1998 * TORNADO WARNING FOR OREGON COUNTY - SOUTH CENTRAL MISSOURI * UNTIL 650 PM CDT * SOME AREAS AFFECTED BILLMORE AND MANY SPRINGS BY 620 PM CALM AND RIVERTON BY 625 PM * AT 615 PM SPRINGFIELD DOPPLER RADAR INDICATED A DEVELOPING TORNADO 10 MILES SOUTHEAST OF ALTON OR 3 MILES SOUTHEAST OF COUCH. THIS STORM WAS MOVING EAST AT 30 MPH. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IN A HOME OR BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS.
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 1:39 PM CDT | Severe Thunderstorm Warning | SGF | Phelps, Pulaski | 66 min |
| Apr 13, 2:45 PM CDT | Severe Thunderstorm Warning | SGF | Phelps | 35 min |
| Apr 13, 4:22 PM CDT | Severe Thunderstorm Warning | SGF | Dent | 33 min |
| Apr 13, 5:59 PM CDT | Severe Thunderstorm Warning | SGF | Oregon | 51 min |
Nearby
Tornado Warnings in Missouri, 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.