Alert archive / Missouri / Tornado Warnings in 1997
Tornado Warning 20, NWS Springfield, MO
NWS Springfield, MO issued this tornado warning at Jul 3, 1997, 8:19 PM CDT for Shannon County, Missouri. It was in force for 51 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
- Jul 3, 1997, 8:19 PM CDT (01:19 UTC)
- Expired
- Jul 3, 1997, 9:10 PM CDT
- In force
- 51 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
County Shannon County, MO
The radar
The Springfield radar (KSGF), 177 km from the middle of the area, began a volume at 01:22 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 3, 8:50 PM CDT | Hail 1 | Eminence, MO | |
| Jul 3, 9:00 PM CDT | Thunderstorm Wind | Eminence, MO | Thunderstorm winds downed a few trees near the Powder Mill Ferry Ranger Station. |
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 3, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.3 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
- 3487 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 1249 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 7.2
The text
As transmitted, in the capitals the NWS used until 2016.
142 WFUS1 KSGF 040121 RRA TORSGF MOC203-040210- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 819 PM CDT THU JUL 3 1997 * TORNADO WARNING FOR SHANNON COUNTY - SOUTH CENTRAL MISSOURI * UNTIL 910 PM CDT * SOME AREAS AFFECTED ROUND SPRING EMINENCE * AT 818 PM SPRINGFIELD DOPPLER RADAR INDICATED A TORNADO NEAR ROUND SPRING. THIS STORM WAS MOVING EAST AT 30 MPH. MOVE INDOORS TO A PLACE OF SAFETY AT ONCE STAY AWAY FROM WINDOWS RIDDLE
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 8:14 PM CDT | Severe Thunderstorm Warning | SGF | Shannon | 51 min |
| Jul 3, 9:24 PM CDT | Severe Thunderstorm Warning | SGF | Benton, St. Clair | 51 min |
| Jul 3, 10:29 PM CDT | Severe Thunderstorm Warning | SGF | Vernon | 66 min |
| Jul 3, 11:00 PM CDT | Severe Thunderstorm Warning | SGF | Cedar | 60 min |
| Jul 4, 1:36 AM CDT | Severe Thunderstorm Warning | SGF | Dent, Shannon | 39 min |
Nearby
Tornado Warnings in Missouri, 1997Every tornado warning in 1997Tornadoes in 1997
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.