Alert archive / Missouri / Tornado Warnings in 1998
Tornado Warning 23, NWS Springfield, MO
NWS Springfield, MO issued this tornado warning at May 21, 1998, 5:55 PM CDT for Texas County, Missouri. It was in force for 65 min. 5 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
- May 21, 1998, 5:55 PM CDT (22:55 UTC)
- Expired
- May 21, 1998, 7:00 PM CDT
- In force
- 65 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
County Texas County, MO
The radar
The Springfield radar (KSGF), 127 km from the middle of the area, began a volume at 22:57 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 |
|---|---|---|---|
| May 21, 6:05 PM CDT | Hail 4 | Evening Shade, MO | Large hail fell in mostly forrested areas. |
| May 21, 6:05 PM CDT | Hail 4.5 | Roby, MO | Large hail fell mostly in forrested areas. |
| May 21, 6:35 PM CDT | Hail 1 | Prescott, MO | |
| May 21, 6:40 PM CDT | Hail 1.75 | Houston, MO | |
| May 21, 6:50 PM CDT | Hail 1 | Raymondville, MO |
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 |
|---|---|---|---|
| May 21, 4:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.9 hours before the alert went out and 169 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
- 2242 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1149 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSGF 212304 COR TORSGF MOC215-220000- BULLETIN - EAS ACTIVATION REQUESTED...CORRECTION FOR UCG CODING ONLY TORNADO WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 555 PM CDT THU MAY 21 1998 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A * TORNADO WARNING FOR... TEXAS COUNTY IN SOUTH CENTRAL MISSOURI * UNTIL 700 PM CDT * AT 552 PM DOPPLER RADAR INDICATED A TORNADO 10 MILES NORTHWEST OF ROBY...OR 25 MILES NORTHWEST OF HOUSTON. THIS STORM WAS MOVING SOUTHEAST AT 30 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... ROBY...PLATO AND EVENING SHADE BY 610 PM SUCCESS BY 615 PM HOUSTON AREA BY 625 PM THIS IS A DANGEROUS SITUATION. MOVE QUICKLY TO A DESIGNATED SHELTER...BASEMENT...OR INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR BUILDING. MS/DTR
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 3:56 PM CDT | Severe Thunderstorm Warning | SGF | Benton, Camden, Morgan | 59 min |
| May 21, 4:20 PM CDT | Tornado Warning | SGF | Camden | 50 min |
| May 21, 4:49 PM CDT | Severe Thunderstorm Warning | SGF | Miller | 51 min |
| May 21, 5:09 PM CDT | Severe Thunderstorm Warning | SGF | Camden, Pulaski | 66 min |
| May 21, 6:53 PM CDT | Tornado Warning | SGF | Shannon | 62 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.