Alert archive / Missouri / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 4, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Jan 17, 1999, 2:31 PM CST for Oregon County, Shannon County, Missouri. It was in force for 49 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
- Jan 17, 1999, 2:31 PM CST (20:31 UTC)
- Expired
- Jan 17, 1999, 3:20 PM CST
- In force
- 49 min
- Issued by
- NWS Springfield, MO
- Area
- Whole counties
Counties Oregon County, MO, Shannon County, MO
The radar
The Springfield radar (KSGF), 181 km from the middle of the area, began a volume at 20:33 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 |
|---|---|---|---|
| Jan 17, 3:15 PM CST | Thunderstorm Wind | Winona, MO | |
| Jan 17, 3:30 PM CST | Thunderstorm Wind | Countywide, 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 nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.5 hours before the alert went out and 213 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
- 702 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 350 m²/s²
- 0-3 km storm-relative helicity
- 360 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
999 WUUS1 KSGF 172033 RRA SVRSGF MOC149-203-172120- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SPRINGFIELD MO 231 PM CST SUN JAN 17 1999 THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... OREGON COUNTY IN SOUTH CENTRAL MISSOURI SHANNON COUNTY IN SOUTH CENTRAL MISSOURI * UNTIL 320 PM CST * AT 230 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL THE SIZE OF NICKELS. THIS STORM WAS LOCATED FROM MOUNTAIN VIEW TO 10 MILES EAST OF WEST PLAINS AND WAS MOVING EAST NORTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM(S) WILL BE NEAR... THOMASVILLE AND BIRCH TREE THROUGH 245 PM WINONA AND GREER BY 255 PM A SEVERE THUNDERSTORM WARNING MEANS THAT DAMAGING WINDS AND/OR LARGE HAIL CAN BE EXPECTED. SEEK SHELTER NOW AND REMAIN PROTECTED UNTIL THE STORM HAS PASSED. TAGGART/SUTTON
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 Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 17, 12:17 PM CST, 2 hours 14 minutes earlier.
Area forecast discussion, Jan 17, 12:17 PM CST, 2 hours 14 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE SPRINGFIELD MO 1217 PM CST SUN JAN 17 1999 UPDATED FOR TEMPS AND PRECIP TRENDS. JUST SENT UPDATED SET OF ZNS. HAD TO BUMP TEMPS UP ACRS ERN ZNS. ALSO INTRODUCED SOME THUNDER OVR SRN ZNS. LATEST LIGHTNING AND 88D DATA INDCG THUNDERSTORMS DVLPG ALONG THE AR/MO BORDER. ACTIVITY ASSOCD WITH UPR SYS APCHG THE AREA FM OKLAHOMA. ALSO RAISED POPS IN OTHER AREAS AS WELL BASED ON RADAR TRENDS. RICKARD
In the hours before
Special weather statement, Jan 17, 1:00 PM CST, 1 hour 31 minutes before
STLWRKHWO NOT FOUND
Special weather statement, Jan 17, 1:00 PM CST, 1 hour 31 minutes before
STLWRKHWO NOT FOUND
The office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 17, 12:50 PM CST | Severe Thunderstorm Warning | SGF | Ozark | 45 min |
| Jan 17, 1:33 PM CST | Severe Thunderstorm Warning | SGF | Douglas, Ozark | 52 min |
| Jan 17, 1:52 PM CST | Severe Thunderstorm Warning | SGF | Howell | 48 min |
| Jan 17, 3:18 PM CST | Severe Thunderstorm Warning | SGF | Oregon | 17 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1999Every severe thunderstorm warning in 1999
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.