Alert archive / Missouri / Tornado Warnings in 1998

Tornado Warning 99, NWS St. Louis, MO

November 10, 1998Osage County, Missouri

NWS St. Louis, MO issued this tornado warning at Nov 10, 1998, 12:47 AM CST for Osage County, Missouri. It was in force for 48 min. 1 report 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: Nov 10, 1998, 12:47 AM CST (06:47 UTC)
Expired: Nov 10, 1998, 1:35 AM CST
In force: 48 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County Osage County, MO

The radar

The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 06:46 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
Nov 10, 1:34 AM CST	Thunderstorm Wind 52	Linn, 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
Nov 9, 11:00 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.8 hours before the alert went out and 243 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 16 J/kg
Mixed-layer CIN: -341 J/kg
Mixed-layer LCL: 524 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 505 m²/s²
0-3 km storm-relative helicity: 565 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

772 
WFUS1 KSTL 100649 RRA
TORSTL
MOC151-100735-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1247 AM CST TUE NOV 10 1998

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* TORNADO WARNING FOR...
  OSAGE COUNTY IN CENTRAL MISSOURI

* UNTIL 135 AM CST

* AT 1245 AM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 5 MILES NORTHEAST OF META... MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IN THE PATH...
  RICH FOUNTAIN
  LINN



IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER NOW A
BASEMENT OFFERS THE BEST PROTECTION. IF NOT AVAILABLE...MOVE TO
THE LOWEST FLOOR AND SEEK SHELTER IN A SMALL INTERIOR ROOM. STAY
AWAY FROM OUTSIDE WALLS AND WINDOWS. MOBILE HOMES SHOULD BE
ABANDONED IN FAVOR OF A MORE SUBSTANTIAL STRUCTURE. DO NOT TRY TO
OUTRUN A TORNADO IN A VEHICLE

GKS/FG

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 10, 12:29 AM CST	Severe Thunderstorm Warning	LSX	Osage	51 min
Nov 10, 1:06 AM CST	Severe Thunderstorm Warning	LSX	Montgomery	49 min
Nov 10, 1:16 AM CST	Severe Thunderstorm Warning	LSX	Lincoln, Pike	49 min
Nov 10, 1:25 AM CST	Tornado Warning	LSX	Lincoln, Pike	50 min
Nov 10, 1:45 AM CST	Severe Thunderstorm Warning	LSX	Boone, Cole, Moniteau	65 min
Nov 10, 2:03 AM CST	Severe Thunderstorm Warning	LSX	Callaway, Osage	62 min
Nov 10, 2:03 AM CST	Severe Thunderstorm Warning	LSX	Audrain	62 min
Nov 10, 2:33 AM CST	Severe Thunderstorm Warning	LSX	Gasconade, Montgomery	62 min
Nov 10, 2:47 AM CST	Severe Thunderstorm Warning	LSX	Pike	63 min
Nov 10, 3:00 AM CST	Severe Thunderstorm Warning	LSX	Crawford, Franklin	65 min
Nov 10, 3:00 AM CST	Severe Thunderstorm Warning	LSX	Marion, Ralls	65 min
Nov 10, 3:00 AM CST	Severe Thunderstorm Warning	LSX	Lincoln, Pike	65 min
Nov 10, 3:00 AM CST	Severe Thunderstorm Warning	LSX	Warren	65 min
Nov 10, 3:29 AM CST	Severe Thunderstorm Warning	LSX	Jefferson, Saint Charles, Saint Louis, City of Saint Louis	61 min
Nov 10, 3:29 AM CST	Severe Thunderstorm Warning	LSX	Washington	61 min

Nearby

Tornado Warnings in Missouri, 1998 Every tornado warning in 1998 Tornadoes 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.