Alert archive / Missouri / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 109, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 13, 1997, 6:39 PM CDT for Madison County, Saint Francois County, Missouri. It was in force for 51 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
- Jun 13, 1997, 6:39 PM CDT (23:39 UTC)
- Expired
- Jun 13, 1997, 7:30 PM CDT
- In force
- 51 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Madison County, MO, Saint Francois County, MO
The radar
The St Louis radar (KLSX), 120 km from the middle of the area, began a volume at 23:47 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 |
|---|---|---|---|
| Jun 13, 6:45 PM CDT | Thunderstorm Wind 56 | Fredericktown, MO | County sheriff reported some minor wind damage at the Fredricktown airport. |
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, 11.7 hours before the alert went out and 311 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
- 39 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 509 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -200 m²/s²
- 0-3 km storm-relative helicity
- -156 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 132341 SVRSTL MOC187-123-140030- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 639 PM CDT FRI JUN 13 1997 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 730 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSOURI ...ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI ...MADISON COUNTY AT 638 PM...RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE TOWN OF KNOB LICK. THE STORM WAS MOVING EAST AT 20 MPH. THE STORM WILL MOVE THROUGH THE TOWNS ROSELLE...KNOB LICK...AND FREDERICKTOWN BY 715 PM. THIS IS A DANGEROUS STORM! BE PREPARED FOR DAMAGING WINDS...HAIL AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS. ECKBERG
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.
In the hours before
Special weather statement, Jun 13, 5:27 PM CDT, 1 hour 12 minutes before
MOZ075-074-132245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 525 PM CDT FRI JUN 13 1997 ...TORNADO WARNING CONTINUES FOR ST FRANCOIS COUNTY UNTIL 545 PM... RADAR INDICATED A SEVERE STORM NEAR FARMINGTON AND WAS MOVING EAST AT 20 MPH. NUMEROUS REPORTS OF FUNNEL CLOUDS HAVE BEEN RECEIVED... BUT NO CONFIRM TORNADO TOUCHDOWN YET. THE STORM MAY STILL PRODUCE A TORNADO AT ANYTIME. PEOPLE IN THE PATH OF THIS STORM SHOULD TAKE COVER IMMEDIATELY! & ECKBERG
Special weather statement, Jun 13, 6:07 PM CDT, 32 minutes before
MOZ041-042-047>051-059-140100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 555 PM CDT FRI JUN 13 1997 ...NUMEROUS REPORTS OF FUNNEL CLOUDS OVER CENTRAL MISSOURI... THERE HAVE BEEN NUMEROUS REPORTS OF FUNNEL CLOUDS OVER PARTS OF CENTRAL MISSOURI...ESPECIALLY IN THE COLUMBIA AND JEFFERSON CITY AREA. AT 555 PM THE NATIONAL WEATHER SERVICE DID NOT INDICATE ANY THUNDERSTORMS IN CENTRAL MISSOURI...BUT THERE WERE NUMEROUS SHOWERS. THE FUNNEL CLOUDS WERE BELIEVED TO BE CAUSED BY A COMBINATION OF THE SHOWERS IN THE AREA AND AN UPPER LEVEL LOW PRESSURE SYSTEM MOVING ACROSS CENTRAL MISSOURI. THESE TYPE OF FUNNEL CLOUDS ARE SIMILAR TO COLD AIR FUNNELS...WHICH RARELY REACH THE GROUND. HOWEVER...PEOPLE IN CENTRAL MISSOURI SHOULD KEEP AN EYE ON THE SKY. IF YOU SEE ONE OF THESE FUNNEL CLOUDS NEARBY MOVE INDOORS. EVEN THOUGH THESE FUNNEL CLOUDS RARELY TOUCHDOWN...IF ONE DOES IT COULD CAUSE SOME DAMAGE. DLF
Special weather statement, Jun 13, 6:10 PM CDT, 29 minutes before
MOZ041-042-047>051-059-140100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 555 PM CDT FRI JUN 13 1997 ...NUMEROUS REPORTS OF FUNNEL CLOUDS OVER CENTRAL MISSOURI... THERE HAVE BEEN NUMEROUS REPORTS OF FUNNEL CLOUDS OVER PARTS OF CENTRAL MISSOURI...ESPECIALLY IN THE COLUMBIA AND JEFFERSON CITY AREA. AT 555 PM THE NATIONAL WEATHER SERVICE DID NOT INDICATE ANY THUNDERSTORMS IN CENTRAL MISSOURI...BUT THERE WERE NUMEROUS SHOWERS. THE FUNNEL CLOUDS WERE BELIEVED TO BE CAUSED BY A COMBINATION OF THE SHOWERS IN THE AREA AND AN UPPER LEVEL LOW PRESSURE SYSTEM MOVING ACROSS CENTRAL MISSOURI. THESE TYPE OF FUNNEL CLOUDS ARE SIMILAR TO COLD AIR FUNNELS...WHICH RARELY REACH THE GROUND. HOWEVER...PEOPLE IN CENTRAL MISSOURI SHOULD KEEP AN EYE ON THE SKY. IF YOU SEE ONE OF THESE FUNNEL CLOUDS NEARBY MOVE INDOORS. EVEN THOUGH THESE FUNNEL CLOUDS RARELY TOUCHDOWN...IF ONE DOES IT COULD CAUSE SOME DAMAGE. DLF
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 8:49 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway | 41 min |
| Jun 13, 3:55 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 50 min |
| Jun 13, 3:58 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 47 min |
| Jun 13, 4:48 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois, Washington | 42 min |
| Jun 13, 5:00 PM CDT | Tornado Warning | LSX | Saint Francois | 45 min |
| Jun 13, 5:21 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 54 min |
| Jun 13, 6:02 PM CDT | Severe Thunderstorm Warning | LSX | Iron | 28 min |
| Jun 13, 6:53 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 52 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 1997Every severe thunderstorm warning 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.