Alert archive / Missouri / Tornado Warnings in 2019
Tornado Warning 47, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Sep 27, 2019, 7:34 PM CDT for Knox County, Lewis County, Missouri; Adams County, Illinois. It was in force for 41 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 27, 2019, 7:34 PM CDT (00:34 UTC)
- Expired
- Sep 27, 2019, 8:15 PM CDT
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.25 in
Counties Adams County, IL, Knox County, MO, Lewis County, MO
The radar
The Quad Cities radar (KDVN), 181 km from the middle of the area, began a volume at 00:36 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 |
|---|---|---|---|
| Sep 27, 8:03 PM CDT | HAIL 1 | 1 Nne Canton, MO | REPORTED VIA LAW ENFORCEMENT: DIME-SIZED HAIL UP TO QUARTER-SIZED. |
| Sep 27, 8:16 PM CDT | FUNNEL CLOUD | 3 Nw Mendon, IL | REPORTED FUNNEL CLOUD ROTATING. DIFFICULT TO SEE GIVEN DARKNESS BUT LIGHTNING IS LIGHTING UP THE SKY SHOWING IT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 27, 4:00 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.6 hours before the alert went out and 185 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
- 1148 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 6.6
The text
As transmitted.
010
WFUS53 KLSX 280034
TORLSX
ILC001-MOC103-111-280115-
/O.NEW.KLSX.TO.W.0047.190928T0034Z-190928T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
734 PM CDT Fri Sep 27 2019
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northwestern Adams County in west central Illinois...
East central Knox County in northeastern Missouri...
Lewis County in northeastern Missouri...
* Until 815 PM CDT.
* At 734 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Lewistown, moving east at 40 mph.
HAZARD...Tornado and half dollar size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Canton and La Grange around 805 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Monticello, Meyer, Ursa and Lima.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4025 9150 4020 9150 4020 9128 4002 9131
4002 9196 4020 9204 4026 9173
TIME...MOT...LOC 0034Z 258DEG 36KT 4008 9187
TORNADO...RADAR INDICATED
HAIL...1.25IN
$$
Britt3 follow-up statements
069
WWUS53 KLSX 280043
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
743 PM CDT Fri Sep 27 2019
MOC103-280051-
/O.CAN.KLSX.TO.W.0047.000000T0000Z-190928T0115Z/
Knox MO-
743 PM CDT Fri Sep 27 2019
...THE TORNADO WARNING FOR EAST CENTRAL KNOX COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CDT for west central
Illinois...and northeastern Missouri.
LAT...LON 4025 9154 4025 9150 4024 9151 4020 9150
4020 9128 4002 9131 4002 9195 4022 9195
4026 9175
TIME...MOT...LOC 0041Z 259DEG 28KT 4007 9182
$$
ILC001-MOC111-280115-
/O.CON.KLSX.TO.W.0047.000000T0000Z-190928T0115Z/
Adams IL-Lewis MO-
743 PM CDT Fri Sep 27 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN ADAMS AND LEWIS COUNTIES...
At 741 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Lewistown, moving east at 30 mph.
HAZARD...Tornado and half dollar size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Canton and La Grange around 815 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Monticello, Meyer, Ursa and Lima.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4025 9154 4025 9150 4024 9151 4020 9150
4020 9128 4002 9131 4002 9195 4022 9195
4026 9175
TIME...MOT...LOC 0041Z 259DEG 28KT 4007 9182
TORNADO...RADAR INDICATED
HAIL...1.25IN
$$
Britt452
WWUS53 KLSX 280053
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
753 PM CDT Fri Sep 27 2019
ILC001-MOC111-280115-
/O.CON.KLSX.TO.W.0047.000000T0000Z-190928T0115Z/
Adams IL-Lewis MO-
753 PM CDT Fri Sep 27 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN ADAMS AND CENTRAL LEWIS COUNTIES...
At 752 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Ewing, moving east at 40 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Canton and La Grange around 805 PM CDT.
Other locations impacted by this tornadic thunderstorm include
Monticello, Meyer, Ursa and Lima.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4025 9154 4025 9150 4024 9151 4020 9150
4020 9128 4002 9131 4002 9184 4024 9184
4026 9175
TIME...MOT...LOC 0052Z 258DEG 36KT 4009 9167
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$
Britt956
WWUS53 KLSX 280059
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
759 PM CDT Fri Sep 27 2019
ILC001-MOC111-280115-
/O.CON.KLSX.TO.W.0047.000000T0000Z-190928T0115Z/
Adams IL-Lewis MO-
759 PM CDT Fri Sep 27 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN ADAMS AND NORTHEASTERN LEWIS COUNTIES...
At 759 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Canton, moving east at 40 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
northwestern Adams and northeastern Lewis Counties, including the
following locations... Monticello, Meyer, Ursa and Lima.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4023 9155 4025 9150 4024 9151 4020 9150
4020 9128 4002 9131 4003 9170 4013 9174
4018 9170
TIME...MOT...LOC 0059Z 261DEG 36KT 4009 9157
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$
BrittThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 27, 7:00 PM CDT | Tornado Warning | LSX | Knox, Lewis | 45 min |
| Sep 27, 7:06 PM CDT | Severe Thunderstorm Warning | LSX | Knox | 39 min |
| Sep 27, 8:14 PM CDT | Severe Thunderstorm Warning | LSX | Knox | 46 min |
| Sep 27, 8:51 PM CDT | Severe Thunderstorm Warning | LSX | Lewis | 54 min |
| Sep 27, 8:59 PM CDT | Flash Flood Warning | LSX | Knox, Lewis | 8 hr |
| Sep 27, 10:14 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 46 min |
| Sep 28, 3:06 AM CDT | River Flood Warning | LSX | Lewis | 40 days |
| Sep 28, 10:36 AM CDT | River Flood Warning | LSX | Lewis | 3 days |
| Sep 28, 10:36 AM CDT | River Flood Warning | LSX | Lewis | 10 hr |
| Sep 28, 11:06 AM CDT | River Flood Warning | LSX | Marion | 36 days |
| Sep 28, 11:06 AM CDT | River Flood Warning | LSX | Ralls | 38 days |
| Sep 27, 8:07 PM CDT | Tornado Warning | LSX | Adams | 53 min |
| Sep 28, 1:19 AM CDT | Special Weather Statement | LSX | Brown | 41 min |
Nearby
Tornado Warnings in Missouri, 2019Tornado Warnings in Illinois, 2019Every tornado warning in 2019Tornadoes in 2019
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.