Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 178, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Oct 14, 2017, 8:40 PM CDT for Marion County, Ralls County, Missouri; Adams County, Pike County, Illinois. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 14, 2017, 8:40 PM CDT (01:40 UTC)
- Expired
- Oct 14, 2017, 9:30 PM CDT
- In force
- 50 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Adams County, IL, Pike County, IL, Marion County, MO, Ralls County, MO
The radar
The St Louis radar (KLSX), 130 km from the middle of the area, began a volume at 01:40 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 14, 5:09 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 1.7 hours before the alert went out and 223 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
- 98 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 333 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted.
205
WUUS53 KLSX 150140
SVRLSX
ILC001-149-MOC127-173-150230-
/O.NEW.KLSX.SV.W.0178.171015T0140Z-171015T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
840 PM CDT SAT OCT 14 2017
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Northwestern Pike County in west central Illinois...
Adams County in west central Illinois...
Northern Ralls County in northeastern Missouri...
Central Marion County in northeastern Missouri...
* Until 930 PM CDT.
* At 840 PM CDT, a severe thunderstorm was located near Monroe City,
moving northeast at 60 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Quincy, Hannibal, Palmyra, Monroe City, Quincy Regional Airport,
Barry, Camp Point, Payson, New London, Clayton, Golden, Fall Creek,
Beverly, Rensselaer, Spaulding, Adams, Kingston, Burton, Liberty
and Hull.
This includes the following highways...
Interstate 172 between exits 2 and 15.
Interstate 72 between exits 4 and 20.
This also includes Siloam Springs State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 100 AM CDT for west central
Illinois...and northeastern Missouri.
LAT...LON 3947 9171 3981 9171 4019 9092 3970 9092
TIME...MOT...LOC 0140Z 243DEG 52KT 3965 9165
HAIL...1.00IN
WIND...60MPH
$$
Britt4 follow-up statements
823
WWUS53 KLSX 150155
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
855 PM CDT SAT OCT 14 2017
ILC001-149-MOC127-173-150230-
/O.CON.KLSX.SV.W.0178.000000T0000Z-171015T0230Z/
Pike IL-Adams IL-Ralls MO-Marion MO-
855 PM CDT SAT OCT 14 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHWESTERN PIKE AND ADAMS COUNTIES IN WEST CENTRAL ILLINOIS...
NORTHERN RALLS AND CENTRAL MARION COUNTIES IN NORTHEASTERN
MISSOURI...
At 855 PM CDT, severe thunderstorms were located along a line
extending from near Palmyra to near Hannibal to near Spaulding,
moving northeast at 55 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Quincy, Hannibal, Palmyra, Quincy Regional Airport, Barry, Camp
Point, Payson, New London, Clayton, Golden, Fall Creek, Beverly,
Rensselaer, Spaulding, Adams, Kingston, Burton, Liberty, Hull and
Richfield.
This also includes Siloam Springs State Park.
This includes the following highways...
Interstate 172 between exits 2 and 15.
Interstate 72 between exits 4 and 20.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 100 AM CDT for west central
Illinois...and northeastern Missouri.
LAT...LON 3949 9165 3983 9167 4019 9092 3970 9092
TIME...MOT...LOC 0155Z 239DEG 49KT 3986 9153 3973 9144 3956 9148
HAIL...1.00IN
WIND...60MPH
$$
Britt068
WWUS53 KLSX 150207
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
907 PM CDT SAT OCT 14 2017
ILC001-149-MOC127-173-150230-
/O.CON.KLSX.SV.W.0178.000000T0000Z-171015T0230Z/
Pike IL-Adams IL-Ralls MO-Marion MO-
907 PM CDT SAT OCT 14 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHWESTERN PIKE AND ADAMS COUNTIES IN WEST CENTRAL ILLINOIS...
NORTHEASTERN RALLS AND EASTERN MARION COUNTIES IN NORTHEASTERN
MISSOURI...
At 906 PM CDT, a severe thunderstorm was located 7 miles southeast of
Hannibal, moving northeast at 65 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Quincy, Hannibal, Quincy Regional Airport, Barry, Camp Point, Payson,
New London, Clayton, Golden, Fall Creek, Beverly, Adams, Kingston,
Burton, Liberty, Hull, Richfield, Plainville, Kinderhook and
Coatsburg.
This also includes Siloam Springs State Park.
This includes the following highways...
Interstate 172 between exits 2 and 15.
Interstate 72 between exits 4 and 20.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 100 AM CDT for west central
Illinois...and northeastern Missouri.
LAT...LON 3954 9147 3991 9151 4019 9092 3970 9092
TIME...MOT...LOC 0206Z 247DEG 54KT 3966 9126
TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
$$
Britt370
WWUS53 KLSX 150218
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
918 PM CDT SAT OCT 14 2017
MOC127-150227-
/O.CAN.KLSX.SV.W.0178.000000T0000Z-171015T0230Z/
Marion MO-
918 PM CDT SAT OCT 14 2017
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MARION COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 100 AM CDT for west central
Illinois...and northeastern Missouri.
LAT...LON 3970 9092 3958 9135 3969 9133 3969 9131
3970 9133 3984 9131 4001 9092
TIME...MOT...LOC 0217Z 245DEG 52KT 3971 9110
$$
ILC001-149-MOC173-150230-
/O.CON.KLSX.SV.W.0178.000000T0000Z-171015T0230Z/
Pike IL-Adams IL-Ralls MO-
918 PM CDT SAT OCT 14 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHWESTERN PIKE...SOUTHEASTERN ADAMS COUNTIES IN WEST CENTRAL
ILLINOIS AND NORTHEASTERN RALLS COUNTIES IN NORTHEASTERN MISSOURI...
At 917 PM CDT, a severe thunderstorm was located near Barry, moving
northeast at 60 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Hannibal, Barry, Payson, Fall Creek, Beverly, Adams, Kingston,
Liberty, Hull, Richfield, Plainville, Kinderhook, Saverton, Seehorn,
Kellerville and Ilasco.
This also includes Siloam Springs State Park.
This includes the following highways...
Interstate 172 near exit 2.
Interstate 72 between exits 4 and 20.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 100 AM CDT for west central
Illinois...and northeastern Missouri.
LAT...LON 3970 9092 3958 9135 3969 9133 3969 9131
3970 9133 3984 9131 4001 9092
TIME...MOT...LOC 0217Z 245DEG 52KT 3971 9110
HAIL...0.75IN
WIND...60MPH
$$
Britt643
WWUS53 KLSX 150228
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
928 PM CDT SAT OCT 14 2017
ILC001-149-MOC173-150238-
/O.EXP.KLSX.SV.W.0178.000000T0000Z-171015T0230Z/
Pike IL-Adams IL-Ralls MO-
928 PM CDT SAT OCT 14 2017
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN PIKE...
SOUTHEASTERN ADAMS COUNTIES IN WEST CENTRAL ILLINOIS AND NORTHEASTERN
RALLS COUNTIES IN NORTHEASTERN MISSOURI WILL EXPIRE AT 930 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning will be allowed to expire.
A tornado watch remains in effect until 100 AM CDT for west central
Illinois...and northeastern Missouri.
LAT...LON 3970 9092 3958 9135 3969 9133 3969 9131
3970 9133 3984 9131 4001 9092
TIME...MOT...LOC 0228Z 241DEG 46KT 3977 9095
$$
BrittThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 7:13 PM CDT | Special Weather Statement | LSX | Knox | 32 min |
| Oct 14, 8:03 PM CDT | Special Weather Statement | LSX | Monroe | 42 min |
| Oct 14, 8:15 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Monroe, Shelby | 45 min |
| Oct 14, 9:21 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau | 39 min |
| Oct 14, 9:59 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway, Cole, Gasconade, Moniteau and 2 more | 46 min |
| Oct 14, 10:16 PM CDT | Special Weather Statement | LSX | Pike, Ralls | 44 min |
| Oct 14, 9:32 PM CDT | Special Weather Statement | LSX | Brown | 28 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2017Severe Thunderstorm Warnings in Illinois, 2017Every severe thunderstorm warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.