Alert archive / Illinois / Tornado Warnings in 2026
Tornado Warning 32, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 27, 2026, 9:03 AM CDT for Greene County, Pike County, Illinois. It was in force for 42 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
- Apr 27, 2026, 9:03 AM CDT (14:03 UTC)
- Expired
- Apr 27, 2026, 9:45 AM CDT
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Greene County, IL, Pike County, IL
The radar
The St Louis radar (KLSX), 99 km from the middle of the area, began a volume at 14:06 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 |
|---|---|---|---|
| Apr 27, 4:07 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 2.1 hours before the alert went out and 184 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
- 1053 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 306 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
871
WFUS53 KLSX 271403
TORLSX
ILC061-149-271445-
/O.NEW.KLSX.TO.W.0032.260427T1403Z-260427T1445Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
903 AM CDT Mon Apr 27 2026
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northwestern Greene County in southwestern Illinois...
Southeastern Pike County in west central Illinois...
* Until 945 AM CDT.
* At 903 AM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles north of Pleasant Hill, or 7 miles southwest of
Pittsfield, moving east at 50 mph.
HAZARD...Tornado.
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 tornado will be near...
Pleasant Hill around 905 AM CDT.
Pittsfield around 910 AM CDT.
Other locations impacted by the tornado include Martinsburg, Nebo,
Independence, Time, Milton, Detroit, Florence, Montezuma and Bedford.
This includes Interstate 72 between exits 31 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from 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 3940 9086 3969 9091 3976 9061 3973 9063
3972 9064 3970 9065 3964 9061 3962 9060
3960 9060 3960 9059 3956 9058 3954 9057
3953 9058 3952 9058 3952 9038 3941 9037
TIME...MOT...LOC 1403Z 254DEG 44KT 3953 9088
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
Pfahler3 follow-up statements
341
WWUS53 KLSX 271420
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
920 AM CDT Mon Apr 27 2026
ILC061-149-271445-
/O.CON.KLSX.TO.W.0032.000000T0000Z-260427T1445Z/
Greene IL-Pike IL-
920 AM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR
NORTHWESTERN GREENE COUNTY IN SOUTHWESTERN ILLINOIS AND SOUTHEASTERN
PIKE COUNTY IN WEST CENTRAL ILLINOIS...
At 920 AM CDT, a severe thunderstorm capable of producing a tornado
was located 11 miles southeast of Griggsville, or 9 miles east of
Pittsfield, moving east at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
Other locations impacted by the tornado include Montezuma, Florence,
Bedford, Milton, Detroit and Barrow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3940 9080 3956 9074 3972 9077 3976 9061
3970 9065 3965 9061 3960 9060 3958 9058
3954 9057 3952 9058 3952 9038 3947 9037
3941 9037
TIME...MOT...LOC 1403Z 257DEG 40KT 3953 9088
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH883
WWUS53 KLSX 271425
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
925 AM CDT Mon Apr 27 2026
ILC149-271435-
/O.CAN.KLSX.TO.W.0032.000000T0000Z-260427T1445Z/
Pike IL-
925 AM CDT Mon Apr 27 2026
...TORNADO WARNING IS CANCELLED FOR SOUTHEASTERN PIKE COUNTY IN WEST
CENTRAL ILLINOIS...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for a
portion of west central Illinois.
&&
LAT...LON 3952 9058 3952 9038 3947 9037 3941 9037
3940 9061 3943 9062 3944 9061 3946 9061
3948 9059 3951 9058
TIME...MOT...LOC 1420Z 257DEG 40KT 3957 9063
$$
ILC061-271445-
/O.CON.KLSX.TO.W.0032.000000T0000Z-260427T1445Z/
Greene IL-
925 AM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR
NORTHWESTERN GREENE COUNTY...
At 925 AM CDT, a severe thunderstorm capable of producing a tornado
was located 12 miles southeast of Griggsville, or 13 miles east of
Pittsfield, moving east at 45 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
Other locations impacted by the tornado include Barrow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3952 9058 3952 9038 3947 9037 3941 9037
3940 9061 3943 9062 3944 9061 3946 9061
3948 9059 3951 9058
TIME...MOT...LOC 1420Z 257DEG 40KT 3957 9063
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
BSH900
WWUS53 KLSX 271442
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
942 AM CDT Mon Apr 27 2026
ILC061-271452-
/O.EXP.KLSX.TO.W.0032.000000T0000Z-260427T1445Z/
Greene IL-
942 AM CDT Mon Apr 27 2026
...TORNADO WARNING WILL EXPIRE AT 945 AM CDT FOR NORTHWESTERN GREENE
COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for a
portion of southwest Illinois.
&&
LAT...LON 3952 9058 3952 9038 3947 9037 3941 9037
3940 9061 3943 9062 3944 9061 3946 9061
3948 9059 3951 9058
TIME...MOT...LOC 1425Z 257DEG 40KT 3959 9056
$$
BSHThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 6:32 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 43 min |
| Apr 27, 7:03 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Marion, Washington | 57 min |
| Apr 27, 7:59 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin, Montgomery | 33 min |
| Apr 27, 8:10 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Calhoun, Pike | 65 min |
| Apr 27, 8:24 AM CDT | Tornado Warning | LSX | Calhoun, Pike | 51 min |
| Apr 27, 8:57 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Pike | 48 min |
| Apr 27, 9:44 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 61 min |
| Apr 27, 10:29 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 61 min |
| Apr 27, 10:52 AM CDT | Severe Thunderstorm Warning | LSX | Macoupin, Montgomery | 42 min |
| Apr 27, 11:18 AM CDT | Flood Watch | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 7 more | 10 hr |
| Apr 27, 12:09 PM CDT | Areal Flood Advisory | LSX | Calhoun | 3 hr |
| Apr 27, 12:27 PM CDT | Tornado Warning | LSX | Madison, Saint Clair | 48 min |
| Apr 27, 1:07 PM CDT | Flash Flood Warning | LSX | Fayette, Montgomery | 7 hr |
| Apr 27, 1:13 PM CDT | Tornado Warning | LSX | Madison | 47 min |
| Apr 27, 1:49 PM CDT | Tornado Warning | LSX | Bond, Madison | 14 min |
| Apr 27, 1:55 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 45 min |
| Apr 27, 2:01 PM CDT | Tornado Warning | LSX | Madison, Saint Clair | 27 min |
| Apr 27, 2:30 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Madison | 27 min |
| Apr 27, 3:05 PM CDT | River Flood Warning | LSX | Jackson, Randolph | 8 days |
| Apr 27, 3:13 PM CDT | River Flood Warning | LSX | Pike, Scott | 9 days |
| Apr 27, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey, Madison | 46 min |
| Apr 27, 3:16 PM CDT | River Flood Warning | LSX | Fayette | 4 days |
| Apr 27, 3:19 PM CDT | Tornado Warning | LSX | Calhoun, Jersey, Madison | 41 min |
| Apr 27, 3:46 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Pike | 44 min |
| Apr 27, 3:52 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Macoupin, Madison | 38 min |
| Apr 27, 4:20 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 55 min |
| Apr 27, 4:34 PM CDT | Tornado Warning | LSX | Adams, Brown | 29 min |
| Apr 27, 4:46 PM CDT | Tornado Warning | LSX | Calhoun, Pike | 44 min |
| Apr 27, 4:52 PM CDT | Flash Flood Warning | LSX | Adams, Pike | 4 hr |
| Apr 27, 5:20 PM CDT | Flash Flood Warning | LSX | Brown, Pike | 3 hr |
| Apr 27, 5:21 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Pike | 39 min |
| Apr 27, 5:27 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene | 33 min |
| Apr 27, 5:32 PM CDT | Flash Flood Warning | LSX | Jersey | 5 hr |
| Apr 27, 5:32 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey, Macoupin | 43 min |
| Apr 27, 5:47 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 58 min |
| Apr 27, 5:50 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey, Macoupin | 40 min |
| Apr 27, 5:59 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey | 46 min |
| Apr 27, 6:01 PM CDT | Tornado Warning | LSX | Jersey, Macoupin | 44 min |
| Apr 27, 6:09 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin | 21 min |
| Apr 27, 6:28 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Calhoun, Fayette, Jersey, Macoupin, Madison and 1 more | 47 min |
| Apr 27, 6:41 PM CDT | Tornado Warning | LSX | Calhoun, Jersey, Madison | 32 min |
| Apr 27, 6:47 PM CDT | Flash Flood Warning | LSX | Macoupin | 5 hr |
Nearby
Tornado Warnings in Illinois, 2026Every tornado warning in 2026Tornadoes in 2026
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.