Alert archive / Illinois / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 290, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 25, 2024, 3:08 PM CDT for Adams County, Pike County, Illinois. It was in force for 52 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
- Jun 25, 2024, 3:08 PM CDT (20:08 UTC)
- Expired
- Jun 25, 2024, 4:00 PM CDT
- In force
- 52 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
The radar
The St Louis radar (KLSX), 102 km from the middle of the area, began a volume at 20:11 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 25, 12:10 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.1 hours before the alert went out and 200 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
- 1724 J/kg
- Mixed-layer CIN
- -257 J/kg
- Mixed-layer LCL
- 1358 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 295 m²/s²
- 0-3 km storm-relative helicity
- 261 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted.
970
WUUS53 KLSX 252008
SVRLSX
ILC001-149-252100-
/O.NEW.KLSX.SV.W.0290.240625T2008Z-240625T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
308 PM CDT Tue Jun 25 2024
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Pike County in west central Illinois...
Southeastern Adams County in west central Illinois...
* Until 400 PM CDT.
* At 308 PM CDT, severe thunderstorms were located along a line
extending from near Griggsville to near Barry to 6 miles northwest
of Atlas, moving east at 20 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.
* Severe thunderstorms will be near...
Griggsville and Atlas around 315 PM CDT.
Pittsfield around 320 PM CDT.
This includes Interstate 72 between exits 20 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3970 9066 3956 9057 3954 9057 3953 9058
3951 9058 3943 9101 3948 9106 3954 9110
3960 9116 3973 9112 3982 9096 3982 9089
TIME...MOT...LOC 2008Z 282DEG 17KT 3975 9078 3969 9095 3958 9106
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Jaja3 follow-up statements
111
WWUS53 KLSX 252029
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
329 PM CDT Tue Jun 25 2024
ILC001-252039-
/O.CAN.KLSX.SV.W.0290.000000T0000Z-240625T2100Z/
Adams IL-
329 PM CDT Tue Jun 25 2024
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAMS COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southwestern and west central Illinois.
&&
LAT...LON 3969 9112 3975 9092 3972 9070 3970 9066
3956 9057 3954 9057 3953 9058 3952 9058
3948 9074 3943 9101 3948 9106
TIME...MOT...LOC 2029Z 279DEG 28KT 3969 9088
$$
ILC149-252100-
/O.CON.KLSX.SV.W.0290.000000T0000Z-240625T2100Z/
Pike IL-
329 PM CDT Tue Jun 25 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...
At 329 PM CDT, a severe thunderstorm was located near Pittsfield,
moving east at 30 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...
Pittsfield and Griggsville.
This includes Interstate 72 between exits 20 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3969 9112 3975 9092 3972 9070 3970 9066
3956 9057 3954 9057 3953 9058 3952 9058
3948 9074 3943 9101 3948 9106
TIME...MOT...LOC 2029Z 279DEG 28KT 3969 9088
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Jaja973
WWUS53 KLSX 252048
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
348 PM CDT Tue Jun 25 2024
ILC149-252100-
/O.CON.KLSX.SV.W.0290.000000T0000Z-240625T2100Z/
Pike IL-
348 PM CDT Tue Jun 25 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...
At 347 PM CDT, a severe thunderstorm was located near Griggsville,
moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Pittsfield, Atlas, Pike, Independence, Bedford, Montezuma,
Martinsburg, Milton, Detroit, El Dara, Florence, Time, New Hartford,
Summer Hill, and Rockport.
This includes Interstate 72 between exits 31 and 35.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3966 9102 3970 9066 3956 9057 3954 9057
3953 9058 3952 9058 3948 9074 3943 9101
3946 9104
TIME...MOT...LOC 2047Z 270DEG 17KT 3967 9077
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Jaja212
WWUS53 KLSX 252051
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
351 PM CDT Tue Jun 25 2024
ILC149-252101-
/O.EXP.KLSX.SV.W.0290.000000T0000Z-240625T2100Z/
Pike IL-
351 PM CDT Tue Jun 25 2024
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PIKE COUNTY IN
WEST CENTRAL ILLINOIS WILL EXPIRE AT 400 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However, gusty winds are still possible with
this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southwestern and west central Illinois.
&&
LAT...LON 3966 9102 3970 9066 3956 9057 3954 9057
3953 9058 3952 9058 3948 9074 3943 9101
3946 9104
TIME...MOT...LOC 2051Z 282DEG 17KT 3967 9075
$$
JajaWhat 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.
NWS St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 12:29 PM CDT, 2 hours 39 minutes earlier. Its key messages:
- The heat continues for one more day. Heat index values of 105+ are likely across parts of central, east central, and southeast Missouri as well as southwest and south central Illinois. The Heat Advisory remains in effect with no changes needed.
- Thunderstorms are expected to form this afternoon/evening along a slow moving cold front over Iowa, and move into our area during the late evening or overnight. Some storms could produce damaging winds of 60 mph or greater. A few could also produce some 1 inch hail. The highest threat of severe storms will be across northeast Missouri and west central Illinois, with a diminishing threat as the storms move farther south.
- The cold front passes more slowly than expected in previous forecasts. While We'll see relief from the heat on Wednesday, it will be more from clouds, and showers and thunderstorms, particularly in the afternoon south of I-70 where a few strong and possibly severe storms may develop.
Area forecast discussion, Jun 25, 12:29 PM CDT, 2 hours 39 minutes before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
1229 PM CDT Tue Jun 25 2024
.KEY MESSAGES...
- The heat continues for one more day. Heat index values of 105+ are
likely across parts of central, east central, and southeast
Missouri as well as southwest and south central Illinois. The
Heat Advisory remains in effect with no changes needed.
- Thunderstorms are expected to form this afternoon/evening along
a slow moving cold front over Iowa, and move into our area
during the late evening or overnight. Some storms could produce
damaging winds of 60 mph or greater. A few could also produce
some 1 inch hail. The highest threat of severe storms will be
across northeast Missouri and west central Illinois, with a
diminishing threat as the storms move farther south.
- The cold front passes more slowly than expected in previous forecasts.
While We'll see relief from the heat on Wednesday, it will be
more from clouds, and showers and thunderstorms, particularly in
the afternoon south of I-70 where a few strong and possibly
severe storms may develop.
&&
.SHORT TERM... (Through Late Wednesday Afternoon)
Issued at 341 AM CDT Tue Jun 25 2024
The Heat Advisory should be in good shape with the latest
temperature guidance giving us upper 90s and even some 100-101 highs
in the St. Louis Metro Area. The one fly in the ointment is the
potential for mixing this afternoon. The RAP and to a lesser extent
the GFS forecast soundings show deep mixing (over 700 mb on the
RAP!) which drops surface dew point temperatures into the 60s across
parts of southeast and east central Missouri into southwest
Illinois. In this scenario the heat index would be closer to the
air temperature. Though we technically wouldn't make it to advisory
criteria, the air temperature would likely be hotter than forecast,
and the potential health effects would be the same, so I've made no
changes to the advisory at this time.
The heat and humidity will produce strong instability over northern
Missouri into Iowa this afternoon ahead of the cold front which will
ultimately bring us relief from the heat. The GFS and RAP show 4500
to 5000+ J/Kg MLCAPE late this afternoon across Iowa. They both
develop convection and push it south slowly ahead of the front. Most
CAMs have not been handling the ongoing convection across the Upper
Midwest well, but the ARW WRF does seem to have a clue, which is
making me lean on its solution. It develops several clusters of
convection along the front which grow upscale into a QLCS that races
south-southeast through the forecast area. Timing may not be
perfect, but the evolution makes sense. The RAP and GFS never show
more than about 2000 J/Kg MUCAPE Tuesday night as the line moves
through, and deep layer shear is only about 15-25kts. That being
said, we could see some damaging wind, particularly across northern
portions of the area as the QLCS moves out of Iowa. Not sure how
far south the wind threat will continue, but the storms should
weaken as they move south away from the greatest instability.
The latest guidance continues to show a slower solution for the
FROPA which will bring us relief from our hot spell. This looks
like it's primarily due to a slower and sharper upstream short wave
moving across the northern Plains and Upper Midwest late tonight
into early Wednesday morning. The stronger wave forces low level
cyclogenesis over the eastern Plains to along the Missouri/Iowa
border. The surface-850 low closes off and takes its time
meandering southeast through Missouri and southern Illinois
Wednesday. While the front doesn't make it all the way through the
area until some time during the late afternoon/early evening, clouds
and convection should keep temperatures in the 80s. Speaking of
convection, both the RAP and to a lesser extent the GFS show
instability increasing again in the afternoon across southern
Missouri and Illinois ahead of the front. The RAP is showing 3000+
J/Kg of MLCAPE with deep-layer shear of 30+ kts, so there will be
another threat for severe storms Wednesday afternoon ahead of the
front.
Carney
&&
.LONG TERM... (Wednesday Night through Monday)
Issued at 341 AM CDT Tue Jun 25 2024
Not much has changed for the remainder of the forecast. After a
cooler Thursday under the influence of high pressure centered over
the Great Lakes, southerly flow returns on Friday and we warm back
into the 90 on Friday. Another cold front develops over northern
Plains as a short wave aloft moves across the US/Canada border late
Friday and the cold front associated with this system dives through
the Mid Mississippi Valley Saturday. Temperatures ahead of the
front on Saturday are forecast to reach into the 90s again, although
ensemble guidance is showing a pretty wide spread across the area
due to differences with the speed of the front. The 25th to 75th
percentile high temperature spread on the LREF is 9 degrees at
Lambert on Saturday, and the NBM forecast is warmer than the 75th
percentile, so the current forecast may be a little hot. I did not
adjust it this morning due to the uncertainty in the speed of the
front at this time. One way or another, Sunday should be much
cooler with another strong high pressure system moving into the
Midwest and continuing to the east over the Great Lakes on Monday.
Carney
&&
.AVIATION... (For the 18z TAFs through 18z Wednesday Afternoon)
Issued at 1220 PM CDT Tue Jun 25 2024
A complicated scenario is expected this TAF period, with multiple
rounds of thunderstorms possible at all local terminals.
Currently, thunderstorms are ongoing over portions of northeastern
Missouri and west-central Illinois, impacting the area around
KUIN. These thunderstorms are expected to sink southward this
afternoon - possibly impacting KSUS, KSTL, and/or KCPS. However,
confidence in impacts at these terminals is low at this time.
Another round of storms is expected overnight, but the timing is
uncertain. The current timing in the TAFs represent the window in
which confidence is highest in impacts. However, each of the local
terminals could experience multiple rounds overnight, potentially
sooner and/or later than currently indicated. Main concerns for
impacts to any local terminals with thunderstorms is reductions in
visibility, lightning, and gusty winds. Thunderstorm chances are
expected to diminish late tomorrow morning.
Elmore
&&
.CLIMATE...
Issued at 353 AM CDT Mon Jun 24 2024
With hot temperatures forecast, here are some of the daily high
temperature records:
MON JUN 24 TUE JUN 25
ST LOUIS 102 in 1988 102 in 1954
COLUMBIA 103 in 1988 102 in 1988
QUINCY 99 in 1988 102 in 1931
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Heat Advisory until 8 PM CDT this evening for Audrain MO-Boone
MO-Callaway MO-Cole MO-Crawford MO-Franklin MO-Gasconade MO-
Iron MO-Jefferson MO-Lincoln MO-Madison MO-Moniteau MO-
Montgomery MO-Osage MO-Reynolds MO-Saint Charles MO-Saint
Francois MO-Saint Louis City MO-Saint Louis MO-Sainte
Genevieve MO-Warren MO-Washington MO.
IL...Heat Advisory until 8 PM CDT this evening for Bond IL-Clinton IL-
Fayette IL-Madison IL-Marion IL-Monroe IL-Randolph IL-Saint
Clair IL-Washington IL.
&&
WFO LSXHazardous weather outlook, Jun 25, 3:53 AM CDT, 11 hours 15 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 353 AM CDT Tue Jun 25 2024 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-260900- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 353 AM CDT Tue Jun 25 2024 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. Hot and humid conditions will produce heat index values of 105 and higher across parts of central and eastern Missouri as well as southwest Illinois. Please see the Heat Advisory product for details. Thunderstorms are expected tonight. Some of these storms may be severe. The main threat will be damaging winds. A few may also produce hail around 1 inch in diameter across parts of northeast Missouri into west central Illinois. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Thunderstorms are likely again on Wednesday. A few strong to severe storms are possible across parts of southeast Missouri into southwest Illinois. Damaging winds will be the primary threat from these storms. There is a chance for additional thunderstorms across parts of the area Thursday night through Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed tonight. Carney
In the hours before
Local storm report, Jun 25, 2:57 PM CDT, 11 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
257 PM CDT Tue Jun 25 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0239 PM Tstm Wnd Dmg Versailles 39.89N 90.66W
06/25/2024 Brown IL Emergency Mngr
EM reported power poles and trees down over
the north side of town. Time estimated from
radar.
&&
MRMThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 2:38 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 52 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2024Every severe thunderstorm warning in 2024
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.