Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 108, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 27, 2021, 6:47 PM CDT for Lincoln County, Pike County, Missouri; Calhoun County, Greene County, Pike County, Illinois. It was in force for 43 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 27, 2021, 6:47 PM CDT (23:47 UTC)
- Expired
- Jun 27, 2021, 7:30 PM CDT
- In force
- 43 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Calhoun County, IL, Greene County, IL, Pike County, IL, Lincoln County, MO, Pike County, MO
The radar
The St Louis radar (KLSX), 63 km from the middle of the area, began a volume at 23:49 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.8 hours before the alert went out and 209 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
- 194 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 699 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
083 WUUS53 KLSX 272347 SVRLSX ILC013-061-149-MOC113-163-280030- /O.NEW.KLSX.SV.W.0108.210627T2347Z-210628T0030Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service St Louis MO 647 PM CDT Sun Jun 27 2021 The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Northwestern Calhoun County in southwestern Illinois... Northwestern Greene County in southwestern Illinois... Southeastern Pike County in west central Illinois... Northeastern Lincoln County in east central Missouri... Southeastern Pike County in northeastern Missouri... * Until 730 PM CDT. * At 647 PM CDT, a severe thunderstorm was located over Elsberry, moving north at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... Belleview around 705 PM CDT. Other locations in the path of this severe thunderstorm include Pleasant Hill. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3911 9063 3915 9100 3949 9096 3947 9054 TIME...MOT...LOC 2347Z 188DEG 27KT 3921 9077 HAIL...<.75IN WIND...60MPH $$ Glass
3 follow-up statements
928 WWUS53 KLSX 272358 SVSLSX Severe Weather Statement National Weather Service St Louis MO 658 PM CDT Sun Jun 27 2021 ILC013-061-149-MOC113-163-280030- /O.CON.KLSX.SV.W.0108.000000T0000Z-210628T0030Z/ Calhoun IL-Greene IL-Pike IL-Lincoln MO-Pike MO- 658 PM CDT Sun Jun 27 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHWESTERN CALHOUN AND NORTHWESTERN GREENE COUNTIES IN SOUTHWESTERN ILLINOIS...SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...NORTHEASTERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI AND SOUTHEASTERN PIKE COUNTIES IN NORTHEASTERN MISSOURI... At 657 PM CDT, a severe thunderstorm was located near Belleview, moving north at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. This severe storm will be near... Belleview around 705 PM CDT. Other locations in the path of this severe thunderstorm include Pleasant Hill. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3911 9063 3915 9100 3949 9096 3947 9054 TIME...MOT...LOC 2357Z 188DEG 27KT 3929 9076 HAIL...<.75IN WIND...60MPH $$ Glass
801
WWUS53 KLSX 280007
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
707 PM CDT Sun Jun 27 2021
MOC113-280017-
/O.CAN.KLSX.SV.W.0108.000000T0000Z-210628T0030Z/
Lincoln MO-
707 PM CDT Sun Jun 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LINCOLN COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3923 9060 3923 9099 3949 9096 3947 9054
TIME...MOT...LOC 0007Z 188DEG 27KT 3936 9075
$$
ILC013-061-149-MOC163-280030-
/O.CON.KLSX.SV.W.0108.000000T0000Z-210628T0030Z/
Calhoun IL-Greene IL-Pike IL-Pike MO-
707 PM CDT Sun Jun 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTHWESTERN CALHOUN AND NORTHWESTERN GREENE COUNTIES IN
SOUTHWESTERN ILLINOIS...SOUTHEASTERN PIKE COUNTY IN WEST CENTRAL
ILLINOIS AND SOUTHEASTERN PIKE COUNTIES IN NORTHEASTERN MISSOURI...
At 707 PM CDT, a severe thunderstorm was located over Belleview,
moving north at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
This severe storm will be near...
Pleasant Hill around 715 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3923 9060 3923 9099 3949 9096 3947 9054
TIME...MOT...LOC 0007Z 188DEG 27KT 3936 9075
HAIL...<.75IN
WIND...60MPH
$$
Glass646
WWUS53 KLSX 280021
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
721 PM CDT Sun Jun 27 2021
ILC013-061-149-MOC163-280030-
/O.EXP.KLSX.SV.W.0108.000000T0000Z-210628T0030Z/
Calhoun IL-Greene IL-Pike IL-Pike MO-
721 PM CDT Sun Jun 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CALHOUN AND
NORTHWESTERN GREENE COUNTIES IN SOUTHWESTERN ILLINOIS...SOUTHEASTERN
PIKE COUNTY IN WEST CENTRAL ILLINOIS AND SOUTHEASTERN PIKE COUNTIES
IN NORTHEASTERN MISSOURI WILL EXPIRE AT 730 PM CDT...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning will be allowed to expire.
LAT...LON 3923 9060 3923 9099 3949 9096 3947 9054
TIME...MOT...LOC 0020Z 194DEG 24KT 3942 9071
$$
GlassThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 9:34 PM CDT | River Flood Warning | LSX | Saint Louis, City of Saint Louis | 3 days |
| Jun 27, 11:35 AM CDT | River Flood Warning | LSX | Calhoun, Greene, Jersey | 3 days |
Nearby
Severe Thunderstorm Warnings in Illinois, 2021Severe Thunderstorm Warnings in Missouri, 2021Every severe thunderstorm warning in 2021
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.