Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 89, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 19, 2017, 7:23 PM CDT for 5 counties in Missouri. It was in force for 52 min. 3 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
- May 19, 2017, 7:23 PM CDT (00:23 UTC)
- Expired
- May 19, 2017, 8:15 PM CDT
- In force
- 52 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Franklin County, MO, Gasconade County, MO, Lincoln County, MO, Montgomery County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 62 km from the middle of the area, began a volume at 00:28 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 |
|---|---|---|---|
| May 19, 7:55 PM CDT | TSTM WND GST 60 | 4 Ene Lyon, MO | TREES WERE BENT OVER TOUCHING THE GROUND ALONG WITH DIME-SIZED HAIL. |
| May 19, 8:17 PM CDT | HAIL 0.88 | 1 Sse Washington, MO | |
| May 19, 8:20 PM CDT | HAIL 0.88 | 1 Sse Washington, MO | NICKEL-SIZE HAIL REPORTED AT THE INTERSECTION OF HWY 47 AND BIEKER ROAD IN WASHINGTON. |
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 |
|---|---|---|---|
| May 19, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 0.4 hours before the alert went out and 281 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
- 1427 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -186 m²/s²
- 0-3 km storm-relative helicity
- -113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
907
WUUS53 KLSX 200023
SVRLSX
MOC071-073-113-139-219-200115-
/O.NEW.KLSX.SV.W.0089.170520T0023Z-170520T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
723 PM CDT FRI MAY 19 2017
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Southwestern Lincoln County in east central Missouri...
Central Montgomery County in east central Missouri...
Franklin County in east central Missouri...
Warren County in east central Missouri...
Gasconade County in east central Missouri...
* Until 815 PM CDT.
* At 723 PM CDT, severe thunderstorms were located along a line
extending from near Williamsburg to near Swiss to 8 miles southeast
of Bland, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Washington, Troy, Union, Warrenton, Sullivan, St. Clair, Wright
City, Montgomery City, Owensville, Hermann, New Haven, Gerald,
Marthasville, New Florence, Jonesburg, Truesdale, Hawk Point,
Innsbrook, Parkway and Rosebud.
This includes the following highways...
Interstate 44 in Missouri between exits 225 and 240.
Interstate 70 in Missouri between exits 170 and 200.
This also includes Deutschheim Historic Site, Graham Cave State
Park, and Meramec State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 1000 PM CDT for central and
east central Missouri.
LAT...LON 3906 9097 3820 9096 3820 9137 3821 9153
3816 9153 3815 9159 3856 9154 3894 9164
3897 9164
TIME...MOT...LOC 0023Z 251DEG 42KT 3893 9163 3860 9149 3820 9155
HAIL...<.75IN
WIND...60MPH
$$
Glass3 follow-up statements
196
WWUS53 KLSX 200044
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
744 PM CDT FRI MAY 19 2017
MOC073-200053-
/O.CAN.KLSX.SV.W.0089.000000T0000Z-170520T0115Z/
Gasconade MO-
744 PM CDT FRI MAY 19 2017
...THE SEVERE THUNDERSTORM WARNING FOR GASCONADE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 1000 PM CDT for east central
Missouri.
LAT...LON 3906 9097 3820 9096 3820 9137 3870 9137
3899 9146
TIME...MOT...LOC 0043Z 248DEG 39KT 3900 9136 3868 9124 3836 9126
$$
MOC071-113-139-219-200115-
/O.CON.KLSX.SV.W.0089.000000T0000Z-170520T0115Z/
Lincoln MO-Montgomery MO-Franklin MO-Warren MO-
744 PM CDT FRI MAY 19 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR SOUTHWESTERN LINCOLN...EAST CENTRAL MONTGOMERY...FRANKLIN AND
WARREN COUNTIES...
At 743 PM CDT, severe thunderstorms were located along a line
extending from Bellflower to near Treloar to near Gerald, moving east
at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Washington, Troy, Union, Warrenton, Sullivan, St. Clair, Wright City,
New Haven, Gerald, Marthasville, Jonesburg, Truesdale, Hawk Point,
Innsbrook, Parkway, Bellflower, Miramiguoa Park, Beaufort, Treloar
and Dutzow.
This also includes Meramec State Park.
This includes the following highways...
Interstate 44 in Missouri between exits 225 and 240.
Interstate 70 in Missouri between exits 179 and 200.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 1000 PM CDT for east central
Missouri.
LAT...LON 3906 9097 3820 9096 3820 9137 3870 9137
3899 9146
TIME...MOT...LOC 0043Z 248DEG 39KT 3900 9136 3868 9124 3836 9126
HAIL...0.75IN
WIND...60MPH
$$
Glass894
WWUS53 KLSX 200054
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
754 PM CDT FRI MAY 19 2017
MOC139-200104-
/O.CAN.KLSX.SV.W.0089.000000T0000Z-170520T0115Z/
Montgomery MO-
754 PM CDT FRI MAY 19 2017
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MONTGOMERY COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A tornado watch remains in effect until 1000 PM CDT for east central
Missouri.
LAT...LON 3834 9096 3832 9125 3870 9126 3902 9126
3906 9097
TIME...MOT...LOC 0054Z 251DEG 42KT 3904 9121 3872 9109 3840 9111
$$
MOC071-113-219-200115-
/O.CON.KLSX.SV.W.0089.000000T0000Z-170520T0115Z/
Lincoln MO-Franklin MO-Warren MO-
754 PM CDT FRI MAY 19 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR SOUTHWESTERN LINCOLN...CENTRAL FRANKLIN AND WARREN COUNTIES...
At 754 PM CDT, severe thunderstorms were located along a line
extending from 6 miles northwest of Hawk Point to near Innsbrook to
near Beaufort, moving east at 50 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...
Washington, Troy, Union, Warrenton, St. Clair, Wright City, New
Haven, Marthasville, Truesdale, Hawk Point, Innsbrook, Parkway,
Beaufort, Treloar, Dutzow, Foristell, Leslie, Truxton, Cave and Noser
Mill.
This includes the following highways...
Interstate 44 in Missouri between exits 239 and 242.
Interstate 70 in Missouri between exits 188 and 200.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
A tornado watch remains in effect until 1000 PM CDT for east central
Missouri.
LAT...LON 3834 9096 3832 9125 3870 9126 3902 9126
3906 9097
TIME...MOT...LOC 0054Z 251DEG 42KT 3904 9121 3872 9109 3840 9111
HAIL...1.00IN
WIND...60MPH
$$
Glass123
WWUS53 KLSX 200112
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
812 PM CDT FRI MAY 19 2017
MOC071-113-219-200122-
/O.EXP.KLSX.SV.W.0089.000000T0000Z-170520T0115Z/
Lincoln MO-Franklin MO-Warren MO-
812 PM CDT FRI MAY 19 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN LINCOLN...CENTRAL
FRANKLIN AND WARREN COUNTIES WILL EXPIRE AT 815 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and were exiting the warned area. Therefore the warning will
be allowed to expire. However small hail and gusty winds of 30
to 40 mph are still possible with these thunderstorms.
A tornado watch remains in effect until 1000 PM CDT for east central
Missouri.
LAT...LON 3834 9096 3832 9125 3870 9126 3902 9126
3906 9097
TIME...MOT...LOC 0112Z 251DEG 42KT 3911 9096 3879 9084 3847 9086
$$
GlassThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 9:57 PM CDT | River Flood Warning | LSX | Gasconade, Montgomery | 13 days |
| May 20, 9:56 AM CDT | River Flood Warning | LSX | Cole | 56 hr |
| May 20, 11:43 AM CDT | River Flood Warning | LSX | Lincoln | 38 hr |
| May 20, 11:59 AM CDT | River Flood Warning | LSX | Ralls | 3 days |
| May 20, 12:30 PM CDT | River Flood Warning | LSX | Lincoln | 4 days |
| May 20, 3:23 PM CDT | River Flood Warning | LSX | Callaway, Osage | 7 days |
| May 20, 3:23 PM CDT | River Flood Warning | LSX | Gasconade, Montgomery | 7 days |
Nearby
Severe Thunderstorm Warnings in Missouri, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.