Alert archive / Missouri / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 101, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 27, 2017, 3:35 PM CDT for 6 counties in Missouri. It was in force for 55 min. 7 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 27, 2017, 3:35 PM CDT (20:35 UTC)
- Expired
- May 27, 2017, 4:30 PM CDT
- In force
- 55 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Callaway County, MO, Franklin County, MO, Gasconade County, MO, Montgomery County, MO, Osage County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 76 km from the middle of the area, began a volume at 20:37 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 27, 3:35 PM CDT | TSTM WND DMG | 5 W Bland, MO | MULTIPLE TREES BLOCKING ROADWAYS. POWER LINES DOWN IN BELLE. |
| May 27, 3:35 PM CDT | TSTM WND DMG | Belle, MO | MULTIPLE TREES BLOCKING ROADWAYS. POWER LINES DOWN IN BELLE. |
| May 27, 3:38 PM CDT | HAIL 1 | 2 Sse Linn, MO | |
| May 27, 3:40 PM CDT | TSTM WND DMG | 5 W Bland, MO | TREES AND POWER LINES DOWN. |
| May 27, 3:44 PM CDT | TSTM WND DMG | Bland, MO | NUMEROUS LIMBS BLOWN DOWN AS WELL AS POWER LINES AROUND TOWN. |
| May 27, 4:04 PM CDT | TSTM WND DMG | Sullivan, MO | MEDIUM SIZED TREE SNAPPED. |
| May 27, 4:28 PM CDT | TSTM WND GST 42 | Dutzow, MO |
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 27, 12:13 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.6 hours before the alert went out and 269 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
- 3187 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 766 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 1.8
- Supercell composite
- 9.6
The text
As transmitted.
546
WUUS53 KLSX 272035
SVRLSX
MOC027-071-073-139-151-219-272130-
/O.NEW.KLSX.SV.W.0101.170527T2035Z-170527T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
335 PM CDT SAT MAY 27 2017
The National Weather Service in St Louis has issued a
* Severe Thunderstorm Warning for...
Southern Montgomery County in east central Missouri...
Southeastern Callaway County in central Missouri...
Franklin County in east central Missouri...
Eastern Osage County in central Missouri...
Warren County in east central Missouri...
Gasconade County in east central Missouri...
* Until 430 PM CDT.
* At 335 PM CDT, severe thunderstorms were located along a line
extending from 6 miles east of Fulton to near Vienna, moving east
at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters reported trees blown over in
Meta.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Washington, Union, Warrenton, Sullivan, St. Clair, Wright City,
Owensville, Hermann, New Haven, Linn, Belle, Gerald, Marthasville,
Jonesburg, Truesdale, Innsbrook, Bland, Parkway, Rosebud and
Chamois.
This includes the following highways...
Interstate 44 in Missouri between exits 228 and 240.
Interstate 70 in Missouri between exits 179 and 200.
This also includes Deutschheim Historic Site.
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 700 PM CDT for central and
east central Missouri.
LAT...LON 3891 9181 3887 9096 3821 9097 3822 9164
3829 9165 3829 9190
TIME...MOT...LOC 2035Z 278DEG 33KT 3883 9184 3822 9192
HAIL...<.75IN
WIND...60MPH
$$
CVKING2 follow-up statements
030 WWUS53 KLSX 272106 SVSLSX Severe Weather Statement National Weather Service St Louis MO 406 PM CDT SAT MAY 27 2017 MOC027-151-272116- /O.CAN.KLSX.SV.W.0101.000000T0000Z-170527T2130Z/ Callaway MO-Osage MO- 406 PM CDT SAT MAY 27 2017 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CALLAWAY AND EASTERN OSAGE COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A tornado watch remains in effect until 700 PM CDT for east central Missouri. A severe thunderstorm watch remains in effect until 900 PM CDT for east central Missouri. LAT...LON 3887 9096 3821 9097 3822 9149 3890 9155 TIME...MOT...LOC 2106Z 259DEG 62KT 3886 9141 3823 9140 $$ MOC071-073-139-219-272130- /O.CON.KLSX.SV.W.0101.000000T0000Z-170527T2130Z/ Montgomery MO-Franklin MO-Warren MO-Gasconade MO- 406 PM CDT SAT MAY 27 2017 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR SOUTHEASTERN MONTGOMERY...FRANKLIN...WARREN AND EASTERN GASCONADE COUNTIES... At 406 PM CDT, severe thunderstorms were located along a line extending from near New Florence to 9 miles southeast of Owensville, moving east at 70 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Washington, Union, Warrenton, Sullivan, St. Clair, Wright City, Owensville, Hermann, New Haven, Gerald, Marthasville, Jonesburg, Truesdale, Innsbrook, Parkway, Rosebud, Miramiguoa Park, Swiss, Big Spring and Beaufort. This also includes Deutschheim Historic Site. This includes the following highways... Interstate 44 in Missouri between exits 228 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 700 PM CDT for east central Missouri. LAT...LON 3887 9096 3821 9097 3822 9149 3890 9155 TIME...MOT...LOC 2106Z 259DEG 62KT 3886 9141 3823 9140 HAIL...<.75IN WIND...60MPH $$ CVKING
917 WWUS53 KLSX 272113 SVSLSX Severe Weather Statement National Weather Service St Louis MO 413 PM CDT SAT MAY 27 2017 MOC073-272123- /O.CAN.KLSX.SV.W.0101.000000T0000Z-170527T2130Z/ Gasconade MO- 413 PM CDT SAT MAY 27 2017 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN GASCONADE COUNTY IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A tornado watch remains in effect until 700 PM CDT for east central Missouri. A severe thunderstorm watch remains in effect until 900 PM CDT for east central Missouri. LAT...LON 3889 9138 3887 9096 3840 9097 3833 9136 TIME...MOT...LOC 2113Z 278DEG 33KT 3885 9134 3822 9133 $$ MOC071-139-219-272130- /O.CON.KLSX.SV.W.0101.000000T0000Z-170527T2130Z/ Montgomery MO-Franklin MO-Warren MO- 413 PM CDT SAT MAY 27 2017 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR EAST CENTRAL MONTGOMERY...NORTHWESTERN FRANKLIN AND WARREN COUNTIES... At 413 PM CDT, severe thunderstorms were located along a line extending from near Jonesburg to 6 miles northwest of Bourbon, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Washington, Union, Warrenton, Wright City, New Haven, Gerald, Marthasville, Jonesburg, Truesdale, Innsbrook, Beaufort, Treloar, Dutzow, Foristell, Berger, High Hill, Leslie, Noser Mill, Lyon and Holstein. This includes 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 700 PM CDT for east central Missouri. LAT...LON 3889 9138 3887 9096 3840 9097 3833 9136 TIME...MOT...LOC 2113Z 278DEG 33KT 3885 9134 3822 9133 HAIL...<.75IN WIND...60MPH $$ CVKING
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 11:37 AM CDT | Special Weather Statement | LSX | Gasconade | 38 min |
| May 27, 11:51 AM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Osage | 39 min |
| May 27, 12:31 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Gasconade, Washington | 44 min |
| May 27, 12:55 PM CDT | Tornado Warning | LSX | Crawford | 11 min |
| May 27, 1:14 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 46 min |
| May 27, 1:21 PM CDT | Tornado Warning | LSX | Cole, Osage | 39 min |
| May 27, 1:33 PM CDT | Special Weather Statement | LSX | Sainte Genevieve | 42 min |
| May 27, 1:39 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 37 min |
| May 27, 1:44 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 61 min |
| May 27, 1:48 PM CDT | Severe Thunderstorm Warning | LSX | Cole, Osage | 42 min |
| May 27, 1:52 PM CDT | Tornado Warning | LSX | Reynolds | 38 min |
| May 27, 1:56 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis, City of Saint Louis | 23 min |
| May 27, 1:58 PM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 51 min |
| May 27, 2:24 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Cole, Moniteau | 51 min |
| May 27, 2:27 PM CDT | Tornado Warning | LSX | Reynolds | 48 min |
| May 27, 2:58 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Cole, Osage | 47 min |
| May 27, 3:10 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 54 min |
| May 27, 3:37 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 53 min |
| May 27, 4:06 PM CDT | Tornado Warning | LSX | Crawford, Iron, Reynolds, Washington | 54 min |
| May 27, 4:12 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis, Warren | 34 min |
| May 27, 4:19 PM CDT | Severe Thunderstorm Warning | LSX | Iron, Reynolds | 56 min |
| May 27, 4:45 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Sainte Genevieve, Saint Francois | 45 min |
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.