Alert archive / Missouri / Tornado Warnings in 2019

Tornado Warning 43, NWS St. Louis, MO

August 26, 2019Gasconade County, Montgomery County, Warren County, Missouri

NWS St. Louis, MO issued this tornado warning at Aug 26, 2019, 1:51 AM CDT for Gasconade County, Montgomery County, Warren County, Missouri. It was in force for 24 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
Aug 26, 2019, 1:51 AM CDT (06:51 UTC)
Expired
Aug 26, 2019, 2:15 AM CDT
In force
24 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

Counties Gasconade County, MO, Montgomery County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 61 km from the middle of the area, began a volume at 06:56 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 00:00Z, 6.9 hours before the alert went out and 287 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2019-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2019-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1135 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

214 
WFUS53 KLSX 260651
TORLSX
MOC073-139-219-260715-
/O.NEW.KLSX.TO.W.0043.190826T0651Z-190826T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
151 AM CDT Mon Aug 26 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  South central Montgomery County in east central Missouri...
  West central Warren County in east central Missouri...
  Northeastern Gasconade County in east central Missouri...

* Until 215 AM CDT.
    
* At 151 AM CDT, a severe thunderstorm capable of producing a tornado
  was located over Hermann, moving northeast at 25 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 dangerous storm will be near...
  Hermann around 200 AM CDT.

Other locations impacted by this tornadic thunderstorm include
McKittrick.

This also includes Deutschheim Historic Site.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid 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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3872 9151 3884 9141 3884 9136 3873 9125
      3871 9131 3871 9133 3870 9134 3870 9137
      3866 9137 3860 9148
TIME...MOT...LOC 0651Z 229DEG 20KT 3867 9146 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

BSH

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 9:41 PM CDTRiver Flood WarningLSXGasconade, Montgomery11 days
Aug 26, 12:47 AM CDTAreal Flood AdvisoryLSXAudrain, Callaway, Montgomery3 hr
Aug 26, 12:59 AM CDTSpecial Weather StatementLSXLincoln46 min
Aug 26, 1:33 AM CDTSpecial Weather StatementLSXLincoln42 min
Aug 26, 1:41 AM CDTTornado Warning Tornado observedLSXLincoln34 min
Aug 26, 1:55 AM CDTFlash Flood WarningLSXMontgomery, Warren6 hr
Aug 26, 2:10 AM CDTTornado Warning Tornado observedLSXLincoln, Pike35 min
Aug 26, 3:26 AM CDTFlash Flood WarningLSXLincoln, Warren6 hr
Aug 26, 4:15 AM CDTFlash Flood WarningLSXFranklin, Warren6 hr
Aug 26, 5:33 AM CDTAreal Flood AdvisoryLSXFranklin, Saint Charles, Saint Louis, City of Saint Louis3 hr
Aug 26, 6:21 AM CDTFlash Flood WarningLSXFranklin, Jefferson, Saint Charles, Saint Louis, City of Saint Louis4 hr
Aug 26, 10:28 AM CDTAreal Flood AdvisoryLSXFranklin, Jefferson, Saint Louis3 hr
Aug 26, 10:48 AM CDTRiver Flood WarningLSXFranklin, Warren10 hr
Aug 26, 10:48 AM CDTRiver Flood WarningLSXSaint Charles, Saint Louis10 days
Aug 26, 12:49 PM CDTRiver Flood WarningLSXLincoln10 hr
Aug 26, 2:08 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Gasconade, Osage67 min
Aug 26, 3:04 PM CDTSevere Thunderstorm WarningLSXCrawford, Franklin, Iron, Jefferson, Reynolds, Saint Francois and 1 more42 min
Aug 26, 4:54 PM CDTSpecial Weather StatementLSXCarter21 min

Nearby

Tornado Warnings in Missouri, 2019Every tornado warning in 2019Tornadoes in 2019

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.