Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 446, NWS St. Louis, MO

July 3, 2011Iron County, Reynolds County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 3, 2011, 5:25 PM CDT for Iron County, Reynolds County, Missouri. It was in force for 35 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
Jul 3, 2011, 5:25 PM CDT (22:25 UTC)
Expired
Jul 3, 2011, 6:00 PM CDT
In force
35 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Iron County, MO, Reynolds County, MO

The radar

The St Louis radar (KLSX), 138 km from the middle of the area, began a volume at 22:28 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.4 hours before the alert went out and 245 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, Springfield, MO at 12:00Z on 2011-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1800 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2011-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -42 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
1800 J/kg
Mixed-layer CIN
-118 J/kg
Mixed-layer LCL
1453 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-42 m²/s²
0-3 km storm-relative helicity
-15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

705 
WUUS53 KLSX 032225
SVRLSX
MOC093-179-032300-
/O.NEW.KLSX.SV.W.0446.110703T2225Z-110703T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
525 PM CDT SUN JUL 3 2011

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  IRON COUNTY IN SOUTHEAST MISSOURI...
  NORTHERN REYNOLDS COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 600 PM CDT

* AT 524 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BUNKER...OR 23 MILES SOUTHEAST OF SALEM...AND MOVING EAST AT 15
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  OATES AND BLACK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3741 9118 3742 9122 3750 9122 3750 9126
      3757 9129 3759 9121 3759 9116 3761 9116
      3770 9091 3749 9082 3740 9118
TIME...MOT...LOC 2225Z 250DEG 15KT 3751 9115
WIND...HAIL 60MPH 1.00IN

$$

CARNEY
2 follow-up statements
689 
WWUS53 KLSX 032244
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
544 PM CDT SUN JUL 3 2011

MOC093-179-032300-
/O.CON.KLSX.SV.W.0446.000000T0000Z-110703T2300Z/
IRON MO-REYNOLDS MO-
544 PM CDT SUN JUL 3 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
REYNOLDS AND IRON COUNTIES UNTIL 600 PM CDT...

AT 541 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES
SOUTHWEST OF OATES...OR 25 MILES SOUTHEAST OF SALEM...MOVING EAST AT
15 MPH.

LOCATIONS IMPACTED INCLUDE...
  OATES AND BLACK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3741 9118 3742 9122 3750 9122 3750 9126
      3757 9129 3759 9121 3759 9116 3761 9116
      3770 9091 3749 9082 3740 9118
TIME...MOT...LOC 2244Z 255DEG 13KT 3751 9110
WIND...HAIL 60MPH 1.00IN

$$

CARNEY
108 
WWUS53 KLSX 032259
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
559 PM CDT SUN JUL 3 2011

MOC093-179-032309-
/O.EXP.KLSX.SV.W.0446.000000T0000Z-110703T2300Z/
IRON MO-REYNOLDS MO-
559 PM CDT SUN JUL 3 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN REYNOLDS AND IRON
COUNTIES WILL EXPIRE AT 600 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3741 9118 3742 9122 3750 9122 3750 9126
      3757 9129 3759 9121 3759 9116 3761 9116
      3770 9091 3749 9082 3740 9118
TIME...MOT...LOC 2259Z 255DEG 13KT 3752 9103

$$

CARNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 1:18 PM CDTSevere Thunderstorm WarningLSXFranklin, Gasconade42 min
Jul 3, 1:29 PM CDTSevere Thunderstorm WarningLSXFranklin, Saint Charles, Saint Louis, Warren46 min
Jul 3, 1:29 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Washington46 min
Jul 3, 1:41 PM CDTSevere Thunderstorm WarningLSXBoone49 min
Jul 3, 1:54 PM CDTSevere Thunderstorm WarningLSXFranklin51 min
Jul 3, 2:02 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway58 min
Jul 3, 2:12 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Charles, Saint Louis48 min
Jul 3, 2:13 PM CDTSevere Thunderstorm WarningLSXFranklin47 min
Jul 3, 2:16 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve, Saint Francois44 min
Jul 3, 2:22 PM CDTSevere Thunderstorm WarningLSXSaint Francois20 min
Jul 3, 2:24 PM CDTSevere Thunderstorm WarningLSXFranklin, Warren51 min
Jul 3, 2:29 PM CDTSevere Thunderstorm WarningLSXCole, Osage46 min
Jul 3, 2:33 PM CDTSevere Thunderstorm WarningLSXCallaway42 min
Jul 3, 2:34 PM CDTSevere Thunderstorm WarningLSXJefferson, Saint Louis26 min
Jul 3, 2:50 PM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Charles, Saint Louis, Warren, City of Saint Louis40 min
Jul 3, 2:51 PM CDTSevere Thunderstorm WarningLSXCallaway, Osage24 min
Jul 3, 2:55 PM CDTSevere Thunderstorm WarningLSXCallaway, Franklin, Gasconade, Montgomery, Warren35 min
Jul 3, 3:05 PM CDTSevere Thunderstorm WarningLSXCallaway, Gasconade, Montgomery, Osage25 min
Jul 3, 3:24 PM CDTAreal Flood AdvisoryLSXSainte Genevieve, Saint Louis6 hr
Jul 3, 3:26 PM CDTSevere Thunderstorm WarningLSXCallaway, Franklin, Gasconade, Lincoln, Montgomery, Osage and 2 more64 min
Jul 3, 3:56 PM CDTSevere Thunderstorm WarningLSXLincoln, Saint Charles, Saint Louis49 min
Jul 3, 4:34 PM CDTAreal Flood AdvisoryLSXFranklin, Lincoln, Saint Charles, Warren5 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2011Every severe thunderstorm warning in 2011

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.