Alert archive / Missouri / Red Flag Warnings in 2016

Red Flag Warning 1, NWS St. Louis, MO

March 16, 201620 counties in Missouri; 5 counties in Illinois

NWS St. Louis, MO issued this red flag warning at Mar 16, 2016, 3:55 AM CDT for 20 counties in Missouri; 5 counties in Illinois. It took effect at Mar 16, 2016, 1:00 PM CDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 16, 2016, 3:55 AM CDT (08:55 UTC)
In effect from
Mar 16, 2016, 1:00 PM CDT
Expired
Mar 16, 2016, 8:00 PM CDT
In force
7 hr
Issued by
NWS St. Louis, MO
All 25 counties

Calhoun County, IL, Jersey County, IL, Madison County, IL, Monroe County, IL, Saint Clair County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Franklin County, MO, Gasconade County, MO, Jefferson County, MO, Lincoln County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Saint Charles County, MO, Saint Louis County, MO, Shelby County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 51 km from the middle of the area, began a volume at 08:57 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, 8.9 hours before the alert went out and 264 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 2016-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1364 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.1939587897117Sfc1 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
1364 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1257 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
241 m²/s²
Significant tornado parameter
1.2
Supercell composite
8.9

Open this sounding in Storm Lab

The text

As transmitted.

454 
WWUS83 KLSX 160855
RFWLSX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
355 AM CDT WED MAR 16 2016

ILZ098>102-MOZ026-027-034>036-041-042-047>052-059>065-162200-
/O.NEW.KLSX.FW.W.0001.160316T1800Z-160317T0100Z/
AUDRAIN MO-BOONE MO-CALHOUN IL-CALLAWAY MO-COLE MO-FRANKLIN MO-
GASCONADE MO-JEFFERSON MO-JERSEY IL-LINCOLN MO-MADISON IL-
MARION MO-MONITEAU MO-MONROE IL-MONROE MO-MONTGOMERY MO-OSAGE MO-
PIKE MO-RALLS MO-SAINT CHARLES MO-SAINT CLAIR IL-
SAINT LOUIS CITY MO-SAINT LOUIS MO-SHELBY MO-WARREN MO-
355 AM CDT WED MAR 16 2016

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR MUCH OF
CENTRAL AND EAST-CENTRAL MISSOURI AS WELL AS PARTS OF NORTHEAST
MISSOURI AND SOUTHWEST ILLINOIS...

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING.

* AFFECTED AREA...IN ILLINOIS...FIRE WEATHER ZONES 098...099... 
  100...101 AND 102. IN MISSOURI...FIRE WEATHER ZONES 026...
  027... 034...035...036...041...042...047...048...049...050...
  051...052... 059...060...061...062...063...064 AND 065.

* 20FT WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* 10HR FUELS...LESS THAN 9 PERCENT.

* IMPACTS...THESE CONDITIONS ARE CONDUCIVE FOR THE RAPID SPREAD 
  AND GROWTH OF UNCONTROLLED WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND DRY FUELS CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

TES
2 follow-up statements
371 
WWUS83 KLSX 162116
RFWLSX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
416 PM CDT WED MAR 16 2016

ILZ098>102-MOZ026-027-034>036-041-042-047>052-059>065-170100-
/O.CON.KLSX.FW.W.0001.000000T0000Z-160317T0100Z/
AUDRAIN MO-BOONE MO-CALHOUN IL-CALLAWAY MO-COLE MO-FRANKLIN MO-
GASCONADE MO-JEFFERSON MO-JERSEY IL-LINCOLN MO-MADISON IL-
MARION MO-MONITEAU MO-MONROE IL-MONROE MO-MONTGOMERY MO-OSAGE MO-
PIKE MO-RALLS MO-SAINT CHARLES MO-SAINT CLAIR IL-
SAINT LOUIS CITY MO-SAINT LOUIS MO-SHELBY MO-WARREN MO-
416 PM CDT WED MAR 16 2016

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR CENTRAL AND EAST CENTRAL
MISSOURI AS WELL AS WEST CENTRAL ILLINOIS...

* AFFECTED AREA...IN ILLINOIS...FIRE WEATHER ZONES 098...099... 
  100...101 AND 102. IN MISSOURI...FIRE WEATHER ZONES 026...
  027... 034...035...036...041...042...047...048...049...050...
  051...052... 059...060...061...062...063...064 AND 065.

* 20FT WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 21 PERCENT.

* 10HR FUELS...LESS THAN 9 PERCENT.

* IMPACTS...THESE CONDITIONS ARE CONDUCIVE FOR THE RAPID SPREAD 
  AND GROWTH OF UNCONTROLLED WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND DRY FUELS CAN
CONTRIBUTE TO EXTREME FIRE BEHAVIOR.

&&

$$

CARNEY
961 
WWUS83 KLSX 170100
RFWLSX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE ST LOUIS MO
800 PM CDT WED MAR 16 2016

ILZ098>102-MOZ026-027-034>036-041-042-047>052-059>065-170200-
/O.EXP.KLSX.FW.W.0001.000000T0000Z-160317T0100Z/
AUDRAIN MO-BOONE MO-CALHOUN IL-CALLAWAY MO-COLE MO-FRANKLIN MO-
GASCONADE MO-JEFFERSON MO-JERSEY IL-LINCOLN MO-MADISON IL-
MARION MO-MONITEAU MO-MONROE IL-MONROE MO-MONTGOMERY MO-OSAGE MO-
PIKE MO-RALLS MO-SAINT CHARLES MO-SAINT CLAIR IL-
SAINT LOUIS CITY MO-SAINT LOUIS MO-SHELBY MO-WARREN MO-
800 PM CDT WED MAR 16 2016

...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING FOR WIND
AND LOW RELATIVE HUMIDITY FOR PARTS OF CENTRAL AND EAST CENTRAL
MISSOURI AS WELL AS SOUTHWEST ILLINOIS...

CONDITIONS THAT ARE FAVORABLE FOR THE RAPID SPREAD OF WILDFIRES
HAVE DECREASED...SO THE RED FLAG WARNING WILL BE ALLOWED TO
EXPIRE.

$$

BRITT

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 7:31 PM CDTSevere Thunderstorm WarningLSXBond, Clinton, Madison, Saint Clair27 min

Nearby

Red Flag Warnings in Missouri, 2016Red Flag Warnings in Illinois, 2016Every red flag warning in 2016

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.