Alert archive / Minnesota / Red Flag Warnings in 2018

Red Flag Warning 2, NWS Twin Cities, MN

April 29, 201832 counties in Minnesota; 5 counties in Wisconsin

NWS Twin Cities, MN issued this red flag warning at Apr 29, 2018, 3:42 AM CDT for 32 counties in Minnesota; 5 counties in Wisconsin. It took effect at Apr 29, 2018, 1:00 PM CDT. It was in force for 8 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
Apr 29, 2018, 3:42 AM CDT (08:42 UTC)
In effect from
Apr 29, 2018, 1:00 PM CDT
Expired
Apr 29, 2018, 9:00 PM CDT
In force
8 hr
Issued by
NWS Twin Cities, MN
All 37 counties

Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Todd County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Dunn County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 1 km from the middle of the area, began a volume at 08:41 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

Minneapolis, MN (KMPX), launched 00:00Z, 8.7 hours before the alert went out and 2 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, Minneapolis, MN at 00:00Z on 2018-04-29Temperature 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, Minneapolis, MN at 00:00Z on 2018-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -48 square meters per square second.19395878Sfc1 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
2202 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-48 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

501 
WWUS83 KMPX 290842
RFWMPX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
342 AM CDT Sun Apr 29 2018

...CRITICAL FIRE WEATHER CONDITIONS LIKELY THIS AFTERNOON ACROSS 
EASTERN MINNESOTA AND FAR WESTERN WISCONSIN...

.Dangerous fire weather conditions are likely over much of
eastern Minnesota and western Wisconsin this afternoon. South 
winds of 15 to 25 mph with gusts of 30 to 35 mph are expected as 
humidity levels drop to less than 25 percent. A Red Flag Warning 
is in effect for these areas.

Western Minnesota will have stronger winds with gusts around 40
mph, but minimum RH may not drop as low as 25 percent. A Fire
Weather Watch is in effect due to the possibility of lower
humidity values materializing.

WIZ015-290945-
/O.CAN.KMPX.FW.A.0002.180429T1800Z-180430T0000Z/
Barron-
342 AM CDT Sun Apr 29 2018

...FIRE WEATHER WATCH IS CANCELLED FOR BARRON COUNTY...

The National Weather Service in Twin Cities/Chanhassen has
cancelled the Fire Weather Watch. 

Despite minimum relative humidity values in the 15 to 20 percent
range, winds are not expected to meet criteria for critical fire 
weather conditions. Still, any fires that develop will likely 
spread quickly.

$$

MNZ043>045-050>053-059>063-068>070-076>078-084-085-093-WIZ014-
023>026-291800-
/O.UPG.KMPX.FW.A.0002.180429T1800Z-180430T0000Z/
/O.NEW.KMPX.FW.W.0002.180429T1800Z-180430T0000Z/
Morrison-Mille Lacs-Kanabec-Benton-Sherburne-Isanti-Chisago-
Wright-Hennepin-Anoka-Ramsey-Washington-Carver-Scott-Dakota-
Le Sueur-Rice-Goodhue-Waseca-Steele-Freeborn-Polk-St. Croix-
Pierce-Dunn-Pepin-
342 AM CDT Sun Apr 29 2018

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Red Flag Warning, which is in effect from 1 PM this afternoon
to 7 PM CDT this evening. The Fire Weather Watch is no longer in
effect. 

* AFFECTED AREA...Eastern Minnesota and far western Wisconsin.

* WIND...South 15 to 20 mph with gusts near 30 mph.

* HUMIDITY...Minimum RH of 18 to 25 percent.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 warm temperatures can
contribute to extreme fire behavior.

&&

$$

MNZ042-049-058-066-067-075-083-092-291800-
/O.NEW.KMPX.FW.W.0002.180429T1800Z-180430T0000Z/
Todd-Stearns-Meeker-McLeod-Sibley-Nicollet-Blue Earth-Faribault-
342 AM CDT Sun Apr 29 2018

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Red Flag Warning, which is in effect from 1 PM this afternoon
to 7 PM CDT this evening. 

* AFFECTED AREA...Most of central and south central Minnesota.

* WIND...South 15 to 25 mph with gusts near 35 mph.

* HUMIDITY...Minimum RH around 25 percent.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 warm temperatures can
contribute to extreme fire behavior.

&&

$$

MNZ041-047-048-054>057-064-065-073-074-082-091-291800-
/O.NEW.KMPX.FW.A.0003.180429T1800Z-180430T0000Z/
Douglas-Stevens-Pope-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Yellow Medicine-Renville-Redwood-Brown-Watonwan-Martin-
342 AM CDT Sun Apr 29 2018

...FIRE WEATHER WATCH IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING FOR STRONG WINDS AND LOW HUMIDITY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Fire Weather Watch, which is in effect from 1 PM CDT this
afternoon through this evening. 

* AFFECTED AREA...Western Minnesota. 

* WIND...South 20 to 30 mph with gusts near 40 mph.

* HUMIDITY...Minimum RH 25 to 30 percent. 

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

Borghoff
4 follow-up statements
786 
WWUS83 KMPX 291621
RFWMPX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1121 AM CDT Sun Apr 29 2018

...CRITICAL FIRE WEATHER CONDITIONS LIKELY THIS AFTERNOON ACROSS
EASTERN MINNESOTA AND FAR WESTERN WISCONSIN...

.Dangerous fire weather conditions are likely over much of
eastern Minnesota and western Wisconsin this afternoon. South
winds of 15 to 25 mph with gusts of 35 mph are expected as 
humidity levels drop to less than 25 percent. A Red Flag Warning 
is in effect for these areas.

Western Minnesota will have stronger winds with gusts around
40 mph, but minimum RH may not drop as low as 25 percent. A Fire
Weather Watch remains in effect due to the possibility of lower 
humidity values materializing.

MNZ042>045-049>053-058>063-066>070-075>078-083>085-092-093-WIZ014-
023>026-300000-
/O.CON.KMPX.FW.W.0002.180429T1800Z-180430T0000Z/
Todd-Morrison-Mille Lacs-Kanabec-Stearns-Benton-Sherburne-Isanti-
Chisago-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-
Sibley-Carver-Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-
Blue Earth-Waseca-Steele-Faribault-Freeborn-Polk-St. Croix-Pierce-
Dunn-Pepin-
1121 AM CDT Sun Apr 29 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
FOR STRONG WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Most of central and south central Minnesota.

* WIND...South 15 to 25 mph with gusts near 35 mph.

* HUMIDITY...Minimum RH around 25 percent.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 warm temperatures can
contribute to extreme fire behavior.

&&

$$

MNZ041-047-048-054>057-064-065-073-074-082-091-300000-
/O.CON.KMPX.FW.A.0003.180429T1800Z-180430T0000Z/
Douglas-Stevens-Pope-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Yellow Medicine-Renville-Redwood-Brown-Watonwan-Martin-
1121 AM CDT Sun Apr 29 2018

...FIRE WEATHER WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING FOR STRONG WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Western Minnesota.

* WIND...South 20 to 30 mph with gusts near 40 mph.

* HUMIDITY...Minimum RH 25 to 30 percent.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$
307 
WWUS83 KMPX 291857
RFWMPX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
157 PM CDT Sun Apr 29 2018

...CRITICAL FIRE WEATHER CONDITIONS LIKELY THIS AFTERNOON ACROSS
EASTERN MINNESOTA AND FAR WESTERN WISCONSIN...

.Dangerous fire weather conditions are likely over much of
eastern Minnesota and western Wisconsin this afternoon. South
winds of 15 to 25 mph with gusts of 35 mph are expected as
humidity levels drop to less than 25 percent. A Red Flag Warning
is in effect for these areas.

Western Minnesota will have stronger winds with gusts around
40 mph, but minimum RH may not drop as low as 25 percent. A Fire
Weather Watch remains in effect due to the possibility of lower
humidity values materializing.

MNZ074-082-091-300000-
/O.UPG.KMPX.FW.A.0003.000000T0000Z-180430T0000Z/
/O.EXA.KMPX.FW.W.0002.000000T0000Z-180430T0000Z/
Brown-Watonwan-Martin-
157 PM CDT Sun Apr 29 2018

...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Red Flag Warning, which is in effect until 7 PM CDT this
evening. The Fire Weather Watch is no longer in effect. 

* AFFECTED AREA...part of south central Minnesota.

* WIND...South 25 to 30 mph with gusts near 35 mph.

* HUMIDITY...Minimum RH to 25.

* IMPACTS...any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended

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 warm temperatures can
contribute to extreme fire behavior.

&&

$$

MNZ042>045-049>053-058>063-066>070-075>078-083>085-092-093-WIZ014-
023>026-300000-
/O.CON.KMPX.FW.W.0002.000000T0000Z-180430T0000Z/
Todd-Morrison-Mille Lacs-Kanabec-Stearns-Benton-Sherburne-Isanti-
Chisago-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-
Sibley-Carver-Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-
Blue Earth-Waseca-Steele-Faribault-Freeborn-Polk-St. Croix-Pierce-
Dunn-Pepin-
157 PM CDT Sun Apr 29 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
FOR STRONG WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Most of central and south central Minnesota.

* WIND...South 15 to 25 mph with gusts near 35 mph.

* HUMIDITY...Minimum RH around 25 percent.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 warm temperatures can
contribute to extreme fire behavior.

&&

$$

MNZ041-047-048-054>057-064-065-073-300000-
/O.CON.KMPX.FW.A.0003.000000T0000Z-180430T0000Z/
Douglas-Stevens-Pope-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Yellow Medicine-Renville-Redwood-
157 PM CDT Sun Apr 29 2018

...FIRE WEATHER WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING FOR STRONG WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Western Minnesota.

* WIND...South 20 to 30 mph with gusts near 40 mph.

* HUMIDITY...Minimum RH 25 to 30 percent.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$
987 
WWUS83 KMPX 292359
RFWMPX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
659 PM CDT Sun Apr 29 2018

...CRITICAL FIRE WEATHER CONDITIONS LIKELY THIS AFTERNOON ACROSS
EASTERN MINNESOTA AND FAR WESTERN WISCONSIN...

.Dangerous fire weather conditions will continue through 9 PM
across eastern Minnesota and western Wisconsin. South winds of 15
to 25 mph with gusts of 35 mph are expected as humidity levels 
drop to less than 25 percent. A Red Flag Warning is in effect for 
these areas.

MNZ041-047-048-054>057-064-065-073-300100-
/O.EXP.KMPX.FW.A.0003.000000T0000Z-180430T0000Z/
Douglas-Stevens-Pope-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Yellow Medicine-Renville-Redwood-
659 PM CDT Sun Apr 29 2018

...FIRE WEATHER WATCH WILL EXPIRE AT 7 PM CDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITY...

Humidity levels have increased, but breezy conditions will
continue.

$$

MNZ042>045-049>053-058>063-066>070-074>078-082>085-091>093-WIZ014-
023>026-300200-
/O.EXT.KMPX.FW.W.0002.000000T0000Z-180430T0200Z/
Todd-Morrison-Mille Lacs-Kanabec-Stearns-Benton-Sherburne-Isanti-
Chisago-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-
Sibley-Carver-Scott-Dakota-Brown-Nicollet-Le Sueur-Rice-Goodhue-
Watonwan-Blue Earth-Waseca-Steele-Martin-Faribault-Freeborn-Polk-
St. Croix-Pierce-Dunn-Pepin-
659 PM CDT Sun Apr 29 2018

...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Most of central and south central Minnesota.

* WIND...South 15 to 25 mph with gusts near 35 mph.

* HUMIDITY...Minimum RH around 25 percent.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 warm temperatures can
contribute to extreme fire behavior.

&&

$$

jrb
435 
WWUS83 KMPX 300148
RFWMPX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
848 PM CDT Sun Apr 29 2018

...The Red Flag Warning will expire at 9 PM CDT...

.Winds have subsided and relative humidity has increased.

MNZ042>045-049>053-058>063-066>070-074>078-082>085-091>093-WIZ014-
023>026-300300-
/O.EXP.KMPX.FW.W.0002.000000T0000Z-180430T0200Z/
Todd-Morrison-Mille Lacs-Kanabec-Stearns-Benton-Sherburne-Isanti-
Chisago-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-
Sibley-Carver-Scott-Dakota-Brown-Nicollet-Le Sueur-Rice-Goodhue-
Watonwan-Blue Earth-Waseca-Steele-Martin-Faribault-Freeborn-Polk-
St. Croix-Pierce-Dunn-Pepin-
848 PM CDT Sun Apr 29 2018

...RED FLAG WARNING WILL EXPIRE AT 9 PM CDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITY...

Winds have subsided and relative humidity has increased..

$$

jrb

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 29, 3:42 AM CDTFire Weather WatchMPXBrown, Chippewa, Douglas, Kandiyohi, Lac qui Parle, Martin and 7 more15 hr
Apr 29, 3:45 AM CDTWind AdvisoryMPXChippewa, Lac qui Parle, Stevens, Swift, Yellow Medicine15 hr

Nearby

Red Flag Warnings in Minnesota, 2018Red Flag Warnings in Wisconsin, 2018Every red flag warning in 2018

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.