Alert archive / Minnesota / Red Flag Warnings in 2018

Red Flag Warning 3, NWS Grand Forks, ND

April 29, 20184 counties in Minnesota

NWS Grand Forks, ND issued this red flag warning at Apr 29, 2018, 4:12 AM CDT for 4 counties in Minnesota. It took effect at Apr 29, 2018, 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
Apr 29, 2018, 4:12 AM CDT (09:12 UTC)
In effect from
Apr 29, 2018, 1:00 PM CDT
Expired
Apr 29, 2018, 8:00 PM CDT
In force
7 hr
Issued by
NWS Grand Forks, ND

Counties Beltrami County, MN, Hubbard County, MN, Lake of the Woods County, MN, Wadena County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 180 km from the middle of the area, began a volume at 09:17 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

International Fa, MN (KINL), launched 00:00Z, 9.2 hours before the alert went out and 162 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, International Fa, 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, International Fa, MN at 00:00Z on 2018-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
2483 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

507 
WWUS83 KFGF 290912
RFWFGF

URGENT - FIRE WEATHER MESSAGE
National Weather Service Grand Forks ND
412 AM CDT Sun Apr 29 2018

MNZ006-009-017-024-032-300100-
/O.NEW.KFGF.FW.W.0003.180429T1800Z-180430T0100Z/
Lake Of The Woods-North Beltrami-South Beltrami-Hubbard-Wadena-
412 AM CDT Sun Apr 29 2018

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING FOR STRONG WINDS AND LOW HUMIDITIES FOR PARTS OF
NORTHWEST MINNESOTA...

The National Weather Service in Grand Forks has issued a Red Flag
Warning for critical fire weather conditions, which is in effect 
from 1 PM this afternoon to 8 PM CDT this evening.

* AFFECTED AREA...In Minnesota...Fire Weather Zones 006...009... 
  017...024 and 032.

* WINDS...South 15 to 25 mph with gusts up to 40 mph.

* TIMING...Sunday afternoon through early Sunday evening.

* RELATIVE HUMIDITY...As low as 22 percent.

* TEMPERATURES...In the middle to upper 60s.

* IMPACTS...Any fires that develop will spread quickly.

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.

&&

$$

MNZ001>005-007-008-013>016-022-023-027>031-040-300100-
/O.NEW.KFGF.FW.A.0002.180429T1800Z-180430T0100Z/
West Polk-Norman-Clay-Kittson-Roseau-West Marshall-East Marshall-
Pennington-Red Lake-East Polk-North Clearwater-Mahnomen-
South Clearwater-West Becker-East Becker-Wilkin-West Otter Tail-
East Otter Tail-Grant-
412 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 RELATIVE HUMIDITIES 
FOR PARTS OF NORTHWEST MINNESOTA...

The National Weather Service in Grand Forks has issued a Fire
Weather Watch for possible critical fire weather conditions, 
which is in effect from 1 PM CDT this afternoon through this 
evening.

* AFFECTED AREA...In Minnesota...Fire Weather Zones 001...002... 
  003...004...005...007...008...013...014...015...016...022...
  023... 027...028...029...030...031 and 040.

* WINDS...South 25 to 35 mph with gusts around 45 mph.

* TIMING...Sunday afternoon through early Sunday evening.

* RELATIVE HUMIDITY...As low as 28 percent.

* TEMPERATURES...In the upper 60s to middle 70s.

* IMPACTS...Any fires that develop will spread quickly.

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.

&&

$$
2 follow-up statements
679 
WWUS83 KFGF 291647
RFWFGF

URGENT - FIRE WEATHER MESSAGE
National Weather Service Grand Forks ND
1147 AM CDT Sun Apr 29 2018

MNZ006-009-017-024-032-300100-
/O.CON.KFGF.FW.W.0003.180429T1800Z-180430T0100Z/
Lake Of The Woods-North Beltrami-South Beltrami-Hubbard-Wadena-
1147 AM CDT Sun Apr 29 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
FOR STRONG WINDS AND LOW HUMIDITIES FOR PARTS OF NORTHWEST
MINNESOTA...

* AFFECTED AREA...In Minnesota...Fire Weather Zones 006...009... 
  017...024 and 032.

* WINDS...South 15 to 25 mph with gusts up to 40 mph.

* TIMING...Sunday afternoon through early Sunday evening.

* RELATIVE HUMIDITY...As low as 21 percent.

* TEMPERATURES...In the mid 60s.

* IMPACTS...Any fires that develop will spread quickly.

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.

&&

$$

MNZ001>005-007-008-013>016-022-023-027>031-040-300100-
/O.CON.KFGF.FW.A.0002.180429T1800Z-180430T0100Z/
West Polk-Norman-Clay-Kittson-Roseau-West Marshall-East Marshall-
Pennington-Red Lake-East Polk-North Clearwater-Mahnomen-
South Clearwater-West Becker-East Becker-Wilkin-West Otter Tail-
East Otter Tail-Grant-
1147 AM CDT Sun Apr 29 2018

...FIRE WEATHER WATCH REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR PARTS OF
NORTHWEST MINNESOTA...

* AFFECTED AREA...In Minnesota...Fire Weather Zones 001...002... 
  003...004...005...007...008...013...014...015...016...022...
  023... 027...028...029...030...031 and 040.

* WINDS...South 25 to 35 mph with gusts up to 50 mph.

* TIMING...Sunday afternoon through early Sunday evening.

* RELATIVE HUMIDITY...As low as 27 percent.

* TEMPERATURES...In the upper 60s.

* IMPACTS...Any fires that develop will spread quickly.

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.

&&

$$
800 
WWUS83 KFGF 300054
RFWFGF

URGENT - FIRE WEATHER MESSAGE
National Weather Service Grand Forks ND
754 PM CDT Sun Apr 29 2018

MNZ006-009-017-024-032-300200-
/O.EXP.KFGF.FW.W.0003.000000T0000Z-180430T0100Z/
Lake Of The Woods-North Beltrami-South Beltrami-Hubbard-Wadena-
754 PM CDT Sun Apr 29 2018

...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITIES FOR PARTS OF NORTHWEST MINNESOTA...

Humidities have improved and winds have decreased.

$$

MNZ001>005-007-008-013>016-022-023-027>031-040-300200-
/O.EXP.KFGF.FW.A.0002.000000T0000Z-180430T0100Z/
West Polk-Norman-Clay-Kittson-Roseau-West Marshall-East Marshall-
Pennington-Red Lake-East Polk-North Clearwater-Mahnomen-
South Clearwater-West Becker-East Becker-Wilkin-West Otter Tail-
East Otter Tail-Grant-
754 PM CDT Sun Apr 29 2018

...FIRE WEATHER WATCH WILL EXPIRE AT 8 PM CDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITIES FOR PARTS OF NORTHWEST MINNESOTA...

Humidities have improved and winds have decreased.

$$

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 29, 4:06 AM CDTWind AdvisoryFGFBecker, Clay, Grant, Kittson, Mahnomen, Marshall and 6 more16 hr
Apr 29, 4:12 AM CDTFire Weather WatchFGFBecker, Clay, Clearwater, Grant, Kittson, Mahnomen and 8 more16 hr

Nearby

Red Flag Warnings in Minnesota, 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.