Alert archive / Minnesota / Red Flag Warnings in 2010

Red Flag Warning 4, NWS Twin Cities, MN

April 16, 201017 counties in Minnesota

NWS Twin Cities, MN issued this red flag warning at Apr 16, 2010, 4:16 AM CDT for 17 counties in Minnesota. It took effect at Apr 16, 2010, 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 16, 2010, 4:16 AM CDT (09:16 UTC)
In effect from
Apr 16, 2010, 1:00 PM CDT
Expired
Apr 16, 2010, 8:00 PM CDT
In force
7 hr
Issued by
NWS Twin Cities, MN

Counties Anoka County, MN, Benton County, MN, Chisago County, MN, Douglas County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Pope County, MN, Sherburne County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 102 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

Minneapolis, MN (KMPX), launched 00:00Z, 9.3 hours before the alert went out and 100 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 2010-04-16Temperature 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 2010-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
2076 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
126 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.

995 
WWUS83 KMPX 160916
RFWMPX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
416 AM CDT FRI APR 16 2010

...RED FLAG WARNING FROM 1 PM CDT UNTIL 8 PM CDT TODAY FOR MUCH OF
CENTRAL MINNESOTA...

.EXTREMELY LOW RELATIVE HUMIDITY AND GUSTY NORTHERLY WINDS WILL CREATE
VERY DANGEROUS FIRE WEATHER CONDITIONS ACROSS CENTRAL MINNESOTA
THIS AFTERNOON. RELATIVE HUMIDITY WILL DROP TO AROUND 20 PERCENT
THIS AFTERNOON....WITH SOME SITES POSSIBLY DROPPING TO AROUND 15
PERCENT. WINDS WILL ALSO BEGIN TO GUST TO AROUND 30 MPH DURING
THE AFTERNOON. WITH EXTREMELY DRY FUEL CONDITIONS... WILDFIRES
COULD GROW VERY QUICKLY. THE RED FLAG WARNING IS ROUGHLY ALONG AND
NORTH OF AN APPLETON...TO BUFFALO...TO LINDSTROM LINE.

MNZ041>045-047>053-055-057>059-061-161730-
/O.NEW.KMPX.FW.W.0004.100416T1800Z-100417T0100Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-SWIFT-KANDIYOHI-MEEKER-WRIGHT-
ANOKA-
416 AM CDT FRI APR 16 2010

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 8 PM CDT THIS EVENING. 

EXTREMELY LOW RELATIVE HUMIDITY AND GUSTY NORTHERLY WINDS WILL CREATE
VERY DANGEROUS FIRE WEATHER CONDITIONS ACROSS CENTRAL MINNESOTA
THIS AFTERNOON. RELATIVE HUMIDITY WILL DROP TO AROUND 20 PERCENT
THIS AFTERNOON....WITH SOME SITES POSSIBLY DROPPING TO AROUND 15
PERCENT. WINDS WILL ALSO BEGIN TO GUST TO AROUND 30 MPH DURING
THE AFTERNOON. WITH EXTREMELY DRY FUEL CONDITIONS... WILDFIRES
COULD GROW VERY QUICKLY. THE RED FLAG WARNING IS ROUGHLY ALONG AND
NORTH OF AN APPLETON...TO BUFFALO...TO LINDSTROM LINE..

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

MDB
2 follow-up statements
420 
WWUS83 KMPX 162028
RFWMPX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
328 PM CDT FRI APR 16 2010

...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT TODAY FOR MUCH OF
CENTRAL MINNESOTA...
...FIRE WEATHER WATCH IN EFFECT FROM 11 AM CDT UNTIL 7 PM CDT
SATURDAY FOR EAU CLAIRE COUNTY WISCONSIN...

.EXTREMELY LOW RELATIVE HUMIDITY AND GUSTY NORTHERLY WINDS WILL
CREATE VERY DANGEROUS FIRE WEATHER CONDITIONS ACROSS CENTRAL
MINNESOTA THIS AFTERNOON. RELATIVE HUMIDITY HAVE DROPPED TO AROUND
20 PERCENT THIS AFTERNOON....WITH SOME SITES DROPPING TO AROUND 15
PERCENT. NORTHWEST WINDS WILL CONTINUE TO GUST AROUND 30 MPH
THROUGH LATE AFTERNOON. WITH EXTREMELY DRY FUEL CONDITIONS...
WILDFIRES COULD GROW VERY QUICKLY. THE RED FLAG WARNING IS ROUGHLY
ALONG AND NORTH OF AN APPLETON...TO BUFFALO...TO LINDSTROM LINE.

A FIRE WEATHER WATCH HAS BEEN ISSUED FOR EAU CLAIRE COUNTY IN WEST
CENTRAL WISCONSIN FOR LATE SATURDAY MORNING AND SATURDAY
AFTERNOON. NORTHWEST WINDS WILL GUST AROUND 30 MPH AND RELATIVE
HUMIDITY WILL DRY INTO THE TEENS SATURDAY AFTERNOON. THIS WILL
GENERATE CRITICAL FIRE WEATHER CONDITIONS...ESPECIALLY DURING THE
AFTERNOON FOR THIS AREA.

MNZ041>045-047>053-055-057>059-061-170100-
/O.CON.KMPX.FW.W.0004.000000T0000Z-100417T0100Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-SWIFT-KANDIYOHI-MEEKER-WRIGHT-
ANOKA-
328 PM CDT FRI APR 16 2010

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING.

EXTREMELY LOW RELATIVE HUMIDITY AND GUSTY NORTHERLY WINDS WILL
CREATE VERY DANGEROUS FIRE WEATHER CONDITIONS ACROSS CENTRAL
MINNESOTA FOR THE REMAINDER OF THE AFTERNOON. RELATIVE HUMIDITY
HAVE DROPPED TO AROUND 20 PERCENT THIS AFTERNOON....WITH SOME SITES
DROPPING TO AROUND 15 PERCENT. WINDS WILL REMAIN NORTHWEST AND
GUSTY TO AROUND 30 MPH. WITH EXTREMELY DRY FUEL CONDITIONS...
WILDFIRES COULD GROW VERY QUICKLY. THE RED FLAG WARNING IS IN
EFFECT ROUGHLY ALONG AND NORTH OF AN APPLETON...TO BUFFALO...TO
LINDSTROM LINE..

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

WIZ028-170430-
/O.NEW.KMPX.FW.A.0002.100417T1600Z-100418T0000Z/
EAU CLAIRE-
328 PM CDT FRI APR 16 2010

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY EVENING. 

NORTHWEST WINDS WILL GUST AROUND 30 MPH AND RELATIVE HUMIDITY
WILL DROP INTO THE TEENS SATURDAY AFTERNOON ACROSS THE COUNTY.

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.

&&

$$
899 
WWUS83 KMPX 162053
RFWMPX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
353 PM CDT FRI APR 16 2010

...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT TODAY FOR MUCH OF
CENTRAL MINNESOTA... ...FIRE WEATHER WATCH IN EFFECT FROM 11 AM
CDT UNTIL 7 PM CDT SATURDAY FOR EAU CLAIRE AND POLK COUNTY
WISCONSIN...

.EXTREMELY LOW RELATIVE HUMIDITY AND GUSTY NORTHERLY WINDS WILL
CREATE VERY DANGEROUS FIRE WEATHER CONDITIONS ACROSS CENTRAL
MINNESOTA THIS AFTERNOON. RELATIVE HUMIDITY HAVE DROPPED TO
AROUND 20 PERCENT THIS AFTERNOON....WITH SOME SITES DROPPING TO
AROUND 15 PERCENT. NORTHWEST WINDS WILL CONTINUE TO GUST AROUND
30 MPH THROUGH LATE AFTERNOON. WITH EXTREMELY DRY FUEL
CONDITIONS... WILDFIRES COULD GROW VERY QUICKLY. THE RED FLAG
WARNING IS ROUGHLY ALONG AND NORTH OF AN APPLETON...TO BUFFALO...
TO LINDSTROM LINE.

A FIRE WEATHER WATCH HAS BEEN ISSUED FOR EAU CLAIRE AND ALSO POLK
COUNTY IN WEST CENTRAL WISCONSIN FOR LATE SATURDAY MORNING AND
SATURDAY AFTERNOON. NORTHWEST WINDS WILL GUST AROUND 30 MPH AND
RELATIVE HUMIDITY WILL DRY INTO THE TEENS SATURDAY AFTERNOON. THIS
WILL GENERATE CRITICAL FIRE WEATHER CONDITIONS...ESPECIALLY DURING
THE AFTERNOON FOR THIS AREA.

MNZ041>045-047>053-055-057>059-061-170100-
/O.CON.KMPX.FW.W.0004.000000T0000Z-100417T0100Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-SWIFT-KANDIYOHI-MEEKER-WRIGHT-
ANOKA-
353 PM CDT FRI APR 16 2010

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING.

EXTREMELY LOW RELATIVE HUMIDITY AND GUSTY NORTHERLY WINDS WILL
CREATE VERY DANGEROUS FIRE WEATHER CONDITIONS ACROSS CENTRAL
MINNESOTA FOR THE REMAINDER OF THE AFTERNOON. RELATIVE HUMIDITY
HAVE DROPPED TO AROUND 20 PERCENT THIS AFTERNOON....WITH SOME
SITES DROPPING TO AROUND 15 PERCENT. WINDS WILL REMAIN NORTHWEST
AND GUSTY TO AROUND 30 MPH. WITH EXTREMELY DRY FUEL CONDITIONS...
WILDFIRES COULD GROW VERY QUICKLY. THE RED FLAG WARNING IS IN
EFFECT ROUGHLY ALONG AND NORTH OF AN APPLETON...TO BUFFALO...TO
LINDSTROM LINE..

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 WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

WIZ014-170500-
/O.EXA.KMPX.FW.A.0002.100417T1600Z-100418T0000Z/
POLK-
353 PM CDT FRI APR 16 2010

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FIRE WEATHER WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY EVENING. 

NORTHWEST WINDS WILL GUST AROUND 30 MPH AND RELATIVE HUMIDITY
WILL DROP INTO THE TEENS SATURDAY AFTERNOON ACROSS THE COUNTY.

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.

&&

$$

WIZ028-170500-
/O.CON.KMPX.FW.A.0002.100417T1600Z-100418T0000Z/
EAU CLAIRE-
353 PM CDT FRI APR 16 2010

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY EVENING...

A FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY MORNING
THROUGH SATURDAY EVENING. 

NORTHWEST WINDS WILL GUST AROUND 30 MPH AND RELATIVE HUMIDITY
WILL DROP INTO THE TEENS SATURDAY AFTERNOON ACROSS THE COUNTY.

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.

&&

$$

Nearby

Red Flag Warnings in Minnesota, 2010Every red flag warning in 2010

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.