Alert archive / Minnesota / Red Flag Warnings in 2010

Red Flag Warning 2, NWS Twin Cities, MN

March 30, 20106 counties in Wisconsin; 14 counties in Minnesota

NWS Twin Cities, MN issued this red flag warning at Mar 30, 2010, 3:38 PM CDT for 6 counties in Wisconsin; 14 counties in Minnesota. It was in force for 2 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 30, 2010, 3:38 PM CDT (20:38 UTC)
Expired
Mar 30, 2010, 6:00 PM CDT
In force
2 hr
Issued by
NWS Twin Cities, MN

Counties Blue Earth County, MN, Brown County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Le Sueur County, MN, Martin County, MN, Nicollet County, MN, Redwood County, MN, Rice County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN, Yellow Medicine County, MN, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 57 km from the middle of the area, began a volume at 20:38 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 12:00Z, 8.6 hours before the alert went out and 58 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 12:00Z on 2010-03-30Temperature 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 12:00Z on 2010-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 384 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
1543 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
384 m²/s²
0-3 km storm-relative helicity
369 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.

455 
WWUS83 KMPX 302038
RFWMPX

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
338 PM CDT TUE MAR 30 2010

...THIS IS A CORRECTED PRODUCT. THE RED FLAG WARNING IS FOR THIS
AFTERNOON UNTIL 6 PM NOT FOR THURSDAY...

.STRONG SOUTH WINDS AND LOW RELATIVE HUMIDITY WILL CONTINUE TO
CAUSE RED FLAG WARNING CONDITIONS ACROSS MUCH OF SOUTHERN
MINNESOTA INTO WEST CENTRAL WISCONSIN UNTIL 6 PM THIS EVENING. THE
RED FLAG WARNING RUNS FROM SOUTH OF THE MINNESOTA RIVER IN THE
CANBY AREA THEN THROUGH NEW ULM TO THE MANKATO AREA. IT THEN
INCLUDES MUCH OF THE AREA SOUTH FROM RED WING TO MENOMONIE TO THE
CHIPPEWA FALLS AREA OF WISCONSIN. SOUTH WINDS OF 20 TO 25 MPH WITH
GUSTS OVER 30 MPH COMBINED WITH RELATIVE HUMIDITY AROUND 25
PERCENT AND DRY FUELS ARE CAUSING THESE CONDITIONS.

MNZ064-073>078-082>085-091>093-WIZ023>028-302300-
/O.CAN.KMPX.FW.W.0001.100401T2000Z-100401T2300Z/
/O.NEW.KMPX.FW.W.0002.100330T2038Z-100330T2300Z/
YELLOW MEDICINE-REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-
WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
ST. CROIX-PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE-
338 PM CDT TUE MAR 30 2010

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CDT THIS EVENING...
...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 6 PM CDT THIS
EVENING. THE RED FLAG WARNING FOR THURSDAY WAS IN ERROR AND THIS
IS A CORRECTED PRODUCT.

STRONG SOUTH WINDS AND LOW RELATIVE HUMIDITY WILL CONTINUE TO
CAUSE RED FLAG WARNING CONDITIONS ACROSS MUCH OF SOUTHERN
MINNESOTA INTO WEST CENTRAL WISCONSIN UNTIL 6 PM THIS EVENING. THE
RED FLAG WARNING RUNS FROM SOUTH OF THE MINNESOTA RIVER IN THE
CANBY AREA THEN THROUGH NEW ULM TO THE MANKATO AREA. IT THEN
INCLUDES MUCH OF THE AREA SOUTH FROM RED WING TO MENOMONIE TO THE
CHIPPEWA FALLS AREA OF WISCONSIN. SOUTH WINDS OF 20 TO 25 MPH WITH
GUSTS OVER 30 MPH COMBINED WITH RELATIVE HUMIDITY AROUND 25
PERCENT AND DRY FUELS ARE CAUSING THESE CONDITIONS.

&&

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 30, 3:20 PM CDTRed Flag WarningMPXChippewa, Dunn, Eau Claire, Pepin, Pierce, Saint Croix18 min

Nearby

Red Flag Warnings in Minnesota, 2010Red Flag Warnings in Wisconsin, 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.