Alert archive / Minnesota / Red Flag Warnings in 2006

Red Flag Warning 1, NWS Twin Cities, MN

April 15, 200612 counties in Minnesota

NWS Twin Cities, MN issued this red flag warning at Apr 15, 2006, 5:53 AM CDT for 12 counties in Minnesota. It took effect at Apr 15, 2006, 1:00 PM CDT. It was in force for 6 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 15, 2006, 5:53 AM CDT (10:53 UTC)
In effect from: Apr 15, 2006, 1:00 PM CDT
Expired: Apr 15, 2006, 7:00 PM CDT
In force: 6 hr
Issued by: NWS Twin Cities, MN

Counties Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Faribault County, MN, Lac qui Parle County, MN, Martin County, MN, Nicollet County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN, Watonwan County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 115 km from the middle of the area, began a volume at 10:54 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, 10.9 hours before the alert went out and 113 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 3528 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 4 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.

000 
WWUS83 KMPX 151053
RFWMPX

RED FLAG WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
553 AM CDT SAT APR 15 2006

...RED FLAG WARNING FROM 1 PM UNTIL 7 PM CDT FOR PORTIONS OF
SOUTHWEST MINNESOTA FOR GUSTY SOUTHEAST WINDS WARM TEMPERATURES
AND LOW RELATIVE HUMIDITIES...

.SOUTHEAST WINDS ARE EXPECTED TO INCREASE TO 20 TO 25 MPH IN
ADVANCE OF AN APPROACHING LOW PRESSURE SYSTEM SOUTHWEST OF THE
AREA. AS TEMPERATURES INCREASE INTO THE UPPER 70S...RELATIVE
HUMIDITIES WILL DROP TO NEAR 20 PERCENT DURING THE
AFTERNOON...ALONG AND SOUTHWEST OF THE MINNESOTA RIVER VALLEY TO
THE WEST OF MANKATO.

MNZ054-056-064-065-067-073>075-082-083-091-092-151900-
/O.NEW.KMPX.FW.W.0001.060415T1800Z-060416T0000Z/
LAC QUI PARLE-CHIPPEWA-YELLOW MEDICINE-RENVILLE-SIBLEY-REDWOOD-
BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
553 AM CDT SAT APR 15 2006

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 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 7 PM CDT THIS EVENING. 

SOUTHEAST WINDS ARE EXPECTED TO INCREASE TO 20 TO 25 MPH IN
ADVANCE OF AN APPROACHING LOW PRESSURE SYSTEM SOUTHWEST OF THE
AREA. AS TEMPERATURES INCREASE INTO THE UPPER 70S...RELATIVE
HUMIDITIES WILL DROP TO NEAR 20 PERCENT DURING THE
AFTERNOON...ALONG AND SOUTHWEST OF THE MINNESOTA RIVER VALLEY TO
THE WEST OF MANKATO.

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.

$$

Nearby

Red Flag Warnings in Minnesota, 2006 Every red flag warning in 2006

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.