Alert archive / Minnesota / Fire Weather Watches in 2009

Fire Weather Watch 2, NWS Twin Cities, MN

April 15, 200919 counties in Minnesota

NWS Twin Cities, MN issued this fire weather watch at Apr 15, 2009, 3:32 PM CDT for 19 counties in Minnesota. It took effect at Apr 16, 2009, 12:00 PM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 15, 2009, 3:32 PM CDT (20:32 UTC)
In effect from
Apr 16, 2009, 12:00 PM CDT
Expired
Apr 16, 2009, 3:11 AM CDT
In force
Issued by
NWS Twin Cities, MN

Counties Benton County, MN, Blue Earth County, MN, Carver County, MN, Faribault County, MN, Freeborn County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Morrison County, MN, Nicollet 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, Wright County, MN

The radar

The Minneapolis radar (KMPX), 33 km from the middle of the area, began a volume at 20:32 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

Aberdeen, SD (KABR), launched 12:00Z, 8.5 hours before the alert went out and 350 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, Aberdeen, SD at 12:00Z on 2009-04-15Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2009-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -96 square meters per square second.193958Sfc1 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
2779 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-96 m²/s²
0-3 km storm-relative helicity
-37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 2:53 AM CDTRed Flag WarningMPXBrown, Chippewa, Douglas, Kandiyohi, Lac qui Parle, Martin and 7 more16 hr

Nearby

Fire Weather Watches in Minnesota, 2009Every fire weather watch in 2009

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.