Alert archive / Minnesota / Fire Weather Watches in 2012

Fire Weather Watch 2, NWS Grand Forks, ND

April 7, 2012Grant County, Otter Tail County, Wilkin County, Minnesota; Ransom County, Richland County, Sargent County, North Dakota

NWS Grand Forks, ND issued this fire weather watch at Apr 7, 2012, 3:00 PM CDT for Grant County, Otter Tail County, Wilkin County, Minnesota; Ransom County, Richland County, Sargent County, North Dakota. It took effect at Apr 8, 2012, 1:00 PM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 7, 2012, 3:00 PM CDT (20:00 UTC)
In effect from
Apr 8, 2012, 1:00 PM CDT
Expired
Apr 8, 2012, 2:47 AM CDT
In force
Issued by
NWS Grand Forks, ND

Counties Grant County, MN, Otter Tail County, MN, Wilkin County, MN, Ransom County, ND, Richland County, ND, Sargent County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 148 km from the middle of the area, began a volume at 20:04 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, 8.0 hours before the alert went out and 290 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 2012-04-07Temperature 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, Minneapolis, MN at 12:00Z on 2012-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 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
1494 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 3:32 AM CDTRed Flag WarningFGFBecker, Clay, Grant, Otter Tail, Wilkin16 hr
Apr 7, 3:35 AM CDTWind AdvisoryFGFBecker, Clay, Clearwater, Grant, Kittson, Mahnomen and 8 more17 hr

Nearby

Fire Weather Watches in Minnesota, 2012Fire Weather Watches in North Dakota, 2012Every fire weather watch in 2012

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.