Alert archive / Minnesota / Special Weather Statements in 2012

Special Weather Statement, NWS Grand Forks, ND

July 12, 2012Kittson County, Minnesota

NWS Grand Forks, ND issued this special weather statement at Jul 12, 2012, 5:21 PM CDT for Kittson County, Minnesota. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 12, 2012, 5:21 PM CDT (22:21 UTC)
Expired: Jul 12, 2012, 6:15 PM CDT
In force: 54 min
Issued by: NWS Grand Forks, ND

County Kittson County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 143 km from the middle of the area, began a volume at 22:23 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

International Fa, MN (KINL), launched 12:00Z, 10.4 hours before the alert went out and 278 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: 80 J/kg
Mixed-layer CIN: -183 J/kg
Mixed-layer LCL: 1401 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: 1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

816 
WWUS83 KFGF 122221
SPSFGF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
521 PM CDT THU JUL 12 2012

MNZ004-NDZ008-122315-
KITTSON MN-PEMBINA ND-
521 PM CDT THU JUL 12 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN PEMBINA AND WESTERN
KITTSON COUNTIES UNTIL 615 PM CDT...

AT 519 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
THUNDERSTORM 10 MILES NORTH OF DRAYTON...OR 23 MILES NORTHEAST OF
GRAFTON...MOVING TO THE NORTHEAST AT 20 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THE STORM...ALONG WITH HEAVY RAIN.

THE STORM WILL BE NEAR...
PEMBINA AND ST. VINCENT AROUND 535 PM CDT.
NOYES AROUND 540 PM CDT.
HUMBOLDT AROUND 545 PM CDT.
HALLOCK AND NORTHCOTE AROUND 550 PM CDT.

BE PREPARED TO TAKE SHELTER IF THE STORMS INTENSIFY AND BECOME
SEVERE...OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.

LAT...LON 4872 9671 4856 9731 4879 9754 4901 9739
      4901 9680
TIME...MOT...LOC 2221Z 239DEG 18KT 4871 9712

$$

BRAMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 4:15 PM CDT	Tornado Warning	FGF	Polk	45 min
Jul 12, 4:22 PM CDT	Special Weather Statement	FGF	Norman	53 min
Jul 12, 5:03 PM CDT	Severe Thunderstorm Warning	FGF	Polk	57 min
Jul 12, 5:41 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods, Roseau	25 min
Jul 12, 6:10 PM CDT	Special Weather Statement	FGF	Lake of the Woods	65 min
Jul 12, 6:15 PM CDT	Special Weather Statement	FGF	Polk	60 min
Jul 12, 6:18 PM CDT	Special Weather Statement	FGF	Norman	57 min
Jul 12, 6:22 PM CDT	Special Weather Statement	FGF	Kittson	53 min
Jul 12, 6:39 PM CDT	Severe Thunderstorm Warning	FGF	Roseau	51 min
Jul 12, 6:45 PM CDT	Severe Thunderstorm Warning	FGF	Clay	60 min
Jul 12, 6:47 PM CDT	Severe Thunderstorm Warning	FGF	Norman	35 min
Jul 12, 3:36 PM CDT	Special Weather Statement	FGF	Walsh	54 min
Jul 12, 3:58 PM CDT	Special Weather Statement	FGF	Grand Forks	62 min
Jul 12, 4:56 PM CDT	Special Weather Statement	FGF	Walsh	64 min

Nearby

Special Weather Statements in Minnesota, 2012 Every special weather statement 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.