Alert archive / Minnesota / Special Weather Statements in 2014

Special Weather Statement, NWS Grand Forks, ND

July 21, 2014Wadena County, Minnesota

NWS Grand Forks, ND issued this special weather statement at Jul 21, 2014, 11:01 PM CDT for Wadena County, Minnesota. It was in force for 29 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 21, 2014, 11:01 PM CDT (04:01 UTC)
Expired: Jul 21, 2014, 11:30 PM CDT
In force: 29 min
Issued by: NWS Grand Forks, ND

County Wadena County, MN

The radar

The Minneapolis radar (KMPX), 203 km from the middle of the area, began a volume at 04:01 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.

What was reported inside it

Time	Report	Where	Remark
Jul 21, 11:05 PM CDT	TSTM WND DMG	Wadena, MN	IN TOWN...A SECTION OF METAL ROOFING WAS TORN OFF THE TEMPORARY COMMUNITY CENTER. ABOUT TWO TO THREE DOZEN TREES WERE SNAPPED OR UPROOTED. NEAR TOWN...A SECTION OF AN IRRIGATION SYSTEM WAS FLIPPED AND METAL ROOFING WAS TORN OFF OF A COUPLE OF FARM BUILDING.
Jul 21, 11:05 PM CDT	TSTM WND GST 80	Wadena, MN	IN TOWN...A SECTION OF METAL ROOFING WAS TORN OFF THE TEMPORARY COMMUNITY CENTER. ABOUT TWO TO THREE DOZEN TREES WERE SNAPPED OR UPROOTED. NEAR TOWN...A SECTION OF AN IRRIGATION SYSTEM WAS FLIPPED AND METAL ROOFING WAS TORN OFF OF A COUPLE OF FARM BUILDING. PE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 4.0 hours before the alert went out and 202 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: 3298 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1091 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 5.7

Open this sounding in Storm Lab

The text

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

831 
WWUS83 KFGF 220401
SPSFGF

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1101 PM CDT MON JUL 21 2014

MNZ031-032-220430-
EAST OTTER TAIL MN-WADENA MN-
1101 PM CDT MON JUL 21 2014

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN OTTER TAIL AND SOUTHERN
WADENA COUNTIES UNTIL 1130 PM CDT...

AT 1058 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A THUNDERSTORM 6 MILES SOUTH OF NEW YORK MILLS...OR 34 MILES EAST OF
FERGUS FALLS...MOVING TO THE EAST AT 60 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THE STORM.

THE STORM WILL BE NEAR...
WADENA AROUND 1110 PM CDT.
VERNDALE AROUND 1115 PM CDT.
ALDRICH AROUND 1120 PM CDT.
STAPLES AIRPORT AROUND 1125 PM CDT.

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

LAT...LON 4636 9473 4636 9486 4636 9514 4633 9515
      4634 9547 4652 9547 4654 9477 4640 9477
      4639 9473 4637 9472
TIME...MOT...LOC 0401Z 270DEG 52KT 4643 9533

$$

HOPPES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 7:48 PM CDT	Severe Thunderstorm Warning	FGF	Polk	57 min
Jul 21, 8:26 PM CDT	Flash Flood Warning	FGF	Polk	6 hr
Jul 21, 8:43 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman, Polk	46 min
Jul 21, 8:58 PM CDT	Tornado Warning	FGF	Pennington, Polk, Red Lake	47 min
Jul 21, 9:08 PM CDT	Tornado Warning	FGF	Norman, Polk	33 min
Jul 21, 9:15 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Beltrami, Clay, Clearwater, Mahnomen, Marshall and 4 more	60 min
Jul 21, 10:01 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Beltrami, Clearwater, Hubbard, Lake of the Woods, Mahnomen and 3 more	59 min
Jul 21, 10:14 PM CDT	Special Weather Statement	FGF	Grant	46 min
Jul 21, 10:32 PM CDT	Flash Flood Warning	FGF	Marshall, Pennington, Polk, Red Lake	8 hr
Jul 21, 11:10 PM CDT	High Wind Warning	FGF	Mahnomen, Norman, Pennington, Polk, Red Lake	5 hr
Jul 22, 12:08 AM CDT	Areal Flood Advisory	FGF	Beltrami, Lake of the Woods, Roseau	7 hr
Jul 22, 6:28 AM CDT	River Flood Warning	FGF	Marshall	42 hr
Jul 22, 6:28 AM CDT	River Flood Warning	FGF	Marshall	3 days
Jul 21, 7:03 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	27 min
Jul 21, 7:26 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Eddy, Griggs, Nelson, Steele	64 min
Jul 21, 7:30 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	60 min
Jul 21, 7:38 PM CDT	Tornado Warning	FGF	Eddy, Griggs, Nelson, Steele	37 min
Jul 21, 8:09 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Griggs, Nelson, Steele and 2 more	66 min
Jul 21, 8:29 PM CDT	Tornado Warning	FGF	Grand Forks	46 min

Nearby

Special Weather Statements in Minnesota, 2014 Every special weather statement in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.