Alert archive / North Dakota / Special Weather Statements in 2016

Special Weather Statement, NWS Grand Forks, ND

May 30, 2016Grand Forks County, North Dakota

NWS Grand Forks, ND issued this special weather statement at May 30, 2016, 4:08 PM CDT for Grand Forks County, North Dakota. It was in force for 37 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: May 30, 2016, 4:08 PM CDT (21:08 UTC)
Expired: May 30, 2016, 4:45 PM CDT
In force: 37 min
Issued by: NWS Grand Forks, ND

County Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 47 km from the middle of the area, began a volume at 21:12 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

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.1 hours before the alert went out and 285 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: 197 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 1274 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Forks, ND wrote its last area forecast discussion before this special weather statement went out at May 30, 3:07 PM CDT, 1 hour 1 minute earlier.

Area forecast discussion, May 30, 3:07 PM CDT, 1 hour 1 minute before

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Hazardous weather outlook, May 30, 9:02 AM CDT, 7 hours 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND FORKS ND
902 AM CDT MON MAY 30 2016

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-311145-
WEST POLK-NORMAN-CLAY-KITTSON-ROSEAU-LAKE OF THE WOODS-
WEST MARSHALL-EAST MARSHALL-NORTH BELTRAMI-PENNINGTON-RED LAKE-
EAST POLK-NORTH CLEARWATER-SOUTH BELTRAMI-MAHNOMEN-
SOUTH CLEARWATER-HUBBARD-WEST BECKER-EAST BECKER-WILKIN-
WEST OTTER TAIL-EAST OTTER TAIL-WADENA-GRANT-TOWNER-CAVALIER-
PEMBINA-BENSON-RAMSEY-EASTERN WALSH COUNTY-EDDY-NELSON-
GRAND FORKS-GRIGGS-STEELE-TRAILL-BARNES-CASS-RANSOM-SARGENT-
RICHLAND-WESTERN WALSH COUNTY-
644 AM CDT MON MAY 30 2016

...RISK OF SEVERE STORMS LATE THIS AFTERNOON THROUGH THE
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN NORTH
DAKOTA...WEST CENTRAL AND NORTHWEST MINNESOTA.

.DAY ONE...TODAY AND TONIGHT

AN APPROACHING AREA OF LOW PRESSURE WILL BRING A GOOD CHANCE FOR
SHOWERS AND THUNDERSTORMS. SOME OF THESE STORMS MAY BE SEVERE FROM
LATE AFTERNOON THROUGH THE EVENING. THE FAVORED THREAT AREA WILL
BE ALONG AND SOUTH OF HIGHWAY 200 FROM THE VALLEY WESTWARD. THE
PRIMARY THREAT WILL BE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE WILL BE CHANCES FOR SHOWERS AND THUNDERSTORMS NEAR THE END OF
THE WEEK AND INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING.

In the hours before

Local storm report, May 30, 2:58 PM CDT, 1 hour 10 minutes before

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Local storm report, May 30, 3:43 PM CDT, 25 minutes before

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Local storm report, May 30, 3:55 PM CDT, 13 minutes before

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Special weather statement, May 30, 3:57 PM CDT, 11 minutes before

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Local storm report, May 30, 4:02 PM CDT, 6 minutes before

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Special weather statement, May 30, 4:08 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 9:33 AM CDT	River Flood Warning	FGF	Kittson	71 hr
May 30, 3:57 PM CDT	Special Weather Statement	FGF	Polk	33 min
May 30, 4:14 PM CDT	Severe Thunderstorm Warning	FGF	Polk	28 min
May 30, 4:32 PM CDT	Severe Thunderstorm Warning	FGF	Polk	31 min
May 30, 5:37 PM CDT	Special Weather Statement	FGF	Polk	53 min
May 30, 5:40 PM CDT	Severe Thunderstorm Warning	FGF	Polk	35 min
May 30, 5:50 PM CDT	Areal Flood Advisory	FGF	Polk	3 hr
May 30, 6:16 PM CDT	Severe Thunderstorm Warning	FGF	Polk	44 min
May 30, 6:19 PM CDT	Flash Flood Warning	FGF	Polk	3 hr
May 30, 1:22 PM CDT	Special Weather Statement	FGF	Eddy	38 min
May 30, 2:16 PM CDT	Special Weather Statement	FGF	Nelson	59 min
May 30, 2:21 PM CDT	Special Weather Statement	FGF	Grand Forks	39 min
May 30, 2:28 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	47 min
May 30, 3:17 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	43 min
May 30, 3:31 PM CDT	Areal Flood Advisory	FGF	Grand Forks	3 hr
May 30, 6:27 PM CDT	Special Weather Statement	FGF	Steele	33 min

Nearby

Special Weather Statements in North Dakota, 2016 Every special weather statement in 2016

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.