Alert archive / North Dakota / Special Weather Statements in 2017

Special Weather Statement, NWS Grand Forks, ND

July 17, 2017Richland County, North Dakota

NWS Grand Forks, ND issued this special weather statement at Jul 17, 2017, 4:52 PM CDT for Richland County, North Dakota. It was in force for 23 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 17, 2017, 4:52 PM CDT (21:52 UTC)
Expired: Jul 17, 2017, 5:15 PM CDT
In force: 23 min
Issued by: NWS Grand Forks, ND

County Richland County, ND

The radar

The Aberdeen radar (KABR), 155 km from the middle of the area, began a volume at 21:53 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, 9.9 hours before the alert went out and 190 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: 503 J/kg
Mixed-layer CIN: -276 J/kg
Mixed-layer LCL: 1930 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 17, 2:07 PM CDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 17, 2:07 PM CDT, 2 hours 45 minutes before

Area Forecast Discussion
National Weather Service Grand Forks ND
207 PM CDT Mon Jul 17 2017

.SHORT TERM...(This evening through Tuesday)
Issued at 121 PM CDT Mon Jul 17 2017

Expecting convective initiation 20-22z time frame as any cap
eroding and airmass continues to destabilize with around 5 more
degrees to reach convective temperatures. CAMs seem to have a
relatively good handle on expected outcome and makes sense
considering current conditions and expected frontal position.
Prime area for severe storms likely along and south of a Lisbon-
FAR- BJI line. Large hail and damaging winds main concern however
a little concerned with mini surface low over far se ND and
tornado potential so will be watching this area close. Convection
should propagate e-se through early evening so does not look like
a long lived event. More uncertain about later tonight as CAMs
farther north with next batch of shra/tsra associated with exit
region/nose of another jet streak.

Pop location across the south will be the main challenge for
tomorrow. Otherwise drier and cooler airmass working into the fa
should keep severe threat to our south. Generally kept pops along
and south of I94 for now. Temperatures will be at or a few degrees
blo seasonal averages.

.LONG TERM...(Tuesday night through Monday)
Issued at 121 PM CDT Mon Jul 17 2017

Surface high pressure is in control to start the period as the
upper pattern becomes more zonal and the jet sets up along the
international border. Models indicate a few waves propagating
through the flow...and the resultant instability will bring
chances for more precipitation on Wednesday...then again late
Friday and into Saturday. Temperatures for the remainder of the
period should be more seasonable...with highs in the 80s and lows
in the lower 60s through the end of the period.

&&

.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1253 PM CDT Mon Jul 17 2017

Best potential for redevelopment this afternoon will be roughly
along and south of a line from FAR to BJI with both sites on edge.
Added tempo or vc group into early evening. Otherwise VFR
conditions expected through the period.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...None.
MN...None.
&&

SHORT TERM...Voelker
LONG TERM...Hopkins
AVIATION...Voelker

Hazardous weather outlook, Jul 17, 6:22 AM CDT, 10 hours 30 minutes before

Hazardous Weather Outlook
National Weather Service Grand Forks ND
622 AM CDT Mon Jul 17 2017

NDZ006>008-014>016-024-026-028-054-181130-
Towner-Cavalier-Pembina-Benson-Ramsey-Eastern Walsh County-Eddy-
Nelson-Griggs-Western Walsh County-
622 AM CDT Mon Jul 17 2017

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

MNZ001>009-013>017-022>024-027>032-040-NDZ027-029-030-038-039-049-
052-053-181130-
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-Grand Forks-Steele-
Traill-Barnes-Cass-Ransom-Sargent-Richland-
622 AM CDT Mon Jul 17 2017

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

Severe thunderstorms are expected this afternoon and evening over
the area. Thunderstorms are expected to develop after 3 PM CDT and
should end around 11 PM CDT. Hail to 2 inches in diameter and
wind gusts to 70 mph are forecast.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required.

JH

In the hours before

Local storm report, Jul 17, 4:18 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
418 PM CDT MON JUL 17 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0405 PM     HAIL             7 SW FERGUS FALLS       46.21N 96.17W
07/17/2017  E1.00 INCH       OTTER TAIL         MN   PUBLIC

            LARGE HAIL FELL FOR SEVERAL MINUTES ACROSS SOUTHERN
            ORWELL TOWNSHIP.

&&

GGUST

Local storm report, Jul 17, 4:22 PM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
422 PM CDT MON JUL 17 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0410 PM     HAIL             2 NNW BLUFFTON          46.50N 95.25W
07/17/2017  E1.25 INCH       OTTER TAIL         MN   TRAINED SPOTTER

            HAIL OF QUARTER TO HALF DOLLAR SIZE.

&&

GGUST

Special weather statement, Jul 17, 4:38 PM CDT, 14 minutes before

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Local storm report, Jul 17, 4:41 PM CDT, 11 minutes before

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Local storm report, Jul 17, 4:47 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
447 PM CDT MON JUL 17 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0425 PM     HAIL             BLUE GRASS              46.54N 95.01W
07/17/2017  E0.75 INCH       WADENA             MN   TRAINED SPOTTER

&&

GGUST

Special weather statement, Jul 17, 4:52 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Eastern ND/Grand Forks ND
452 PM CDT MON JUL 17 2017

MNZ029-NDZ053-172215-
Wilkin MN-Richland ND-
452 PM CDT MON JUL 17 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WILKIN AND
SOUTHEASTERN RICHLAND COUNTIES UNTIL 515 PM CDT...

At 451 PM CDT, Doppler radar was tracking a strong thunderstorm over
Sonora, or 15 miles southwest of Wahpeton, moving east at 25 mph.

Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.

This strong thunderstorm will be near...
  Sonora around 455 PM CDT.
  Fairmount around 505 PM CDT.
  Doran around 510 PM CDT.
  Campbell and Tenney around 515 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.

&&

A severe thunderstorm watch remains in effect until 1100 PM CDT for
west central Minnesota.

LAT...LON 4617 9690 4621 9636 4603 9635 4602 9647
      4602 9657 4601 9658 4599 9689
TIME...MOT...LOC 2151Z 266DEG 39KT 4609 9679

VG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 17, 4:30 AM CDT	Special Weather Statement	FGF	Mahnomen, Norman, Polk, Red Lake	60 min
Jul 17, 5:26 AM CDT	Special Weather Statement	FGF	Red Lake	49 min
Jul 17, 3:18 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail, Wilkin	57 min
Jul 17, 3:26 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail, Wadena	64 min
Jul 17, 4:24 PM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail	66 min
Jul 17, 4:34 PM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wilkin	56 min
Jul 17, 4:38 PM CDT	Special Weather Statement	FGF	Wadena	67 min
Jul 17, 5:01 PM CDT	Areal Flood Advisory	FGF	Otter Tail	3 hr
Jul 17, 5:04 PM CDT	Areal Flood Advisory	FGF	Wadena	3 hr
Jul 17, 5:30 PM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail	39 min
Jul 17, 6:05 PM CDT	Areal Flood Advisory	FGF	Otter Tail	115 min
Jul 17, 6:13 PM CDT	Areal Flood Advisory	FGF	Grant, Otter Tail	3 hr
Jul 17, 6:20 PM CDT	Special Weather Statement	FGF	Traverse	25 min
Jul 17, 12:35 AM CDT	Special Weather Statement	FGF	Benson, Cavalier, Ramsey, Towner	55 min
Jul 17, 1:31 AM CDT	Special Weather Statement	FGF	Benson, Ramsey	59 min
Jul 17, 3:31 AM CDT	Special Weather Statement	FGF	Grand Forks	59 min

Nearby

Special Weather Statements in North Dakota, 2017 Every special weather statement in 2017

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.