Alert archive / Minnesota / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 145, NWS Grand Forks, ND

July 21, 20166 counties in Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 21, 2016, 12:43 AM CDT for 6 counties in Minnesota. It was in force for 62 min. 9 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, 2016, 12:43 AM CDT (05:43 UTC)
Expired: Jul 21, 2016, 1:45 AM CDT
In force: 62 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 80.0 mph

Counties Becker County, MN, Beltrami County, MN, Clearwater County, MN, Hubbard County, MN, Otter Tail County, MN, Wadena County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 193 km from the middle of the area, began a volume at 05:45 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, 12:50 AM CDT	TSTM WND DMG	2 Ne Lake Itasca, MN	TWO TREE REPORTED SNAPPED IN A YARD.
Jul 21, 12:58 AM CDT	TSTM WND DMG	Wilton, MN	MATURE TREES BROKEN DOWN IN WILTON. POWER LINES DOWN AS WELL.
Jul 21, 1:00 AM CDT	TSTM WND DMG	7 Nnw Park Rapids, MN	ESTIMATED 70 MPH WINDS SUFFICIENT TO UPROOT 3 LARGE TREES APPROXIMATELY 12 INCHES IN DIAMETER. SOIL SOFTENED BY RECENT RAINFALL.
Jul 21, 1:02 AM CDT	TSTM WND DMG	4 Ene Emmaville, MN	LARGE TREE BRANCHES AND LIMBS BROKEN DOWN AROUND CAMP WILDERNESS. POWER OUTAGE REPORTED.
Jul 21, 1:05 AM CDT	TSTM WND GST 55	3 S Park Rapids, MN	PEAK WINDS MEASURED AT TEH PARK RAPIDS AIRPORT /KPKD/.
Jul 21, 1:05 AM CDT	TSTM WND GST 60	3 Wnw Bemidji, MN	PEAK WINDS MEASURED AT THE BEMIDJI AIRPORT /KBJI/.
Jul 21, 1:13 AM CDT	TSTM WND DMG	Bemidji, MN	NUMEROUS LARGE TREES BROKEN DOWN AROUND TOWN. ROOFING BLOWN OFF BUILDINGS.
Jul 21, 1:15 AM CDT	TSTM WND GST 52	Chamberlain, MN	PEAK WINDS MEASURED AT THE RWIS ON HWY 64.
Jul 21, 1:20 AM CDT	TSTM WND DMG	Bemidji, MN	NUMEROUS LARGE TREES BROKEN DOWN AROUND TOWN. ROOFING BLOWN OFF BUILDINGS.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 7 storm reports to this severe thunderstorm warning; the first came 7 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 20, 8:41 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 5.7 hours before the alert went out and 189 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: 2808 J/kg
Mixed-layer CIN: -129 J/kg
Mixed-layer LCL: 915 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 23 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

983 
WUUS53 KFGF 210543
SVRFGF
MNC005-007-029-057-111-159-210645-
/O.NEW.KFGF.SV.W.0145.160721T0543Z-160721T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1243 AM CDT THU JUL 21 2016

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA...
  WADENA COUNTY IN CENTRAL MINNESOTA...
  EASTERN BECKER COUNTY IN NORTHWESTERN MINNESOTA...
  SOUTHEASTERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA...
  SOUTHEASTERN CLEARWATER COUNTY IN NORTHWESTERN MINNESOTA...
  HUBBARD COUNTY IN NORTH CENTRAL MINNESOTA...

* UNTIL 145 AM CDT

* AT 1242 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR DEBS TO NEAR LAKE ITASCA TO HEIGHT OF LAND
  LAKE...MOVING EAST AT 65 MPH.

  THESE ARE VERY DANGEROUS STORMS. 

  HAZARD...80 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE HEAVILY DAMAGED. EXPECT 
           CONSIDERABLE DAMAGE TO ROOFS...WINDOWS...AND VEHICLES. 
           EXTENSIVE TREE DAMAGE AND POWER OUTAGES ARE LIKELY. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  LAKE ITASCA AROUND 1245 AM CDT. 
  LAKE GEORGE AND ISLAND LAKE IN BELTRAMI COUNTY AROUND 1250 AM CDT. 
  WOLF LAKE...PUPOSKY AND EMMAVILLE AROUND 1255 AM CDT. 
  MIDWAY AND HILLVIEW AROUND 100 AM CDT. 
  TENSTRIKE...MENAHGA AND AKELEY AROUND 105 AM CDT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4741 9442 4741 9467 4680 9466 4680 9479
      4647 9478 4670 9544 4718 9526 4793 9522
      4793 9442
TIME...MOT...LOC 0542Z 290DEG 56KT 4779 9517 4718 9519 4686 9562 

HAIL...1.00IN
WIND...80MPH
 
$$

TG

4 follow-up statements

406 
WWUS53 KFGF 210608
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
108 AM CDT THU JUL 21 2016

MNC005-007-029-057-111-159-210645-
/O.CON.KFGF.SV.W.0145.000000T0000Z-160721T0645Z/
OTTER TAIL MN-WADENA MN-BECKER MN-BELTRAMI MN-CLEARWATER MN-
HUBBARD MN-
108 AM CDT THU JUL 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM CDT
FOR NORTHEASTERN OTTER TAIL...WADENA...EASTERN BECKER...SOUTHEASTERN
BELTRAMI...SOUTHEASTERN CLEARWATER AND HUBBARD COUNTIES...

AT 107 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM RED LAKE TO NEAR BENEDICT TO NEAR BUTLER...MOVING EAST
AT 55 MPH.

THESE ARE VERY DANGEROUS STORMS.

HAZARD...80 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE HEAVILY DAMAGED. EXPECT 
         CONSIDERABLE DAMAGE TO ROOFS...WINDOWS...AND VEHICLES. 
         EXTENSIVE TREE DAMAGE AND POWER OUTAGES ARE LIKELY. 

THESE SEVERE STORMS WILL BE NEAR...
  LAPORTE AND BENEDICT AROUND 110 AM CDT. 
  AKELEY AND MENAHGA AROUND 115 AM CDT. 
  SEBEKA AROUND 120 AM CDT. 
  BLACKDUCK AND NIMROD AROUND 130 AM CDT. 
  OYLEN...FUNKLEY AND SHOOKS AROUND 135 AM CDT. 

SPOTTERS ARE REPORTING NUMEROUS TREES BLOWN OVER AND OTHER
SIGNIFICANT WIND DAMAGE ALONG THE ENTIRE LINE OF THUNDERSTORMS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4741 9442 4741 9467 4680 9466 4680 9479
      4647 9478 4670 9544 4718 9526 4793 9522
      4793 9442
TIME...MOT...LOC 0607Z 285DEG 47KT 4787 9499 4712 9479 4668 9531 

HAIL...1.00IN
WIND...80MPH
 
$$

TG

523 
WWUS53 KFGF 210630
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
130 AM CDT THU JUL 21 2016

MNC029-210640-
/O.CAN.KFGF.SV.W.0145.000000T0000Z-160721T0645Z/
CLEARWATER MN-
130 AM CDT THU JUL 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLEARWATER COUNTY
IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM CDT FOR
NORTH CENTRAL...WEST CENTRAL...CENTRAL AND NORTHWESTERN MINNESOTA.

LAT...LON 4741 9442 4741 9467 4680 9466 4680 9479
      4647 9478 4670 9544 4694 9491 4793 9478
      4793 9442
TIME...MOT...LOC 0630Z 292DEG 39KT 4791 9457 4704 9456 4658 9472 

$$

MNC005-007-057-111-159-210645-
/O.CON.KFGF.SV.W.0145.000000T0000Z-160721T0645Z/
OTTER TAIL MN-WADENA MN-BECKER MN-BELTRAMI MN-HUBBARD MN-
130 AM CDT THU JUL 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM CDT
FOR NORTHEASTERN OTTER TAIL...WADENA...SOUTHEASTERN BECKER...
SOUTHEASTERN BELTRAMI AND EASTERN HUBBARD COUNTIES...

AT 130 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES WEST OF KELLIHER TO NEAR WALKER TO POPLAR...
MOVING SOUTHEAST AT 45 MPH.

THESE ARE VERY DANGEROUS STORMS.

HAZARD...80 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE HEAVILY DAMAGED. EXPECT 
         CONSIDERABLE DAMAGE TO ROOFS...WINDOWS...AND VEHICLES. 
         EXTENSIVE TREE DAMAGE AND POWER OUTAGES ARE LIKELY. 

THESE SEVERE THUNDERSTORMS WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTHEASTERN OTTER TAIL...WADENA...SOUTHEASTERN BECKER...SOUTHEASTERN
BELTRAMI AND EASTERN HUBBARD COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4741 9442 4741 9467 4680 9466 4680 9479
      4647 9478 4670 9544 4694 9491 4793 9478
      4793 9442
TIME...MOT...LOC 0630Z 292DEG 39KT 4791 9457 4704 9456 4658 9472 

HAIL...1.00IN
WIND...80MPH
 
$$

TG

451 
WWUS53 KFGF 210637
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
137 AM CDT THU JUL 21 2016

MNC005-007-057-111-159-210645-
/O.CON.KFGF.SV.W.0145.000000T0000Z-160721T0645Z/
OTTER TAIL MN-WADENA MN-BECKER MN-BELTRAMI MN-HUBBARD MN-
137 AM CDT THU JUL 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 AM CDT
FOR NORTHEASTERN OTTER TAIL...WADENA...SOUTHEASTERN BECKER...
SOUTHEASTERN BELTRAMI AND EASTERN HUBBARD COUNTIES...

AT 136 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 6 MILES WEST OF SHOOKS TO NEAR TEN MILE LAKE TO NEAR
POPLAR...MOVING SOUTHEAST AT 55 MPH.

HAZARD...70 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
         ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
MENAHGA...BLACKDUCK...SEBEKA...AKELEY...NEVIS...
TENSTRIKE AND LAVINIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
GRAND FORKS.

&&

LAT...LON 4741 9442 4741 9467 4680 9466 4680 9479
      4647 9478 4670 9544 4694 9491 4793 9478
      4793 9442
TIME...MOT...LOC 0636Z 293DEG 47KT 4788 9457 4701 9456 4655 9472 

HAIL...1.00IN
WIND...70MPH
 
$$

JH

676 
WWUS53 KFGF 210646
SVSFGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
146 AM CDT THU JUL 21 2016

MNC005-007-057-111-159-210656-
/O.EXP.KFGF.SV.W.0145.000000T0000Z-160721T0645Z/
OTTER TAIL MN-WADENA MN-BECKER MN-BELTRAMI MN-HUBBARD MN-
146 AM CDT THU JUL 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OTTER TAIL...
WADENA...SOUTHEASTERN BECKER...SOUTHEASTERN BELTRAMI AND EASTERN
HUBBARD COUNTIES HAS EXPIRED...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM CDT FOR
NORTH CENTRAL...WEST CENTRAL...CENTRAL AND NORTHWESTERN MINNESOTA.

LAT...LON 4741 9442 4741 9467 4680 9466 4680 9479
      4647 9478 4670 9544 4694 9491 4793 9478
      4793 9442
TIME...MOT...LOC 0645Z 290DEG 56KT 4788 9457 4701 9456 4655 9472 

$$

JH

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 20, 11:34 PM CDT, 1 hour 9 minutes earlier.

Area forecast discussion, Jul 20, 11:34 PM CDT, 1 hour 9 minutes before

Area Forecast Discussion
National Weather Service Grand Forks ND
1134 PM CDT WED JUL 20 2016

.UPDATE...
Issued at 1126 PM CDT Wed Jul 20 2016

No sig changes to the fcts package. Severe Thunderstorm Watch 402
remians in effect for much of eastern ND and northwest MN through
3am cdt.

UPDATE Issued at 911 PM CDT Wed Jul 20 2016

Minimal update. Increased pops across northern two-thirds of CWA.
Severe Tstm Watch across most of CWA alg and north of Valley
City-Fargo-Park Rapids line thru 3am. Will expire Heat Advisory and
Warnings.

UPDATE Issued at 555 PM CDT Wed Jul 20 2016

The Severe Thunderstorm Watch for portions of northeast and east
central ND till 11pm... has been upgraded to a Tornado Watch for
the northern portions of the Watch area.

5pm analysis had in excess of 5000 j/kg of CAPE in the 0-2 km
subcloud layer over northcentral ND... with RUC12 showing this
expanding steadily eastward into northeast ND and far northwest MN
through 03z. in addition... 0-2km VGP /Vorticity Generation
Parameter/ approaches values of from .6 to .8 in that region...
which local research has shown to be quite conducive to rapid
tornadogenesis.

Meanwhile cloudmass over the central Red River Valley hasn't yet
dissipated... but cloudfree just west of the valley has rapidly
ramped up in heat and instability levels.

&&

.SHORT TERM...(This evening through Thursday)
Issued at 118 PM CDT Wed Jul 20 2016

Forecast impacts in the short term will be temperatures and severe
threat.

For update adjusted heat headlines to account for cloud cover
limiting temperatures.

In spite of the slow dissipation of low level stratus across the
region holding temperatures down sufficient instability and cape
exist for severe potential. Timing of convective initiation still
somewhat uncertain however short wave lifting through Montana
likely to interact with boundary across NW-N central ND with
convection then propagating east tonight. In line with the SPC
outlook the favored area looks to be along and north of highway
200. Similar to last night large hail and damaging winds will be
the main threats. Weak surface boundary/cool front should be
through all but the east by morning. The far NW will be first to
feel cooler/drier air moving in behind boundary late tonight. The
remainder of the fa will see another muggy night.

Column cools a bit Thursday in wake of boundary passage but
remains mild. Lower dewpoints begin to move in from NW-SE. The
far south will likely remain warm and humid enough that some sort
of heat headline possible but at this point looks marginal. With
high pressure moving in anticipating a break in the stormy weather
and will keep forecast dry.

.LONG TERM...(Thursday night through Wednesday)
Issued at 118 PM CDT Wed Jul 20 2016

Friday-Wednesday...Main concern will be severe thunderstorm
potential Friday evening/overnight...and then again Saturday
afternoon/evening. Synoptically speaking...models are in good
agreement and indicate a stronger signal raising confidence that a
couple more severe (possibly significant) event will occur through
the early part of the weekend.  Confidence still low with details
(exact timing...exact threats and evolution).  Quieter weather on
tap to end the weekend heading into next week. Active weather again
looks possible by the middle of next week. Temperatures cooler
following the passage of a cold front on Saturday...more toward
normal values.

&&

.AVIATION...(For the 06Z TAFS through 06Z Thursday evening)
Issued at 555 PM CDT Wed Jul 20 2016

A line of strong to severe thunderstorms with areas of MVFR cigs
and vsbys will persist across east cnetral ND and much of
northwest MN through the midnight and overnight period. Storms
should exit eastern ND FAR-GFK-TVF areas by 08z...and push out the
DTL-FSE-BJI areas through 11z. Expect mainly VFR conds across
eastern ND and the Red River Valley corridor on Thursday. in
Northwest MN...expect areas of MVFR cigs to persist thru 15z...
with VFR conds after 15z.

&&

.FGF Watches/Warnings/Advisories...
ND...None.
MN...None.
&&

UPDATE...Gust
SHORT TERM...Voelker
LONG TERM...TG
AVIATION...Gust

Hazardous weather outlook, Jul 20, 3:55 AM CDT, 20 hours 48 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GRAND FORKS ND
355 AM CDT WED JUL 20 2016

MNZ001>003-015-022>024-027>032-040-NDZ027-030-039-049-052-053-
210900-
WEST POLK-NORMAN-CLAY-EAST POLK-MAHNOMEN-SOUTH CLEARWATER-HUBBARD-
WEST BECKER-EAST BECKER-WILKIN-WEST OTTER TAIL-EAST OTTER TAIL-
WADENA-GRANT-GRAND FORKS-TRAILL-CASS-RANSOM-SARGENT-RICHLAND-
355 AM CDT WED JUL 20 2016

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

.DAY ONE...TODAY AND TONIGHT

AN EXCESSIVE HEAT WARNING IS IN EFFECT FOR THE AFTERNOON INTO
EARLY EVENING, DUE TO THE COMBINATION OF HOT TEMPERATURES AND
MUGGY CONDITIONS. THUNDERSTORMS ARE EXPECTED BY LATE AFTERNOON
INTO TONIGHT, MAINLY ALONG AND NORTH OF HIGHWAY 2. SOME OF THESE
STORMS MAY BE SEVERE WITH LARGE HAIL, STRONG WINDS, AND LOCALLY
HEAVY RAIN.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THURSDAY AFTERNOON INTO EARLY EVENING WILL ALSO BE VERY WARM AND
HUMID. THUNDERSTORMS ARE POSSIBLE LATE FRIDAY AFTERNOON INTO
FRIDAY NIGHT, THIS TIME MAINLY ALONG AND SOUTH OF HIGHWAY 2.
THUNDERSTORMS REMAIN IN THE FORECAST SATURDAY INTO SUNDAY AND
AGAIN TUESDAY INTO WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

MNZ004>009-013-014-016-017-NDZ006>008-014>016-024-026-028-029-038-
054-210900-
KITTSON-ROSEAU-LAKE OF THE WOODS-WEST MARSHALL-EAST MARSHALL-
NORTH BELTRAMI-PENNINGTON-RED LAKE-NORTH CLEARWATER-
SOUTH BELTRAMI-TOWNER-CAVALIER-PEMBINA-BENSON-RAMSEY-
EASTERN WALSH COUNTY-EDDY-NELSON-GRIGGS-STEELE-BARNES-
WESTERN WALSH COUNTY-
355 AM CDT WED JUL 20 2016

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

.DAY ONE...TODAY AND TONIGHT

A HEAT ADVISORY IS IN EFFECT FOR THE AFTERNOON INTO EARLY
EVENING, DUE TO THE COMBINATION OF HOT TEMPERATURES AND MUGGY
CONDITIONS. THUNDERSTORMS ARE EXPECTED BY LATE AFTERNOON INTO
TONIGHT, MAINLY ALONG AND NORTH OF HIGHWAY 2. SOME OF THESE STORMS
MAY BE SEVERE WITH LARGE HAIL, STRONG WINDS, AND LOCALLY HEAVY
RAIN.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THUNDERSTORMS ARE POSSIBLE LATE FRIDAY AFTERNOON INTO FRIDAY
NIGHT, THIS TIME MAINLY ALONG AND SOUTH OF HIGHWAY 2.
THUNDERSTORMS REMAIN IN THE FORECAST SATURDAY INTO SUNDAY AND
AGAIN TUESDAY INTO WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

In the hours before

Local storm report, Jul 21, 12:05 AM CDT, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1205 AM CDT THU JUL 21 2016

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

1151 PM     TSTM WND GST     1 N ADA                 47.31N 96.51W
07/20/2016  M53 MPH          NORMAN             MN   MESONET

            PEAK WINDS MEASURED AT THE NDAWN STATION.

&&

GGUST

Local storm report, Jul 21, 12:12 AM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1212 AM CDT THU JUL 21 2016

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

1204 AM     TSTM WND GST     3 S WAUKON              47.33N 96.13W
07/21/2016  M51 MPH          NORMAN             MN   MESONET

            PEAK WINDS MEASURED AT THE NDAWN STATION.

&&

GGUST

Local storm report, Jul 21, 12:14 AM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1214 AM CDT THU JUL 21 2016

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

1211 AM     TSTM WND GST     4 S MAHNOMEN            47.26N 95.97W
07/21/2016  M71 MPH          MAHNOMEN           MN   MESONET

            PEAK WINDS MEASURED AT THE RWIS ALONG HWY 59.

&&

GGUST

Local storm report, Jul 21, 12:21 AM CDT, 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1221 AM CDT THU JUL 21 2016

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

1203 AM     TSTM WND GST     3 NNW FARGO             46.92N 96.84W
07/21/2016  M69 MPH          CASS               ND   ASOS

            PEAK WIND OF 60 KNOTS MEASURED AT THE FARGO AIRPORT
            /KFAR/.

&&

GGUST

Local storm report, Jul 21, 12:32 AM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1232 AM CDT THU JUL 21 2016

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

1217 AM     TSTM WND GST     2 SE DILWORTH           46.85N 96.67W
07/21/2016  M55 MPH          CLAY               MN   MESONET

            PEAK WINDS MEASURED AT THE RWIS STATION ALONG INTERSTATE
            94.

&&

GGUST

Local storm report, Jul 21, 12:38 AM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1238 AM CDT THU JUL 21 2016

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

1205 AM     TSTM WND DMG     10 SE FERTILE           47.43N 96.14W
07/21/2016                   NORMAN             MN   TRAINED SPOTTER

            TWO BOX ELDER TREES DOWNED. THE LARGER TREE WAS
            APPROXIMATELY 2 FEET IN DIAMETER.

&&

HOPKINS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 9:01 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Roseau	59 min
Jul 20, 9:59 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Kittson, Lake of the Woods, Marshall, Roseau	61 min
Jul 20, 10:42 PM CDT	Severe Thunderstorm Warning	FGF	Polk	48 min
Jul 20, 11:00 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Polk	45 min
Jul 20, 11:07 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods, Marshall, Pennington	53 min
Jul 20, 11:13 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	62 min
Jul 20, 11:26 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington, Polk, Red Lake	41 min
Jul 20, 11:36 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Norman	39 min
Jul 20, 11:58 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods	32 min
Jul 21, 12:00 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Norman	60 min
Jul 21, 12:03 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Norman and 1 more	57 min
Jul 21, 12:37 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Otter Tail, Wilkin	53 min
Jul 21, 1:20 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Grant, Otter Tail, Wadena, Wilkin	55 min
Jul 21, 2:14 AM CDT	Severe Thunderstorm Warning	FGF	Grant	46 min
Jul 21, 3:49 AM CDT	Special Weather Statement	FGF	Grant	56 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2016 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.