Alert archive / North Dakota / Special Weather Statements in 2020
Special Weather Statement, NWS Grand Forks, ND
NWS Grand Forks, ND issued this special weather statement at Jul 4, 2020, 4:18 AM CDT for Grand Forks County, North Dakota. It was in force for 57 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 4, 2020, 4:18 AM CDT (09:18 UTC)
- Expired
- Jul 4, 2020, 5:15 AM CDT
- In force
- 57 min
- Issued by
- NWS Grand Forks, ND
County Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 62 km from the middle of the area, began a volume at 09:19 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 00:00Z, 9.3 hours before the alert went out and 292 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.
- Mixed-layer CAPE
- 595 J/kg
- Mixed-layer CIN
- -221 J/kg
- Mixed-layer LCL
- 2139 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.1
The text
As transmitted.
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</html>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 4, 4:16 AM CDT, 2 minutes earlier.
Area forecast discussion, Jul 4, 4:16 AM CDT, 2 minutes before
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<body>
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<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>Hazardous weather outlook, Jul 3, 4:37 AM CDT, 23 hours 41 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 437 AM CDT Fri Jul 3 2020 MNZ004-007-NDZ006>008-014>016-024-026>028-054-040945- Kittson-West Marshall-Towner-Cavalier-Pembina-Benson-Ramsey- Eastern Walsh-Eddy-Nelson-Grand Forks-Griggs-Western Walsh- 437 AM CDT Fri Jul 3 2020 This hazardous weather outlook is for portions of eastern North Dakota and northwest Minnesota. .DAY ONE...Today and Tonight Scattered thunderstorms are possible this afternoon across the Devils lake Basin, spreading into across northeast North Dakota and into northwest Minnesota through early evening. A few storms may become severe and produce quarter sized hail and winds to 60 mph, along with frequent lightning and brief periods of heavy rain. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a chance for thunderstorms every day from Sunday to Friday. A few storms may be strong to severe Sunday. Some storms may produce excessive rainfall. Areas like the Devils Lake basin, central and northern Red River Valley, and northwest Minnesota that have received recent excessive rainfall may be susceptible to the risk of flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required. MNZ001>003-005-006-008-009-013>017-022>024-027>032-040-NDZ029-030- 038-039-049-052-053-040945- West Polk-Norman-Clay-Roseau-Lake Of The Woods-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- Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland- 437 AM CDT Fri Jul 3 2020 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight Scattered thunderstorms are possible later tonight, and may produce frequent lightning and brief periods of heavy rain. Otherwise no hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Saturday through Thursday There is a chance for thunderstorms every day from Sunday to Friday. A few storms may be strong to severe Sunday. Some storms may produce excessive rainfall. Areas like the Devils Lake basin, central and northern Red River Valley, and northwest Minnesota that have received recent excessive rainfall may be susceptible to the risk of flash flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected for today.
In the hours before
Special weather statement, Jul 4, 12:32 AM CDT, 3 hours 46 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
1232 AM CDT Sat Jul 4 2020
MNZ004-005-007-008-NDZ008-040630-
East Marshall MN-Kittson MN-Roseau MN-West Marshall MN-Pembina ND-
1232 AM CDT Sat Jul 4 2020
...SPECIAL WEATHER STATEMENT...
At 1230 AM CDT, Doppler radar was tracking a strong thunderstorm near
Halma, or 34 miles west of Roseau, moving east at 15 mph.
Torrential rainfall, pea size hail and winds in excess of 30 mph
will be possible with this storm.
Locations impacted include...
Hallock, Karlstad, Greenbush, Pembina, Lancaster, Middle River and
Lake Bronson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
One to two inches of rainfall has already fallen with at least one
inch of additional rain expected. This may lead to localized
flooding. Do not drive your vehicle through flooded roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.
&&
LAT...LON 4900 9642 4866 9606 4837 9608 4853 9708
4900 9750
TIME...MOT...LOC 0530Z 288DEG 13KT 4868 9647
CJLocal storm report, Jul 4, 12:37 AM CDT, 3 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1237 AM CDT SAT JUL 4 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1220 AM HAIL OLD MILL STATE PARK 48.36N 96.57W
07/04/2020 E0.75 INCH MARSHALL MN PUBLIC
DIME SIZED HAIL AND LOTS OF VERY HEAVY RAIN. HAIL
POSSIBLY LARGER BEFORE MELTING.
&&
GGUSTSpecial weather statement, Jul 4, 1:32 AM CDT, 2 hours 46 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
132 AM CDT Sat Jul 4 2020
MNZ005-040730-
Roseau MN-
132 AM CDT Sat Jul 4 2020
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ROSEAU COUNTY UNTIL
230 AM CDT...
At 131 AM CDT, Doppler radar was tracking a strong thunderstorm near
Haug, or 16 miles west of Roseau, moving east at 15 mph.
Nickel size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Roseau, Fox, Pinecreek, Ross and Haug.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.
&&
LAT...LON 4877 9559 4881 9622 4894 9626 4900 9584
4900 9563
TIME...MOT...LOC 0631Z 262DEG 15KT 4886 9613
CJSpecial weather statement, Jul 4, 1:36 AM CDT, 2 hours 42 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
136 AM CDT Sat Jul 4 2020
MNZ004-005-007-008-NDZ008-016-040730-
East Marshall MN-Kittson MN-Roseau MN-West Marshall MN-Pembina ND-
Eastern Walsh County ND-
136 AM CDT Sat Jul 4 2020
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MARSHALL...
KITTSON...SOUTHWESTERN ROSEAU...NORTHEASTERN WALSH AND EASTERN
PEMBINA COUNTIES UNTIL 230 AM CDT...
At 135 AM CDT, Doppler radar was tracking a strong thunderstorm near
Stephen, or 22 miles east of Grafton, moving east at 15 mph.
Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.
Locations impacted include...
Hallock, Drayton, Karlstad, Stephen, Pembina, Newfolden and
Lancaster.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall may lead to localized flooding. Do not drive
your vehicle through flooded roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.
&&
LAT...LON 4839 9706 4854 9730 4900 9741 4893 9652
4829 9613
TIME...MOT...LOC 0635Z 261DEG 12KT 4850 9693
CJSpecial weather statement, Jul 4, 3:57 AM CDT, 21 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
357 AM CDT Sat Jul 4 2020
MNZ001-004-007-NDZ008-016-027-041000-
Kittson MN-West Polk MN-West Marshall MN-Pembina ND-
Eastern Walsh County ND-Grand Forks ND-
357 AM CDT Sat Jul 4 2020
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN MARSHALL...NORTHWESTERN
POLK...WESTERN KITTSON...NORTH CENTRAL GRAND FORKS...EASTERN WALSH
AND SOUTHEASTERN PEMBINA COUNTIES UNTIL 500 AM CDT...
At 357 AM CDT, Doppler radar was tracking a strong thunderstorm over
Ardoch, or 14 miles south of Grafton. This storm was nearly
stationary.
Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.
Locations impacted include...
Grafton, Drayton, Minto, Alvarado, St. Thomas, Oslo and Forest River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Grand Forks.
&&
LAT...LON 4813 9742 4841 9770 4879 9746 4891 9698
4813 9688
TIME...MOT...LOC 0857Z 257DEG 4KT 4821 9736
CJSpecial weather statement, Jul 4, 4:18 AM CDT, 0 minutes before
Special Weather Statement National Weather Service Grand Forks ND 418 AM CDT Sat Jul 4 2020 MNZ001-007-NDZ016-027-041015- West Polk MN-West Marshall MN-Eastern Walsh County ND-Grand Forks ND- 418 AM CDT Sat Jul 4 2020 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MARSHALL... NORTHWESTERN POLK...NORTHEASTERN GRAND FORKS AND SOUTHEASTERN WALSH COUNTIES UNTIL 515 AM CDT... At 417 AM CDT, Doppler radar was tracking a strong thunderstorm over Mekinock, or 17 miles northwest of Grand Forks. This storm was nearly stationary. Nickel size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Alvarado, Manvel, Oslo, Gilby, Forest River, Mekinock and Forest River Colony. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service office in Grand Forks. && LAT...LON 4798 9762 4820 9774 4831 9690 4797 9682 TIME...MOT...LOC 0917Z 256DEG 4KT 4802 9741 CJ
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 7:43 PM CDT | Special Weather Statement | FGF | Roseau | 62 min |
| Jul 3, 8:57 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 63 min |
| Jul 3, 9:51 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 54 min |
| Jul 3, 11:58 PM CDT | Special Weather Statement | FGF | Roseau | 62 min |
| Jul 4, 12:02 AM CDT | Special Weather Statement | FGF | Marshall | 58 min |
| Jul 4, 12:07 AM CDT | Severe Thunderstorm Warning | FGF | Marshall, Polk | 25 min |
| Jul 4, 12:32 AM CDT | Special Weather Statement | FGF | Kittson | 58 min |
| Jul 4, 1:32 AM CDT | Special Weather Statement | FGF | Roseau | 58 min |
| Jul 4, 1:36 AM CDT | Special Weather Statement | FGF | Kittson, Marshall | 54 min |
| Jul 4, 2:05 AM CDT | Flash Flood Warning | FGF | Kittson, Marshall | 9 hr |
| Jul 4, 2:13 AM CDT | Areal Flood Advisory | FGF | Kittson, Marshall | 9 hr |
| Jul 4, 2:26 AM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall | 39 min |
| Jul 4, 4:55 AM CDT | Areal Flood Advisory | FGF | Kittson, Marshall | 14 hr |
| Jul 4, 6:15 AM CDT | Flash Flood Warning | FGF | Kittson, Marshall | 8 hr |
| Jul 4, 9:13 AM CDT | River Flood Warning | FGF | Marshall, Polk | 4 days |
| Jul 4, 9:13 AM CDT | River Flood Warning | FGF | Kittson, Marshall | 6 days |
| Jul 4, 9:13 AM CDT | River Flood Warning | FGF | Kittson | 7 days |
| Jul 4, 10:09 AM CDT | Special Weather Statement | FGF | Polk | 66 min |
| Jul 4, 11:29 AM CDT | Areal Flood Advisory | FGF | Kittson, Marshall | 8 hr |
| Jul 4, 5:01 PM CDT | Special Weather Statement | FGF | Polk, Red Lake | 44 min |
| Jul 4, 5:21 PM CDT | Special Weather Statement | FGF | Beltrami | 54 min |
| Jul 4, 5:45 PM CDT | Special Weather Statement | FGF | Polk, Red Lake | 60 min |
| Jul 4, 5:57 PM CDT | Special Weather Statement | FGF | Roseau | 63 min |
| Jul 4, 6:01 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 59 min |
| Jul 4, 6:09 PM CDT | Special Weather Statement | FGF | Beltrami | 66 min |
| Jul 4, 6:24 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Marshall, Roseau | 36 min |
| Jul 4, 6:25 PM CDT | Areal Flood Advisory | FGF | Polk, Red Lake | 12 hr |
| Jul 4, 6:42 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Marshall | 48 min |
| Jul 4, 6:51 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 39 min |
| Jul 4, 3:57 AM CDT | Special Weather Statement | FGF | Pembina | 63 min |
| Jul 4, 6:08 AM CDT | Flash Flood Warning | FGF | Grand Forks, Walsh | 8 hr |
| Jul 4, 8:47 AM CDT | Special Weather Statement | FGF | Grand Forks | 58 min |
| Jul 4, 4:06 PM CDT | Special Weather Statement | FGF | Cass | 54 min |
| Jul 4, 4:14 PM CDT | Special Weather Statement | FGF | Ransom | 61 min |
| Jul 4, 4:52 PM CDT | Special Weather Statement | FGF | Ransom | 53 min |
| Jul 4, 5:08 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Ransom, Richland | 19 min |
| Jul 4, 5:47 PM CDT | Special Weather Statement | FGF | Ransom | 58 min |
Nearby
Special Weather Statements in North Dakota, 2020Every special weather statement in 2020
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.