Alert archive / North Dakota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 113, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 8, 2018, 6:27 PM CDT for Ransom County, Richland County, Sargent County, North Dakota. It was in force for 52 min. 5 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 8, 2018, 6:27 PM CDT (23:27 UTC)
- Expired
- Jul 8, 2018, 7:19 PM CDT
- In force
- 52 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 2.0 in
- Wind
- 60.0 mph
Counties Ransom County, ND, Richland County, ND, Sargent County, ND
The radar
The Aberdeen radar (KABR), 124 km from the middle of the area, began a volume at 23:26 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 8, 6:45 PM CDT | HAIL 1 | 2 N Milnor, ND | |
| Jul 8, 6:46 PM CDT | TORNADO 1 | Milnor, ND | PARTIALLY RAIN WRAPPED TORNADO TRACKED ACROSS MILNOR TOWNSHIP. TORNADO BROKE NUMEROUS SMALL BRANCHES AND A TREE TRUNK IN THE TOWN OF MILNOR. FURTHER EAST, LARGE TREE LIMBS WERE BROKEN DOWN JUST SOUTH OF COUNTY ROAD 13 AND THE ROOF OF A LARGE FARM SHED WAS DAMA |
| Jul 8, 6:50 PM CDT | HAIL 1.75 | Milnor, ND | |
| Jul 8, 6:53 PM CDT | TSTM WND DMG | 2 Se Milnor, ND | WHEAT FIELD WITH SCATTERED DAMAGE. |
| Jul 8, 6:58 PM CDT | FUNNEL CLOUD | 3 E Milnor, ND | WITNESSED AT LEAST 3 FUNNELS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 8, 3:52 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.5 hours before the alert went out and 173 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
- 1150 J/kg
- Mixed-layer CIN
- -332 J/kg
- Mixed-layer LCL
- 1241 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 223 m²/s²
- 0-3 km storm-relative helicity
- 232 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
854
WUUS53 KFGF 082327
SVRFGF
NDC073-077-081-090030-
/O.NEW.KFGF.SV.W.0113.180708T2327Z-180709T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Eastern ND/Grand Forks ND
627 PM CDT SUN JUL 8 2018
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
Southeastern Ransom County in southeastern North Dakota...
Southern Richland County in southeastern North Dakota...
Northeastern Sargent County in southeastern North Dakota...
* Until 730 PM CDT.
* At 627 PM CDT, a severe thunderstorm was located near Milnor, or 43
miles west of Wahpeton, moving east at 25 mph.
HAZARD...Two inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* This severe thunderstorm will be near...
Milnor around 635 PM CDT.
De Lamere and McLeod around 650 PM CDT.
Hamlin around 705 PM CDT.
Wyndmere around 715 PM CDT.
Barney and Mantador around 730 PM CDT.
This includes Interstate 29 between mile markers 2 and 28.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4626 9769 4646 9753 4632 9670 4595 9683
TIME...MOT...LOC 2327Z 289DEG 20KT 4633 9751
HAIL...2.00IN
WIND...60MPH
$$
NC1 follow-up statement
795
WWUS53 KFGF 090019
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
719 PM CDT SUN JUL 8 2018
NDC073-077-081-090029-
/O.CAN.KFGF.SV.W.0113.000000T0000Z-180709T0030Z/
Ransom ND-Richland ND-Sargent ND-
719 PM CDT SUN JUL 8 2018
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RANSOM...SOUTHERN
RICHLAND AND NORTHEASTERN SARGENT COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However small hail is
still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
southeastern North Dakota.
LAT...LON 4626 9769 4646 9753 4632 9670 4595 9683
TIME...MOT...LOC 0016Z 289DEG 20KT 4623 9711
$$
NCThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 3:18 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Grand Forks, Griggs, Nelson, Ramsey and 1 more | 57 min |
| Jul 8, 4:13 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Grand Forks, Griggs, Nelson, Ramsey and 2 more | 62 min |
| Jul 8, 4:19 AM CDT | Special Weather Statement | FGF | Ramsey | 56 min |
| Jul 8, 4:52 AM CDT | Severe Thunderstorm Warning | FGF | Grand Forks, Steele | 53 min |
| Jul 8, 5:35 AM CDT | Areal Flood Advisory | FGF | Grand Forks | 85 min |
| Jul 8, 6:37 PM CDT | Tornado Warning | FGF | Ransom, Richland, Sargent | 38 min |
| Jul 8, 6:41 PM CDT | Tornado Warning | FGF | Sargent | 49 min |
| Jul 8, 6:56 PM CDT | Special Weather Statement | FGF | Cass | 34 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2018Every severe thunderstorm warning in 2018
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.