Alert archive / North Dakota / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 151, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 1, 2016, 5:21 PM CDT for Nelson County, Ramsey County, Walsh County, North Dakota. It was in force for 54 min. 1 report 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
- Aug 1, 2016, 5:21 PM CDT (22:21 UTC)
- Expired
- Aug 1, 2016, 6:15 PM CDT
- In force
- 54 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Nelson County, ND, Ramsey County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 113 km from the middle of the area, began a volume at 22:20 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 |
|---|---|---|---|
| Aug 1, 5:22 PM CDT | HAIL 1 | 6 N Southam, ND | DIME TO QUARTER SIZED HAIL AND VERY HEAVY RAIN. |
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 |
|---|---|---|---|
| Aug 1, 3:19 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 10.4 hours before the alert went out and 238 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
- 248 J/kg
- Mixed-layer CIN
- -388 J/kg
- Mixed-layer LCL
- 2111 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
465 WUUS53 KFGF 012221 SVRFGF NDC063-071-099-012315- /O.NEW.KFGF.SV.W.0151.160801T2221Z-160801T2315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 521 PM CDT MON AUG 1 2016 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN RAMSEY COUNTY IN NORTHEASTERN NORTH DAKOTA... SOUTHWESTERN WALSH COUNTY IN NORTHEASTERN NORTH DAKOTA... NORTHWESTERN NELSON COUNTY IN NORTHEASTERN NORTH DAKOTA... * UNTIL 615 PM CDT * AT 521 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR SOUTHAM...OR 19 MILES NORTHEAST OF DEVILS LAKE...MOVING EAST AT 30 MPH. HAZARD...QUARTER SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...DAMAGE TO VEHICLES IS EXPECTED. * THIS SEVERE THUNDERSTORM WILL BE NEAR... BROCKET AND LAWTON AROUND 535 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4830 9866 4844 9815 4814 9798 4803 9856 TIME...MOT...LOC 2221Z 253DEG 24KT 4822 9849 TORNADO...POSSIBLE HAIL...1.00IN WIND...<50MPH $$ HOPKINS
2 follow-up statements
515 WWUS53 KFGF 012247 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 547 PM CDT MON AUG 1 2016 NDC063-071-099-012315- /O.CON.KFGF.SV.W.0151.000000T0000Z-160801T2315Z/ RAMSEY ND-WALSH ND-NELSON ND- 547 PM CDT MON AUG 1 2016 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR SOUTHEASTERN RAMSEY...SOUTHWESTERN WALSH AND NORTHWESTERN NELSON COUNTIES... AT 547 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BROCKET...OR 27 MILES EAST OF DEVILS LAKE...MOVING EAST AT 20 MPH. HAZARD...QUARTER SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...DAMAGE TO VEHICLES IS EXPECTED. THIS SEVERE STORM WILL BE NEAR... WHITMAN AROUND 610 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4844 9815 4814 9798 4803 9856 4832 9857 TIME...MOT...LOC 2247Z 257DEG 18KT 4824 9831 TORNADO...POSSIBLE HAIL...1.00IN WIND...<50MPH $$ HOPKINS
490
WWUS53 KFGF 012309
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
609 PM CDT MON AUG 1 2016
NDC063-071-099-012319-
/O.EXP.KFGF.SV.W.0151.000000T0000Z-160801T2315Z/
RAMSEY ND-WALSH ND-NELSON ND-
609 PM CDT MON AUG 1 2016
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN RAMSEY...
SOUTHWESTERN WALSH AND NORTHWESTERN NELSON COUNTIES WILL EXPIRE AT
615 PM CDT...
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 WILL BE ALLOWED TO EXPIRE. HOWEVER SMALL HAIL
IS STILL POSSIBLE WITH THIS THUNDERSTORM.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT FOR
NORTHEASTERN NORTH DAKOTA.
LAT...LON 4844 9815 4814 9798 4803 9856 4832 9857
TIME...MOT...LOC 2307Z 253DEG 24KT 4824 9831
$$
HOPKINSThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:41 AM CDT | Special Weather Statement | FGF | Nelson | 64 min |
| Aug 1, 8:48 AM CDT | Special Weather Statement | FGF | Nelson | 27 min |
| Aug 1, 9:22 AM CDT | Areal Flood Advisory | FGF | Nelson | 3 hr |
| Aug 1, 10:29 AM CDT | Special Weather Statement | FGF | Cavalier | 61 min |
| Aug 1, 3:45 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy | 60 min |
| Aug 1, 4:43 PM CDT | Severe Thunderstorm Warning | FGF | Ramsey | 47 min |
| Aug 1, 6:32 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom | 58 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2016Every 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.