Alert archive / North Dakota / Tornado Warnings in 2014
Tornado Warning 17, NWS Grand Forks, ND
NWS Grand Forks, ND issued this tornado warning at Jul 21, 2014, 8:29 PM CDT for Grand Forks County, North Dakota. It was in force for 46 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, 2014, 8:29 PM CDT (01:29 UTC)
- Expired
- Jul 21, 2014, 9:15 PM CDT
- In force
- 46 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 35 km from the middle of the area, began a volume at 01:30 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, 8:29 PM CDT | TORNADO 1 | 2 E Kempton, ND | A TORNADO TRACKED INTERMITTENTLY FOR ABOUT 8 MILES TO ABOUT 2 SSE OF ARVILLA BY 841 PM CDT. THIS TORNADO SNARLED TREES IN SHELTER BELTS AND BROKE DOWN NUMEROUS LARGE TREE BRANCHES...LIMBS AND WHOLE TREE TRUNKS ALONG ITS PATH. A FEW RURAL RESIDENCES AND FARM BU |
| Jul 21, 8:35 PM CDT | TSTM WND DMG | Grand Forks, ND | 3 TO 4 INCH TREE BRANCHES DOWN VICINITY OF GROUND ROUND ON 32 AV S. NUMEROUS SMALLER BRANCHES ON GROUND VICINITY OF POST OFFICE ON 28 AV S. |
| Jul 21, 8:35 PM CDT | TSTM WND DMG | Grand Forks, ND | TREE DOWN IN RESIDENTS BACKYARD ON UNIVERSITY AV. |
| Jul 21, 8:36 PM CDT | TSTM WND DMG | Larimore, ND | NUMEROUS LARGE TREE BRANCHES AND LIMBS AND SEVERAL TREE TRUNKS WERE SNAPPED OFF DUE TO PROLONGED PERIODS OF DAMAGIMG WINDS. PEAK WINDS ESTIMATED TO 70 MPH. |
| Jul 21, 8:38 PM CDT | TSTM WND DMG | Holmes, ND | WIDESPREAD WIND DAMAGE NOTED IN SHELTER BELTS ACROSS UNION TOWNSHIP. NUMEROUS LARGE TREE BRANCHES AND LIMBS WERE BROKEN DOWN AND AN OCCASIONAL TREE TRUNK WAS SNAPPED. |
| Jul 21, 8:42 PM CDT | FUNNEL CLOUD | 2 Ese Arvilla, ND | FUNNEL CLOUD WAS VIEWED FROM TURTLE RIVER STATE PARK. |
| Jul 21, 8:45 PM CDT | FUNNEL CLOUD | 7 Wsw Larimore, ND | |
| Jul 21, 8:53 PM CDT | FUNNEL CLOUD | 6 W Larimore, ND | |
| Jul 21, 9:00 PM CDT | TSTM WND DMG | 1 Nw Grand Forks, ND | A FEW LARGE TREES SNAPPED ALONG GATEWAY DRIVE. THIRD EPISODE OF DAMAGING WINDS IN THAT AREA FOR THE EVENING. |
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 21, 5:07 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 1.5 hours before the alert went out and 307 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
- 3234 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1331 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
765
WFUS53 KFGF 220129
TORFGF
NDC035-220215-
/O.NEW.KFGF.TO.W.0017.140722T0129Z-140722T0215Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
829 PM CDT MON JUL 21 2014
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* TORNADO WARNING FOR...
GRAND FORKS COUNTY IN NORTHEAST NORTH DAKOTA...
* UNTIL 915 PM CDT
* AT 825 PM CDT...A SEVERE SQUALL LINE CAPABLE OF PRODUCING TORNADOES
THAT MAY NOT BE VISIBLE DUE TO HEAVY RAIN WAS LOCATED NEAR
KEMPTON...AND MOVING NORTHEAST AT 45 MPH.
* THREE CIRCULATIONS WERE SEEN ON RADAR...ONE NEAR KEMPTON...ONE
WEST OF LARIMORE AND ANOTHER SOUTHWEST OF HOLMES.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.
* THIS DANGEROUS STORM WILL BE NEAR...
ARVILLA AROUND 835 PM CDT.
EMERADO AROUND 840 PM CDT.
GRAND FORKS AFB AROUND 845 PM CDT.
MEKINOCK AROUND 850 PM CDT.
OTHER LOCATIONS IN THE WARNING INCLUDE MANVEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GRAND
FORKS.
&&
LAT...LON 4790 9702 4787 9703 4767 9738 4767 9741
4767 9747 4787 9787 4819 9722
TIME...MOT...LOC 0128Z 227DEG 40KT 4782 9754
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
JR2 follow-up statements
002
WWUS53 KFGF 220152
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
852 PM CDT MON JUL 21 2014
NDC035-220215-
/O.CON.KFGF.TO.W.0017.000000T0000Z-140722T0215Z/
GRAND FORKS ND-
852 PM CDT MON JUL 21 2014
...A TORNADO WARNING REMAINS IN EFFECT FOR EASTERN GRAND FORKS COUNTY
UNTIL 915 PM CDT...
AT 850 PM CDT...A SEVERE SQUALL LINE CAPABLE OF PRODUCING TORNADOES
THAT MAY NOT BE VISIBLE DUE TO HEAVY RAIN WAS LOCATED NEAR
MEKINOCK...AND MOVING NORTHEAST AT 45 MPH.
HAZARD...TORNADO.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...EXPECT DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.
THE DANGEROUS STORM WILL BE NEAR...
MANVEL AROUND 900 PM CDT.
FOR MOTORISTS ON INTERSTATE 29...THE DANGEROUS STORM WILL BE
BETWEEN...MILE MARKERS 149 AND 153 AROUND 900 PM CDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GRAND
FORKS.
&&
LAT...LON 4790 9703 4786 9704 4776 9723 4799 9763
4818 9723
TIME...MOT...LOC 0152Z 227DEG 40KT 4800 9725
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
JR537
WWUS53 KFGF 220209
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
909 PM CDT MON JUL 21 2014
NDC035-220219-
/O.EXP.KFGF.TO.W.0017.000000T0000Z-140722T0215Z/
GRAND FORKS ND-
909 PM CDT MON JUL 21 2014
...THE TORNADO WARNING FOR EASTERN GRAND FORKS COUNTY WILL EXPIRE AT
915 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA. HOWEVER...GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.
LAT...LON 4790 9703 4786 9704 4776 9723 4799 9763
4818 9723
TIME...MOT...LOC 0209Z 227DEG 40KT 4813 9704
$$
JRThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 7:03 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 27 min |
| Jul 21, 7:26 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Eddy, Griggs, Nelson, Steele | 64 min |
| Jul 21, 7:30 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 60 min |
| Jul 21, 7:38 PM CDT | Tornado Warning | FGF | Eddy, Griggs, Nelson, Steele | 37 min |
| Jul 21, 7:48 PM CDT | Severe Thunderstorm Warning | FGF | Grand Forks | 57 min |
| Jul 21, 8:09 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Griggs, Nelson, Steele and 2 more | 66 min |
| Jul 21, 8:26 PM CDT | Flash Flood Warning | FGF | Grand Forks | 6 hr |
| Jul 21, 8:43 PM CDT | Severe Thunderstorm Warning | FGF | Cass, Grand Forks, Traill | 46 min |
| Jul 21, 11:10 PM CDT | High Wind Warning | FGF | Grand Forks, Traill | 5 hr |
Nearby
Tornado Warnings in North Dakota, 2014Every tornado warning in 2014Tornadoes in 2014
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.