Alert archive / North Dakota / Special Weather Statements in 2012
Special Weather Statement, NWS Grand Forks, ND
NWS Grand Forks, ND issued this special weather statement at Aug 29, 2012, 10:10 PM CDT for Grand Forks County, North Dakota. It was in force for 65 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
- Aug 29, 2012, 10:10 PM CDT (03:10 UTC)
- Expired
- Aug 29, 2012, 11:15 PM CDT
- In force
- 65 min
- Issued by
- NWS Grand Forks, ND
County Grand Forks County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 57 km from the middle of the area, began a volume at 03:12 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, 3.2 hours before the alert went out and 293 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
- 200 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 3785 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
715
WWUS83 KFGF 300310
SPSFGF
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1010 PM CDT WED AUG 29 2012
MNZ001-NDZ027-300415-
GRAND FORKS ND-WEST POLK MN-
1010 PM CDT WED AUG 29 2012
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN POLK AND GRAND FORKS
COUNTIES UNTIL 1115 PM CDT...
AT 1007 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
THUNDERSTORMS ALONG A LINE EXTENDING FROM 13 MILES SOUTHWEST OF MINTO
TO 14 MILES SOUTHWEST OF LARIMORE...MOVING TO THE EAST AT 30 MPH.
WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THE STORMS...ALONG WITH
HEAVY RAIN.
THE STORMS WILL BE NEAR...
JOHNSTOWN AROUND 1015 PM CDT.
LARIMORE AND GILBY AROUND 1020 PM CDT.
KEMPTON AND HONEYFORD AROUND 1025 PM CDT.
ARVILLA AROUND 1030 PM CDT.
FOR MOTORISTS ON INTERSTATE 29...THE STORMS WILL BE BETWEEN...MILE
MARKERS 125 AND 159...
BE PREPARED TO TAKE SHELTER IF THE STORMS INTENSIFY AND BECOME
SEVERE...OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE.
TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY.
LAT...LON 4818 9716 4816 9716 4816 9689 4771 9687
4771 9787 4817 9787
TIME...MOT...LOC 0310Z 270DEG 27KT 4814 9752 4779 9783
$$
HOPKINSThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 10:47 PM CDT | Special Weather Statement | FGF | Pennington, Polk, Red Lake | 58 min |
| Aug 29, 9:02 PM CDT | Special Weather Statement | FGF | Nelson, Ramsey | 58 min |
Nearby
Special Weather Statements in North Dakota, 2012Every special weather statement in 2012
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.