Alert archive / Minnesota / Severe Thunderstorm Watches in 2000
Severe Thunderstorm Watch 682
The Storm Prediction Center issued this severe thunderstorm watch at Aug 12, 2000, 3:15 AM CDT for 6 counties in Minnesota. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 12, 2000, 3:15 AM CDT (08:15 UTC)
- Expired
- Aug 12, 2000, 7:00 AM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
Counties Beltrami County, MN, Clearwater County, MN, Itasca County, MN, Koochiching County, MN, Mahnomen County, MN, Norman County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 207 km from the middle of the area, began a volume at 08:14 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
International Fa, MN (KINL), launched 00:00Z, 8.3 hours before the alert went out and 127 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
- 128 J/kg
- Mixed-layer CIN
- -331 J/kg
- Mixed-layer LCL
- 1778 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 194 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
453 WWUS9 KMKC 120745 SEL2 SEL2 MKC WW 120741 MNZ000-121200- URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 682 STORM PREDICTION CENTER NORMAN OK 241 AM CDT SAT AUG 12 2000 THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN MINNESOTA EFFECTIVE THIS SATURDAY MORNING FROM 315 AM UNTIL 700 AM CDT. HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES SOUTH SOUTHWEST OF BEMIDJI MINNESOTA TO 20 MILES EAST NORTHEAST OF INTERNATIONAL FALLS MINNESOTA. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 681... DISCUSSION...WELL ORGANIZED BOW ECHO MOVING RAPIDLY/27050/ EWD ACROSS NWRN MN. STRONG LOW LEVEL JET PROVIDING VERY MOIST UNSTABLE AIRMASS TO MAINTAIN STRENGTH OF BOW ECHO FOR A FEW MORE HOURS. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1 INCH EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 26045. ...HALES 484,0911 471,0932 471,0964 484,0944
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Kittson, Lake of the Woods, Marshall, Pennington, Polk, Red Lake and 1 more | 5 hr |
| Aug 12, 4:00 PM CDT | Tornado Watch | SPC | Anoka, Blue Earth, Brown, Carver, Chippewa, Cottonwood and 37 more | 6 hr |
Nearby
Severe Thunderstorm Watches in Minnesota, 2000Every severe thunderstorm watch in 2000
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.