Alert archive / Minnesota / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 140, NWS Grand Forks, ND

July 27, 2010Grant County, Otter Tail County, Wilkin County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 27, 2010, 6:29 AM CDT for Grant County, Otter Tail County, Wilkin County, Minnesota. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 27, 2010, 6:29 AM CDT (11:29 UTC)
Expired: Jul 27, 2010, 7:30 AM CDT
In force: 61 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Grant County, MN, Otter Tail County, MN, Wilkin County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 173 km from the middle of the area, began a volume at 11:30 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.

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 27, 1:24 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Forks, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 27, 2:30 AM CDT, 3 hours 59 minutes earlier.

Area forecast discussion, Jul 27, 2:30 AM CDT, 3 hours 59 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GRAND FORKS ND
230 AM CDT TUE JUL 27 2010

.DISCUSSION...FORECAST CHALLENGE CONCERNS NEAR TERM HEAVY RAIN
THREAT AND RAIN CHANCES REMAINDER OF DAY. MODELS CONTINUE IN PRETTY
GOOD AGREEMENT THROUGH PERIOD AND WILL USE BLEND FOR FORECAST.

FIRST CONCERN WILL BE EARLY MORNING HEAVY RAIN THREAT AND FLASH
FLOOD HEADLINES. BOTH NAM AND GFS LINING UP WELL WITH LATEST
SUBJECTIVE ANALYSIS IN HOLDING E-W ORIENTED BOUNDARY NORTH OF
INTERNATIONAL BORDER DURING EARLY MORNING HOURS. ASSOCIATED BAND OF
STRONGER CONVECTION CONTINUES TO PROPAGATE DUE EAST ACROSS SOUTHERN
CANADA SO HEAVY RAIN THREAT LOOKS TO REMAIN NORTH OF BORDER AND
WILL LIKELY BE ABLE TO CANCEL FLASH FLOOD WATCH. OTHERWISE WILL BE
MONITORING ONGOING CONVECTION WITH MAIN AREA OF CONCERN. FAVORED
AREA FOR CONTINUED CONVECTION DURING AM WILL BE ALONG I94 CORRIDOR
ALONG INSTABILITY AXIS AND NOSE OF LOW LEVEL JET. FOR REMAINDER OF
DAY CONVECTIVE POTENTIAL WILL BE ALONG AND AHEAD COLD FRONT DROPPING
THROUGH FA. FAVORED LOCATION FOR STRONG CONVECTION LOOKS TO BE SE FA
BASED ON BOUNDARY LOCATION.

DRY AND COOLER CONDITIONS EXPECTED WEDNESDAY AS HIGH PRESSURE BUILDS
IN.

NEXT WAVE TO AFFECT FA THURSDAY NIGHT/FRIDAY AS WEAK WAVE DROPS
THROUGH NW MID LEVEL FLOW. SOMEWHAT UNSETTLED WEATHER MAY CONTINUE
INTO THE WEEKEND AS WEEK IMPULSES CONTINUE TO DROP THROUGH NW FLOW.
TIMING THE MAIN ISSUE SO WILL MAINTAIN LOW END POPS THROUGH
MID/LONGER RANGE.

&&

.AVIATION...
PRIMARY THREAT WITH ONGOING CONVECTION THIS AM IS STRONG WINDS
MAINLY ALONG AND SOUTH OF INTERSTATE 94. OTHERWISE PRIMARILY VFR
CONDITIONS WITH SOME MVFR CIGS/VSBY IN STRONGER STORMS.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...NONE.

MN...NONE.

&&

VOELKER

In the hours before

Local storm report, Jul 27, 1:41 AM CDT, 4 hours 48 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
141 AM CDT TUE JUL 27 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0135 AM     TORNADO          REILE'S ACRES           46.92N 96.86W
07/27/2010                   CASS               ND   LAW ENFORCEMENT

            TOUCHDOWN REPORTED NEAR REILES ACRES. MULTIPLE FUNNELS
            VIEWED BY SPOTTER LOCATED NORTH OF WEST FARGO.

&&

GGUST

Local storm report, Jul 27, 1:43 AM CDT, 4 hours 46 minutes before

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Local storm report, Jul 27, 2:03 AM CDT, 4 hours 26 minutes before

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Local storm report, Jul 27, 4:57 AM CDT, 1 hour 32 minutes before

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Special weather statement, Jul 27, 5:55 AM CDT, 34 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
555 AM CDT TUE JUL 27 2010

NDZ038-039-049-271145-
BARNES ND-CASS ND-RANSOM ND-
555 AM CDT TUE JUL 27 2010

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CASS...EASTERN
BARNES AND EXTREME NORTHWESTERN RANSOM COUNTIES IN SOUTHEAST NORTH
DAKOTA UNTIL 645 AM CDT...

AT 553 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
THUNDERSTORM NEAR VALLEY CITY...MOVING TO THE EAST AT 50 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND 50 MPH WINDS ARE EXPECTED
WITH THE STORM.

THE STORM WILL BE NEAR...
ORISKA...NOME AND FINGAL AROUND 605 AM CDT.
TOWER CITY AND LUCCA AROUND 610 AM CDT.

FOR MOTORISTS ON INTERSTATE 94...THE STORM WILL BE BETWEEN...MILE
MARKER 292 AROUND 555 AM CDT...AND MILE MARKER 312 AROUND 615 AM
CDT...

BE PREPARED TO TAKE SHELTER IF THE STORMS INTENSIFY AND BECOME
SEVERE...OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE.

VOELKER

Local storm report, Jul 27, 6:13 AM CDT, 16 minutes before

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The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 26, 11:08 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall, Roseau	67 min
Jul 27, 12:44 AM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman, Polk	61 min
Jul 27, 1:05 AM CDT	Tornado Warning	FGF	Clay	55 min
Jul 27, 1:43 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Clearwater, Mahnomen, Norman, Otter Tail and 1 more	62 min
Jul 27, 1:49 AM CDT	Tornado Warning	FGF	Becker, Clay, Otter Tail	56 min
Jul 27, 2:38 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Hubbard, Otter Tail, Wadena, Wilkin	67 min
Jul 27, 4:34 AM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman	56 min
Jul 27, 5:06 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Clearwater, Mahnomen, Norman, Otter Tail and 1 more	54 min
Jul 27, 5:32 AM CDT	Severe Thunderstorm Warning	FGF	Otter Tail, Wilkin	58 min
Jul 27, 5:58 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Hubbard, Otter Tail, Wadena, Wilkin	62 min
Jul 27, 6:59 AM CDT	Severe Thunderstorm Warning	FGF	Hubbard, Otter Tail, Wadena	31 min
Jul 27, 9:53 AM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	52 min
Jul 27, 10:08 AM CDT	River Flood Warning	FGF	Clay	35 hr
Jul 27, 10:09 AM CDT	Tornado Warning	FGF	Otter Tail, Wadena	51 min
Jul 27, 11:41 AM CDT	Areal Flood Advisory	FGF	Becker, Clay, Otter Tail, Wilkin	119 min
Jul 27, 1:15 PM CDT	Tornado Warning	FGF	Wadena	19 min
Jul 27, 1:31 PM CDT	Flash Flood Warning	FGF	Becker, Clay, Otter Tail, Wadena, Wilkin	8 hr
Jul 27, 4:02 PM CDT	Tornado Warning	FGF	Grant, Otter Tail	48 min
Jul 26, 8:17 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	58 min
Jul 26, 8:55 PM CDT	Tornado Warning	FGF	Cavalier, Towner	65 min
Jul 26, 9:10 PM CDT	Areal Flood Advisory	FGF	Benson, Cavalier, Ramsey, Towner	6 hr
Jul 26, 9:13 PM CDT	Tornado Warning	FGF	Ramsey	62 min
Jul 26, 9:47 PM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Grand Forks, Pembina, Ramsey, Walsh	58 min
Jul 26, 10:00 PM CDT	Tornado Warning	FGF	Benson, Eddy	60 min
Jul 26, 10:14 PM CDT	Tornado Warning	FGF	Benson	18 min
Jul 26, 11:20 PM CDT	Severe Thunderstorm Warning	FGF	Eddy, Griggs, Nelson	55 min
Jul 27, 12:07 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele, Traill	53 min
Jul 27, 12:30 AM CDT	Tornado Warning	FGF	Barnes, Cass	60 min
Jul 27, 3:41 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	64 min
Jul 27, 2:54 PM CDT	Tornado Warning	FGF	Ransom, Richland, Sargent	51 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.