Alert archive / Minnesota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 108, NWS Grand Forks, ND

July 6, 2003Red Lake County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 6, 2003, 4:20 AM CDT for Red Lake County, Minnesota. It was in force for 40 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
Jul 6, 2003, 4:20 AM CDT (09:20 UTC)
Expired
Jul 6, 2003, 5:00 AM CDT
In force
40 min
Issued by
NWS Grand Forks, ND
Area
Counties, with a storm outline in the text

County Red Lake County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 90 km from the middle of the area, began a volume at 09:22 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 9.3 hours before the alert went out and 232 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.

Skew-T log-pSkew-T log-p diagram, International Fa, MN at 00:00Z on 2003-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 00:00Z on 2003-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
84 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1692 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KFGF 060920
SVRFGF
MNC125-061000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
419 AM CDT SUN JUL 6 2003

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  WESTERN RED LAKE COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 500 AM CDT.

* AT 416 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR HUOT...OR ABOUT 21 MILES SOUTHWEST OF     
  THIEF RIVER FALLS...MOVEMENT WAS TO THE EAST AT 30 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  RED LAKE FALLS AT 425 AM AND
  PLUMMER AT 450 AM.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

LAT...LON 4795 9646 4786 9646 4783 9602 4794 9594

$$
54

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 6, 3:30 AM CDT, 50 minutes earlier.

Area forecast discussion, Jul 6, 3:30 AM CDT, 50 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
330 AM CDT SUN JUL 6 2003

.SHORT TERM...
ETA AND GFS SIMILAR WITH SURFACE PATTERN AND UPPER AIR PATTERN
HOWEVER ETA IS SLIGHTLY FARTHER SOUTH. HOWEVER PREFER GFS AS IT
HANDLES CURRENT CONVECTIVE ACTIVITY. WATER VAPOR LOOP SHOWS UPPER
LEVEL LOW OVER SOUTHEAST ALBERTA IN REASONABLE AGREEMENT WITH
MODELS. WATER VAPOR LOOP ALSO SHOWING LAST OF A SERIES OF SHORT
WAVES ALONG SOUTH DAKOTA/NEBRASKA BORDER MOVING EAST WITH DOWNSTREAM
CONVECTION OVER NE/IA. WITH NO ADDITIONAL CONVECTION ROBBING DEEP
MOISTURE MOVING NORTHWARD AND WITH APPROACHING ALBERTA UPPER LEVEL
TROUGH AND UPPER JET, EXPECT HIGH 850 HPA THETA-E AIR TO ADVECT
NORTH TODAY. PREFER THE SLOWER GFS TO BRING IN MORE STABLE AIR LATER
TONIGHT. COLD FRONT IN WESTERN ND WILL MOVE INTO THE REGION THIS
AFTERNOON AND EVENING. PRECIPITABLE WATERS RISE TO AN INCH AND A
HALF IN THE SOUTHEAST ZONES THIS AFTERNOON. ETA MODEL SOUNDINGS
SHOWING LOW LEVELS WARMING EARLY THIS MORNING AND IMPLIED
CONVERGENCE WITH LOW LEVEL EAST WINDS FORECAST TO BECOME WESTERLY BY
12Z. THEN LOWER TROPOSHERE COOLS THE REST OF THE DAY AS LOW LEVEL
FLOW BACKS. COOLING CONTINUES SUNDAY NIGHT THEN SHIFTS TO LOWER
LEVELS (CENTERED AROUND 850 HPA) FOR MONDAY.

.LONG TERM...
NO CHANGES.

.FGF...NONE

HOPPES
Hazardous weather outlook, Jul 5, 7:14 AM CDT, 21 hours 6 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-051400-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
714 AM CDT SAT JUL 5 2003

...ISOLATED SEVERE THUNDERSTORMS ARE EXPECTED LATE TONIGHT...
...SEVERE THUNDERSTORMS ARE EXPECTED FOR SUNDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN NORTH DAKOTA...WEST
CENTRAL AND NORTHWEST MINNESOTA.

.DAY ONE...LATE EVENING AND OVERNIGHT

ISOLATED SEVERE STORMS ARE EXPECTED LATE SATURDAY NIGHT AND EARLY
SUNDAY MORNING FOR ALL OF EASTERN NORTH DAKOTA AND NORTHWEST AND
WEST CENTRAL MINNESOTA. THE THUNDERSTORMS CAN BE EXPECTED AFTER 11
PM THIS EVENING THROUGH 6 AM SUNDAY MORNING. THE THUNDERSTORMS WILL
MOST LIKELY PRODUCE SOME LARGE HAIL AND DAMAGING WINDS.

WARM MOIST AIR WILL MOVE NORTH INTO THE RED RIVER VALLEY TONIGHT AND
DESTABILIZE THE ATMOSPHERE.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SEVERE THUNDERSTORMS WILL BE MORE LIKELY ON SUNDAY WITH LARGE HAIL
AND DAMAGING WINDS. THE SEVERE WEATHER IS EXPECTED OVER THE
SOUTHEAST NORTH DAKOTA AND NORTHWEST AND WEST CENTRAL MINNESOTA OR
SOUTH OF A LINE FROM VALLEY CITY TO MAYVILLE  NORTH DAKOTA TO
BAUDETTE MINNESOTA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

HOPPES

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 3:45 AM CDTSevere Thunderstorm WarningFGFPolk45 min
Jul 6, 1:29 PM CDTSevere Thunderstorm WarningFGFLake of the Woods, Roseau46 min
Jul 6, 2:15 PM CDTSevere Thunderstorm WarningFGFLake of the Woods30 min
Jul 6, 3:14 PM CDTSevere Thunderstorm WarningFGFLake of the Woods31 min
Jul 6, 4:55 PM CDTSevere Thunderstorm WarningFGFBeltrami65 min
Jul 6, 5:09 PM CDTSevere Thunderstorm WarningFGFClearwater66 min
Jul 6, 5:15 PM CDTTornado WarningFGFBeltrami45 min
Jul 6, 5:58 PM CDTSevere Thunderstorm WarningFGFBeltrami, Hubbard62 min
Jul 6, 6:50 PM CDTSevere Thunderstorm WarningFGFOtter Tail40 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2003Every severe thunderstorm warning in 2003

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.