Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 171, NWS Grand Forks, ND

August 8, 2000Hubbard County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 8, 2000, 10:54 AM CDT for Hubbard County, Minnesota. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Aug 8, 2000, 10:54 AM CDT (15:54 UTC)
Expired
Aug 8, 2000, 11:25 AM CDT
In force
31 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Hubbard County, MN

What was reported inside it

TimeReportWhereRemark
Aug 8, 10:55 AM CDTHail 0.88Laporte, MN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 3.9 hours before the alert went out and 163 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 12:00Z on 2000-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2000-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
582 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
124 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.

558 
WUUS53 KFGF 081559 COR
SVRFAR
MNC057-081625-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
1054 AM CDT TUE AUG 8 2000

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL HUBBARD COUNTY IN NORTH CENTRAL MINNESOTA...

* UNTIL 1125 AM CDT

* AT 1045 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTHWEST OF BENEDICT...OR ABOUT 21
  MILES SOUTH OF BEMIDJI...MOVEMENT WAS TO THE EAST AT 35 MPH.

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

LAT...LON 4729 9477 4711 9473 4730 9378 4751 9388

NNNN

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 Aug 8, 10:20 AM CDT, 34 minutes earlier.

Area forecast discussion, Aug 8, 10:20 AM CDT, 34 minutes before
FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
1020 AM CDT TUE AUG 8 2000

FCST CHALLENGE...SVR TSTM THREAT NW MN TDY.

SURFACE MAP SHOWS TROF BI-SECTING CWA FROM CLOSED LOW OVER WESTERN
MANITOBA. THIS TROF EXTENDS DOWN TO NEAR K8D3 WHERE TRIPLE POINT
CIRCULATION ALSO NOTED ON SURFACE MAP. WARM FRONT LOCATED FROM TIPLE
POINT TO JUST NORTH OF KSTC.

CURRENT SVR CONVECTION OVER BELTRAMI COUNTY IS CURRENTLY
ELEVATED...BUT SHOULD BECOME MORE SURFACE BASED AS IT CONTINUES TO
BUILD SOUTH INTO MOST UNSTABLE AIRMASS (-5 LIS). BEST JET DYNAMICS
ARE ALSO LOCATED ACROSS WEST CENTRAL MINNESOTA WITH 90KT JET
PUNCHING INTO THE REGION.

SVR THREAT IS EXPECTED TO CONTINUE ACROSS EASTERN PORTION OF CWA
THROUGH EARLY AFTERNOON AS SURFACE BOUNDARY MAKES ITS WAY ACROSS
REMAINDER OF CWA. CURRENT ZONES LOOK GOOD WITH MENTION OF SEVERE
OVER EASTERN COUNTIES...BUT WILL UPDATE TO TAKE OUT MORNING
WORDING.

.FGF...NONE.

BRAZZELL

In the hours before

Special weather statement, Aug 8, 6:45 AM CDT, 4 hours 9 minutes before
MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-081400-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
645 AM CDT TUE AUG 8 2000

...SEVERE THUNDERSTORMS ARE POSSIBLE IN NORTHWEST MINNESOTA TODAY...

SYNOPSIS...A SURFACE TROF WILL MOVE ACROSS THE RED RIVER VALLEY
THROUGH THE FORENOON AND MOIST SOUTHERLY FLOW WILL INCREASE ACROSS
NORTHWEST MINNESOTA AHEAD OF THIS TROF. MEANWHILE...AN UPPER LEVEL
DISTURBANCE WILL TRACK FROM CENTRAL NORTH DAKOTA INTO NORTHWEST
MINNESOTA AROUND MIDDAY. THIS COMBINATION WILL LEAD TO RAPID
THUNDERSTORM DEVELOPMENT THROUGH THE FORENOON INTO THE EARLY
AFTERNOON.

AREA OF CONCERN...ALONG AND EAST OF A FERGUS FALLS...RED LAKE FALLS
TO ROSEAU LINE.

TIME...BRIEFLY FROM 7 AM UNTIL 10 PM...AGAIN FROM NOON THROUGH 6 PM.

TYPE OF HAZARD...MAINLY LARGE HAIL THROUGH THE FORENOON...WITH LARGE
HAIL AND DAMAGIN]G WINDS IN THE AFTERNOON.

GUST

NNNN
Local storm report, Aug 8, 6:53 AM CDT, 4 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE EASTERN NORTH DAKOTA/GRAND FORKS
653 AM CDT TUE AUG 08 2000

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0340 AM    7 WNW NORTHWOOD           ND   1 INCH HAIL
08/08/00   GRAND FORKS

0415 AM    2 E NORTHWOOD             ND   .75 INCH HAIL
08/08/00   GRAND FORKS

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 9:28 AM CDTSevere Thunderstorm WarningFGFBeltrami32 min
Aug 8, 10:03 AM CDTSevere Thunderstorm WarningFGFBeltrami, Hubbard32 min
Aug 8, 3:02 PM CDTSevere Thunderstorm WarningFGFBeltrami28 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2000Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.