Alert archive / Minnesota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 278, NWS Twin Cities, MN

July 15, 1998Freeborn County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 15, 1998, 12:43 AM CDT for Freeborn County, Minnesota. It was in force for 47 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 15, 1998, 12:43 AM CDT (05:43 UTC)
Expired
Jul 15, 1998, 1:30 AM CDT
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Freeborn County, MN

The radar

The Minneapolis radar (KMPX), 132 km from the middle of the area, began a volume at 05:43 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

Minneapolis, MN (KMPX), launched 00:00Z, 5.7 hours before the alert went out and 132 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, Minneapolis, MN at 00:00Z on 1998-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2121 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, Minneapolis, MN at 00:00Z on 1998-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.193958Sfc1 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
2121 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1376 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 150543 RRA
SVRMSP
MNC047-150630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1243 AM CDT WED JUL 15 1998

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 130 AM CDT

* AT 1241 AM CDT...DOPPLER RADAR INDICATED THE LEADING EDGE OF A
  SEVERE STORM 5 TO 10 MILES NORTHWEST OF ALBERT LEA.  THE STORM WAS
  MOVING SOUTHEAST AT 30 MPH.  TREES WERE DOWNED AT 1230 AM IN
  MINNESOTA LAKE FROM THE STORMS.

* SOME LOCATIONS AFFECTED
    ALBERT LEA
    ALDEN
    CONGER
    TWIN LAKES
    EMMONS

THIS IS A DANGEROUS STORM...WITH DAMAGING WINDS.  STAY INDOORS
AWAY FROM WINDOWS.

TDK


&

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.

In the hours before

Special weather statement, Jul 14, 10:30 PM CDT, 2 hours 13 minutes before
MNZ049>051-044-045-150430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1030 PM CDT TUE JUL 14 1998

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELED ACROSS THE CENTRAL
MINNESOTA COUNTIES OF STEARNS...SHERBURNE...BENTON...MILLE LACS AND
KANABEC.

THE TWIN CITIES DOPPLER RADAR INDICATES THE THREAT OF DAMAGING
WEATHER HAS MOVES SOUTH OF THESE COUNTIES.
 WH
Special weather statement, Jul 14, 10:30 PM CDT, 2 hours 13 minutes before
MNZ049>051-044-045-150430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1030 PM CDT TUE JUL 14 1998

THE SEVERE THUNDERSTORM WATCH HAS BEEN CANCELED ACROSS THE CENTRAL
MINNESOTA COUNTIES OF STEARNS...SHERBURNE...BENTON...MILLE LACS AND
KANABEC.

THE TWIN CITIES DOPPLER RADAR INDICATES THE THREAT OF DAMAGING
WEATHER HAS MOVES SOUTH OF THESE COUNTIES.
 WH
Special weather statement, Jul 14, 11:40 PM CDT, 1 hour 3 minutes before
MNZ052-068-073-WIZ014-150600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1140 PM CDT TUE JUL 14 1998

THE STORM PREDICTION CENTER HAS CANCELLED SEVERE THUNDERSTORM
WATCH NUMBER 744 FOR MUCH OF CENTRAL MINNESOTA AND A SMALL PORTION
OF WEST CENTRAL WISCONSIN. IN MINNESOTA...THE SEVERE THUNDERSTORM
WATCH HAS BEEN CANCELLED NORTH OF A LINE FROM REDWOOD FALLS TO
GAYLORD TO MINNEAPOLIS AND ST PAUL TO STILLWATER.  IN WISCONSIN THE
SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR POLK
COUNTY.
 WH
Special weather statement, Jul 14, 11:40 PM CDT, 1 hour 3 minutes before
MNZ052-068-073-WIZ014-150600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1140 PM CDT TUE JUL 14 1998

THE STORM PREDICTION CENTER HAS CANCELLED SEVERE THUNDERSTORM
WATCH NUMBER 744 FOR MUCH OF CENTRAL MINNESOTA AND A SMALL PORTION
OF WEST CENTRAL WISCONSIN. IN MINNESOTA...THE SEVERE THUNDERSTORM
WATCH HAS BEEN CANCELLED NORTH OF A LINE FROM REDWOOD FALLS TO
GAYLORD TO MINNEAPOLIS AND ST PAUL TO STILLWATER.  IN WISCONSIN THE
SEVERE THUNDERSTORM WATCH HAS BEEN CANCELLED FOR POLK
COUNTY.
 WH
Local storm report, Jul 15, 12:17 AM CDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MINNESOTA
1217 AM CDT WED JUL 15 1998

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

0545 PM    LONG PRAIRIE              MN   WIND DAMAGE
07/14/98   TODD                           TREES DOWNED JUST WEST OF
                                          LONG PRAIRIE

0547 PM    BELLE PRAIRIE             MN   WIND DAMAGE
07/14/98   MORRISON                       LARGE TREE LIMBS DOWNED

0625 PM    MELBY                     MN   1 INCH HAIL
07/14/98   DOUGLAS

0914 PM    BLOMKEST                  MN   TORNADO
07/14/98   KANDIYOHI                      BRIEF TOUCHDOWN

0928 PM    MONTEVIDEO                MN   WIND DAMAGE
07/14/98   CHIPPEWA                       MANY BRANCHES DOWNED AND
                                          POWER OUTAGES

1000 PM    CLARKFIELD                MN   WIND DAMAGE
07/14/98   YELLOW MEDICINE                60 TO 70 MPH GUSTS

1001 PM    GRANITE FALLS             MN   WIND DAMAGE
07/14/98   CHIPPEWA                       TREES AND POWER LINES
                                          DOWNED

1010 PM    ECHO                      MN   .75 INCH HAIL
07/14/98   YELLOW MEDICINE

1120 PM    COMFREY               p    MN   WIND DAMAGE
07/14/98   BROWN                          LARGE TREES AND LIMBS
                                          DOWNED
Local storm report, Jul 15, 12:17 AM CDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MINNESOTA
1217 AM CDT WED JUL 15 1998

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

0545 PM    LONG PRAIRIE              MN   WIND DAMAGE
07/14/98   TODD                           TREES DOWNED JUST WEST OF
                                          LONG PRAIRIE

0547 PM    BELLE PRAIRIE             MN   WIND DAMAGE
07/14/98   MORRISON                       LARGE TREE LIMBS DOWNED

0625 PM    MELBY                     MN   1 INCH HAIL
07/14/98   DOUGLAS

0914 PM    BLOMKEST                  MN   TORNADO
07/14/98   KANDIYOHI                      BRIEF TOUCHDOWN

0928 PM    MONTEVIDEO                MN   WIND DAMAGE
07/14/98   CHIPPEWA                       MANY BRANCHES DOWNED AND
                                          POWER OUTAGES

1000 PM    CLARKFIELD                MN   WIND DAMAGE
07/14/98   YELLOW MEDICINE                60 TO 70 MPH GUSTS

1001 PM    GRANITE FALLS             MN   WIND DAMAGE
07/14/98   CHIPPEWA                       TREES AND POWER LINES
                                          DOWNED

1010 PM    ECHO                      MN   .75 INCH HAIL
07/14/98   YELLOW MEDICINE

1120 PM    COMFREY               p    MN   WIND DAMAGE
07/14/98   BROWN                          LARGE TREES AND LIMBS
                                          DOWNED

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 7:05 PM CDTSevere Thunderstorm WarningMPXMorrison, Stearns, Todd60 min
Jul 14, 7:09 PM CDTSevere Thunderstorm WarningMPXDouglas31 min
Jul 14, 7:39 PM CDTSevere Thunderstorm WarningMPXStevens61 min
Jul 14, 8:05 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Pope, Stearns, Swift60 min
Jul 14, 8:29 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle61 min
Jul 14, 8:47 PM CDTSevere Thunderstorm WarningMPXKandiyohi48 min
Jul 14, 9:26 PM CDTTornado WarningMPXKandiyohi, Renville34 min
Jul 14, 9:53 PM CDTSevere Thunderstorm WarningMPXAnoka, Hennepin62 min
Jul 14, 10:01 PM CDTSevere Thunderstorm WarningMPXRedwood, Renville, Yellow Medicine64 min
Jul 14, 10:20 PM CDTSevere Thunderstorm WarningMPXCarver, Dakota, Scott60 min
Jul 14, 10:20 PM CDTSevere Thunderstorm WarningMPXRamsey, Washington60 min
Jul 14, 10:54 PM CDTSevere Thunderstorm WarningMPXBrown61 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1998Every severe thunderstorm warning in 1998

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.