Alert archive / Minnesota / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 48, NWS Duluth, MN

August 8, 2000Carlton County, Saint Louis County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Aug 8, 2000, 1:49 PM CDT for Carlton County, Saint Louis County, Minnesota. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 8, 2000, 1:49 PM CDT (18:49 UTC)
Expired: Aug 8, 2000, 2:30 PM CDT
In force: 41 min
Issued by: NWS Duluth, MN
Area: Whole counties

Counties Carlton County, MN, Saint Louis County, MN

What was reported inside it

Time	Report	Where	Remark
Aug 8, 2:28 PM CDT	Hail 0.75	Cloquet, 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, 6.8 hours before the alert went out and 173 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 8, 1:30 PM CDT, 19 minutes earlier.

Area forecast discussion, Aug 8, 1:30 PM CDT, 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DULUTH MN
130 PM CDT TUE AUG 8 2000

THE OBVIOUS PROBLEM OF THE DAY IS LINE OF NEAR-SVR TSTMS CURRENTLY
OVR CWA. SFC PLOTS STILL A LTL DATA-SPARSE...SO MSAS MAY BE
SUSPECT...BUT DPTS APPEAR TO BE IN THE LOW-MID 60S WITH UPR 60S JUST
UPSTREAM. AXIS OF -8 SFC LI/S LIKEWISE JUST BEHIND SFC TROF WHERE
SUNSHINE IS MUCH STRONGER. CLD CVR JUST AHD OF TROF LIMITING SFC HTG
SOMEWHAT...SO INITIALLY COOL BLYR IS STILL SUPPRESSING CNVCTV ACTVTY
TO BLO SVR LIMITS FOR THE MOST PART...EXCEPT FOR XTRM SRN END OF
LINE BTWN GPZ AND BRD. MAY STILL SEE SOME WRNGS FOR S/C ZONES YET
THIS AFTN. AS FOR THE FUTURE...MODELS STILL NOT ALL IN YET AFTR
GATEWAY PROB...BUT ALL SEEM TO HAVE INITIALIZED WELL AND ARE SHOWING
SIMILAR MVMT OF SYS TO THE E. PREFER ETA/S SLIGHTLY FASTER MVMT IN
VIEW OF 95 KT VORT MAX PASSING ACRS SRN MN TNGT. AMS OVR OUR CWA
STABILIZES RAPIDLY AFT 06Z AS S/WV AND VORT MAX PUSH ON TO THE EAST
AND SFC HTG ENDS. DEPENDING ON EXACT PICTURE JUST BEFORE ZFP
TRANSMIT TIME...WILL PRBLY DROP MENTION OF EVENING TSTMS/PCPN IN WRN
ZONE GROUPS...KEEP THEM FOR EVENING IN CENTRAL ZONES...AND THROUGH
THE NIGHT FOR ERN WI ZONES. FWC ONLY MOS DATA AVAIL ATTM...BUT
APPEARS ACCEPTABLE...SHOWING WARMING TREND NXT COUPLE DAYS WITH LESS
CLD CVR OVERCOMING WK CAA AHD OF APPROACHING SFC HIGH.

.DLH...NONE.

ERF

In the hours before

Special weather statement, Aug 8, 9:05 AM CDT, 4 hours 44 minutes before

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-082000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DULUTH MN
905 AM CDT TUE AUG 8 2000

...SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING...

THREAT...
LARGE HAIL...DAMAGING WINDS.

DISCUSSION...
MOIST UNSTABLE AIR WILL COMBINE WITH SURFACE HEATING TO PRODUCE
ISOLATED SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. THE MOST
LIKELY AREAS FOR SEVERE THUNDVERSTORM DEVELOPMENT WILL BE SOUTH OF A
LINE FROM WALKER TO DULUTH/SUPERIOR...INCLUDING NORTHWESTERN
WISCONSIN.

SPOTTER ACTIVATION...
SEVERE WEATHER SPOTTER ACTIVATION MAY BE NEEDED BY EARLY AFTERNOON.

ERF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 1:01 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin	29 min
Aug 8, 5:02 PM CDT	Severe Thunderstorm Warning	DLH	Pine	43 min
Aug 8, 5:18 PM CDT	Tornado Warning	DLH	Pine	42 min
Aug 8, 5:34 PM CDT	Severe Thunderstorm Warning	DLH	Pine	56 min
Aug 8, 5:54 PM CDT	Severe Thunderstorm Warning	DLH	Itasca	36 min
Aug 8, 6:55 PM CDT	Severe Thunderstorm Warning	DLH	Cass	65 min
Aug 8, 3:52 PM CDT	Severe Thunderstorm Warning	DLH	Sawyer, Washburn	38 min
Aug 8, 6:17 PM CDT	Severe Thunderstorm Warning	DLH	Burnett	43 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2000 Every 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.