Heat in Minnesota, August 4 to 5, 2001

Name: Heat in Minnesota, August 4 to 5, 2001
Start: 2001-08-04T13:00
End: 2001-08-05T06:00
Location: Minnesota

August 4 to 5, 2001 · NWS FGF · 8 events in 8 counties and zones

Heat indices rose to around 115 degrees, with temperatures in the 90s and dew points in the 70s.

Where it happened

Every event with a place to put it; 8 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 8

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS FGF wrote it up.

Heat indices rose to around 115 degrees, with temperatures in the 90s and dew points in the 70s.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Aug 4, 9:25 AM CST, 3 hours 35 minutes earlier.

Area forecast discussion, Aug 4, 9:25 AM CST, 3 hours 35 minutes before

FORECAST DISCUSSION FOR EASTERN NORTH DAKOTA AND NORTHWEST MINNESOTA
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1025 AM CDT SAT AUG 4 2001

...HEAT ADVISORY CONTINUES THIS AFTERNOON AND TONIGHT...

FCST CHALLENGE...EXCESSIVE HEAT AND HUMITY...WITH SOME TSRA THREAT
ALG CANADIAN BDR LATE.

ANALYSIS/NEAR TERM...FOG/STRATUS BANK OVER THE MN LAKE COUNTRY
CONTINUES TO DISSIPATE AS DAYTIME TEMPS RISE. STRATUS IN SERN ND
SHOULD THIN BUT EXPECT SCT LOW LVL CLDS PERSISTING THROUGH THE DAY
AS DEEP LAYER MOISTURE CONTINUES TO POOL. SFC TO 700MB WINDS AND
MOISTURE WERE CONVERGING THIS AM INTO NWRN ND...SERN SASK AND SWRN
MAN. THE FGF CWFA IS SQUARELY UNDER A 12-14C 700MB CAP THIS AM AND
IS LIKLEY TO REMAIN CAPPED THROUGH THE AFTERNOON. EXCESSIVE HEAT AND
HUMIDITY UNDER THE CAP WILL DRIVE HEAT STRESS INDICES INTO THE
105-112 DEGREE RANGE THROUGH THE AFTERNOON AND EVENING...WITH HEAT
STRESS INDICES DROPPING BELOW 80 DEGREES EARLY SUNDAY MORNING. WILL
UPDATE HEAT ADVISORY TO CONTINUE THROUGH THE OVERNIGHT HOURS TNGT.

EVENING AND OVERNIGHT...12Z MESOETA IS KEYING ON DEEP MOISTURE
CONVERGENCE INTO SWRN MAN THIS AFTERNOON AND DEVELOPING DEEP
CONVECTION FM 18-21Z FM DAUHIN TO SWAN LAKE MAN. HAVE COORD WITH
PSPC IN WINNIPEG ON POTENTIAL FOR MESOSCALE CONVECTIVE SYSTEM (MCS)
DEVELOPMENT FM DAUPHIN INTO LAKE MANITOBA FM LATE AFTERNOON INTO
EARLY EVENING. BOW ECHO FORMATION IS POSSIBLE WITH THIS SYSTEM AS
DEEP LAYER SHEER APPROACHES 40KTS FM CYDN TO CYWG AROUN 00Z. MESOETA
SUGGESTS BOW ECHO PROPAGATION EWD INTO WRN ONT AND SWD TO NEAR THE
CAN/AM BDR AROUND MIDNIGHT. EXPECT SCT TSTM ACTIVITY TO PROPAGATE
INTO NERN ND AND NRN MN THROUGH THE OVERNIGHT HOURS...WITH SLIGHT
RISK OF DAMAGING WINDS AND HEAVY RAIN NORTH OF A LINE FROM DEVILS
LAKE ND TO ROSEAU MN.

.FGF...HEAT ADVISORY THIS AFTERNOON AND TONIGHT.

GUST

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

8 heat. Local standard time, as filed.

Heat, Kittson

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: Kittson forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 48.777, -96.783 (the zone’s center; the record gives no point)

Heat, Roseau

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: Roseau forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 48.775, -95.811 (the zone’s center; the record gives no point)

Heat, Lake of the Woods

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: Lake of the Woods forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 48.771, -94.905 (the zone’s center; the record gives no point)

Heat, West Marshall

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: West Marshall forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 48.358, -96.368 (the zone’s center; the record gives no point)

Heat, East Marshall

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: East Marshall forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 48.358, -96.368 (the zone’s center; the record gives no point)

Heat, North Beltrami

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: North Beltrami forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 47.974, -94.938 (the zone’s center; the record gives no point)

Heat, West Polk

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: West Polk forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 47.774, -96.402 (the zone’s center; the record gives no point)

Heat, Pennington

When: August 4, 1:00 PM CST to August 5, 6:00 AM CST
Where: Pennington forecast zone
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 48.066, -96.037 (the zone’s center; the record gives no point)

What these are

Heat: Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Minnesota in 2001 Every state in 2001 This day in weather history Warnings in Minnesota, August 2001

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5265205, 5265206, 5265207, 5265208, 5265209, 5265210, 5265211, 5265212.