Heat in Missouri, August 1 to 2, 2001

Name: Heat in Missouri, August 1 to 2, 2001
Start: 2001-08-01T00:00
End: 2001-08-02T21:00
Location: Missouri

August 1 to 2, 2001 · NWS LSX · 29 events in 29 counties and zones

The high temperatures from late July continued into the first 2 days of August. High temperatures were in the middle to upper 90s with the Heat Index around 105.

Where it happened

Every event with a place to put it; 29 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: 34
Property damage: None recorded
Crop damage: None recorded
Events: 29

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 LSX wrote it up.

The high temperatures from late July continued into the first 2 days of August. High temperatures were in the middle to upper 90s with the Heat Index around 105.

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 St. Louis, MO wrote its last area forecast discussion before the first event at Jul 31, 2:10 PM CST, 9 hours 50 minutes earlier.

Area forecast discussion, Jul 31, 2:10 PM CST, 9 hours 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
3300 PM CDT TUE JUL 31 2001

UNUSUALLY SHARP UPPER RDG EXTENDS FM 90 DEG W NWD INTO CNTRL CANADA
WITH DP TROF OVR WRN STATES. GOOD ENERGY ROTATING NEWD TWD TOP OF
RDG WILL CHANGE ORIENTATION FM N/S TO E/W THEN SHIFT IT SLGTLY WWD
FRI INTO WRN KS/CO AS ENERGY DROPS DOWN FRONT SIDE INTO E COAST
TROF. THIS WILL KICK DP SFC LOW NEWD OUT OF DAKOTAS INTO HUDSON BAY
AREA AND DISSIPATE STG GRAD THAT CURRENTLY EXISTS TO W OF CWA. WK
HIGH FOLLOWS S/W OVR TOP OF RDG FM DAKOTAS INTO GRT LAKES. THIS
ALLOWS WK FRONT TO SETTLE INTO IOWA/N MO BORDER AND DISSIPATE DURG
WEEKEND AS HI BUILDS AGAIN. HWVR IN THE MEANTIME ALL MODELS INCR
HUMIDITIES ALG IA BORDER AND CREATE NOCTURNAL MCSS FURTHER NORTH.
THICKNESSES SUPPORT SEWD OR SWD DRIFT OF MCSS SHOULD THEY OCCUR.
THIS MAY BRING LATE NIGHT PCPN TO NRN COUNTIES OR AT LEAST A DENSE
CIRRUS SHIELD. WITH THIS IN MIND THIS SHOULD LOWER NRN ZONES BELOW
HEAT ADVISORY THRESHOLDS BY THURSDAY ONE WAY OR ANOTHER. NOT SURE IT
CAN SAVE THE REST OF THE CWA HOWEVER SO HAVE EXTENDED THE EXCESSIVE
HEAT WARNING THROUGH THURSDAY FOR ALL BUT NRN COUNTIES.

.STL...EXCESSIVE HEAT WARNING IN EFFECT THRU WED FOR THE ENTIRE CWA,
AND THROUGH THURSDAY FOR ALL BUT NORTHERN COUNTIES INCLUDING THE
HANNIBAL/QUINCY/KAHOKA AREAS.

PEDIGO

@RUKWBCeKDENFXUS63 KLSX 312010 CCA
AFDSTL

AREA FORECAST DISCUSSION...CORRECTED TIME
NATIONAL WEATHER SERVICE ST LOUIS MO
300 PM CDT TUE JUL 31 2001

UNUSUALLY SHARP UPPER RDG EXTENDS FM 90 DEG W NWD INTO CNTRL CANADA
WITH DP TROF OVR WRN STATES. GOOD ENERGY ROTATING NEWD TWD TOP OF
RDG WILL CHANGE ORIENTATION FM N/S TO E/W THEN SHIFT IT SLGTLY WWD
FRI INTO WRN KS/CO AS ENERGY DROPS DOWN FRONT SIDE INTO E COAST
TROF. THIS WILL KICK DP SFC LOW NEWD OUT OF DAKOTAS INTO HUDSON BAY
AREA AND DISSIPATE STG GRAD THAT CURRENTLY EXISTS TO W OF CWA. WK
HIGH FOLLOWS S/W OVR TOP OF RDG FM DAKOTAS INTO GRT LAKES. THIS
ALLOWS WK FRONT TO SETTLE INTO IOWA/N MO BORDER AND DISSIPATE DURG
WEEKEND AS HI BUILDS AGAIN. HWVR IN THE MEANTIME ALL MODELS INCR
HUMIDITIES ALG IA BORDER AND CREATE NOCTURNAL MCSS FURTHER NORTH.
THICKNESSES SUPPORT SEWD OR SWD DRIFT OF MCSS SHOULD THEY OCCUR.
THIS MAY BRING LATE NIGHT PCPN TO NRN COUNTIES OR AT LEAST A DENSE
CIRRUS SHIELD. WITH THIS IN MIND THIS SHOULD LOWER NRN ZONES BELOW
HEAT ADVISORY THRESHOLDS BY THURSDAY ONE WAY OR ANOTHER. NOT SURE IT
CAN SAVE THE REST OF THE CWA HOWEVER SO HAVE EXTENDED THE EXCESSIVE
HEAT WARNING THROUGH THURSDAY FOR ALL BUT NRN COUNTIES.

.STL...EXCESSIVE HEAT WARNING IN EFFECT THRU WED FOR THE ENTIRE CWA,
AND THROUGH THURSDAY FOR ALL BUT NORTHERN COUNTIES INCLUDING THE
HANNIBAL/QUINCY/KAHOKA AREAS.

PEDIGO

The radar

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

Open the radar archive at this moment

Event by event

29 heat. Local standard time, as filed.

Heat, Iron

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Iron forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 37.504, -90.690 (the zone’s center; the record gives no point)

Heat, Jefferson

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Jefferson forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.261, -90.538 (the zone’s center; the record gives no point)

Heat, Knox

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Knox forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.128, -92.148 (the zone’s center; the record gives no point)

Heat, Lewis

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Lewis forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 40.097, -91.722 (the zone’s center; the record gives no point)

Heat, Lincoln

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Lincoln forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 39.058, -90.960 (the zone’s center; the record gives no point)

Heat, Madison

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Madison forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 37.478, -90.345 (the zone’s center; the record gives no point)

Heat, Marion

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Marion forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 39.806, -91.622 (the zone’s center; the record gives no point)

Heat, Moniteau

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Moniteau forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.633, -92.583 (the zone’s center; the record gives no point)

Heat, Monroe

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Monroe forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 39.496, -92.001 (the zone’s center; the record gives no point)

Heat, Montgomery

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Montgomery forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.942, -91.470 (the zone’s center; the record gives no point)

Heat, Audrain

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Audrain forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 39.216, -91.842 (the zone’s center; the record gives no point)

Heat, Boone

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Boone forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.991, -92.310 (the zone’s center; the record gives no point)

Heat, Callaway

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Callaway forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.836, -91.926 (the zone’s center; the record gives no point)

Heat, Cole

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Cole forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.505, -92.282 (the zone’s center; the record gives no point)

Heat, Crawford

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Crawford forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 37.976, -91.304 (the zone’s center; the record gives no point)

Heat, Franklin

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Franklin forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.411, -91.075 (the zone’s center; the record gives no point)

Heat, Gasconade

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Gasconade forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.441, -91.508 (the zone’s center; the record gives no point)

Heat, Osage

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Osage forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.460, -91.862 (the zone’s center; the record gives no point)

Heat, Pike

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Pike forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 39.344, -91.171 (the zone’s center; the record gives no point)

Heat, Ralls

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Ralls forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 39.528, -91.522 (the zone’s center; the record gives no point)

Heat, Reynolds

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Reynolds forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 37.362, -90.969 (the zone’s center; the record gives no point)

Heat, St. Charles

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: St. Charles forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.782, -90.675 (the zone’s center; the record gives no point)

Heat, St. Francois

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: St. Francois forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 37.810, -90.472 (the zone’s center; the record gives no point)

Heat, St. Louis

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: St. Louis forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.641, -90.443 (the zone’s center; the record gives no point)

Heat, St. Louis (C)

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: St. Louis (C) forecast zone
Injuries: 34 direct, 0 indirect
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.627, -90.198 (the zone’s center; the record gives no point)

Heat, Ste. Genevieve

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Ste. Genevieve forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 37.894, -90.194 (the zone’s center; the record gives no point)

Heat, Shelby

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Shelby forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 39.798, -92.077 (the zone’s center; the record gives no point)

Heat, Warren

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Warren forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 38.765, -91.161 (the zone’s center; the record gives no point)

Heat, Washington

When: August 1, 12:00 AM CST to August 2, 9:00 PM CST
Where: Washington forecast zone
Reported by: OFFICIAL NWS OBS.
Coordinates: 37.962, -90.877 (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 Missouri in 2001 Every state in 2001 This day in weather history Warnings in Missouri, 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: 5262780, 5262781, 5262782, 5262783, 5262784, 5262785, 5262786, 5262787, 5262788, 5262789, 5262916, 5262917, 5262918, 5262919, 5262920, 5262921, 5262922, 5262923, 5262924, 5262925, 5262926, 5262997, 5262998, 5262999, 5263000, 5263001, 5263002, 5263003, 5263004.