Missouri, 2012

Heat in Missouri, August 1 to 31, 2012

August 1 to 31, 2012 · NWS SGF · 34 events in 34 counties and zones

S. beginning in June and became the dominant weather pattern for much of the Summer of 2012.

Where it happened

Every event with a place to put it; 34 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
41
Property damage
None recorded
Crop damage
None recorded
Events
34

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 SGF wrote it up.

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

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 Springfield, MO wrote its last area forecast discussion before the first event at Jul 31, 10:48 PM CST, 1 hour 12 minutes earlier.

Area forecast discussion, Jul 31, 10:48 PM CST, 1 hour 12 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1148 PM CDT TUE JUL 31 2012

...UPDATE TO AVIATION...

.DISCUSSION...

ANOTHER VERY HOT DAY IS IN STORE FOR WEDNESDAY AS THE PERSISTENT
UPPER LEVEL RIDGE OVER THE SOUTHWESTERN PLAINS REMAINS IN PLACE FOR
ANOTHER DAY OR SO BEFORE FINALLY BEGINNING TO WEAKEN SOMEWHAT
THURSDAY INTO FRIDAY.

DUE TO LITTLE CHANGE IN THE OVERALL FORECAST SYNOPTIC PATTERN FOR
THE NEXT 36 HOURS WE ELECTED TO EXTEND THE CURRENT HEAT ADVISORY
ONE MORE DAY AS WEDNESDAYS MAX TEMPERATURES WILL ONCE AGAIN REACH
OR EXCEED THE CENTURY MARK. ONCE AGAIN WE EXPECT THE HIGHEST
READINGS...NEAR 105...OVER FAR SOUTHWESTERN MISSOURI AND FAR
SOUTHEASTERN KANSAS WITH READINGS TAPERING TO NEAR 100 OVER THE
FAR EASTERN OZARKS.

SYNOPTICALLY...THE THURSDAY INTO FRIDAY TIME FRAME WILL BRING A
DISTINCT FLATTENING OF THE UPPER LEVEL RIDGE AND EASTWARD SHIFT
OF THE 850MB RIDGE AXIS TOWARD THE MISSISSIPPI VALLEY. ALTHOUGH I
ONLY SEE MODERATE UPPER LEVEL HEIGHT FALLS...BELIEVE WEAKENING OF
UPPER LEVEL RIDGE WILL ALLOW COOLING OF TWO TO THREE DEGREES FOR
THURSDAY AND ANOTHER DEGREE ON FRIDAY.

ALTHOUGH THERE WILL BE A SLIGHT RISK OF SHOWER ACTIVITY WEDNESDAY
AFTERNOON...BELIEVE THE BETTER CHANCE OF ANY PRECIPITATION WILL BE
IN THE THURSDAY TO FRIDAY TIME FRAME AS A SERIES OF WEAK UPPER
LEVEL SHORT WAVES PUSH OVER THE TOP OF THE RIDGE AND PUSH THROUGH
THE AREA. MODELS ARE ALSO SHOWING SOME HINTING AT WEAK TO MODERATE
NOCTURNAL CONVECTION OVER SOUTHERN MISSOURI BOTH THURSDAY AND
FRIDAY MORNINGS IN RESPONSE TO LOW LEVEL JET SETTING UP DURING THE
EARLY MORNING HOURS.

FOR THE SATURDAY THROUGH TUESDAY TIME FRAME...A SEASONABLY STRONG
UPPER LEVEL SHORTWAVE TRACKS FROM THE CANADIAN ROCKIES
SOUTHEASTWARD TOWARD LAKE SUPERIOR BY SUNDAY AND INTO QUEBEC BY
LATE MONDAY. THE TRAILING EDGE OF THIS UPPER LEVEL TROF WILL PUSH
A WEAK SURFACE COLD FRONT THROUGH THE AREA SATURDAY
NIGHT...BRINGING THE AREA THE BEST...ALTHOUGH NOT GREAT...SHOT AT
PRECIPITATION WE HAVE SEEN IN A WHILE. ALTHOUGH NOT DYNAMICALLY OR
THERMALLY VERY STRONG...PASSAGE OF THIS FRONT WILL HELP SHAVE AN
ADDITIONAL THREE TO FOUR DEGREES OFF FRIDAYS HIGHS FOR A COUPLE OF
DAYS. WE WILL HOWEVER STILL SEE SOMEWHAT ABOVE NORMAL HIGHS FOR
THE WEEKEND INTO NEXT WEEK.

COLUCCI

&&

.AVIATION...
/ISSUED 1139 PM CDT TUE JUL 31 2012/

FOR THE 01/0600Z KSGF/KJLN/KBBG TAFS...ISOLATED TO SCATTERED
SHRA/TSRA ARE OCCURRING IN A WEAK ZONE OF LIFT ALONG AND NEAR A
STATIONARY FRONT OVER SE KS/SW MO. WILL PUT TEMPO GROUPS IN FOR KSGF
AND KBBG TAFS FOR TSTMS EARLY. PRECIP SHOULD BE BRIEF...BUT COULD
BRIEFLY AFFECT VISIBILITY. OTHERWISE...COULD SEE A REPEAT OF THIS
AGAIN LATE IN THE TAF PERIOD...BUT COVERAGE AGAIN WILL BE FAIRLY
LIMITED.

DSA

&&

.CLIMATE...

BELOW ARE SOME RECORD AFTERNOON HIGHS AND OVERNIGHT WARM LOW
TEMPERATURES THROUGH AUG 1ST FOR LOCATIONS ACROSS THE OZARKS.

     HIGHS     WARM LOWS

SPRINGFIELD 1888 TO 2011

31   104/1980  76/1896
01   105/2011  84/1934
02   108/2011  80/2011

JOPLIN 1901 TO 2011

31   104/1980  82/1942
01   108/2011  81/1980
02   110/2011  84/2011

ROLLA/VICHY 1901 TO 2011

31   106/1980  79/1980
01   104/1980  77/1980
02   103/1897  79/2011

WEST PLAINS 1948 TO 2011

31   102/1980  76/1999
01    99/2011  74/2006
02   104/2011  76/2011

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...HEAT ADVISORY UNTIL 7 PM CDT WEDNESDAY FOR MOZ055>058-066>071-
     077>083-088>098-101>106.

KS...HEAT ADVISORY UNTIL 7 PM CDT WEDNESDAY FOR KSZ073-097-101.

&&
Hazardous weather outlook, Jul 31, 10:05 PM CST, 1 hour 55 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1105 PM CDT TUE JUL 31 2012

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-020415-
BOURBON-CRAWFORD-CHEROKEE-BENTON-MORGAN-MILLER-MARIES-VERNON-
ST. CLAIR-HICKORY-CAMDEN-PULASKI-PHELPS-BARTON-CEDAR-POLK-DALLAS-
LACLEDE-TEXAS-DENT-JASPER-DADE-GREENE-WEBSTER-WRIGHT-NEWTON-
LAWRENCE-CHRISTIAN-DOUGLAS-HOWELL-SHANNON-MCDONALD-BARRY-STONE-
TANEY-OZARK-OREGON-
1105 PM CDT TUE JUL 31 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI
OZARKS AND EXTREME SOUTHEAST KANSAS.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED...

  LIMITED LIGHTNING RISK.
  ELEVATED FIRE WEATHER RISK.

DISCUSSION...

LOCALIZED THUNDERSTORMS WILL BE POSSIBLE...MAINLY WEST OF MISSOURI
HIGHWAY 13.

ONGOING DROUGHT AND DRY VEGETATION WILL KEEP THE RISK FOR WILDFIRE
ELEVATED OVER THE MUCH OF THE REGION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

DAILY AFTERNOON TEMPERATURES AND HEAT INDEX VALUES WILL RANGE
FROM THE UPPER 90S TO AROUND 105 DEGREES THROUGH THURSDAY WITH
SLIGHT MODERATION FOR FRIDAY THROUGH SUNDAY. THE HOTTEST
TEMPERATURES WILL OCCUR ACROSS SOUTHEASTERN KANSAS INTO FAR
SOUTHWESTERN MISSOURI.

ISOLATED TO SCATTERED THUNDERSTORMS WILL BE POSSIBLE FOR MUCH OF
THE WEEK...HOWEVER MOST AREAS WILL REMAIN DRY. ALTHOUGH
INSTABILITY WILL BE LIMITED...A FEW STORMS MAY PRODUCE LOCALLY
STRONG GUSTY WINDS.

THE HEAT AND LINGERING DROUGHT CONDITIONS WILL RESULT IN ELEVATED
FIRE WEATHER CONDITIONS.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

&&

THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH
OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE)

DSA

The radar

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

Open the radar archive at this moment

Event by event

34 heat. Local standard time, as filed.

Heat, Barton

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Barton forecast zone
Reported by
Official NWS Observations
Coordinates
37.502, -94.347 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the month of August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Vernon

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Vernon forecast zone
Reported by
Official NWS Observations
Coordinates
37.851, -94.342 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the month of August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Jasper

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Jasper forecast zone
Reported by
Official NWS Observations
Coordinates
37.204, -94.341 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the month of August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Newton

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Newton forecast zone
Reported by
Official NWS Observations
Coordinates
36.906, -94.339 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the month of August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, McDonald

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
McDonald forecast zone
Reported by
Official NWS Observations
Coordinates
36.629, -94.348 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the month of August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, St. Clair

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
St. Clair forecast zone
Reported by
Official NWS Observations
Coordinates
38.037, -93.776 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the month of August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Cedar

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Cedar forecast zone
Reported by
Official NWS Observations
Coordinates
37.724, -93.857 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Joplin was 0.5 degrees below normal for the month of August. The hottest temperatures occurred on August 2nd and 4th at 107 degrees. There were 6 days where the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 20 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Dade

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Dade forecast zone
Reported by
Official NWS Observations
Coordinates
37.432, -93.850 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Lawrence

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Lawrence forecast zone
Reported by
Official NWS Observations
Coordinates
37.106, -93.833 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Barry

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Barry forecast zone
Reported by
Official NWS Observations
Coordinates
36.710, -93.829 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Benton

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Benton forecast zone
Reported by
Official NWS Observations
Coordinates
38.295, -93.288 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Hickory

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Hickory forecast zone
Reported by
Official NWS Observations
Coordinates
37.941, -93.321 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Polk

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Polk forecast zone
Reported by
Official NWS Observations
Coordinates
37.617, -93.400 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Greene

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Greene forecast zone
Injuries
41 direct, 0 indirect
Reported by
Official NWS Observations
Coordinates
37.258, -93.342 (the zone’s center; the record gives no point)

The Greene County Health Department reported 41 heat related illnesses during the month of August. Most of the illnesses occurred during the first week of the month. A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Stone

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Stone forecast zone
Reported by
Official NWS Observations
Coordinates
36.747, -93.456 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Taney

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Taney forecast zone
Reported by
Official NWS Observations
Coordinates
36.655, -93.041 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Dallas

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Dallas forecast zone
Reported by
Official NWS Observations
Coordinates
37.680, -93.024 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Webster

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Webster forecast zone
Reported by
Official NWS Observations
Coordinates
37.281, -92.876 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Morgan

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Morgan forecast zone
Reported by
Official NWS Observations
Coordinates
38.424, -92.886 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Miller

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Miller forecast zone
Reported by
Official NWS Observations
Coordinates
38.215, -92.428 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Maries

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Maries forecast zone
Reported by
Official NWS Observations
Coordinates
38.162, -91.925 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Camden

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Camden forecast zone
Reported by
Official NWS Observations
Coordinates
38.027, -92.766 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Laclede

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Laclede forecast zone
Reported by
Official NWS Observations
Coordinates
37.658, -92.590 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Pulaski

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Pulaski forecast zone
Reported by
Official NWS Observations
Coordinates
37.825, -92.208 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Phelps

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Phelps forecast zone
Reported by
Official NWS Observations
Coordinates
37.877, -91.792 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Howell

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Howell forecast zone
Reported by
Official NWS Observations
Coordinates
36.774, -91.886 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for West Plains was 0.2 degrees below normal for the month of August. The hottest temperatures occurred on August 3rd at 101 degrees. There were 2 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 17 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Oregon

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Oregon forecast zone
Reported by
Official NWS Observations
Coordinates
36.687, -91.403 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for West Plains was 0.2 degrees below normal for the month of August. The hottest temperatures occurred on August 3rd at 101 degrees. There were 2 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 17 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Shannon

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Shannon forecast zone
Reported by
Official NWS Observations
Coordinates
37.157, -91.400 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for West Plains was 0.2 degrees below normal for the month of August. The hottest temperatures occurred on August 3rd at 101 degrees. There were 2 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 17 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Texas

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Texas forecast zone
Reported by
Official NWS Observations
Coordinates
37.317, -91.965 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for West Plains was 0.2 degrees below normal for the month of August. The hottest temperatures occurred on August 3rd at 101 degrees. There were 2 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 17 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Ozark

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Ozark forecast zone
Reported by
Official NWS Observations
Coordinates
36.649, -92.445 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for West Plains was 0.2 degrees below normal for the month of August. The hottest temperatures occurred on August 3rd at 101 degrees. There were 2 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 17 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Douglas

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Douglas forecast zone
Reported by
Official NWS Observations
Coordinates
36.933, -92.499 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for West Plains was 0.2 degrees below normal for the month of August. The hottest temperatures occurred on August 3rd at 101 degrees. There were 2 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 17 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Wright

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Wright forecast zone
Reported by
Official NWS Observations
Coordinates
37.270, -92.469 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for West Plains was 0.2 degrees below normal for the month of August. The hottest temperatures occurred on August 3rd at 101 degrees. There were 2 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 17 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Dent

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Dent forecast zone
Reported by
Official NWS Observations
Coordinates
37.607, -91.508 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Vichy-Rolla was 0.7 degrees above normal for the month of August. The hottest temperatures occurred on August 1st at 103 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 18 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

Heat, Christian

When
August 1, 12:00 AM CST to August 31, 11:59 PM CST
Where
Christian forecast zone
Reported by
Official NWS Observations
Coordinates
36.970, -93.189 (the zone’s center; the record gives no point)

A strong ridge of high pressure settled over the central portions of the U.S. beginning in June and became the dominant weather pattern for much of the Summer of 2012. This weather pattern finally broke down after the first week of August and temperatures became more seasonable. The overall mean temperatures for Springfield was 0.8 degrees below normal for the month of August. The hottest temperatures occurred on August 4th at 106 degrees. There were 3 days where the the maximum temperature reached 100 degrees or higher and this occurred during the first week of the month. There were 16 days where the maximum temperatures reached 90 degrees or above. Heat advisories and warnings were issued for portions of the area for the early portion of August. Even though air temperatures were extreme, the humidity levels were relatively dry causing the heat index to be closer to the actual air temperatures.

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

More

Every storm in Missouri in 2012Every state in 2012This day in weather historyWarnings in Missouri, August 2012

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: 397021, 397022, 397023, 397024, 397025, 397026, 397027, 397028, 397029, 397030, 397031, 397032, 397033, 397034, 397035, 397036, 397037, 397038, 397039, 397040, 397041, 397042, 397043, 397044, 397045, 397046, 397047, 397048, 397049, 397050, 397051, 397052, 397053, 397054.