Climatological Report (Monthly)
Issued by NWS
CXUS53 KICT 011713
NATIONAL WEATHER SERVICE WICHITA KS
1212 PM CDT THU SEP 1 2016
...THE CHANUTE KS CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2016...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1894 TO 2016
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
HIGH 113 08/09/1936
LOW 45 08/29/1988
HIGHEST 98 08/11 94 08/03
LOWEST 54 08/21 52 08/25
AVG. MAXIMUM 88.8 89.8 -1.0 86.2
AVG. MINIMUM 68.8 67.9 0.9 64.6
MEAN 78.8 78.9 -0.1 75.4
DAYS MAX >= 90 13 15.7 -2.7 10
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
MAXIMUM 11.44 2005
MINIMUM 0.00 2000
TOTALS 5.75 3.69 2.06 6.17
DAILY AVG. 0.19 0.12 0.07 0.20
DAYS >= .01 12 7.2 4.8 8
DAYS >= .10 9 4.6 4.4 6
DAYS >= .50 3 2.4 0.6 4
DAYS >= 1.00 2 1.3 0.7 2
24 HR. TOTAL 2.42 08/19 TO 08/20
HEATING TOTAL 0 1 -1 0
SINCE 7/1 0 1 -1 0
COOLING TOTAL 439 430 9 333
AVERAGE WIND SPEED 6.8
HIGHEST WIND SPEED/DIRECTION 28/180 DATE 08/23
HIGHEST GUST SPEED/DIRECTION 37/350 DATE 08/19
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.20
NUMBER OF DAYS FAIR 22
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 75
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 15 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 5
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 16 FOG W/VIS <= 1/4 MILE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
...August Proves Wet And Wild As Numerous Thunderstorms Cause Major
As was the case in July, when severe thunderstorms caused serious
flooding and flash flooding on the weekend of the 4th, strong and
severe thunderstorms produced torrential rains that caused more
serious flooding and flash flooding in August.
The flooding occurred on the first and third weekends, from the 5th
to the 7th, and from the 19th to the 21st. Both events hit parts of
South-Central and Southeast Kansas, and hit them hard with rainfall
that, in few cases, proved record-setting.
On the 5th, a nearly stationary front set up camp across Southern
Kansas. The front shifted very slowly into Northern Oklahoma. With
very high octane moisture entrenched across these areas, coupled
with very weak flow in the upper atmosphere, the stage was set for
slow, torrential rain-producing thunderstorms across South-Central
and Southeast Kansas where a few areas were doused by 2 to 3 inches
overnight from the 5th to the 6th.
On the 6th, the heavy rains continued, so much in fact, that Wichita
set a record for the date by measuring 2.17 inches. This washed out
the record of 1.45 inches set 95 years ago in 1921.
On the 7th, the faucet was turned up even further, as Wichita was
soaked by 2.67 inches. This, too, set a record, edging the 2.62
inches measured in 1888, when Wichita`s climate record began.
Shortly after Mid-Night, a Flash Flood Warning was issued for all of
South-Central Kansas along, and west, of I-35/I-135 until early on
the morning of the 8th. As the morning of the 8th progressed, flood
warnings were issued for parts of South-Central and Southeast Kansas
that would be in effect the rest of the day.
That weekend, from the 5th to the 7th, nearly 6 inches were measured
at Eisenhower Airport, 5.95 inches to be exact. Up to and including
the 9th, Wichita had measured 6.82 inches at Eisenhower Airport. This
had already guaranteed 2016 a top 10 finish in the "Wettest Augusts"
list, tying it with 2003.
...Unprecedented Flash Flooding Turns Deadly...
On the afternoon of the 19th, a strong cold front that stretched from
Iowa, through North-central and Southwest Kansas, to the Oklahoma
Panhandle ventured into an extremely moisture-rich environment. With
the upper-level flow nearly paralleling the front, thunderstorms that
developed would traverse parts of South-Central Kansas repeatedly,
especially Southeast Sedgwick, Northern Sumner, Northern Cowley and
Southwest Butler Counties where 4 to 7 inches inundated many areas in
only 3 to 5 hours that evening.
At 812 PM CDT, the first of two Flash Flood Warnings was issued for
these areas. At 1110 PM CDT, the second Flash Flood Warning was
issued for these same areas by which time rainfalls in many areas had
increased to between 5 and 8 inches in just 6 hours. The greatest
amount was near Rose Hill, which was inundated by around 9 inches in
only a few hours!
The flash flooding that resulted was so serious that many vehicles
were swept off roads. One such incident occurred in the Southwest
corner of Butler County where a truck was swept off a road next to
Polecat Creek just a couple miles south of Rose Hill shortly before
10 PM. It was this incident that proved tragic, when a 62-year old
man went missing. The search became a recovery operation Saturday
The most serious flash flooding occurred in Derby, Mulvane, and Rose
Hill, where people were also rescued from homes. The historic Polecat
Creek Stone Arch Bridge, built in 1901, was virtually destroyed.
This was the worst flash flood to strike these areas that anyone had
The 1.13 inches measured at Eisenhower Airport on the 19th, which no
doubt was a sprinkle compared to the unprecedented deluge that
inundated South and Southeast-neighboring areas, increased Wichita`s
August rainfall to 8.12 inches, assuring 2016 of a 4th place ranking
on the "Wettest Augusts" list. Scattered thunderstorms that visited
South-Central Kansas on the 25th and 26th produced another 0.05 and
0.07 inch, respectively to bring the total August rainfall to 8.24
As impressive as August`s rainfall was, it easily would`ve been more
so for on the 30th, numerous showers developed in the Wichita Metro
Area late that afternoon, and with a tropical airmass entrenched
across Kansas, the rains were very heavy. Eisenhower Airport happened
to be in a "rain-free" zone and failed to measure, but areas just 3
to 5 miles to the northwest were drenched with 0.5 to 1 inch in less
than an hour.
The following are Wichita`s 10 wettest Augusts:
1st: 11.96 2005
2nd: 10.63 2013
3rd: 8.50 1933
4th: 8.28 2016**
5th: 7.91 1960
6th: 7.77 1888
7th: 7.69 1987
8th: 7.67 1895
9th: 7.57 1991
10th: 6.82 2003
The following are Salina`s 10 wettest Augusts:
1st: 13.75 1977
2nd: 8.72 1927
3rd: 7.99 1929
4th: 7.84 2016**
5th: 7.48 1960
6th: 7.37 1985
7th: 6.80 1917
8th: 6.70 2006
9th: 6.60 1887
10th: 6.58 1942
A few of the thunderstorms that struck Sumner and Cowley counties on
the evening of the 19th were severe with 65 to 70 mph gusts.
On the 23rd and 24th, severe thunderstorms struck parts of South
Central and Southeast Kansas with hail as large as golfballs and 60
to 70 mph winds.
Thanks to July and August, this has definitely been a soggy summer.
The following are Wichita`s 10 wettest summers (June-August):
1st: 23.61 2005
2nd: 23.32 1950
3rd: 20.78 2016**
4th: 20.15 2013
5th: 19.90 1951
6th: 18.87 1948
7th: 18.71 1995
8th: 18.07 1960
9th: 17.75 1989
10th: 17.09 2004