Alert archive / Missouri / Special Weather Statements in 2015

Special Weather Statement, NWS Kansas City, MO

August 3, 2015Clinton County, Missouri

NWS Kansas City, MO issued this special weather statement at Aug 3, 2015, 7:32 AM CDT for Clinton County, Missouri. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 3, 2015, 7:32 AM CDT (12:32 UTC)
Expired: Aug 3, 2015, 8:00 AM CDT
In force: 28 min
Issued by: NWS Kansas City, MO

County Clinton County, MO

The radar

The Pleasant Hill radar (KEAX), 92 km from the middle of the area, began a volume at 12:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 0.5 hours before the alert went out and 125 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: 1102 J/kg
Mixed-layer CIN: -168 J/kg
Mixed-layer LCL: 1279 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Kansas City, MO wrote its last area forecast discussion before this special weather statement went out at Aug 3, 6:45 AM CDT, 47 minutes earlier.

Area forecast discussion, Aug 3, 6:45 AM CDT, 47 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
645 AM CDT MON AUG 3 2015

.DISCUSSION...
Issued at 440 AM CDT MON AUG 3 2015

Today - Tonight:

Scattered convection continues to bubble within a narrow corridor
lying northwest-southeast over northwest MO. While a cold
front has nosed into northern MO it appears isentropic
ascent on the 305K and 310K surfaces is the primary
driver, the same mechanism which aided convection over the past 2
days. Due to several outflow boundaries put out by Sunday nights
convection its difficult to locate the cold front his morning.

The short range models weaken the isentropic ascent this morning so
the current convection should dissipate. Going forward think the
cold front will stall over the CWA today with model consensus
dividing the CWA in half. Isolated/widely scattered convection
possible along/north of the boundary during peak afternoon heating.
Pulse type convection with potential for microbursts due to extreme
instability, 0-6km shear of 4000J/kg near the front, and 25-
30kt of 0-6km shear.

Conditions for more organized/widespread convection expected
overnight due to a modest increase in the southwesterly low-level
jet. These winds should transport the higher theta-e air northeast
and over the slowly retreating front. Highest PoPs painted across
the northern 1/3 of the CWA.

Tuesday - Wednesday:

This looks like the most favorable period for more widespread
convection with heavy rain potential as precipitable water values
exceed 2 inches or around 150% of average or 99th percentile. Models
have been clear for the past 3 days that a well defined shortwave
trough will migrate eastward across the Central Rockies and Central
Plains. While there remains some timing and location differences
between the models they all agree that a couple rounds of convection
are likely over the CWA. High temperatures will be a bit problematic
as convective debris and any prolonged bouts of convection will
greatly limit heating. For now will shoot for the high end on the
assumption there will be sufficient heating to achieve seasonal
temperatures.

Thursday - Sunday:

Operational models gradually build the dome of high pressure back
into the central U.S. with surface riding from the Great Lakes
into the Mid MO Valley. This isn't much different than previous
runs. What is different is the models now modify this airmass
over time resulting in slightly below average to average
temperatures.

Thursday night and Saturday night currently carry the highest
chances for rain which is typical for this time of year. Both
the GFS and ECMWF bring a couple shortwave troughs over the top of
the broad upper high and through IA/MO.

&&

.AVIATION...(For the 12Z TAFS through 12Z Tuesday Morning)
Issued at 642 AM CDT MON AUG 3 2015

Small area of convection continues to pulse up and down over
northwest MO and believe this will continue through mid morning.
By mid/late afternoon widely scattered convection will be possible
generally along/north of the MO River. During the overnight period
showers and thunderstorms are expected to increase in coverage across
northern MO.

As for the terminals expect VFR conditions with only a small risk of
thunderstorms in the terminals. KSTJ has a slightly better chance of
seeing convection tonight.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
MO...NONE.
&&

DISCUSSION...MJ
AVIATION...MJ

Hazardous weather outlook, Aug 3, 5:02 AM CDT, 2 hours 30 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
502 AM CDT MON AUG 3 2015

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-041015-
ATCHISON KS-MIAMI-LINN KS-DONIPHAN-LEAVENWORTH-WYANDOTTE-JOHNSON KS-
ATCHISON MO-NODAWAY-WORTH-GENTRY-HARRISON-MERCER-PUTNAM-SCHUYLER-
HOLT-ANDREW-DE KALB-DAVIESS-GRUNDY-SULLIVAN-ADAIR-BUCHANAN-CLINTON-
CALDWELL-LIVINGSTON-LINN MO-MACON-PLATTE-CLAY-RAY-CARROLL-CHARITON-
RANDOLPH-JACKSON-LAFAYETTE-SALINE-HOWARD-CASS-JOHNSON MO-PETTIS-
COOPER-BATES-HENRY-
502 AM CDT MON AUG 3 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND
WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS.

.DAY ONE...TODAY AND TONIGHT

 ISOLATED THUNDERSTORMS WILL BE POSSIBLE EARLY THIS MORNING OVER
 PARTS OF NORTHWEST MISSOURI. NO SEVERE WEATHER IS EXPECTED WITH
 THIS ACTIVITY.

 WIDELY SCATTERED THUNDERSTORMS WILL BE POSSIBLE OVER MOST OF THE
 REGION DURING THE MID TO LATE AFTERNOON HOURS. SOME OF THE STRONGER
 STORMS COULD PRODUCE STRONG AND GUSTY WINDS.

 THE THREAT FOR THUNDERSTORMS WILL INCREASE TONIGHT MAINLY OVER
 NORTHERN MISSOURI. THE STRONGER OF THE STORMS COULD PRODUCE
 HAIL...HIGH WINDS AND TORRENTIAL RAIN.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/EAX/HWO

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

 SEVERAL PERIODS OF THUNDERSTORMS ARE EXPECTED DURING THE PERIOD WITH
 TUESDAY THROUGH WEDNESDAY HAVING THE HIGHEST CHANCES.

 MORE DETAILED INFORMATION CAN BE ACCESSED AT...
 HTTP://WWW.WEATHER.GOV/EAX/HWO

In the hours before

Local storm report, Aug 3, 1:36 AM CDT, 5 hours 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
136 AM CDT MON AUG 03 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0110 AM     HAIL             MARYVILLE               40.34N 94.87W
08/03/2015  E0.88 INCH       NODAWAY            MO   PUBLIC

&&

JWELSH

Special weather statement, Aug 3, 2:37 AM CDT, 4 hours 55 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
237 AM CDT MON AUG 3 2015

MOZ002-004-012-030800-
GENTRY MO-NODAWAY MO-ANDREW MO-
237 AM CDT MON AUG 3 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN ANDREW...
SOUTHWESTERN GENTRY AND SOUTHEASTERN NODAWAY COUNTIES UNTIL 300 AM
CDT...

AT 237 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
RAVENWOOD...OR NEAR STANBERRY...MOVING SOUTH AT 20 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
STANBERRY...CONCEPTION JUNCTION...CLYDE...FORD CITY AND CONCEPTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4030 9473 4034 9456 4011 9439 4004 9469
TIME...MOT...LOC 0737Z 339DEG 18KT 4027 9464

CUTTER

Special weather statement, Aug 3, 6:22 AM CDT, 1 hour 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
622 AM CDT MON AUG 3 2015

MOZ013-014-031145-
DE KALB MO-DAVIESS MO-
622 AM CDT MON AUG 3 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DAVIESS AND
SOUTHEASTERN DEKALB COUNTIES UNTIL 645 AM CDT...

AT 621 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
MAYSVILLE...MOVING SOUTHEAST AT 10 MPH.

DIME SIZE HAIL AND WINDS IN EXCESS OF 30 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CAMERON...MAYSVILLE AND WEATHERBY.

THIS INCLUDES INTERSTATE 35 IN MISSOURI BETWEEN MILE MARKERS 55 AND
62.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3980 9409 3979 9413 3979 9420 3976 9421
      3975 9426 3975 9428 3988 9436 3993 9423
TIME...MOT...LOC 1121Z 333DEG 11KT 3985 9428

CUTTER

Local storm report, Aug 3, 6:46 AM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
646 AM CDT MON AUG 03 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0815 PM     TSTM WND DMG     3 E POLLOCK             40.36N 93.03W
08/02/2015                   SULLIVAN           MO   TRAINED SPOTTER

            3 INCH DIAMETER TREE BRANCH BROKEN...50 MPH WINDS
            ESTIMATED

0825 PM     TSTM WND GST     2 N GREEN CASTLE        40.29N 92.88W
08/02/2015  E60.00 MPH       SULLIVAN           MO   TRAINED SPOTTER

            ESTIMATED LEADING WIND GUST UP TO 60 MPH

0829 PM     TSTM WND DMG     1 S GREEN CITY          40.25N 92.95W
08/02/2015                   SULLIVAN           MO   TRAINED SPOTTER

            6 INCH DIAMETER TREE LIMB SNAPPED

0833 PM     TSTM WND GST     1 E MILAN               40.20N 93.10W
08/02/2015  E60.00 MPH       SULLIVAN           MO   TRAINED SPOTTER

            ESTIMATED 55 TO 60 MPH WIND GUSTS

0844 PM     TSTM WND GST     KIRKSVILLE              40.19N 92.58W
08/02/2015  E60.00 MPH       ADAIR              MO   LAW ENFORCEMENT

            POWER LINES DOWN IN TOWN

0844 PM     HAIL             1 W KIRKSVILLE          40.19N 92.60W
08/02/2015  E0.88 INCH       ADAIR              MO   LAW ENFORCEMENT

0846 PM     TSTM WND GST     3 S KIRKSVILLE          40.15N 92.58W
08/02/2015  M50.00 MPH       ADAIR              MO   ASOS

0850 PM     TSTM WND GST     EAGLEVILLE              40.47N 93.99W
08/02/2015  E60.00 MPH       HARRISON           MO   TRAINED SPOTTER

0859 PM     TSTM WND GST     RIDGEWAY                40.38N 93.94W
08/02/2015  E70.00 MPH       HARRISON           MO   LAW ENFORCEMENT

            SEVERAL REPORTS OF 70 MPH WIND GUSTS FROM EAGLEVILLE TO
            RIDGEWAY...POWER OUTAGES REPORTED

0916 PM     TSTM WND GST     10 NE MACON             39.84N 92.34W
08/02/2015  E55.00 MPH       MACON              MO   PUBLIC

            REPORT GATHERED VIA SOCIAL MEDIA.

0920 PM     TSTM WND DMG     MACON                   39.74N 92.47W
08/02/2015                   MACON              MO   LAW ENFORCEMENT

            COUPLE LARGE TREE LIMBS BLOCKING ROAD IN TOWN OF MACON

0934 PM     HAIL             SHERIDAN                40.52N 94.61W
08/02/2015  E1.00 INCH       WORTH              MO   CO-OP OBSERVER

0947 PM     TSTM WND GST     4 NE JAMESPORT          40.02N 93.75W
08/02/2015  E60.00 MPH       GRUNDY             MO   EMERGENCY MNGR

            HIGHWAY 6 AND ROAD WW

0958 PM     TSTM WND GST     4 NE LOCK SPRINGS       39.89N 93.72W
08/02/2015  E60.00 MPH       LIVINGSTON         MO   EMERGENCY MNGR

            60 MPH WINDS ONE MILE WEST OF ROUTE U AND FOUR MILES
            NORTH HIGHWAY 190

1107 PM     HAIL             1 N HOPKINS             40.57N 94.82W
08/02/2015  E1.00 INCH       NODAWAY            MO   TRAINED SPOTTER

            QUARTER SIZED HAIL FALLING NOW

1140 PM     HAIL             5 S HOPKINS             40.48N 94.82W
08/02/2015  M1.50 INCH       NODAWAY            MO   TRAINED SPOTTER

1140 PM     HAIL             HOPKINS                 40.55N 94.82W
08/02/2015  E0.88 INCH       NODAWAY            MO   LAW ENFORCEMENT

0110 AM     HAIL             MARYVILLE               40.34N 94.87W
08/03/2015  E0.88 INCH       NODAWAY            MO   PUBLIC

&&

MJ

Special weather statement, Aug 3, 7:32 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
732 AM CDT MON AUG 3 2015

MOZ020-021-031300-
BUCHANAN MO-CLINTON MO-
732 AM CDT MON AUG 3 2015

...SIGNIFICANT WEATHER ADVISORY FOR CLINTON AND SOUTHEASTERN BUCHANAN
COUNTIES UNTIL 800 AM CDT...

AT 731 AM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
PLATTSBURG...MOVING SOUTH AT 50 MPH.

DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
CAMERON...PLATTSBURG...LATHROP...GOWER...STEWARTSVILLE...OSBORN...
EASTON AND TURNEY.

THIS INCLUDES INTERSTATE 35 IN MISSOURI BETWEEN MILE MARKERS 34 AND
53.

LAT...LON 3975 9423 3974 9421 3945 9421 3952 9460
      3953 9460 3954 9467 3975 9468
TIME...MOT...LOC 1231Z 003DEG 45KT 3963 9438

DH

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 2, 7:40 PM CDT	Severe Thunderstorm Warning	EAX	Mercer, Putnam, Sullivan	50 min
Aug 2, 8:16 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Putnam, Sullivan	29 min
Aug 2, 8:23 PM CDT	Severe Thunderstorm Warning	EAX	Harrison	37 min
Aug 2, 8:43 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Linn, Macon, Sullivan	32 min
Aug 2, 8:48 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway, Worth	42 min
Aug 2, 8:56 PM CDT	Severe Thunderstorm Warning	EAX	Daviess, Grundy, Harrison, Mercer	49 min
Aug 2, 9:11 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Linn, Macon, Randolph	34 min
Aug 2, 9:24 PM CDT	Severe Thunderstorm Warning	EAX	Gentry, Nodaway, Worth	51 min
Aug 2, 9:32 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Daviess, Grundy, Harrison, Linn, Livingston	43 min
Aug 2, 9:39 PM CDT	Flash Flood Warning	EAX	Gentry, Harrison, Nodaway, Worth	6 hr
Aug 2, 10:15 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Linn, Livingston	30 min
Aug 2, 10:35 PM CDT	Special Weather Statement	EAX	Carroll	25 min
Aug 2, 10:43 PM CDT	Special Weather Statement	EAX	Livingston	32 min
Aug 2, 10:47 PM CDT	Special Weather Statement	EAX	Worth	43 min
Aug 2, 11:03 PM CDT	Severe Thunderstorm Warning	EAX	Nodaway, Worth	42 min
Aug 2, 11:45 PM CDT	Severe Thunderstorm Warning	EAX	Gentry, Nodaway	45 min
Aug 3, 12:05 AM CDT	Flash Flood Warning	EAX	Gentry, Nodaway	6 hr
Aug 3, 12:17 AM CDT	Special Weather Statement	EAX	Mercer	43 min
Aug 3, 12:27 AM CDT	Severe Thunderstorm Warning	EAX	Gentry, Nodaway	48 min
Aug 3, 1:05 AM CDT	Special Weather Statement	EAX	Andrew	25 min
Aug 3, 1:26 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, DeKalb	34 min
Aug 3, 2:37 AM CDT	Special Weather Statement	EAX	Gentry	23 min
Aug 3, 4:40 AM CDT	River Flood Warning	EAX	Andrew, Nodaway	7 days
Aug 3, 6:22 AM CDT	Special Weather Statement	EAX	DeKalb	23 min
Aug 3, 11:14 AM CDT	Special Weather Statement	EAX	Andrew, DeKalb	46 min
Aug 3, 11:23 AM CDT	Special Weather Statement	EAX	Daviess	37 min
Aug 3, 11:38 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Daviess, DeKalb	37 min
Aug 3, 11:40 AM CDT	Severe Thunderstorm Warning	EAX	Daviess, Grundy, Harrison	35 min
Aug 3, 11:45 AM CDT	Areal Flood Advisory	EAX	Daviess, Harrison	3 hr
Aug 3, 12:15 PM CDT	Special Weather Statement	EAX	Daviess	30 min

Nearby

Special Weather Statements in Missouri, 2015 Every special weather statement in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.