Severe Thunderstorm Warning 36, NWS Topeka, KS

704 
WWUS53 KTOP 131747
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1247 PM CDT SUN APR 13 2014

KSC061-127-161-197-131815-
/O.CON.KTOP.SV.W.0036.000000T0000Z-140413T1815Z/
RILEY-MORRIS-GEARY-WABAUNSEE-
1247 PM CDT SUN APR 13 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
WABAUNSEE...SOUTHEASTERN GEARY...NORTHERN MORRIS AND SOUTHEASTERN
RILEY COUNTIES UNTIL 115 PM CDT...

AT 1245 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WHITE CITY...
AND MOVING NORTHEAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
WHITE CITY...PARKERVILLE...DWIGHT...ALTA VISTA AND VOLLAND.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 310 AND 321.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3880 9640 3863 9683 3896 9684 3913 9648
      3912 9640
TIME...MOT...LOC 1747Z 227DEG 29KT 3877 9672

HAIL...1.00IN
WIND...60MPH

$$

256 
WWUS53 KTOP 131800
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
100 PM CDT SUN APR 13 2014

KSC061-127-161-197-131815-
/O.CON.KTOP.SV.W.0036.000000T0000Z-140413T1815Z/
RILEY-MORRIS-GEARY-WABAUNSEE-
100 PM CDT SUN APR 13 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL
WABAUNSEE...SOUTHEASTERN GEARY...NORTH CENTRAL MORRIS AND
SOUTHEASTERN RILEY COUNTIES UNTIL 115 PM CDT...

AT 1259 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR DWIGHT...AND
MOVING NORTHEAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
ALTA VISTA AND VOLLAND.

THIS INCLUDES INTERSTATE 70 BETWEEN MILE MARKERS 310 AND 321.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3880 9640 3877 9667 3903 9669 3913 9648
      3912 9640
TIME...MOT...LOC 1800Z 227DEG 29KT 3886 9657

HAIL...1.00IN
WIND...60MPH

$$

967 
WWUS53 KTOP 131818
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
118 PM CDT SUN APR 13 2014

KSC061-127-161-197-131828-
/O.EXP.KTOP.SV.W.0036.000000T0000Z-140413T1815Z/
RILEY-MORRIS-GEARY-WABAUNSEE-
118 PM CDT SUN APR 13 2014

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL WABAUNSEE...
SOUTHEASTERN GEARY...NORTH CENTRAL MORRIS AND SOUTHEASTERN RILEY
COUNTIES HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER...SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3880 9640 3877 9667 3903 9669 3913 9648
      3912 9640
TIME...MOT...LOC 1800Z 227DEG 29KT 3885 9655

$$

SANDERS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TOPEKA KS
639 AM CDT Sun Apr 13 2014

...Update to aviation forecast discussion...

.SHORT TERM...(Through Today
Issued at 430 AM CDT SUN APR 13 2014

...Today's focus on severe thunderstorm potential with winter
weather possible overnight...

Sunday is yet another day with a complex weather setup across the
area and high impact weather expected. At 3 AM, A broad upper trough
was centered over the central Rockies while one of the main short
wave troughs was located over SE Colorado. Multiple weak short
wavelength impulses could be interpreted within the fringes of the
faster southwest flow aloft from NE New Mexico into Iowa. One of
these impulses was evident in low level wind profiles and even radar
imagery to some extent just west of Wichita. At the surface, a
trough axis extended from near Salina into the northeast corner of
KS and was impacting the surface wind fields with some enhanced low
level convergence along I-70. A cold front extended from roughly
Dodge City through Concordia and to Beatrice. The front had made
some gradual southward progression early this morning on the back
side of a short wave impulse that moved through southwest Iowa, but
with another impulse quickly following has essentially stalled with
a bit of a wavy shape coincident with those impulses.

Through Mid Morning:
Elevated instability of 1000 to 2000 J/kg was in place across the
area, especially in northern KS, but the elevated parcels appear to
be capped off by 100 to 200 J/kg of CINH evidenced by the RAP. The
local cap is evident in radar trends over south central KS, but is
likely weaker with northward extent and will weaken as the short
wave near ICT moves northeast into the area. Shear profiles are odd,
with a strong-weak-strong wind profile with height. Feel that the
cap may be overtaken as the short wave ascent overspreads the
stronger low level convergence and flow in the most unstable
isentropic layer impinges upon a sharper pressure gradient in the
vicinity of I-70. This should result in scattered t-storm activity
near/north of I-70 between 4 AM and 9 AM with the focus shifting
north with time. These storms would be elevated if they develop and
perhaps capable of severe hail if they can obtain some supercell
structure, although that is questionable based on the weakness in
the shear profile. Could see a brief period of subsidence behind the
wave as it passes, which could potentially keep the area on the
quiet side during the late morning hours.

This Afternoon:
By noon, expect the surface cold front to have progressed a bit
farther south on the heels of the morning activity, and seems likely
to be located in the vicinity of a Herington to Holton line.
Forcing from the main upper trough will begin to overspread the
frontal zone while low level convergence is forecast to increase
substantially within the frontal zone by mid day as well.
Temperatures will warm into the mid to upper 70s or warmer ahead of
the front with dewpoints in the 59 to 62 range. The capping
inversion will weaken a bit by mid day and all of these factors are
expected to lead to widespread convective development in the frontal
zone between roughly 11 AM and 2 PM. Wind shear seems pretty likely
to support supercell structures, but there remain occasional
weaknesses within the shear profile and the strength of forcing may
cause updraft interference and storm mergers into segments.
Individual storm motion will be toward the northeast but the slow
frontal progression at that time (perhaps even stalled front during
early afternoon) will probably allow cells to remain surface based
for a while without the boundary undercutting them. The greatest
severe weather threat appears to be large hail especially in any
embedded supercells, but if upscale growth into line segments moving
along the frontal boundary occurs, then a bit of a damaging wind
threat may materialize. LCL/LFC's are quite low though which would
inhibit downdraft strength and wind potential to some extent. While
low level shear is not particularly strong, the very low LCL's and
presence of ample low level instability may warrant at least some
potential for tornadoes although this too will be highly dependent
upon the presence of supercell structures with minimal interference
from nearby storms. As of now, it's a small tornado potential but
non-zero. The cold front will gradually push southeast and out of
the forecast area by around 6 PM but elevated instability will
remain in place northwest of the front through the day and showers
with embedded thunderstorms are in the forecast for the entire area
through the day.

The other item of interest during the daytime hours will be strong
winds behind the cold front with gusts in the 45 to 50 mph range
seeming likely in north central KS this afternoon. Have issued a
wind advisory for the areas most likely to see the strong winds
during the day.

.LONG TERM...(Tonight through Saturday)
Issued at 430 AM CDT SUN APR 13 2014

By 00z Monday, models show the cold front situated just southeast of
the cwa. Showers and thunderstorms along and behind the front may
still be in place across far east central Kansas into the early
evening hours, but should exit to the southeast by mid evening.
Surface-based and MUCAPE should quickly diminish with the frontal
passage so the threat for strong to severe thunderstorms over east
central Kansas should diminish during the early evening hours.

The broad mid-level trough associated with this system will have two
embedded shortwaves that will impact the region. The first of these
shortwaves will help to push the cold front through the region and
will progress east of the area Sunday evening. Models show the
second shortwave over the central Rockies this evening and tracking
eastward over the region during the day on Monday. Between these two
waves, precipitation looks to diminish some late this evening into the
early overnight hours as the available lift decreases behind the
first exiting shortwave. However, model soundings still show a
shallow moisture layer present so could see some periods of
scattered light precipitation into the early overnight hours before
the second shortwave approaches the region. Models are in fairly
good agreement in having the moisture from this second shortwave
surge into central Kansas between 06z-09z and progress eastward
across the area between 09z-12z. However, there are still some model
discrepancies with regards to just how far south this shortwave will
dig into the Southern Plains, which has an impact on the exact
tracking of the moisture across the forecast area. Have trended more
with the deeper wave which would push precipitation out of north
central Kansas by Monday morning and keep precipitation over east
central Kansas into the late morning/early afternoon hours. Another
challenge with this forecast is with regards to precipitation type.
A tight pressure gradient is expected to develop behind the frontal
passage, resulting in very breezy northerly winds producing gusts
upwards of 35-45 mph tonight and only slightly diminishing overnight
into Monday with gusts of 25-35mph. This strong northerly flow will
bring a surge of cold air into the region with temperatures quickly
falling into the 30s tonight into Monday morning. Soundings show the
elevated warm nose quickly cooling this evening, but with the
shallow moisture layer in place by late this evening there is
uncertainty with how much (if any) saturation will be present in the
dendritic growth zone. Have slowed down the transition over to a
rain/snow mix some for this evening, but most locations could see
this mixed precipitation by Monday morning with much of north
central and far northeast Kansas likely transitioning entirely over
to light snow overnight. Any snow accumulations should be limited
due to the warmer ground temperatures, but cannot rule out light
accumulations of around one-half inch or less. This wave will
finally track east of the area Monday afternoon, ending the
precipitation. With the strong northerly flow persisting through the
day on Monday and cloud cover remaining in place for much of the
area, temperatures will be much cooler than normal with highs only
reaching into the 40s.

A more zonal mid-level flow will set up behind this exiting trough
with surface high pressure quickly building into the central conus
by Monday night. With this surface high centered over the region,
frigid conditions are expected with Tuesday morning low temperatures
likely plummeting into the middle 20s, so freeze headlines will
likely be needed. Temperatures should quickly rebound into the 50s
and 60s Tuesday and Wednesday as the surface high tracks east of the
area and winds shift to the southwest.

The next focus is on the mid-level trough models show developing across
the northern Rockies on Wednesday. The models are starting to come
into better agreement with the progression of this wave as it
advances into the central U.S., but there is still uncertainty with
the exact timing of this system and how far south the trough will
dig across the Central Plains on Thursday. Models show a frontal
passage on Thursday, so could see a spread in high temperatures from
northwest to southeast across the area. At this time, introduce PoPs
into north central Kansas Wednesday night with chance PoPs spreading
across the forecast area for Thursday and Thursday night. Most of
this precipitation should be in the form of rain, but there is a
chance for a rain/snow mix Thursday night across north central
Kansas as temperatures may drop back down into the low 30s.
Temperatures rebound once again into the 50s and 60s for Friday and
Saturday as surface high pressure moves in behind the exiting
system.

&&

.AVIATION...(For the 12Z TAFs through 12Z Monday Morning)
Issued at 633 AM CDT SUN APR 13 2014

Rather complex TAF regarding TS potential, cig heights, and
frontal timing. Feel fairly confident in the 12Z to 17Z period
being VFR with southeast to south winds at all sites, although
there is small potential for TS to impact TAF sites. After 17Z,
expect more widespread TS to develop, some with hail, with a
better chance at TOP/FOE than MHK. Winds will shift out of the
north as a strong cold front passes through with moderate
confidence in front timing, and cigs will drop. Most likely cigs
in the 800 to 1400 ft AGL range, and seem to have a window of
potential IFR especially at TOP/FOE. After initial fropa, will see
predominant MVFR cigs with TS potential decreasing and drizzle
possible. May see IFR with light snow by the very end of the TAF
period...but a more likely after 12Z.

&&

.TOP WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY from 10 AM this morning to 9 PM CDT this evening
FOR KSZ008>010-020-021-034.

&&

SHORT TERM...Barjenbruch
LONG TERM...Hennecke
AVIATION...Barjenbruch

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TOPEKA KS
528 AM CDT SUN APR 13 2014

KSZ008>012-020>024-026-034>040-054>056-058-059-141030-
REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY-
POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS-
WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON-
528 AM CDT SUN APR 13 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH
CENTRAL AND NORTHEAST KANSAS.

.DAY ONE...TODAY AND TONIGHT.

THIS MORNING...A FEW STRONG TO SEVERE STORMS MAY DEVELOP NORTH OF
INTERSTATE 70...WITH THE BEST CHANCE NEAR THE NEBRASKA BORDER. THE
STRONGEST STORMS THIS MORNING MAY PRODUCE HAIL UP TO THE SIZE OF
QUARTERS.

MORE WIDESPREAD STRONG TO SEVERE STORMS ARE EXPECTED TO DEVELOP
BETWEEN 11 AM AND 2 PM...MAINLY NEAR AND SOUTHEAST OF A HERINGTON
TO MANHATTAN TO HOLTON LINE. LARGE HAIL WILL BE THE PRIMARY THREAT
WITH THESE STORMS...WITH THE STRONGEST STORMS CAPABLE OF PRODUCING
UP TO GOLFBALL SIZE HAIL. THERE IS ALSO SOME POTENTIAL FOR LOCALLY
DAMAGING WINDS UP TO 60 MPH...AS WELL AS A SMALL POTENTIAL FOR
TORNADOES. THE SEVERE WEATHER THREAT WILL SHIFT SOUTHEAST THROUGH
THE AFTERNOON HOURS...AND WILL MOVE OUT OF EAST CENTRAL KANSAS BY
AROUND 7 PM.

PARTS OF NORTH CENTRAL KANSAS CAN EXPECT NORTHERLY WIND GUSTS OF
45 MPH OR STRONGER THROUGH THE DAY TODAY AND INTO EARLY THIS
EVENING.

ANOTHER ROUND OF PRECIPITATION IS EXPECTED OVERNIGHT INTO MONDAY
MORNING ACROSS MUCH OF THE OUTLOOK AREA. WITH TEMPERATURES
DROPPING INTO THE 30S...PRECIPITATION MAY TRANSITION OVER TO LIGHT
SNOW...ESPECIALLY ACROSS NORTH CENTRAL WITH LIGHT SNOW
ACCUMULATIONS POSSIBLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

TEMPERATURES MAY DROP TO NEAR OR JUST BELOW THE FREEZING MARK
EARLY MONDAY MORNING IN NORTH CENTRAL KANSAS. BY EARLY TUESDAY
MORNING...TEMPERATURES ARE EXPECTED TO FALL BELOW FREEZING FOR THE
ENTIRE OUTLOOK AREA WITH A HARD FREEZE POSSIBLE AS LOW
TEMPERATURES MAY DROP INTO THE MIDDLE 20S.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED FROM NOON THROUGH 6 PM...MAINLY
SOUTHEAST OF A HERINGTON TO MANHATTAN TO HOLTON LINE.

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1154 AM CDT SUN APR 13 2014

KSZ022-023-036-131730-
GEARY-POTTAWATOMIE-RILEY-
1154 AM CDT SUN APR 13 2014

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN RILEY...WEST CENTRAL
POTTAWATOMIE AND NORTHWESTERN GEARY COUNTIES...

THROUGH 1230 PM CDT...A CLUSTER OF THUNDERSTORMS WILL MOVE NORTHEAST
AT 45 MPH ACROSS PORTIONS OF WESTERN RILEY...WEST CENTRAL
POTTAWATOMIE AND NORTHWESTERN GEARY COUNTIES. NATIONAL WEATHER
SERVICE DOPPLER RADAR INDICATED THESE STORMS ARE CAPABLE OF
PRODUCING NICKEL SIZE HAIL. SOME LOCATIONS THAT COULD BE AFFECTED
INCLUDE KEATS...RILEY...LEONARDVILLE...TUTTLE CREEK LAKE AND
RANDOLPH.

STAY ALERT TO THE WEATHER IN CASE A WARNING IS ISSUED.

&&

LAT...LON 3931 9655 3899 9685 3906 9696 3925 9696
      3957 9676 3957 9675
TIME...MOT...LOC 1653Z 210DEG 37KT 3920 9687

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1202 PM CDT SUN APR 13 2014

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

1159 AM     HAIL             10 E BURLINGTON         38.19N 95.56W
04/13/2014  E0.88 INCH       COFFEY             KS   TRAINED SPOTTER

&&

BYRNE

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1203 PM CDT SUN APR 13 2014

KSZ026-040-055-056-058-059-131745-
ANDERSON-COFFEY-DOUGLAS-FRANKLIN-JEFFERSON-OSAGE-
1203 PM CDT SUN APR 13 2014

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN OSAGE...SOUTHEASTERN
JEFFERSON...NORTHWESTERN ANDERSON...EASTERN COFFEY...DOUGLAS AND
FRANKLIN COUNTIES...

THROUGH 1245 PM CDT...A LINE OF STRONG THUNDERSTORMS WILL MOVE
NORTHEAST AT 55 MPH ACROSS PORTIONS OF EASTERN OSAGE...SOUTHEASTERN
JEFFERSON...NORTHWESTERN ANDERSON...EASTERN COFFEY...DOUGLAS AND
FRANKLIN COUNTIES. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THESE STORMS ARE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND FREQUENT
LIGHTNING. SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE
WILLIAMSBURG...WESTPHALIA...POMONA...CLINTON LAKE...CLINTON...
GLOBE...HARRIS...LONE STAR...CENTROPOLIS...PLEASANT GROVE...
LAWRENCE...OTTAWA...PRINCETON...LAWRENCE AIRPORT...RICHMOND...
VINLAND...BALDWIN CITY AND EUDORA. MOTORISTS ALONG THE KANSAS
TURNPIKE BETWEEN MILE MARKERS 195 AND 205 COULD ALSO BE AFFECTED.
MOTORISTS ALONG INTERSTATE 35 BETWEEN MILE MARKERS 162 AND 197 COULD
ALSO BE AFFECTED.

A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT. STAY ALERT TO THE
WEATHER IN CASE A WARNING IS ISSUED.

&&

LAT...LON 3879 9559 3921 9518 3897 9518 3898 9516
      3896 9509 3898 9509 3899 9506 3848 9511
      3803 9553 3804 9565
TIME...MOT...LOC 1703Z 217DEG 47KT 3878 9552 3806 9558

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1221 PM CDT SUN APR 13 2014

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

1140 AM     HAIL             GRIDLEY                 38.10N 95.88W
04/13/2014  E1.00 INCH       COFFEY             KS   BROADCAST MEDIA

            FROM KVOE. TIME ESTIMATED FROM RADAR DATA.

&&

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1226 PM CDT SUN APR 13 2014

KSZ010-022-023-131800-
MARSHALL-POTTAWATOMIE-RILEY-
1226 PM CDT SUN APR 13 2014

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL RILEY...POTTAWATOMIE AND
SOUTHEASTERN MARSHALL COUNTIES...

THROUGH 100 PM CDT...A CLUSTER OF THUNDERSTORMS WILL MOVE NORTHEAST
AT 35 MPH ACROSS PORTIONS OF CENTRAL RILEY...POTTAWATOMIE AND
SOUTHEASTERN MARSHALL COUNTIES. NATIONAL WEATHER SERVICE DOPPLER
RADAR INDICATED THIS CLUSTER OF STORMS IS CAPABLE OF PRODUCING NICKEL
SIZE HAIL AND HEAVY RAIN. SOME LOCATIONS THAT COULD BE AFFECTED
INCLUDE TUTTLE CREEK LAKE...OLSBURG...WESTMORELAND...WHEATON...
ONAGA...LILLIS AND BLAINE.

A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT. STAY ALERT TO THE
WEATHER IN CASE A WARNING IS ISSUED.

&&

LAT...LON 3959 9624 3957 9623 3957 9618 3953 9609
      3920 9654 3927 9682 3971 9651
TIME...MOT...LOC 1725Z 216DEG 31KT 3924 9670

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1234 PM CDT SUN APR 13 2014

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

1230 PM     HAIL             7 NW WHITE CITY         38.87N 96.83W
04/13/2014  E1.00 INCH       MORRIS             KS   PUBLIC

&&

BYRNE