Severe Thunderstorm Warning 9, NWS Dodge City, KS

000 
WWUS53 KDDC 170551
SVSDDC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
1251 AM CDT THU APR 17 2008

KSC145-165-170615-
/O.CON.KDDC.SV.W.0009.000000T0000Z-080417T0615Z/
RUSH KS-PAWNEE KS-
1251 AM CDT THU APR 17 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTH CENTRAL PAWNEE AND EASTERN RUSH COUNTIES...

AT 1248 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS
LOCATED 5 MILES EAST OF ASH VALLEY...MOVING NORTHEAST AT 26 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ASH VALLEY...
  TIMKEN...
  BISON...
  SHAFFER...
  OTIS...
  RURAL RESIDENCES OF EASTERN RUSH AND NORTHERN PAWNEE COUNTIES.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. IF CAUGHT OUTSIDE
SEEK A STURDY SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS
PASSED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CDT
THURSDAY MORNING FOR SOUTHWESTERN KANSAS.

LAT...LON 3868 9907 3821 9902 3811 9927 3833 9941
TIME...MOT...LOC 0551Z 230DEG 23KT 3833 9907

$$

18

000 
WWUS53 KDDC 170608
SVSDDC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
109 AM CDT THU APR 17 2008

KSC145-165-170619-
/O.EXP.KDDC.SV.W.0009.000000T0000Z-080417T0615Z/
RUSH KS-PAWNEE KS-
109 AM CDT THU APR 17 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL PAWNEE AND
EASTERN RUSH COUNTIES EXPIRES AT 115 AM CDT...

THE STORM HAS EXITED THE WARNED AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 AM CDT
THURSDAY MORNING FOR SOUTHWESTERN KANSAS.

LAT...LON 3868 9907 3821 9902 3811 9927 3833 9941
TIME...MOT...LOC 0609Z 230DEG 23KT 3840 9896

$$

18

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DODGE CITY KS
320 PM CDT WED APR 16 2008

.DISCUSSION...

DAYS 1-2...

H25 JET WAS DIVING SOUTH ACROSS THE PACIFIC NORTHWEST INTO NM BEFORE
TURNING NORTHEAST THROUGH NE AND INTO CANADA. JET STREAK OF 110KTS
WAS FOUND INTO EASTERN SD. HEIGHT FALLS OF 80 METERS IN ADVANCE OF
APPROACHING WESTERN TROUGH WERE SEEN ACROSS WESTERN CO WITH HEIGHT
RISES OF 130 METERS INTO THE NORTHWEST CONUS. BROAD TROUGH EXTENDED
FROM MT SOUTHWEST THROUGH SOUTHERN CA. H7 TEMPERATURES ACROSS THE
SOUTHERN AND CENTRAL PLAINS WERE IN THE SINGLE DIGITS ABOVE 0C AT
12Z THIS MORNING. BEHIND THIS TROUGH, TEENS BELOW 0C WERE FOUND. H85
TEMPERATURES IN THE TEENS ABOVE 0C EXTENDED NORTH FROM TX INTO THE
GREAT LAKES. AT THE SURFACE, 16Z ANALYSIS SHOWED A COLD FRONT
EXTENDED SOUTHWEST THROUGH SOUTHERN MN SOUTH INTO NORTHERN TX. A
DRYLINE EXTENDED FROM THE COLD FRONT IN THE TX PANHANDLE SOUTH
THROUGH WESTERN TX.

MAIN FORECAST ISSUE WILL BE THUNDERSTORM CHANCES TONIGHT AND PRECIP
THURSDAY.

MODELS ARE IN GOOD AGREEMENT PLACING UPPER TROUGH OVER THE ROCKIES
TONIGHT. BY 12Z THU, CLOSED LOW DEVELOPS NEAR THE FOUR CORNERS
REGION. ASSOCIATED S/WVS WILL MOVE ACROSS WESTERN KANSAS STARTING
THIS EVENING. SURFACE LOW PRESSURE MOVES NORTHEASTERN NM THIS
EVENING AS WELL. FRONT, CURRENTLY ACROSS WESTERN KS, WILL REMAIN
NEARLY STATIONARY THROUGH MUCH OF THE LATE EVENING HOURS. SURFACE
DEWPOINTS INCREASE INTO THE 50S ACROSS THE SOUTHEAST FA BY LATE
AFTERNOON. AS A RESULT, THE LIKELIHOOD OF CONVECTION ACROSS THE
EASTERN FA WILL INCREASE. GIVEN SOME CAPE WILL BE PRESENT AS FAR
WEST AS DODGE CITY OVERNIGHT TONIGHT AS THE SYSTEM PROGRESSES SLOWLY
EAST WITH FRONT WOBBLING A LITTLE ACROSS THE FA. LIS AHEAD OF THE
FRONT ARE BELOW 0C. BULK OF INSTABILITY IS FOUND ALOFT ACROSS THE
FA. FAIRLY GOOD CAP IN PLACE IN THE WARM SECTOR THROUGH EVENING. IT
DOES APPEAR LIKELY THAT THUNDERSTORMS WILL BE LATER TO DEVELOP DUE
TO THIS. ALSO, THESE STORMS SHOULD BE MORE ELEVATED IN NATURE GIVEN
THE LACK OF DEEP SURFACE MOISTURE. GFS PLACES BAROCLINIC ZONE A BIT
FURTHER NORTH BY 06Z THU THAN THE NAM WHILE THE RUC IS FURTHER NORTH
THAN BOTH. THUNDERSTORM DEVELOPMENT WILL MOST LIKELY BE IN THE
VICINITY OF THE ABOVE MENTIONED BAROCLINIC ZONE. GIVEN THIS, WILL
LEAN MORE TOWARD THE GFS FOR TIMING. VERY IMPRESSIVE 2D
FRONTOGENESIS WILL OCCUR FROM ELLIS COUNTY SOUTHWEST THROUGH SEWARD
COUNTY. IN ADDITION, 305K ISENTROPIC LIFT INCREASES BETWEEN 00Z THU
AND 06Z THU ACROSS MUCH OF THE FA. SPECIFIC HUMIDITY VALUES IN
EXCESS OF 7 G/KG ARE ALSO PRESENT DURING THIS TIME. PW VALUES ARE ON
THE ORDER OF 1 INCH ACROSS THE NE FA TO NEARLY AN INCH ACROSS THE
CENTRAL FA. FURTHER WEST, NEAR THE CO BORDER, LESSER AMOUNTS ARE
FOUND. GIVEN THIS, WILL INCREASE POPS ACROSS MUCH OF THE FA
OVERNIGHT NIGHT. THERE WILL BE A CHANCE FOR A FEW OF THESE STORMS TO
BE SEVERE WITH LARGE HAIL BEING THE MAIN THREAT.

THURSDAY, SURFACE LOW WILL BE MOVING NORTHEAST. ISENTROPIC LIFT IS
DIMINISHED BUT DOWNGLIDE DOES NOT REALLY KICK IN UNTIL LATE EVENING.
SPECIFIC HUMIDITY VALUES ARE STILL FAIRLY HIGH. SOUNDINGS SHOW
PLENTY OF LOW AND MID LEVEL MOISTURE AROUND BEHIND SYSTEM. WILL KEEP
SHOWERS AND CLOUDS ACROSS THE FA THROUGHOUT THE DAY. FURTHER EAST,
SHOWERS AND ISOLATED THUNDERSTORMS WILL BE SLOWER TO EXIT THE FA AS
THE SURFACE/UPPER LOW WILL BE CLOSER TO THAT REGION. THURSDAY NIGHT,
HIGH PRESSURE WILL MOVE ACROSS THE WESTERN FA AS THE UPPER SYSTEM
SLIDES INTO MO. HAVE LOWERED POPS FROM WEST TO EAST OVERNIGHT. MUCH
COOLER TEMPERATURES CAN BE ANTICIPATED THURSDAY AS COLD AIR
ADVECTION MOVES ACROSS FA. H5 TEMPERATURES ASSOCIATED WITH UPPER LOW
ARE IN THE -20C RANGE THURSDAY ACROSS WESTERN KS. H85 READINGS IN
THE SINGLE DIGITS ACROSS THE FA WITH A FEW NEAR TO JUST BELOW 0C
READINGS IN EASTERN CWA OVERNIGHT THURSDAY. HAVE LOWERED HIGH
TEMPERATURES A FEW DEGREES ACROSS THE CWA TO ACCOUNT FOR THIS.

FRIDAY, WARM AIR ADVECTION RETURNS TO SOUTHWEST KANSAS DURING THE
DAYTIME HOURS. H85 TEMPERATURES CLIMB TO THE MID TEENS ACROSS THE
WEST TO THE LOWER TEENS EAST. THIS IS THANKS TO A LEE TROUGH
STRENGTHENING ACROSS EASTERN CO/WESTERN KS BY EVENING. OVERALL,
MOSTLY SUNNY SKIES AND LIGHT WINDS WILL BE IN STORE FOR WESTERN
KANSAS.

DAYS 3-7...

AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BE TRANSITIONING EAST
ACROSS THE CENTRAL PLAINS TO BEGIN THE PERIOD FRIDAY NIGHT.
MEANWHILE, AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL BEGIN COMING
ASHORE IN THE PACIFIC NORTHWEST THIS WEEKEND. MEDIUM RANGE MODELS
ARE IN FAIR AGREEMENT...WITH THE MOST RECENT GFS RUN COMING MORE IN
LINE WITH THE ECMWF(HIRES)...INDICATING THIS SYSTEM MOVING SLOWLY
EAST ACROSS THE NORTHERN ROCKIES AND INTO THE NORTHERN HIGH PLAINS
EARLY NEXT WEEK. THIS WILL SET UP A SOUTHWESTERLY FLOW ALOFT ACROSS
THE CENTRAL PLAINS BY SUNDAY AND LASTING THROUGH THE END OF THE
PERIOD. NUMERICAL MODELS DO BEGIN TO DIFFER SOMEWHAT IN THE DETAILS
BY TUESDAY. HOWEVER, THEY DO AGREE POINTING TO A SERIES OF S/WAVES
PASSING THROUGH THE SOUTHWESTERLY FLOW ALOFT OUT OF THE ROCKIES AND
INTO THE CENTRAL PLAINS WHILE THE MORE PRONOUNCED UPPER LEVEL LOW
SKIRTS JUST TO OUR NORTH AND LIFTS NORTHEASTWARD INTO CANADA. A
SLIGHT CHANCE FOR PRECIP MAY BE POSSIBLE AROUND THE TUESDAY TIME
FRAME BUT QUESTIONABLE MOISTURE AVAILABILITY AND THE FAIRLY NORTHERN
TRACK OF THE UPPER LEVEL SYSTEM TO OUR NORTH MAY LIMIT PRECIP
CHANCES. WILL KEEP THINGS DRY DUE TO UNCERTAINTY THIS FAR OUT.

AS FOR TEMPERATURES, A LEE SIDE TROUGH OF LOW PRESSURE WILL DEVELOP
BY EARLY SATURDAY SETTING UP A LOW LEVEL SOUTHERLY FLOW ACROSS
WESTERN KANSAS THROUGH THE END OF THE WEEKEND. THIS WILL ALLOW FOR A
GRADUAL WARMING TREND FOR BOTH SATURDAY AND SUNDAY. TEMPERATURES AT
H85 WILL RANGE FROM THE MID TEENS(C) EAST TO THE LOWER 20S(C) WEST
ON SATURDAY WITH A SLIGHT INCREASE OF H85 TEMPERATURES ON SUNDAY. A
COLD FRONT WILL PUSH THROUGH THE REGION MONDAY ALLOWING FOR
GENERALLY COOLER TEMPERATURES THROUGH MID WEEK.

&&

.AVIATION...

A STALLED FRONTAL BOUNDARY STRETCHING FROM THE TEXAS PANHANDLE
NORTHEAST INTO EASTERN KANSAS WILL MOVE VERY LITTLE DURING THE
OVERNIGHT HOURS TONIGHT. RAIN SHOWERS AND THUNDERSTORMS MAY BE
POSSIBLE AFTER 03Z AT OR AROUND ALL TAF SITES. EXPECT VFR CONDITIONS
INITIALLY THIS EVENING SCATTERED MID TO HIGH LEVEL CLOUDS. IFR/MVFR
CONDITIONS...MAINLY FOR CIGS...WILL BE POSSIBLE IN THE VICINITY OF
THUNDERSTORMS AND BECOMING MORE WIDESPREAD LATER TONIGHT AND TOWARDS
MORNING IN AREAS NORTH OF THE FRONT. WINDS WILL BE NORTHEASTERLY
TONIGHT WITH SPEEDS OF 15 TO 25 KTS AND GUSTY.

&&

.PRELIMINARY POINT TEMPS/POPS...
DDC  44  46  34  67 /  70  70  20   0
GCK  41  45  32  68 /  80  70  10   0
EHA  41  43  33  70 /  60  70  10   0
LBL  41  46  32  69 /  60  70  10   0
HYS  41  46  35  63 /  80  70  20   0
P28  50  53  39  63 /  60  70  40   0

&&

.DDC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

FN30/32/32

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DODGE CITY KS
332 AM CDT WED APR 16 2008

KSZ030-031-043>046-061>066-074>081-084>090-170845-
TREGO-ELLIS-SCOTT-LANE-NESS-RUSH-HAMILTON-KEARNY-FINNEY-HODGEMAN-
PAWNEE-STAFFORD-STANTON-GRANT-HASKELL-GRAY-FORD-EDWARDS-KIOWA-
PRATT-MORTON-STEVENS-SEWARD-MEADE-CLARK-COMANCHE-BARBER-
332 AM CDT WED APR 16 2008 /232 AM MDT WED APR 16 2008/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
KANSAS...SOUTH CENTRAL KANSAS...SOUTHWEST KANSAS AND WEST CENTRAL
KANSAS.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS THIS EVENING
BETWEEN 9 PM CDT AND MIDNIGHT...EAST OF A LINE FROM LA CROSSE TO
JETMORE TO DODGE CITY TO ASHLAND. THE MAIN HAZARD FROM THESE
STORMS WILL BE HAIL TO THE SIZE OF NICKELS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

THERE IS SLIGHT CHANCE OF SPOTTER ACTIVATION AFTER 9 PM CDT THIS
EVENING...EAST OF LA CROSSE TO JETMORE TO DODGE CITY TO ASHLAND LINE.

&&

FOR MORE INFORMATION VISIT OUR WEBPAGE AT HTTP://WEATHER.GOV/DDC

12

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
1128 PM CDT WED APR 16 2008

KSZ045-046-064-065-078-079-170515-
EDWARDS-FORD-HODGEMAN-NESS-PAWNEE-RUSH-
1128 PM CDT WED APR 16 2008

...SIGNIFICANT WEATHER ADVISORY FOR EDWARDS...FORD...HODGEMAN...
NESS...PAWNEE AND RUSH COUNTIES...

AT 1124 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR SPEARVILLE...MOVING NORTHEAST AT 30 MPH.

PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE POSSIBLE WITH THIS
STORM.

LAT...LON 3856 9959 3820 9900 3772 9966 3787 9989
TIME...MOT...LOC 0428Z 220DEG 31KT 3785 9967

18

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
1148 PM CDT WED APR 16 2008

KSZ043-044-061>063-077-170530-
FINNEY-GRAY-HAMILTON-KEARNY-LANE-SCOTT-
1148 PM CDT WED APR 16 2008

...SIGNIFICANT WEATHER ADVISORY FOR FINNEY...GRAY...HAMILTON...
KEARNY...LANE AND SCOTT COUNTIES...

AT 1142 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 11 MILES SOUTHEAST OF LYDIA...OR 13 MILES WEST OF
FRIEND...MOVING NORTHEAST AT 36 MPH.

NICKEL SIZE HAIL...AND WINDS AROUND 50 MPH ARE POSSIBLE WITH THIS
STORM.

LAT...LON 3826 10109 3868 10112 3869 10031 3801 10043
      3773 10151 3824 10155
TIME...MOT...LOC 0448Z 220DEG 31KT 3822 10110

18

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DODGE CITY KS
1158 PM CDT WED APR 16 2008

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

1136 PM     HAIL             7 W DIGHTON             38.48N 100.60W
04/16/2008  E0.88 INCH       LANE               KS   TRAINED SPOTTER

&&

BURKE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DODGE CITY KS
1226 AM CDT THU APR 17 2008

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

1223 AM     HAIL             1 SE FRIEND             38.24N 100.90W
04/17/2008  E0.75 INCH       FINNEY             KS   STORM CHASER

            HAIL COVERED THE GROUND.

&&

BURKE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DODGE CITY KS
1227 AM CDT THU APR 17 2008

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

1153 AM     HAIL             DIGHTON                 38.48N 100.47W
04/16/2008  M0.75 INCH       LANE               KS   LAW ENFORCEMENT

&&

06

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DODGE CITY KS
1236 AM CDT THU APR 17 2008

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

1230 AM     TSTM WND DMG     8 N GARDEN CITY         38.09N 100.86W
04/17/2008                   FINNEY             KS   LAW ENFORCEMENT

            STRONG STRAIGHT LINE WINDS BLEW OVER A SEMI-TRACTOR
            TRAILER TRUCK ON HIGHWAY 83, EIGHT MILES NORTH OF GARDEN
            CITY.

&&

BURKE