Alert archive / Kansas / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 75, NWS Kansas City, MO

May 10, 1996Atchison County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at May 10, 1996, 4:44 AM CDT for Atchison County, Kansas. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 10, 1996, 4:44 AM CDT (09:44 UTC)
Expired
May 10, 1996, 5:15 AM CDT
In force
31 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Atchison County, KS

The radar

The Topeka radar (KTWX), 99 km from the middle of the area, began a volume at 09:43 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.

What was reported inside it

TimeReportWhereRemark
May 10, 4:45 AM CDTHail 0.88Atchison, KS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 9.7 hours before the alert went out and 66 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 1996-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2240 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 1996-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2240 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1083 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
239 m²/s²
Significant tornado parameter
1.5
Supercell composite
9.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMCI 100945
SVRMCI
KSC005-101015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
444 AM CDT FRI MAY 10 1996

* SEVERE THUNDERSTORM WARNING FOR
  ATCHISON COUNTY - NORTHEAST KANSAS

* UNTIL 515 AM CDT
 
* SOME LOCATIONS AFFECTED
    LANCASTER
    ATCHISON
    CUMMINGS

* AT 440 AM RADAR INDICATED A SEVERE THUNDERSTORM LOCATED NEAR
  LANCASTER MOVING NORTHEAST AT 40 MPH.

* THE STORM <WILL BE AT ATCHISON AT 450 AM.   THIS STORM WILL PRODUCE
HAIL TO 1 INCH AND  WINDS TO 60 MPH.

SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND DAMAGING WINDS.  FOR YOUR
SAFETY...MOVE INDOORS AND STAY AWAY FROM WINDOWS.



PC

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at May 10, 3:29 AM CDT, 1 hour 15 minutes earlier.

Area forecast discussion, May 10, 3:29 AM CDT, 1 hour 15 minutes before
NORTHWEST MISSOURI FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
329 AM CDT FRI MAY 10 1996

MAIN FCST CHALLENGES INCLUDE RW/TRW COVERAGE AND INTENSITY AND RELATED
QPF CONCERNS.  CONVECTION THAT TRIED TO DVLP AROUND 04Z IN XTRM NERN KS
GIVES AN IDEA OF WHAT TYPE OF ATMOS WE ARE DEALING WITH.  CELLS WENT UP
INITIALLY BUT HAD TROUBLE SURVIVING 100 J/KG CIN AND +12 700 MB TEMPS
BASED OFF 00Z TOP SNDG.  00Z ETA INITIALIZED 700 MB TEMPS WERE ENTIRELY
TOO COOL...BY AS MUCH AS 4 DEG.  THIS MAKES PARTS OF ETA FCST DIFFICULT
TO ACCEPT.  UNFORTUNATELY...HAD TROUBLE RETRIEVING NGM AND AVN SO HAVE
LITTLE ELSE TO GO ON.  AT ANY RATE...IT'S GOING TO TAKE SOME DYNAMIC
COOLING OF MID LEVEL TEMPS AND/OR FRONTAL LIFT TO REALLY GET THINGS
GOING.  LO AND BEHOLD...NATURE GIVES A FAIRLY STG SFC FRONT.  CURRENT
88D LOOP SHOWS RW/TRW DVLPG OVER NE KS ALG/JUST BEHIND SFC FRONT OR
OUTFLOW BNDRY LOCATED FM P35 TO JUST N OF MCI TO NR TOP.  BNDRY WAS ON
THE MOVE EARLIER TNGT BUT HAS SINCE SLOWED AND CONVECTION NOW BEGINNING
TO FIRE ALG IT.  WUD XPCT THIS TREND TO CONTINUE WITH EVENT TURNING
INTO MORE OF A RAIN EVENT THAN SVR THRT.

SOME DISCUSSION AROUND HERE AS TO NEED FOR CONTINUING FLASH FLOOD WATCH.
FOCUS FOR HVST R SHD BE A BIT SOUTH OF CWA...BUT WITH VERY LOW FFG
VALUES...INITIALLY HIGH PW'S AND FRONTAL/SYNOPTIC SCALE LIFTING THROUGH
AT LEAST 18Z WILL OPT TO KEEP WATCH GOING FOR TODAY.  DAY SHIFT MAY HAVE
TO TRIM BACK WATCH...ESPCLY IN NW...BUT HATE TO CANCEL WHOLE THING WITH
EXPECTED RW/TRW.  RW/TRW TO FINALLY SHUT OFF EARLY THIS EVE AFT PASSAGE
OF UPPER WAVE.

CONSIDERABLY COLDER AIR ON THE WAY BHND FRONT SO HIGHS TO OCCUR THIS
AM...WITH FALLING TEMPS THROUGH@OUT MUCH OF DAY.

MCI 074/044 82

JM

In the hours before

Special weather statement, May 10, 1:41 AM CDT, 3 hours 3 minutes before
KSZ025-057-102>105-MOZ001>008-011>017-020>025-028>032-037-038-043-
100715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
140 AM CDT FRI MAY 10 1996

...TORNADO WATCH 336 CANCELLED FOR MOST OF NORTHERN MISSOURI AND
NORTHEAST KANSAS...

TORNADO WATCH 336 THAT WAS IN EFFECT UNTIL 5 AM HAS BEEN CANCELLED FOR
THE COUNTIES OF ATCHISON...HOLT...BUCHANAN...PLATTE...CLAY...
JACKSON...CASS...CLINTON...DEKALB...NODAWAY...ANDREW...
WORTH...GENTRY...WORTH...HARRISON...DAVIESS...CALDWELL...RAY...
LAFAYETTE...MERCER...GRUNDY...LIVINGSTON...CARROLL...PUTNAM...
SULLIVAN...LINN...CHARITON...SCHUYLER...ADAIR AND MACON
OF NORTHERN MISSOURI AND ATCHISON...LEAVENWORTH...WYANDOT(TE...
JOHNSON...MIAMI AND DONIPHAN COUNTIES IN NORTHEAST KANSAS.

SCATTERED SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE THROUGH THE
REST OF THE EARLY MORNING HOURS AND FOR MUCH OF FRIDAY...BUT THE
THREAT OF SEVERE WEATHER HAS DIMINISHED.

JM

Nearby

Severe Thunderstorm Warnings in Kansas, 1996Every severe thunderstorm warning in 1996

Sources

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