Alert archive / Missouri / Flash Flood Warnings in 2002

Flash Flood Warning 61, NWS Springfield, MO

July 18, 2002Morgan County, Missouri

NWS Springfield, MO issued this flash flood warning at Jul 18, 2002, 6:31 PM CDT for Morgan County, Missouri. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 18, 2002, 6:31 PM CDT (23:31 UTC)
Expired: Jul 19, 2002, 12:30 AM CDT
In force: 6 hr
Issued by: NWS Springfield, MO
Area: Counties, with a storm outline in the text

County Morgan County, MO

The radar

The Pleasant Hill radar (KEAX), 120 km from the middle of the area, began a volume at 23:33 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

Springfield, MO (KSGF), launched 12:00Z, 11.5 hours before the alert went out and 189 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: 2076 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 601 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.5

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KSGF 182331
FFWSGF
MOC141-190530-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
629 PM CDT THU JUL 18 2002

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN MORGAN COUNTY IN MISSOURI

* UNTIL 1230 AM CDT

* AT 623 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH TORRENTIAL RAINFALL ACROSS THE WARNED AREA.  
  DOPPLER RADAR ESTIMATED THAT TWO TO THREE INCHES OF RAIN HAVE 
  ALREADY FALLEN WITH THIS THUNDERSTORM JUST NORTHWEST OF VERSAILLES.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING   
  INCLUDE...VERSAILLES AND STOVER.

ADDITIONAL RAINFALL AMOUNTS OF TWO TO THREE INCHES ARE LIKELY IN 
THE WARNED AREA.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 3834 9309 3836 9267 3863 9283 3866 9309

BOOKBINDER

1 follow-up statement

655 
RWUS32 KSGF 190351
FFSSGF
MOC141-190400-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1051 PM CDT THU JUL 18 2002

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR NORTHERN MORGAN
COUNTY HAS BEEN CANCELLED...

EXCESS RUNOFF FROM HEAVY RAINS EARLIER THIS EVENING...HAS ENDED OVER 
THE WARNED AREA. STREAMS AND CREEKS IN THE WARNED AREA HAVE 
RECEDED...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3848 9266 3837 9268 3838 9308 3860 9305
          3864 9285

BOOKBINDER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 10:33 AM CDT	Flash Flood Warning	SGF	Howell	3 hr
Jul 18, 12:00 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Lawrence	60 min
Jul 18, 1:19 PM CDT	Flash Flood Warning	SGF	Howell	4 hr
Jul 18, 1:25 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Polk, St. Clair	65 min
Jul 18, 1:49 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas	41 min
Jul 18, 1:54 PM CDT	Severe Thunderstorm Warning	SGF	Hickory, Polk	36 min
Jul 18, 2:21 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	39 min
Jul 18, 2:26 PM CDT	Severe Thunderstorm Warning	SGF	Barry	49 min
Jul 18, 2:59 PM CDT	Severe Thunderstorm Warning	SGF	Ozark, Taney	61 min
Jul 18, 3:31 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede	59 min
Jul 18, 3:56 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	34 min
Jul 18, 4:07 PM CDT	Severe Thunderstorm Warning	SGF	Maries	38 min
Jul 18, 4:40 PM CDT	Flash Flood Warning	SGF	Maries, Phelps	6 hr
Jul 18, 4:46 PM CDT	Flash Flood Warning	SGF	McDonald	6 hr
Jul 18, 5:08 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	52 min
Jul 18, 6:28 PM CDT	Severe Thunderstorm Warning	SGF	Morgan	47 min

Nearby

Flash Flood Warnings in Missouri, 2002 Every flash flood warning in 2002

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.