Alert archive / Illinois / Flash Flood Warnings in 2008

Flash Flood Warning 24, NWS St. Louis, MO

May 25, 2008Pike County, Illinois

NWS St. Louis, MO issued this flash flood warning at May 25, 2008, 9:48 AM CDT for Pike County, Illinois. It was in force for 3 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: May 25, 2008, 9:48 AM CDT (14:48 UTC)
Expired: May 25, 2008, 12:39 PM CDT
In force: 3 hr
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Flood severity: None

County Pike County, IL

The radar

The St Louis radar (KLSX), 95 km from the middle of the area, began a volume at 14:50 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

Lincoln, IL (KILX), launched 12:00Z, 2.8 hours before the alert went out and 210 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1337 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 233 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KLSX 251451
FFWLSX
ILC149-251845-
/O.NEW.KLSX.FF.W.0024.080525T1448Z-080525T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
948 AM CDT SUN MAY 25 2008

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN PIKE COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 145 PM CDT

* AT 945 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER THE WARNED AREA. RADAR
  ESTIMATES THAT 3 TO 4 INCHES OF RAIN HAS FALLEN OVER THE WARNED    
  AREA SINCE 730 AM THIS MORNING.

* FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE       
  AFFECTING BARRY...NEW CANTON...ROCKPORT...AND NEW HARTFORD.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

CHILDREN SHOULD NEVER BE ALLOWED TO PLAY IN AND NEAR FLOOD WATERS...
EVEN IF THE WATER APPEARS TO BE SHALLOW. THE FAST FLOWING WATER CAN
EASILY SWEEP A CHILD TO THEIR DEATH

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST
LOUIS.

LAT...LON 3940 9075 3940 9095 3970 9130 3977 9088
TIME...MOT...LOC 1448Z 180DEG 0KT 3957 9099

$$

CARNEY

1 follow-up statement

000 
WGUS73 KLSX 251739
FFSLSX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1239 PM CDT SUN MAY 25 2008

ILC149-251749-
/O.CAN.KLSX.FF.W.0024.000000T0000Z-080525T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIKE IL-
1239 PM CDT SUN MAY 25 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR WESTERN PIKE COUNTY
IN WEST CENTRAL ILLINOIS...

A CHECK WITH AREA LAW ENFORCEMENT INDICATES THAT FLOODING IS NO
LONGER A PROBLEM IN THE AREA.

LAT...LON 3940 9075 3940 9095 3970 9130 3977 9088
TIME...MOT...LOC 1739Z 180DEG 0KT 3957 9099

$$

MILLER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 6:58 AM CDT	Severe Thunderstorm Warning	LSX	Adams	47 min
May 25, 8:45 AM CDT	Areal Flood Advisory	LSX	Adams, Pike	6 hr
May 25, 10:02 AM CDT	Severe Thunderstorm Warning	LSX	Greene, Jersey, Macoupin	43 min
May 25, 10:25 AM CDT	Severe Thunderstorm Warning	LSX	Madison	51 min
May 25, 11:21 AM CDT	Severe Thunderstorm Warning	LSX	Bond	39 min
May 25, 11:31 AM CDT	Flash Flood Warning	LSX	Calhoun, Greene, Jersey	4 hr
May 25, 12:54 PM CDT	Severe Thunderstorm Warning	LSX	Madison	66 min
May 25, 1:37 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	38 min
May 25, 1:58 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette	62 min
May 25, 1:59 PM CDT	River Flood Warning	LSX	Calhoun, Jersey	3 days
May 25, 2:15 PM CDT	Severe Thunderstorm Warning	LSX	Marion	60 min
May 25, 3:18 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	42 min
May 25, 3:54 PM CDT	Flash Flood Warning	LSX	Monroe	3 hr
May 25, 3:57 PM CDT	Flash Flood Watch	LSX	Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more	71 hr
May 25, 4:00 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph, Saint Clair	60 min
May 25, 4:57 PM CDT	Severe Thunderstorm Warning	LSX	Randolph, Saint Clair, Washington	78 min
May 25, 5:27 PM CDT	Tornado Warning	LSX	Randolph	33 min
May 25, 6:26 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Pike	64 min
May 25, 6:32 PM CDT	Flash Flood Warning	LSX	Randolph	118 min

Nearby

Flash Flood Warnings in Illinois, 2008 Every flash flood warning in 2008

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.