Alert archive / Minnesota / Flash Flood Warnings in 2002

Flash Flood Warning 1, NWS Twin Cities, MN

May 8, 20026 counties in Minnesota

NWS Twin Cities, MN issued this flash flood warning at May 8, 2002, 12:17 PM CDT for 6 counties in Minnesota. 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 8, 2002, 12:17 PM CDT (17:17 UTC)
Expired: May 8, 2002, 3:00 PM CDT
In force: 3 hr
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Brown County, MN, Chippewa County, MN, Lac qui Parle County, MN, Redwood County, MN, Renville County, MN, Yellow Medicine County, MN

The radar

The Sioux Falls radar (KFSD), 154 km from the middle of the area, began a volume at 17:20 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

Minneapolis, MN (KMPX), launched 12:00Z, 5.3 hours before the alert went out and 161 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: 565 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 401 m²/s²
0-3 km storm-relative helicity: 393 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 KMPX 081717 CCA
FFWMSP
MNC015-023-073-127-129-173-082000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1212 PM CDT WED MAY 8 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA
  CHIPPEWA COUNTY IN WEST CENTRAL MINNESOTA
  YELLOW MEDICINE COUNTY IN WEST CENTRAL MINNESOTA
  RENVILLE COUNTY IN CENTRAL MINNESOTA
  REDWOOD COUNTY IN SOUTHWEST MINNESOTA
  BROWN COUNTY IN SOUTH CENTRAL MINNESOTA

* UNTIL 300 PM CDT

* AT 1207 PM CDT...RADAR INDICATED STRONG THUNDERSTORMS CAPABLE OF   
  PRODUCING TORRENTIAL DOWNPOURS WITHIN A VERY SHORT SPAN WILL       
  CONTINUE TO TRACK OVER PARTS OF WEST CENTRAL MINNESOTA DURING THE  
  AFTERNOON.  RECENT RAINS FROM LAST NIGHT AND POTENTIAL RAINFALL    
  EXPECTED WITH THESE STORMS ARE LIKELY TO CAUSE SOME PONDING OF     
  WATER OVER ROADWAYS. RUNOFF FROM THESE RAINS WILL ALSO CAUSE SOME  
  MODERATE RISES ALONG SMALL CREEKS AND STREAMS. PEOPLE WITH         
  INTERESTS...ESPECIALLY NEAR LOWLYING AREAS SHOULD MOVE TO          
  HIGHER GROUND IMMEDIATELY.

* MOTORISTS SHOULD NOT ATTEMPT TO DRIVE THROUGH WATER OF UNKNOWN     
  DEPTH.

LAT...LON 4500 9544 4418 9442 4424 9643 4519 9643

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 11:50 AM CDT	Severe Thunderstorm Warning	MPX	Redwood	55 min
May 8, 12:07 PM CDT	Flash Flood Warning	MPX	Brown, Chippewa, Lac qui Parle, Redwood, Renville, Yellow Medicine	3 hr
May 8, 2:15 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Le Sueur, Nicollet	45 min
May 8, 2:48 PM CDT	Severe Thunderstorm Warning	MPX	Waseca	42 min
May 8, 2:54 PM CDT	Severe Thunderstorm Warning	MPX	Scott	36 min
May 8, 2:59 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	31 min
May 8, 3:04 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Rice	41 min
May 8, 3:42 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Rice	48 min
May 8, 4:28 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	47 min
May 8, 5:16 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	29 min
May 8, 5:24 PM CDT	Tornado Warning	MPX	Goodhue	36 min
May 8, 5:45 PM CDT	Severe Thunderstorm Warning	MPX	Carver	30 min

Nearby

Flash Flood Warnings in Minnesota, 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.