Alert archive / Minnesota / Flash Flood Warnings in 2002

Flash Flood Warning 19, NWS Twin Cities, MN

July 10, 2002Douglas County, Pope County, Todd County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 10, 2002, 9:45 AM CDT for Douglas County, Pope County, Todd County, Minnesota. It was in force for 5 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 10, 2002, 9:45 AM CDT (14:45 UTC)
Expired
Jul 10, 2002, 2:45 PM CDT
In force
5 hr
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Douglas County, MN, Pope County, MN, Todd County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 2.8 hours before the alert went out and 176 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, Minneapolis, MN at 12:00Z on 2002-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 219 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, Minneapolis, MN at 12:00Z on 2002-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 285 square meters per square second.19395878Sfc1 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
219 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
571 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
285 m²/s²
0-3 km storm-relative helicity
383 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KMPX 101445
FFWMSP
MNC041-121-153-101945-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
944 AM CDT WED JUL 10 2002

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  TODD COUNTY IN CENTRAL MINNESOTA
  DOUGLAS COUNTY IN WEST CENTRAL MINNESOTA
  POPE COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 245 PM CDT

* AT 944 AM CDT...RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN
  OVER THE WARNED AREA.

* EXTREMELY HEAVY RAIN FELL OVERNIGHT...AND ADDITIONAL RAINFALL WILL 
  PRODUCE FLASH FLOODING.

ABSOLUTELY DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER
COVERS THE ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED. MOVE TO HIGHER GROUND.

LAT...LON 4634 9484 4587 9472 4581 9522 4553 9565
          4605 9567

$$
RJN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 2:00 AM CDTSevere Thunderstorm WarningMPXStevens45 min
Jul 10, 2:48 AM CDTSevere Thunderstorm WarningMPXPope, Stevens42 min
Jul 10, 4:02 AM CDTSevere Thunderstorm WarningMPXPope, Stearns43 min
Jul 10, 8:54 AM CDTFlash Flood WarningMPXAnoka, Benton, Carver, Chisago, Dakota, Hennepin and 13 more6 hr

Nearby

Flash Flood Warnings in Minnesota, 2002Every 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.