Alert archive / Minnesota / Flash Flood Warnings in 1998
Flash Flood Warning 9, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Aug 22, 1998, 9:14 PM CDT for 4 counties in Minnesota. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 22, 1998, 9:14 PM CDT (02:14 UTC)
- Expired
- Aug 22, 1998, 11:20 PM CDT
- In force
- 2 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
Counties Carver County, MN, Dakota County, MN, Hennepin County, MN, Scott County, MN
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.2 hours before the alert went out and 12 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.
- Mixed-layer CAPE
- 2973 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 823 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 351 m²/s²
- Significant tornado parameter
- 4.3
- Supercell composite
- 21.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMSP 230216 FFWMSP MNC019-037-053-139-230410- BULLETIN - EAS ACTIVATION REQUESTED MSPFFWMSP NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 914 PM CDT SAT AUG 22 1998 THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS ISSUED A * MSPFFWMSP FOR... EASTERN CARVER COUNTY IN EAST CENTRAL MINNESOTA DAKOTA COUNTY IN EAST CENTRAL MINNESOTA EXTREME SOUTHERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA NORTHERN SCOTT COUNTY IN EAST CENTRAL MINNESOTA * UNTIL 1120 PM CDT * AT 910 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN NEAR CHANHASSEN...TO BLOOMINGTON...SAVAGE AND BURNSVILLE...ABOUT 25 MILES SOUTHWEST TO 20 MILES SOUHTEAST OF MINNEAPOLIS. THE STORM WAS MOVING EAST SOUTHEAST AT 20 MPH. * DOPPLER RADAR WAS ESTIMATING RAINFALL RATES IN THE 1 TO 2 INCHES AN HOUR RANGE OVER EASTERN CARVER...NORTHERN SCOTT...EXTREME SOUTHERN HENNEPIN AND MUCH OF DAKOTA COUNTY THIS EVENING. SINCE 6 PM...2 TO 3 INCHES OF RAIN HAS FALLEN OVER THIS AREA. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! DWE
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 7:30 PM CDT | Severe Thunderstorm Warning | MPX | Carver, Hennepin | 65 min |
| Aug 22, 7:57 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Scott | 63 min |
| Aug 22, 8:10 PM CDT | Tornado Warning | MPX | Dakota, Scott | 30 min |
| Aug 22, 8:35 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Ramsey, Washington | 45 min |
| Aug 22, 8:35 PM CDT | Severe Thunderstorm Warning | MPX | Carver | 45 min |
| Aug 22, 8:40 PM CDT | Tornado Warning | MPX | Dakota | 65 min |
| Aug 22, 9:19 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 51 min |
| Aug 22, 9:27 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Scott | 63 min |
| Aug 22, 9:51 PM CDT | Flash Flood Warning | MPX | Scott | 69 min |
| Aug 23, 3:15 AM CDT | Severe Thunderstorm Warning | MPX | Lac qui Parle | 45 min |
| Aug 23, 3:33 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Swift | 42 min |
| Aug 23, 4:07 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi | 58 min |
| Aug 23, 4:10 AM CDT | Severe Thunderstorm Warning | MPX | Yellow Medicine | 35 min |
| Aug 23, 4:14 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Swift | 16 min |
| Aug 23, 4:40 AM CDT | Severe Thunderstorm Warning | MPX | Meeker | 60 min |
| Aug 23, 5:02 AM CDT | Severe Thunderstorm Warning | MPX | Wright | 43 min |
Nearby
Flash Flood Warnings in Minnesota, 1998Every flash flood warning in 1998
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.