Flash Flood in Tennessee, July 28, 2001

Name: Flash Flood in Tennessee, July 28, 2001
Start: 2001-07-28T18:40
End: 2001-07-28T19:10
Location: Tennessee

July 28, 2001 · NWS MRX · 1 event in 1 county or zone

Flooding reported across Hixson Pike and Daisy Dallas Road in North Chattanooga. Water in home on Rogers Drive.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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Floods
Wind
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Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
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The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MRX wrote it up.

Flooding reported across Hixson Pike and Daisy Dallas Road in North Chattanooga. Water in home on Rogers Drive.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before the first event at Jul 28, 2:01 PM EST, 4 hours 39 minutes earlier.

Area forecast discussion, Jul 28, 2:01 PM EST, 4 hours 39 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
230 PM EDT SAT JUL 28 2001

...HEAVY PRECIPITATION EXPECTED OVERNIGHT AND EARLY SUNDAY...

FRONTAL BOUNDARY ALONG NE SIDE OF MRX CWA PULLS NE OF AREA
TONIGHT. LOW LEVEL SW FLOW CONTINUES AS SFC LOW PRESSURE
MOVES EAST THROUGH OHIO RVR VLY. WEAK SHORT WAVE MOVES THROUGH N
PART OF AREA EARLY TONIGHT. Q-VECTOR CONVERGENCE AND OMEGA
VALUES FAVORABLE FOR SIGNIFICANT CONVECTION EARLY AND THEN MORE
TO THE NE LATER TONIGHT AS SHORT WAVE MOVES OUT. WITH RELATIVELY
HIGH PW'S...SLOW STORM MOVEMENT AND RECENT RAINS...FLASH FLOOD WATCH
TO REMAIN IN EFFECT.
SUNDAY...SURFACE LOW MOVES SE OVER APPALACHIANS TO CENTRAL VIRGINIA.
CONVERGENT WIND BOUNDARY MOVES INTO E TN. STRONGER SHORT WAVE
SLIDES DOWN FROM THE NW TO OVER MRX CWA BY AFTERNOON. SUPPORT
FOR CONTINUED CONVECTION ON SUNDAY PROVIDED BY MAINLY BY MID/UPR
LEVEL DIFFLUENCE. SOME UPPER DRYING OCCURS AFTER 29/18Z BUT TEMPS DO
NOT COOL UNTIL SUNDAY NIGHT. BEST CHANCES APPEAR TO BE EARLY IN THE
DAY THOUGH LOW LEVEL BOUNDARY PROBABLY DOES MOVE THROUGH UNTIL EARLY
MONDAY.
SUNDAY NIGHT AND MONDAY...MID LEVEL DRY OUT NICELY...BUT
SUFFICIENTLY HIGH PW'S AND INSTABILITY VALUES REMAIN TO CONTINUE
CHC/SLGT CHC POPS DESPITE NW LAYER FLOW.

CHA TB 073/086 072/090 069 17783
TYS TB 072/084 070/087 067 17883
TRI TB 069/079 067/085 063 17++3
OQT TB 072/084 070/087 067 17883=

.MRX...
NC...NONE.
TN...FLASH FLOOD WATCH TONIGHT AND SUNDAY FOR NORTHEAST TENNESSEE.
VA...FLASH FLOOD WATCH TONIGHT AND SUNDAY FOR SOUTHWEST VIRGINIA.

SON

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Hamilton

When: July 28, 6:40 PM EST to 7:10 PM EST
Where: Hamilton County, Chattanooga
Reported by: EMERGENCY MANAGER
Coordinates: 35.181, -85.165 (the zone’s center; the record gives no point)

What these are

Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Tennessee in 2001 Every state in 2001 This day in weather history Warnings in Tennessee, July 2001

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5261913.