Texas, 2001

Flash Flooding and Hail in Texas, June 29 to 30, 2001

June 29 to 30, 2001 · NWS FWD · 7 events in 4 counties and zones

June 29, 30 Episode NarrativeSeveral stalled outflow boundaries across North Texas allowed for more thunderstorm initiation. These storms moved very slowly and caused predominantly heavy rain across the Dallas/Fort Worth metroplex, northward to the Red River.

Where it happened

Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
7

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 FWD wrote it up.

June 29, 30 Episode NarrativeSeveral stalled outflow boundaries across North Texas allowed for more thunderstorm initiation. These storms moved very slowly and caused predominantly heavy rain across the Dallas/Fort Worth metroplex, northward to the Red River. A few reports of large hail were also received. During the last few days of June and the beginning of July, North Texas received much above normal rainfall, in what is normally a relatively dry time of year.

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 Fort Worth, TX wrote its last area forecast discussion before the first event at Jun 29, 2:20 PM CST, 3 hours 50 minutes earlier.

Area forecast discussion, Jun 29, 2:20 PM CST, 3 hours 50 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FORT WORTH TX
320 PM CDT FRI JUN 29 2001

SEVERAL DAYS AGO...A PATTERN WAS SETTING UP FOR WHAT I THOUGHT WOULD
BE A CHANCE FOR FAIRLY GENERAL RAINS ACROSS NORTH TEXAS.  A RATHER
VIGOROUS LOW PRESSURE CENTER ALOFT...WAS SLOWLY APPROACHING FROM THE
NORTHEAST...COMBINED WITH DECENT MOIST INFLOW FROM THE SOUTH. THE
INCREASE IN NORTHERLY FLOW ALOFT ON THE WEST SIDE OF THE UPPER LOW IS
A PATTERN THAT OFTEN RESULTS IN SOME NOCTURNAL STORMS...BECAUSE OF
STRONG STORM-RELATIVE MOISTURE CONVERGENCE FOR THE HIGH-BASED STORMS
...PROVIDED BY THE ENHANCED NOCTURNAL LOW-LEVEL JET AND THE SOUTHWARD
MOTION OF THESE STORMS.

THIS PROCESS HAS HAPPENED...BUT THE ACTIVITY HAS BEEN EXTREMELY
CONCENTRATED ACROSS EASTERN OKLAHOMA AND NORTHEAST TEXAS BY AN 850
MB FRONTAL ZONE.  THE THERMAL CONTRAST ZONE HAS PROVIDED
SIGNIFICANT UPLIFT (SEEN ON THE 305 DEGREE K ISENTROPIC SURFACE BY
THE PRESSURE ADVECTION TERM) WITHIN THE LIMITED AREA THAT HAS BEEN
BATTERED BY HEAVY NIGHTTIME AND MORNING CONVECTIVE RAINFALL. INSTEAD
OF MORE WIDESPREAD AND SCATTERED STORMS...WE HAVE SEEN LOCAL
CONCENTRATIONS OF HEAVY RAIN...REPEATEDLY OVER THE SAME AREA.

THIS PATTERN WILL BREAK DOWN SATURDAY NIGHT...AS A WEAKER LOW
PRESSURE CENTER ALOFT FORMS OVER SOUTH TEXAS.  THUS...WE WILL GO FOR
VERY HIGH POPS TONIGHT IN THE NORTHEAST (AGAIN)...AND GRADUALLY
LOWER RAIN CHANCES IN THAT AREA THROUGH THE WEEKEND. DAYTIME OUTFLOW
BOUNDARIES FROM THE OVERNIGHT STORMS HAVE BEEN ADEPT AT PRODUCING
SCATTERED STORMS ONLY IN EAST TEXAS DURING THE PAST AFTERNOONS...
BECAUSE OF A WEAKER CAPPING INVERSION IN THAT AREA. THIS WILL
CONTINUE...WITH LOWER RAIN CHANCES ELSEWHERE.  RAIN WILL BE MINIMAL
MONDAY THROUGH WEDNESDAY...WITH NORTHWEST FLOW ALOFT AND AN
APPROACHING FRONT RESULTING IN INCREASING RAIN CHANCES NEXT THURSDAY
...AND ESPECIALLY FRIDAY.

TEMPERATURES WILL WARM A BIT AS CLOUDS DECREASE THIS NEXT WEEK.

DFW 73/92/74/94 3221    ACT 74/94/73/93 1122

.FWD...NONE

26

The radar

The Dallas/Ft Worth radar (KFWS), 78 km away, was scanning. The volume nearest the first event began at 00:08 UTC.

Open the radar archive at this moment

Event by event

4 flash flood, 3 hail. Local standard time, as filed.

Hail, Dallas

When
June 29, 6:10 PM CST
Where
Dallas County, Rowlett
Measured
1 in hail
Reported by
AMATEUR RADIO
Coordinates
32.900, -96.567

Hail, Rockwall

When
June 29, 6:17 PM CST
Where
Rockwall County, Lake Ray Hubbard
Measured
0.75 in hail
Reported by
AIRPLANE PILOT
Coordinates
32.883, -96.500

Hail, Dallas

When
June 29, 7:05 PM CST
Where
Dallas County, Garland
Measured
2 in hail
Reported by
AMATEUR RADIO
Coordinates
32.917, -96.633

Flash Flood, Dallas

When
June 30, 7:55 AM CST
Where
Dallas County, Dallas
Reported by
AMATEUR RADIO
Coordinates
32.767, -96.778 (the zone’s center; the record gives no point)

Cars were floating in high water at Interstate 30 and Buckner.

Flash Flood, Dallas

When
June 30, 7:58 AM CST
Where
Dallas County, Mesquite
Reported by
AMATEUR RADIO
Coordinates
32.767, -96.778 (the zone’s center; the record gives no point)

A creek was out of its banks, flooding some nearby roads.

Flash Flood, Grayson

When
June 30, 8:25 AM CST
Where
Grayson County, Tioga
Reported by
LAW ENFORCEMENT
Coordinates
33.627, -96.678 (the zone’s center; the record gives no point)

Five inches of rain resulted in a bridge being washed out.

Flash Flood, Cooke

When
June 30, 8:25 AM CST
Where
Cooke County, Countywide
Reported by
LAW ENFORCEMENT
Coordinates
33.639, -97.213 (the zone’s center; the record gives no point)

Two farm to market roads were closed due to high water. This occurred in the southeast part of the county.

What these are

Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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

More

Every storm in Texas in 2001Every state in 2001This day in weather historyWarnings in Texas, June 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: 5252592, 5252594, 5252593, 5252595, 5252596, 5252597, 5252598.