Flood, San Juan
- When
- July 13, 8:00 AM MST to 8:30 AM MST
- Where
- San Juan County, La Sal
- Reported by
- GENERAL PUBLIC
- Coordinates
- 37.626, -109.805 (the zone’s center; the record gives no point)
Flood in Utah, July 13, 2001
A stationary thunderstorm just north of La Sal in the La Sal mountains produced heavy rain that resulted in water overflow of roadside ditches.
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.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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 GJT wrote it up.
A stationary thunderstorm just north of La Sal in the La Sal mountains produced heavy rain that resulted in water overflow of roadside ditches.
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 Grand Junction, CO wrote its last area forecast discussion before the first event at Jul 13, 2:07 AM MST, 5 hours 53 minutes earlier.
Area forecast discussion, Jul 13, 2:07 AM MST, 5 hours 53 minutes before
WESTERN COLORADO & EASTERN UTAH AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND JUNCTION CO 307 AM MDT FRI JUL 13 2001 QUIET MORNING OVER WESTERN COLORADO AND EASTERN UTAH AS LITTLE SUPPORT AND LESS IN THE WAY OF AVAILABLE MOISTURE NOW OVER THE AREA. THIS WILL BE SHORT-LIVED HOWEVER AS ANOTHER SURGE OF MOISTURE NOW MOVING NWD THROUGH AZ. MODELS HAVE ACTUALLY LATCHED ONTO A SLIGHTLY STRONGER SHRTWV MOVING N THRU AZ WHICH IS ALSO EVIDENT IN WATER VAPOR IMAGERY THIS MORNING. TIMING OF WAVE WILL BRING IT INTO OUR FA BY EARLY THIS AFTERNOON...JUST IN TIME FOR MAX HEATING. MORNING SUN EXPECTED TO ALLOW FOR A QUICK WARM-UP...AND WILL ALLOW FOR CONVECTIVE TEMPS TO BE REACHED EARLY. ATMOSPHERE SLIGHTLY DRIER THAN PREVIOUS DAYS WITH PRECIPITABLE WATER VALUES NOW UNDER 1 INCH. COOLING ALOFT ASSOCIATED WITH SHRTWV AND SLIGHTLY BETTER SHEAR PROFILE THAN PREVIOUS DAYS WILL ALLOW FOR SCATTERED AFTERNOON CONVECTION TO ONCE AGAIN FIRE. EXPECT A FEW STRONGER STORMS THIS AFTERNOON...SIMILAR TO EARLIER IN THE WEEK. HOWEVER...SHOULD CLOUD SHIELD ASSOCIATED WITH THE WAVE ARRIVE SOONER...THEN WE COULD SEE A REPEAT OF YESTERDAY. TIMING OF CLOUDS USING DISTANCE SPEED TOOLS INDICATE MID-MORNING BEFORE CLOUDS WILL ENTER OUR SRN ZONES...SO WILL GO WITH SCT POPS ACROSS THE CENTRAL AND SRN ZONES...WITH LOWER POPS UP NORTH. CONVECTION WILL CONTINUE INTO THE EVENING HOURS AND THEN DIMINISH LATE...SIMILAR TO RECENT DAYS. ANOTHER REPEAT IN STORE FOR SATURDAY AS RIDGE REMAINS JUST TO OUR EAST...KEEPING MOISTURE STREAMING OVER THE AREA. NO MAJOR SWINGS IN TEMPS...SO PERSISTENCE LOOKS GOOD. NO CHANGES TO EXTENDED. WESTERN COLORADO AND EASTERN UTAH EMERGENCY MANAGERS SHOULD MAINTAIN A HEIGHTENED LEVEL OF WEATHER AWARENESS THROUGH THIS EVENING DUE TO SCATTERED THUNDERSTORMS...SOME OF WHICH MAY PRODUCE LOCALLY HEAVY RAINFALL AND LARGE HAIL. COLTON .GJT...NONE.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Heat in Arkansas, July 13, 2001
- Flash Flooding and Hail in Colorado, July 13, 2001
- Hail and Damaging Wind in Texas, July 13, 2001
- Lightning Strike in Colorado, July 13, 2001
- Flash Flooding and Hail in Montana, July 13, 2001
- Flash Flood in Utah, July 13, 2001
- Damaging Wind in Florida, July 13, 2001
- Lightning Strike in Arkansas, July 13, 2001
- Damaging Wind in Mississippi, July 13, 2001
- Flash Flooding and Hail in Arkansas, July 13, 2001
- Flash Flood and Hail in Colorado, July 13, 2001
- Damaging Winds in Louisiana, July 13, 2001
More
Every storm in Utah in 2001Every state in 2001This day in weather historyWarnings in Utah, 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: 5257656.