Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 12, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 9, 2011, 7:15 PM MST for Pima County, Arizona. 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 outline as issued.
The facts
- Issued
- Jul 9, 2011, 7:15 PM MST (02:15 UTC)
- Expired
- Jul 9, 2011, 9:15 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Pima County, AZ
The radar
The Tucson radar (KEMX), 97 km from the middle of the area, began a volume at 02:17 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 2.3 hours before the alert went out and 83 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
- 188 J/kg
- Mixed-layer CIN
- -305 J/kg
- Mixed-layer LCL
- 3009 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
601
WGUS55 KTWC 100215
FFWTWC
AZC019-100415-
/O.NEW.KTWC.FF.W.0012.110710T0215Z-110710T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
715 PM MST SAT JUL 9 2011
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA...
* UNTIL 915 PM MST
* AT 708 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM THUNDERSTORMS IN SOUTHERN PORTIONS OF THE
TOHONO O'ODHAM NATION ALONG A LINE EXTENDING FROM FRESNAL CANYON
TO 7 MILES SOUTH OF FRESNAL CANYON TO CHOULIC...OR ALONG A LINE
EXTENDING FROM 12 MILES SOUTHEAST OF SELLS TO 24 MILES SOUTHEAST
OF SELLS...MOVING NORTHWEST AT 5 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SAN
MIGUEL AND SOUTH KOMELIK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES
AND STREAMS...URBAN AREAS...AND ROADS AS WELL AS OTHER DRAINAGE
AREAS AND LOW LYING SPOTS.
&&
LAT...LON 3191 11145 3164 11154 3153 11169 3168 11189
3182 11179 3201 11177
$$
MEYER2 follow-up statements
933
WGUS75 KTWC 100242
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
742 PM MST SAT JUL 9 2011
AZC019-100415-
/O.CON.KTWC.FF.W.0012.000000T0000Z-110710T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
742 PM MST SAT JUL 9 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM MST FOR SOUTH
CENTRAL PIMA COUNTY...
AT 735 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE STRONG TO SEVERE THUNDERSTORMS PRODUCING FLASH FLOODING
ACROSS SOUTHERN PORTIONS OF THE TOHONO O'ODHAM NATION. THESE STORMS
WERE LOCATED SOUTHEAST OF SELLS ALONG A LINE EXTENDING FROM FRESNAL
CANYON TO 6 MILES SOUTH OF FRESNAL CANYON TO SAN MIGUEL...MOVING
NORTHWEST AT 5 MPH. RADAR RAINFALL ESTIMATES EXCEEDED 2 INCHES OVER
THE FRESNAL WASH AND VAMORI WASH JUST NORTHEAST OF SAN MIGUEL.
OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CHOULIC
AND SOUTH KOMELIK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND ROADS. ADDITIONALLY...COUNTRY ROADS AND LANDS
ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE
SUBJECT TO FLOODING.
&&
LAT...LON 3191 11145 3164 11154 3153 11169 3168 11189
3182 11179 3201 11177
$$
MEYER086
WGUS75 KTWC 100320
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
820 PM MST SAT JUL 9 2011
AZC019-100415-
/O.CON.KTWC.FF.W.0012.000000T0000Z-110710T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
820 PM MST SAT JUL 9 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 PM MST FOR SOUTH
CENTRAL PIMA COUNTY...
AT 812 PM MST...SHOWERS AND THUNDERSTORMS WERE WEAKENING IN SOME
SOUTHERN PORTIONS OF THE TOHONO O'ODHAM NATION INCLUDING THE FRESNAL
CANYON...SOUTH KOMELIK...AND SAN MIGUEL AREAS. RUNOFF FROM HEAVY
RAIN IS CREATING EXTREMELY HEAVY FLOW IN THE FRESNAL
WASH...BABOQUIVARI WASH...AND ESPECIALLY THE VAMORI WASH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS...STREAMS AND ROADS. ADDITIONALLY...COUNTRY ROADS AND LANDS
ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE
SUBJECT TO FLOODING.
&&
LAT...LON 3191 11145 3164 11154 3153 11169 3168 11189
3182 11179 3201 11177
$$
MEYERThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 5:00 PM MST | Areal Flood Advisory | TWC | Pima, Pinal | 2 hr |
| Jul 9, 5:23 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 112 min |
| Jul 9, 6:10 PM MST | Areal Flood Advisory | TWC | Cochise | 110 min |
| Jul 9, 7:21 PM MST | Severe Thunderstorm Warning | TWC | Pima | 54 min |
| Jul 9, 7:30 PM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Jul 10, 12:08 AM MST | Areal Flood Advisory | TWC | Pima | 3 hr |
| Jul 10, 12:37 PM MST | Special Weather Statement | TWC | 38 min | |
| Jul 10, 1:11 PM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 5 hr |
| Jul 10, 2:03 PM MST | Flash Flood Warning | TWC | Cochise | 117 min |
Nearby
Flash Flood Warnings in Arizona, 2011Every flash flood warning in 2011
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; radar from the NEXRAD Level II archive.