Alert archive / Arizona / Flash Flood Warnings in 2014
Flash Flood Warning 73, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 21, 2014, 4:54 PM MST for Santa Cruz 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
- Sep 21, 2014, 4:54 PM MST (23:54 UTC)
- Expired
- Sep 21, 2014, 7:00 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Santa Cruz County, AZ
The nearest sounding before it
Tuscon, AZ (KDMA), launched 12:00Z, 11.9 hours before the alert went out and 89 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
- 20 J/kg
- Mixed-layer CIN
- -225 J/kg
- Mixed-layer LCL
- 1633 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
819
WGUS55 KTWC 212354
FFWTWC
AZC023-220200-
/O.NEW.KTWC.FF.W.0073.140921T2354Z-140922T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
454 PM MST SUN SEP 21 2014
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA...
THIS INCLUDES THE CITY OF NOGALES...
* UNTIL 700 PM MST
* AT 454 PM MST...FLASH FLOODING WAS REPORTED FROM A THUNDERSTORM
OVER THE WARNED AREA.
* THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER
MAINLY RURAL AREAS OF THE INDICATED COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
&&
LAT...LON 3138 11096 3145 11086 3140 11082 3132 11082
3132 11096 3133 11096
$$2 follow-up statements
398
WGUS75 KTWC 220059
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
559 PM MST SUN SEP 21 2014
AZC023-220200-
/O.CON.KTWC.FF.W.0073.000000T0000Z-140922T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ AZ-
559 PM MST SUN SEP 21 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM MST FOR SOUTH
CENTRAL SANTA CRUZ COUNTY...
AT 554 PM MST...SHOWERS AND THUNDERSTORM ACTIVITY HAS DIMINISH OVER
THE WARNED AREA...THOUGH HEAVY RAINFALL SOUTH OF THE BORDER AND EAST
OF THE NOGALES WASH WILL KEEP THE THREAT OF FLASH FLOODING IN PLACE.
THE MAIN AREA OF CONCERN WILL BE THE NOGALES WASH AS FLOOD WATERS
CROSS THE BORDER AND MIX WITH ANY FLOWS FROM THE EAST.
NEVERTHELESS...LOCALIZED FLASH FLOODING AND PONDING OF WATER ON
ROADWAYS WILL LIKELY BE PRESENT ACROSS BOTH THE RURAL AREAS AND THE
CITY OF NOGALES.
LAT...LON 3138 11096 3145 11086 3140 11082 3132 11082
3132 11096 3133 11096
$$909
WGUS75 KTWC 220152
FFSTWC
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
652 PM MST SUN SEP 21 2014
AZC023-220202-
/O.EXP.KTWC.FF.W.0073.000000T0000Z-140922T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SANTA CRUZ AZ-
652 PM MST SUN SEP 21 2014
...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 PM MST FOR SOUTH
CENTRAL SANTA CRUZ COUNTY...
LAT...LON 3138 11096 3145 11086 3140 11082 3132 11082
3132 11096 3133 11096
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 1:50 PM MST | Special Weather Statement | TWC | Cochise | 25 min |
| Sep 21, 2:15 PM MST | Special Weather Statement | TWC | Cochise | 30 min |
| Sep 21, 2:29 PM MST | Areal Flood Advisory | TWC | Cochise | 2 hr |
| Sep 21, 4:23 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2014Every flash flood warning in 2014
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.