Alert archive / Arizona / Flash Flood Warnings in 2011
Flash Flood Warning 22, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 24, 2011, 4:25 PM MST for Cochise County, Arizona. It was in force for 3 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 24, 2011, 4:25 PM MST (23:25 UTC)
- Expired
- Jul 24, 2011, 7:15 PM MST
- In force
- 3 hr
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 122 km from the middle of the area, began a volume at 23:25 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 12:00Z, 11.4 hours before the alert went out and 150 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
- 362 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1054 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
827 WGUS55 KTWC 242325 FFWTWC AZC003-250130- /O.NEW.KTWC.FF.W.0022.110724T2325Z-110725T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 425 PM MST SUN JUL 24 2011 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... EASTERN COCHISE COUNTY IN SOUTHEAST ARIZONA... * UNTIL 630 PM MST * AT 411 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING HEAVY RAINFALL MOVING WEST FROM NEW MEXICO. THIS POTENTIAL FOR HEAVY RAINFALL...COUPLED WITH BURN SCARS FROM THE HORSESHOE 2 FIRE...WILL CREATE A HEIGHTENED POTENTIAL FOR FLASH FLOODING IN THIS AREA. IN ADDITION...THE NORTH SIDE OF THIS AREA HAS ALREADY RECEIVED RAINFALL UNDER THE PREVIOUS SMALL STREAM FLOOD ADVISORY. THIS FLASH FLOOD WARNING UPGRADES AND EXPANDS THE PREVIOUS FLOOD ADVISORY. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTAL... PARADISE AND CHIRICAHUA NATIONAL MONUMENT PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 3217 10954 3218 10905 3156 10906 3156 10948 $$ SMR
3 follow-up statements
348 WGUS75 KTWC 250028 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 528 PM MST SUN JUL 24 2011 AZC003-250130- /O.CON.KTWC.FF.W.0022.000000T0000Z-110725T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 528 PM MST SUN JUL 24 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MST FOR EASTERN COCHISE COUNTY... AT 515 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM CAPABLE OF PRODUCING HEAVY RAIN OVER THE WARNED AREA. RADAR CONTINUES TO ESTIMATE RAINFALL RATES UP TO A HALF INCH PER HOUR OVER NORTHERN PORTIONS OF THE HORSESHOE 2 FIRE AREA. GIVEN THE BURN SCAR...THIS AMOUNT MAY TRIGGER FLASH FLOODING. WITH ADDITIONAL RAINS ON THE WAY FROM NEW MEXICO...THE FLASH FLOOD WARNING REMAINS IN EFFECT. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTAL... PARADISE AND CHIRICAHUA NATIONAL MONUMENT PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. && LAT...LON 3217 10954 3218 10905 3156 10906 3156 10948 $$ SMR
796 WGUS55 KTWC 250113 FFWTWC AZC003-250215- /O.EXT.KTWC.FF.W.0022.000000T0000Z-110725T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 613 PM MST SUN JUL 24 2011 THE NATIONAL WEATHER SERVICE IN TUCSON HAS EXTENDED THE * FLASH FLOOD WARNING FOR... EASTERN COCHISE COUNTY IN SOUTHEAST ARIZONA... * UNTIL 715 PM MST * AT 601 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO SHOW RAINFALL RATES OVER THE HORSESHOE 2 BURN AREAS UP TO ONE HALF AN INCH PER HOUR. GIVEN THE BURN SCARS...THIS AMOUNT OF RAINFALL CAN STILL CREATE FLASH FLOOD ISSUES IN THE AREA. THUS...THE FLASH FLOOD WARNING HAS BEEN EXTENDED THROUGH 715 PM MST THIS EVENING. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PORTAL... PARADISE AND CHIRICAHUA NATIONAL MONUMENT PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. && LAT...LON 3217 10954 3218 10905 3156 10906 3156 10948 $$ SMR
637 WGUS75 KTWC 250210 FFSTWC FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 710 PM MST SUN JUL 24 2011 AZC003-250217- /O.EXP.KTWC.FF.W.0022.000000T0000Z-110725T0215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COCHISE AZ- 710 PM MST SUN JUL 24 2011 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 715 PM MST FOR EASTERN COCHISE COUNTY... AT 705 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE HEAVIEST RAINFALL OVER THE WARNING AREA HAD COME TO AN END. SHOWERS AND THUNDERSTORMS PERSIST OVER THE SOUTHERN HALF OF THE HORSESHOE 2 BURN AREA...MAINLY SOUTH OF PORTAL...AND THUS...A SMALL STREAM FLOOD ADVISORY WILL BE ISSUED TO COVER THE SMALL SCALE FLOOD ISSUES THAT THESE STORMS MAY CREATE. LIGHT RAINFALL IS EXPECTED TO CONTINUE OVER PORTAL AND THE CHIRICAHUA MONUMENT...BUT IT IS NOT EXPECTED TO TRIGGER ANY FLOODING CONCERNS. ALL THAT SAID...THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE. LAT...LON 3217 10954 3218 10905 3156 10906 3156 10948 $$ SMR
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 5:39 PM MST | Severe Thunderstorm Warning | TWC | Pima | 36 min |
| Jul 23, 5:41 PM MST | Severe Thunderstorm Warning | TWC | Pima | 34 min |
| Jul 23, 7:09 PM MST | Severe Thunderstorm Warning | TWC | Pima | 36 min |
| Jul 23, 9:23 PM MST | Areal Flood Advisory | TWC | Cochise | 82 min |
| Jul 24, 5:41 AM MST | Areal Flood Advisory | TWC | Cochise, Pima, Santa Cruz | 111 min |
| Jul 24, 6:36 AM MST | Flash Flood Watch | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 13 hr |
| Jul 24, 1:37 PM MST | Areal Flood Advisory | TWC | Cochise | 3 hr |
| Jul 24, 2:10 PM MST | Flash Flood Warning | TWC | Greenlee | 110 min |
| Jul 24, 4:05 PM MST | Severe Thunderstorm Warning | TWC | Graham | 40 min |
| Jul 24, 4:15 PM MST | Flash Flood Warning | TWC | Graham | 2 hr |
| Jul 24, 4:18 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 42 min |
| Jul 24, 4:38 PM MST | Flash Flood Warning | TWC | Cochise | 112 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.