Alert archive / Arizona / Red Flag Warnings in 2014
Red Flag Warning 13, NWS Tucson, AZ
NWS Tucson, AZ issued this red flag warning at Apr 30, 2014, 2:38 PM MST for 4 counties in Arizona. It took effect at May 1, 2014, 8:00 AM MST. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 30, 2014, 2:38 PM MST (21:38 UTC)
- In effect from
- May 1, 2014, 8:00 AM MST
- Expired
- May 1, 2014, 1:00 PM MST
- In force
- 5 hr
- Issued by
- NWS Tucson, AZ
Counties Cochise County, AZ, Pima County, AZ, Pinal County, AZ, Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 37 km from the middle of the area, began a volume at 21:36 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 (KDMA), launched 12:00Z, 9.6 hours before the alert went out and 8 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 4220 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -54 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
163 WWUS85 KTWC 302138 RFWTWC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 238 PM MST WED APR 30 2014 AZZ150-151-010900- /O.NEW.KTWC.FW.W.0013.140501T1500Z-140501T2000Z/ ARIZONA FIRE WEATHER ZONE 150 WESTERN PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY- TOHONO OODHAM NATION-TDC-ARIZONA FIRE WEATHER ZONE 151 EASTERN PIMA COUNTY-SOUTHEASTERN PINAL COUNTY- SANTA CRUZ COUNTY-WESTERN COCHISE COUNTY- CORONADO NF-TDC- 238 PM MST WED APR 30 2014 ...RED FLAG WARNING IN EFFECT FROM 8 AM TO 1 PM MST THURSDAY FOR STRONG EAST WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER FOR PORTIONS OF FIRE ZONES 150 AND 151... THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 8 AM TO 1 PM MST THURSDAY. * AFFECTED AREA...FIRE ZONE 151 WEST OF BENSON INCLUDING THE TUCSON METRO AREA AND THE EASTERN THIRD OF FIRE ZONE 150...BASICALLY FROM SELLS EAST. * TIMING...8 AM THURSDAY THROUGH 1 PM THURSDAY * 20 FT WINDS...EAST 15 TO 25 MPH DEVELOPING ACROSS THE WARNED AREA LATE TONIGHT...LOCALLY INCREASING TO 20 TO 30 MPH AFTER 0500 THURSDAY MORNING WITH GUSTS AROUND 40 MPH. WINDS EASING BELOW 20 MPH BY EARLY THURSDAY AFTERNOON. * RELATIVE HUMIDITY...POOR OVERNIGHT RECOVERIES WILL ALLOW THE RH LEVELS TO DROP BELOW 15 PERCENT EARLY THURSDAY MORNING AND EVENTUALLY BOTTOM OUT IN THE 8 TO 14 PERCENT RANGE. * IMPACTS...THE STRONG WINDS ARE EXPECTED TO DEVELOP IN THE AREAS NORMALLY PRONE TO EAST WINDS AND COMBINED WITH THE POOR OVERNIGHT RECOVERIES WILL ALLOW FOR THE POTENTIAL FOR RAPID FIRE SPREAD EARLY IN THE DAY WHICH IS GENERALLY NOT TYPICAL. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND HIGH FIRE DANGER WILL CREATE THE POTENTIAL FOR RAPID AND ERRATIC FIRE GROWTH. PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE FIELD OF THE RED FLAG WARNING FOR PORTIONS OF SOUTHEAST ARIZONA. && $$ CERNIGLIA VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON
3 follow-up statements
670 WWUS85 KTWC 010442 RFWTWC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 942 PM MST WED APR 30 2014 AZZ150-151-011200- /O.CON.KTWC.FW.W.0013.140501T1500Z-140501T2000Z/ ARIZONA FIRE WEATHER ZONE 150 WESTERN PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY- TOHONO OODHAM NATION-TDC-ARIZONA FIRE WEATHER ZONE 151 EASTERN PIMA COUNTY-SOUTHEASTERN PINAL COUNTY- SANTA CRUZ COUNTY-WESTERN COCHISE COUNTY- CORONADO NF-TDC- 942 PM MST WED APR 30 2014 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM TO 1 PM MST THURSDAY... A RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM TO 1 PM MST THURSDAY. * AFFECTED AREA...FIRE ZONE 151 WEST OF BENSON INCLUDING THE TUCSON METRO AREA AND THE EASTERN THIRD OF FIRE ZONE 150... BASICALLY FROM SELLS EAST. * TIMING...8 AM THURSDAY THROUGH 1 PM THURSDAY * 20 FT WINDS...EAST 15 TO 25 MPH DEVELOPING ACROSS THE WARNED AREA LATE TONIGHT...LOCALLY INCREASING TO 20 TO 30 MPH AFTER 5 AM THURSDAY MORNING WITH GUSTS AROUND 40 MPH. WINDS EASING BELOW 20 MPH BY EARLY THURSDAY AFTERNOON. * RELATIVE HUMIDITY...POOR OVERNIGHT RECOVERIES WILL ALLOW THE RH LEVELS TO DROP BELOW 15 PERCENT EARLY THURSDAY MORNING AND EVENTUALLY BOTTOM OUT IN THE 8 TO 14 PERCENT RANGE. * IMPACTS...THE STRONG WINDS ARE EXPECTED TO DEVELOP IN THE AREAS NORMALLY PRONE TO EAST WINDS AND COMBINED WITH THE POOR OVERNIGHT RECOVERIES WILL ALLOW FOR THE POTENTIAL FOR RAPID FIRE SPREAD EARLY IN THE DAY WHICH IS GENERALLY NOT TYPICAL. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND HIGH FIRE DANGER WILL CREATE THE POTENTIAL FOR RAPID AND ERRATIC FIRE GROWTH. PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE FIELD OF THE RED FLAG WARNING FOR PORTIONS OF SOUTHEAST ARIZONA. && $$ VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON
775 WWUS85 KTWC 010937 RFWTWC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 237 AM MST THU MAY 1 2014 AZZ150-151-012000- /O.CON.KTWC.FW.W.0013.140501T1500Z-140501T2000Z/ ARIZONA FIRE WEATHER ZONE 150 WESTERN PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY- TOHONO OODHAM NATION-TDC-ARIZONA FIRE WEATHER ZONE 151 EASTERN PIMA COUNTY-SOUTHEASTERN PINAL COUNTY- SANTA CRUZ COUNTY-WESTERN COCHISE COUNTY- CORONADO NF-TDC- 237 AM MST THU MAY 1 2014 ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 1 PM MST THIS AFTERNOON FOR STRONG WINDS...LOW RELATIVE HUMIDITY AND HIGH FIRE DANGER FOR PORTIONS OF CENTRAL AND EASTERN PIMA... SOUTHEAST PINAL AND NORTHERN SANTA CRUZ COUNTIES... A RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 1 PM MST THIS AFTERNOON. * AFFECTED AREA...FIRE ZONE 151 WEST OF BENSON INCLUDING THE TUCSON METRO AREA AS WELL AS THE EASTERN THIRD OF FIRE ZONE 150...FROM SELLS EAST. THIS INCLUDES PORTIONS OF CENTRAL AND EASTERN PIMA...SOUTHEAST PINAL AND NORTHERN SANTA CRUZ COUNTIES. * TIMING...8 AM THIS MORNING THROUGH 1 PM THURSDAY. * 20 FT WINDS...EAST TO SOUTHEAST 15 TO 25 MPH...INCREASING TO 20 TO 30 MPH BY MID-MORNING...WITH GUSTS AROUND 40 MPH. WINDS WILL THEN RELAX BELOW 20 MPH BY EARLY THIS AFTERNOON. * RELATIVE HUMIDITY...POOR OVERNIGHT RECOVERIES WILL RESULT IN HUMIDITY LEVELS BELOW 15 PERCENT THIS MORNING...BOTTOMING OUT IN THE 8 TO 14 PERCENT RANGE. * IMPACTS...THE STRONG WINDS ARE EXPECTED TO DEVELOP IN THE AREAS NORMALLY PRONE TO EAST WINDS. THIS COMBINED WITH POOR OVERNIGHT HUMIDITY RECOVERIES WILL ALLOW FOR THE POTENTIAL FOR RAPID FIRE SPREAD EARLY IN THE DAY WHICH IS GENERALLY NOT TYPICAL. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND HIGH FIRE DANGER WILL CREATE THE POTENTIAL FOR RAPID AND ERRATIC FIRE GROWTH. PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE FIELD OF THE RED FLAG WARNING FOR PORTIONS OF SOUTHEAST ARIZONA. && $$ VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON
373 WWUS85 KTWC 011959 RFWTWC URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TUCSON AZ 1259 PM MST THU MAY 1 2014 AZZ150-151-012100- /O.EXP.KTWC.FW.W.0013.000000T0000Z-140501T2000Z/ ARIZONA FIRE WEATHER ZONE 150 WESTERN PIMA COUNTY-SOUTH CENTRAL PINAL COUNTY- TOHONO OODHAM NATION-TDC-ARIZONA FIRE WEATHER ZONE 151 EASTERN PIMA COUNTY-SOUTHEASTERN PINAL COUNTY- SANTA CRUZ COUNTY-WESTERN COCHISE COUNTY- CORONADO NF-TDC- 1259 PM MST THU MAY 1 2014 ...RED FLAG WARNING WILL EXPIRE AT 1 PM MST THIS AFTERNOON... THE NATIONAL WEATHER SERVICE IN TUCSON WILL ALLOW THE RED FLAG WARNING TO EXPIRE AT 1 PM MST THIS AFTERNOON. STRONG EASTERLY WINDS HAVE BEEN STEADILY DECREASING OVER THE PAST HOUR OR SO. THEREFORE...CONDITIONS THAT WOULD WARRANT A RED FLAG WARNING NO LONGER EXISTS. SO THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 1 PM MST. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB $$ VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 2:37 PM MST | Wind Advisory | TWC | Cochise, Graham, Pima, Pinal, Santa Cruz | 21 hr |
Nearby
Red Flag Warnings in Arizona, 2014Every red flag 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; radar from the NEXRAD Level II archive.