SKYWARN · Arizona

NWS Tucson TWC

6 counties, 3 radars, one forecaster on the warning desk when it goes bad. This page is what that desk is looking at, plus the nets that feed it.

📺 Wall mode #az-wx

4 active · 1 warning

NWS checked 11:27 PM

High Wind WarningSevere · NPWTWC · until Sat 6:00 AM
Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson; Eastern Cochise County Below 5000 Feet including Douglas/Willcox; Upper Gila River and Aravaipa Valleys including Clifton/Safford; Galiuro and Pinaleno Mountains including Mount Graham; Chiricahua Mountains including Chiricahua National Monument; Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon; Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven
Wind AdvisoryModerate · NPWTWC · until Sat 9:00 PM
Baboquivari Mountains including Kitt Peak
Wind AdvisoryModerate · NPWTWC · until Sat 9:00 PM
Tohono O'odham Nation including Sells
Wind AdvisoryModerate · NPWTWC · until Sat 9:00 PM
Upper Santa Cruz River and Altar Valleys including Nogales; Tucson Metro Area including Tucson/Green Valley/Marana/Vail; South Central Pinal County including Eloy/Picacho Peak State Park; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson; Eastern Cochise County Below 5000 Feet including Douglas/Willcox; Upper Gila River and Aravaipa Valleys including Clifton/Safford; Galiuro and Pinaleno Mountains including Mount Graham; Chiricahua Mountains including Chiricahua National Monument; Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon; Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven

Radar

NWS RIDGE · base reflectivity · last hour

Deeper look: KEMX interactive ↗ · KEMX at College of DuPage ↗ · KIWA interactive ↗ · KIWA at College of DuPage ↗ - velocity, correlation coefficient and every tilt.

Satellite

GOES-East · SR sector · GeoColor

NOAA STAR · updates every 5 min · all bands ↗

SPC outlook · day 1

categorical

Marginal → Slight → Enhanced → Moderate → High · day 2 ↗ · mesoscale discussions ↗

Reports taken by this office today

0 · SPC preliminary

No spotter reports logged by TWC so far today (UTC).

Cameras near the office

none listed yet

No cameras listed near Tucson yet. Know one?

Radar tells you what the storm is doing; these tell you what it looks like. Pictures open at their source - ODOT and the Mesonet allow linking, not republishing.

SKYWARN & weather nets for this office

Suggest or fix one →

No net is listed for NWS Tucson yet. If you know the repeater and who runs it, suggest it - the state coordinator checks it and it shows up here and on the state hub. Never guess a frequency from memory; a wrong one during a warning is worse than none.

NOAA Weather Radio in this area

5 transmitters · this office’s first, neighbours after

162.475 MHz KXI24 · Saffordcovers Cochise, Cochise (NORTHWEST), Cochise (NORTHEAST), Cochise (SOUTHWEST), Cochise (SOUTHEAST), Graham, Greenlee · 80 W · NWS Tucson

162.500 MHz WNG703 · Nogalescovers Santa Cruz · 104 W · NWS Tucson

162.400 MHz WXL30 · Tucsoncovers Pima, Pima (NORTHEAST), Pima (WEST AND CENTRAL), Pima (SOUTHEAST), Pinal (SOUTHEAST) · 146 W · NWS Tucson

162.550 MHz KEC94 · Phoenixcovers Maricopa, Pinal (NORTHWEST) · 347 W · NWS Phoenix

162.425 MHz WWG41 · Payson Gila County N.covers Coconino (SOUTH), Gila, Maricopa (NC & NE), Pinal (WEST CENTRAL), Yavapai (SOUTHEAST) · 150 W · NWS Flagstaff

What to report, and where

Size charts and the full guide →

🌪️ Tornado, funnel, wall cloud

·Tornado on the ground (say if you see debris)
·Funnel cloud - rotating, not touching down
·Wall cloud, especially a rotating one
·Where it is relative to you, and which way it's moving

🧊 Hail

·The largest stone, compared to a coin or ball (chart below)
·1″ (quarter) is the severe threshold - smaller is still worth a report to most offices
·How long it fell and whether it's covering the ground

💨 Wind

·Measured gusts of 40 mph+; 58 mph is severe
·Damage: trees down, limbs bigger than your arm, roof or structure damage, power lines
·Say whether it was measured or estimated

🌊 Flooding

·Water over a road, especially moving water
·Creeks and rivers rising fast or out of their banks
·Rainfall of 1″ or more in an hour if you have a gauge

❄️ Winter

·Snowfall of 1″ an hour or more, and totals
·Freezing rain and ice accumulation on wires and trees
·Visibility under ¼ mile, blowing and drifting

🚫 Not this

·Lightning and thunder on their own
·Rain that isn't causing flooding
·Ordinary dark clouds, scud, or clouds that only look scary

1 · The net, if one is up
When the office activates SKYWARN, a net control on the local repeater takes reports in a set format and relays them straight to the forecaster. Listen first, check in when asked, keep it short: who, what, where, when.
2 · The office directly
No net running? Every office has a spotter line or online report form on its SKYWARN page - for you that’s NWS Tucson. Trained spotters get the number in class; anyone can use the form.
3 · Tell the room here
/report hail quarter · 71st & Memorial in #az-wx puts it in front of everyone watching the state. It does not reach the NWS - do 1 or 2 for that.

Counties served by NWS Tucson · 6

AZC003 Cochise

AZC009 Graham

AZC011 Greenlee

AZC019 Pima

AZC021 Pinal

AZC023 Santa Cruz